Board Certifications: Neurosurgery Specialty: Neurosurgery
Education: Second Moscow State Pirogov Medical Institute
Residency: Burdenko Neurosurgical Institute, Moscow, Russia, West Virginia University Hospital
Fellowships: University of Connecticut, Allegheny General Hospital

Update on Sublaminar Hook Fixation in Cervical Spine Trauma
James P. Burke, MD, PhD, Adnan A. Abla, MD (Pittsburgh, PA), Hikmat El Kadi, MD, PhD (Pittsburgh, PA), Jeffrey W. Bost, PAC (Pittsburgh, PA), Adib Abla (Pittsburgh, PA), Abir Abla (Pittsburgh, PA)

Authors: James P. Burke, MD, PhD, ; Adnan A. Abla, MD; Joseph C. Maroon, MD; Robert Relic, PAC; Jeffrey Bost, PAC; Hikmat El Kadi, MD, PhD; Adib Abla, ; Abir Abla,

Abstract:
Introduction: Anterior screw-plate fixation has become integral to the management of many pathological conditions of the subatlantal cervical spine. Complications of multilevel anterior cervical discectomy/fusions (ACDF) and corpectomies include implant failure with screw or plate dislodgement and pseudarthrosis with fibrous union at the fusion site, necessitating revision of the entire graft and instrumentation construct. We report radiographic and clinical outcomes following long-segment plating of the anterior cervical spine. Methods: From 1994 to 2000, one-hundred ten patients underwent multi-level ACDF and/or corpectomies using allograft bone and various anterior cervical plating systems. (Mean age 64.6 years, range 29-85; 90 males, 20 females). Pre-operative diagnoses were myeloradiculopathy (61), myelopathy (43), and other (6). In all cases, the etiology was degenerative disease. Anterior cervical instrumentation included Synthes' Cervical Spine Locking Plate (82), Sofamor-Danek's Atlantis (14) and Orion plates (13), and the Codman Locking Plate System (1). Fifty-eight three-level and 24 four-level ACDFs were performed; additionally, 16 three-level with corpectomy, 9 four-level with corpectomy and 3 five-level ACDFs with corpectomy were performed. Plate length ranged from 62 to 88mm; screw lengths were 12-16 mm (total screws, 860). Results: Radiographs at 1, 3, 6, 12, 18 and 24 months demonstrated fusion by 6 months in all patients. Two screw pullouts and one plate fracture were identified; no evidence of pseudoarthrosis or screw fracture was observed. Clinical outcome was excellent in all patients. Conclusions: We believe that meticulously shaving the endplates and placing the allograft bone plug in contact with the anterior rim of cortical bone provides for solid fusion. We conclude that, despite the technical challenges involved, many patients can safely and successfully undergo multi-level (>2 levels) ACDF and/or corpectomies with plating.

Authors: James P. Burke, MD, PhD, ; Adnan A. Abla, MD; Joseph C. Maroon, MD; Jeffrey Bost, PAC; Robert Relic, PAC; Hikmat El Kadi, MD, PhD; Adib Abla, ; Abir Abla,

Abstract:
Introduction: Lumbosacral pedicle screw fixation is a safe and effective technique for the promotion of spinal fusion. Postoperatively, a molded thoracolumbar orthosis (TLSO) has been prescribed for approximately 3 months, with "excessive exercise" avoided for the first few months. We present the outcome of 50 patients in whom a less rigid, smaller brace has been worn for only 2 months, with earlier initiation of physical therapy. Methods: Fifty patients underwent lumbosacral arthrodesis with TSRH pedicle screw instrumentation and lateral mass bone fusion. (Mean age 66.5 years, range 45-83; 29 females, 21 males). Surgical indications were degenerative spondylolisthesis, isthmic spondylolisthesis, post laminectomy spondylolisthesis, and severe spondylosis. Single and 2-level fusions were performed between L2-3 and L5-S1. Screw size ranged from 5.5 to 7.5 X 40 mm (total screws, 188). Postoperative radiographs were obtained at 2, 4, and 6 months. Results: No evidence of segmental instability or screw fracture was observed. In contrast to >300 similar patients, postoperative management included the Cybertech brace, a less rigid, smaller brace with better patient compliance than the traditional TLSO. Following the 2-month visit, physical therapy was started, and the brace discontinued, one month sooner than the prior group of patients. Return to work was permitted at 4 months, 2 months earlier than the prior group, resulting in a significant reduction in the socioeconomic cost of this operation. To date, good outcomes have been observed in all patients who were seen up to 6 months postoperatively. Conclusions: As spinal fusion, with its indications, criteria, and techniques, continues to evolve, advances in postoperative management are expected. We hope to continue to accelerate this process, as our patients appear to respond well to the aggressive recovery schedule.

Authors: James P. Burke, MD, PhD, ; Adnan A. Abla, MD; Joseph C. Maroon, MD; Jeff Bost, PAC; Robert Relic, MD; Hikmat El Kadi, MD, PhD; Adib Abla, ; Abir Abla,

Abstract:
Introduction: The technical difficulties of pedicle screw fusion following either prior fusion or prior laminectomy are well documented. Cerebrospinal fluid leaks and significant neural tissue trauma from dural scar removal are considered the greatest challenges of reoperative fusion. We present 45 patients who underwent "redo" lumbosacral spine fusion, and discuss techniques to avoid dural and nerve root injury. Methods: Forty-five patients underwent lumbosacral arthrodesis with TSRH pedicle screw instrumentation and lateral mass bone fusion. (Mean age 66.5 years, range 45-83; 24 females, 21 males). Surgical indications were degenerative spondylolisthesis, isthmic spondylolisthesis, post laminectomy spondylolisthesis, and severe spondylosis. Single and 2-level fusions were performed between L2-3 and L5-S1. Screw size ranged from 5.5 to 7.5 X 40 mm (total screws, 188). Postoperative radiographs were obtained at 2, 4, and 6 months. Results: Five screw fractures were identified. There were two post-operative infections. Clinically, all patients who were seen up to 24 months postoperatively had good outcomes, regardless as to whether a screw fracture had occurred. No patients required reoperation for spinal instrumentation, and no dural tears required additional surgical inter1vention. Conclusions: Our results suggest that this patient population can be operated on safely if several key points are followed. The most important point is the ability of the surgeon to locate normal anatomy. Locating normal anatomy can be done by dissecting medially towards the medial facet joint and exposing the residual bone under the scar tissue. Once completed bilaterally, the scar-covered dura can be identified and often exposed. Often scar attached to the dura can be left without compromising the decompression. These techniques and patient dissection have lead to better outcomes.

Authors: James P. Burke, MD, PhD, Adnan A. Abla, MD, (Pittsburgh, PA), Hikmat El Kadi, MD, PhD, (Pittsburgh, PA), Jeff Bost, PAC, (Pittsburgh, PA), Abir Abla, (Pittsburgh, PA), and Adib Abla(Pittsburgh, PA),

Abstract:
Objective: To evaluate the effect of age on the outcome of lumbosacral pedicle screw fixation. Methods: Between 1993 and 2000, 157 patients (range, 27 to 90 years) underwent pedicle screw arthrodesis of the lumbosacral spine for non-traumatic indications. Patients were grouped as those younger than 61 years (Group A: n=71, male 33, female 38, mean age 48.3 years), and those 61 years or greater (Group B: n=85, male 43, female 42, mean age 71.0 years). Fusion rates, complication rates, and clinical outcome were reviewed retrospectively. Outcome data included subjective, objective, and radiographic results. Results: Preoperative diagnoses differed significantly between the groups: isthmic spondylolisthesis accounted for 60% in Group A versus 10% in Group B, while degenerative spondylolisthesis accounted for 20% in Group A versus 52% in Group B. Preoperative motor scores, presence of fractures, and complications rates were the same in each group. Length of stay was not significantly different between the groups; however, 9% of the older patients required a rehabilitation stay post-hospitalization versus 3% of the younger patients. In Group B, 39% were fused at three or more levels versus only 15% of Group A patients. Outcomes, including fusion rates, clinical and subjective improvements, were similar between the groups. Conclusion: With the additional patients added to this analysis since 1998, there again is no significant difference in outcome based on patient age for lumbosacral pedicle screw arthrodesis. Again, we conclude that, using careful selection, adults of any age can safely undergo this operation

Authors: James P. Burke, MD, PhD, Adnan A. Abla, MD (Pittsburgh, PA), Hikmat El Kadi, MD, PhD (Pittsburgh, PA), Jeffrey W. Bost, PAC (Pittsburgh, PA), Adib Abla (Pittsburgh, PA), Abir Abla (Pittsburgh, PA)

Abstract:
OBJECTIVE: To further evaluate the success of sublaminar hook fixation in the treatment of spinal instability following cervical spine trauma. METHODS: Forty-one patients with unstable cervical spine fractures were treated with sublaminar hook fixation (ApoFix System¨, Sofamor-Danek) between 1993 and 2000. (59% male: 41% female; mean age, 54 years). The following injuries were treated: type II odontoid fractures (34%), unilateral or bilateral locked facets 20%), C1-C2 subluxation (19%), subaxial subluxation (20%), and angulated burst fractures (10%). Pre-operative examination was normal in 25 of the patients. Six patients had unilateral or bilateral radicular weakness, 5 were quadriplegic, and 5 had central cord syndrome. Twenty-seven (66%) of the patients underwent posterior cervical stabilization alone. These patients were positioned in mild extension, multiple radiographs were obtained to ensure alignment, and the sublaminar hooks were placed. The remainder of the patients also required anterior cervical discectomy and plating. All patients were placed in a hard cervical collar postoperatively. Average follow-up period was two years (range, 6 months to 3 years). RESULTS: No patient deteriorated neurologically from the procedure. All patients with radicular symptoms and central cord syndrome showed some improvement at 6 months. One of the four quadriplegic patients was ambulatory at three months. All patients showed radiographic evidence of fusion at 3 months, no patient developed late instability, and no patient required reoperation. CONCLUSION: Sublaminar hook fixation for cervical spine trauma continues to be a safe procedure and provides adequate support to prevent subluxation until bony fusion occurs.

Matt El-Kadi, M.D., Ph.D., F.A.C.S.

BIOGRAPHICAL

Name: Matt El-Kadi, M.D., Ph.D., F.A.C.S. Birth Date: August 8, 1954

Citizenship: USA

Business Tri-State Neurosurgical Associates

Address: UPMC Passavant Hospital,9100 Babcock Blvd, 2 Main, Ste. 2096, Pittsburgh, PA 15237

Email: elkadim@upmc.edu

Business Business

Phone: (412) 630-7640 Fax: (412) 630-7644

____________________________________________________________________________________

EDUCATION and TRAINING

GRADUATE:

1976-1983 Second Moscow State Pirogov Medical Institute

POSTGRADUATE:

1983-1989 Burdenko Neurosurgical Institute Resident Neurosurgery

Department of Neurosurgery

Moscow, Russia

1989-1992 LAC + USC Medical Center Research Fellow Neurosurgery

Department of Neurosurgery Brain tumor, Brain

Los Angeles, California Protection, & Radiotherapy

1992-1993 LAC + USC Medical Center Surgical Intern General

Department of Surgery Surgery

Los Angeles, California

1993-1994 University of Connecticut Clinical Fellow Neurosurgery

Department of Neurosurgery

Hartford, Connecticut

1994-1999 West Virginia University Resident Neurosurgery

Department of Neurosurgery

Morgantown, West Virginia

1997-1998 Allegheny General Hospital Fellow Neurosurgery

Pittsburgh, Pennsylvania

(Emphasis on complex spine cases

with instrumentation)

SPECIAL TRAINING:

Courses: Artificial Disc Course, Medtronic, August 4, 2007. Memphis, Tennessee

X-Stop Physician Course, Henderson, NV, July 22-23, 2006

Cervicore Investigator Training, Boston, MA, December 8, 2004.

Innovations in Spinal Fixation: An Advanced Course, Minimally Invasive Spinal Techniques, Medical Education and Research Institute, Memphis, TN, December 4-5, 2004.

Advanced Techniques in Spinal Decompression and Fixation, April 16-18 2004,

St. Louis, MO.

Innovations in Spinal Fixation: An Advanced Course, August 15, 2004, Boston, MA.

Practical course on Kyphoplasty: Use of Inflatable Bone Tamp for Fracture Reduction. November 22, 2003. Syracuse, NY.

Clinical and Practicial course on BAK Lumbar Inter body Fusion System,

December 12, 1998. Washington, D.C.

Practical course on Ray TFC technology for Lumbar Inter body Fusion November 7, 1998.

Spine Review Hands-on: For Young Neurosurgeons, August 15-21,1998. Albuquerque, New Mexico

AO/ASIF Comprehensive and Advanced Spine Course, July 16-19, 1998. Montreal, Canada

APPOINTMENTS and POSITIONS

ACADEMIC:

2006-present University of Pittsburgh Clinical Professor

School of Medicine, Department of Neurological, Pittsburgh, Pennsylvania Surgery

2005- present UPMC/ Passavant Hospital Vice Chairman of Head and

Neck Department

2005-present UPMC/Passavant Hospital Chief of Neurosurgery

2003-2006 University of Pittsburgh Clinical Associate

School of Medicine, Professor of Neurosurgery, Pittsburgh, Pennsylvania

1999-2003 University of Pittsburgh Clinical Assistant

School of Medicine Professor of Neurosurgery

Pittsburgh, Pennsylvania

1999-2001 West Virginia University Clinical Assistant

School of Medicine Professor of Neurosurgery

Morgantown, West Virginia

CERTIFICATION

SPECIALTY CERTIFICATION:

American Board of Neurological Surgeons Board Certified 2002

MEDICAL LICENSURE

State Medical Board of Ohio 1999

State Medical Board of Pennsylvania 1999

State Medical Board of West Virginia 1995

State Medical Board of California 1994

MEMBERSHIPS IN PROFESSIONAL SOCIETIES

American Academy of Anti-Aging Medicine 2006

International Spinal Injections Society 2004

Ohio County Medical Society 2002

North American Spine Society 2002

Pennsylvania Neurosurgical Society 2000

Allegheny County Medical Society 2000

Pennsylvania Medical Society 2000

American Medical Association 1999

Congress of Neurological Surgeons 1995

American Association of Neurological Surgeons 1995

JOURNALS AND SUBSCRIPTIONS

Contemporary Neurosurgery

Comntemporary Spine Surgery

Operative Techniques in Neurosurgery

Journal of Spinal Disorders and Techniques

Science News

Neurosurgery

Journal of Neurosurgery

The Spine Journal

Spine

COMMITTEES

Chairman of OR Efficiency 2007 - Present

Credentialing Committee 2007 - Present

UPMC Passavant Hospital

Operating Room Block Time Sub-Committee 2007 - Present

UPMC Passavant Hospital

Operating Room Design Committee 2006 - Present

UPMC Passavant Hospital

Medical Executive Committee 2005 - Present

UPMC Passavant Hospital

Operating Room Committee 2005 - Present

UPMC Passavant Hospital

Operating Room Efficiency Sub-Committee 2005 - Present

UPMC Passavant Hospital

Member of PAM Committee 2002 - 2006

UPMC

PUBLICATIONS

PEER-REVIEWED JOURNAL ARTICLES

1. Turkin AM, El-Kadi H,MD,PhD, Kornienko VN, et al.: Magnetic resonance tomography

in the diagnosis of chronic intracranial hematomas. J Vop Neurochirugia

(Moscow) 3:6-10, 1988.

2. El-Kadi H, MD,PhD: Pathogenesis and treatment of chronic subdural hematomas. J Vop Neurochirugia (Moscow), 2:47-52, 1988.

3. El-Kadi H, MD,PhD, Likhterman LB, Kornienko VN: CT manifestations of chronic subdural hematomas. J Roentgen (Moscow) 3:80-86, 1990.

4. El-Kadi H, MD, PhD, Likhterman LB, Kornienko VN: CT diagnosis and dynamics in the treatment of chronic subdural hematoma in different age groups. J Neurol Psychiat (Moscow) 90:120-123, 1990.

5. Konovalov AN, El-Kadi H, MD,PhD, Likhterman LB: Differential treatment of chronic subdural hematoma. J Vop Neurochirugia (Moscow) 1:29:32, 1990.

6. Zlokovic BV, Banks WA, El-Kadi H,MD,PhD, Erchegyi, Mackie JB, McComb JG and Kastin A: Transport, uptake, metabolism of blood-borne vasopression by the blood-brain barrier. Brain Research 590:213, 1992.

7. Oppenheimer J, Levy M, El-Kadi H,MD,PhD,Appuzo MLJ: Radionecrosis secondary to radiobrachiotherapy: correlation of magnetic resonance and detailed histopathological autopsy findings. Neurosurgery 31:336-343, 1992.

8. Khosrovi H, Kauffman HH, Bloomfield SH, Prabhu V, El-Kadi H,MD,PhD,Laproscopic assisted distal ventriculoperiotneal shunt revision. Surgical Neurology 49:127-135, 1998.

9. Khosrovi H, Sadrolhefazi A, El-Kadi H,MD,PhD, Bloomfield S: Intradural convexity chondroma: A case report and review of diagnostic features. Scientific Newsfront, The West Virginia Medical Journal 96:612-616, Nov./Dec. 2000.

10. Koebbe, Christopher J.,MD, Maroon, Joseph C.,MD, Abla, Adnan, MD, El-Kadi H,MD,PhD and Bost, Jeffery, PAC. Lumbar microdiscetomy: a historical perspective and current technical considerations. Neurosurgery Focus, Volume 13/ August, 2002.

11. Hadjipanayis,Costas G.,MD, Abla, Adnan, MD,El-Kadi H,MD,PhD and Maroon, Joseph C.,MD. Pedicle Screw Fixation of the Lumbar Spine Involving the Sacrum. Contemporary Neurosurgery, Volume 25,Number 7/April 15, 2003.

12. Likhterman LB, Potapov AA, El-Kadi H, MD,PhD, “Classification of Chronic Subdural Hematoma” Russian Journal of Neurosurgery, Pages 35-37, April 2004.

13. Abla,Adnan,MD,El-Kadi H, MD,PhD, Bost,Jeff, PA-C, Maroon,Joseph C.,MD, MikeWert, B.S.,”Evaluation of Spondylolisthesis After Lumbar Laminectomy” Contemporary Neurosurgery, Volume 26,Number 24/ December 1, 2004.

14. Adnan A.Abla,M.D.El-Kadi, H,M.D,PhD, Jeff Bost, PAC, Joseph C. Maroon, M.D., Mike Wert,B.S. “Post-Laminectomy Spondylolisthesis: Surgical Techniques.” Contemporary Neurosurgery, Volume 26, Number 24/ December 1, 2004.

15. Abla, Adnan, MD, El-Kadi H, MD,PhD, Maroon, Joseph C., MD, Bost, Jeff, PA-C, Wert,Mike,B.S.,”Allograft Composite Cortical and Cancellous Bone Graft for Anterior Cervical Fusion.” Contemporary Neurosurgery, Volume 27,Number 8/April 30, 2005.

16. Adnan A.Abla,M.D.El-Kadi, H,M.D,PhD, Jeff Bost, PAC, Joseph C. Maroon, M.D. and Mike Wert,B.S., “Recurrent Lumbar Disc Herniation: Microsurgical Approach.” Contempory Neurosurgery, Volume 27, Number 15/ July 31, 2005.

17. Adnan A.Abla,M.D.El-Kadi, H,M.D,PhD, Jeff Bost, PAC, ., “Recurrent Lumbar Disc Herniation: Microsurgical Approach.” Contemporary Spine Surgery, Volume 6, Number 10/October 2005.

18. Adnan A.Abla,M.D.El-Kadi, H,M.D,PhD, Jeff Bost, PAC, Joseph C. Maroon, M.D., Mike Wert,B.S., and Abir Abla, B.S., “Degenerative Changes Above and Below Lumbar Fusion .” Contemporary Neurosurgery, Volume 27, Number 24/ December 1, 2005.

19. El-Kadi, H,M.D,PhD,, Adnan A.Abla,M.D.,Jeff Bost, PAC, Joseph C. Maroon, M.D., Mike Wert,B.S., and Abir Abla, B.S., “Complication and Avoidance Techniques in Long-Segment Anterior Cervical Fusion; Part I.” Contemporary Neurosurgery, Volume 28, Number 24/ January 30, 2006

20. El-Kadi, H,M.D,PhD., Adnan A.Abla,M.D., Jeff Bost, PAC, Joseph C. Maroon, M.D., Mike Wert,B.S., and Abir Abla, B.S., “Complication and Avoidance Techniques in Long-Segment Anterior Cervical Fusion; Part II.” Contemporary Neurosurgery, Volume 28, Number 3/ February 15, 2006

21. Maroon, Joseph, M.D., Paul Gardner, M.D., Adnan A. Abla, M.D., Hikmat El-Kadi,

M.D.Ph.D., Jeffrey Bost, PA-C., “Golfer’s stroke: Golf-Induced Stroke from Vertebral

Artery Dissection.” Surgical Neurology. March 31, 2006.

22. El-Kadi, H,M.D,PhD., Adnan A.Abla,M.D., Jeff Bost, PAC, Joseph C. Maroon, M.D., “Complication and Avoidance Techniques In Long –segment Anterior Cervical Fusion; Part I” Contemporary Spine Surgery, Volume 7 Number 12/ December 2006.

23. El-Kadi, H,M.D,PhD., Adnan A.Abla,M.D., Jeff Bost, PAC, Joseph C. Maroon, M.D., “Complication and Avoidance Techniques In Long –segment Anterior Cervical Fusion; Part II” Contemporary Spine Surgery, Volume 8 Number 1/ January 2007.

24. Joseph C. Maroon, M.D., Hikmat El-Kadi, M.D., Adnan A. Abla, M.D., Daniel A. Wecht, M.D., M.Sc., F.A.C.S., Jeffrey Boast, P.A.-C., John Norwig, A.T.C., Tim Bream, A.T.C., “Cervical Neurapraxia in Elite Athletes: Evaluation and Surgical Treatment..” J. Neurosug: Spine/Volume 6/April, 2007

25. Joseph C. Maroon, MD, Paul Gardner, Md, Adnan A. Abla, MD, Hikmat El-Kadi, MD, and Jeffrey Bost, PA-C, “Golfer’s stroke”: golf –induced stroke from vertebral artery dissection; ScienceDirect, Surgical Neurology 67 (2007) 163-168. Reprinted from SURGICAL NEUROLOGY Vol. 67, No. 2, February 2007

BOOK CHAPTERS

1. Dobrokhotiva TA, El-Kadi H,MD, PhD: Psychopathological features of head injury in elderly and senile patients. In: Konovalov A. (ed), Actual problems of Neurotraumatology, Academy of Medical Sciences (Moscow), 1988, pp. 99-111.

2. El-Kadi H,MD, PhD: Closed System drainage in the treatment of chronic subdural hematomas. In: Lichterman L (ed), Diagnosis and Tactical Mistakes in Neurotraumatology, Academy of Medical Sciences (Moscow), 1988, pp. 71-76.

3. El-Kadi H,MD, PhD: Comparative analysis of radical and sparse surgical treatment of chronic subdural hematoma. In: Konovalov A. (ed), Actual problems of Neurotraumatology, Academy of Medica Sciences (Moscow), 1988, pp. 153-159.

4. Lichterman L, Patapov A, El-Kadi H,MD,PhD: Clinical classification of sequalee of crainiocerebral trauma. In: Konovalov A. (ed), Classification of Craniocerebral Trauma, Autobank (Moscow),1992, pp.102-121.

5. El-Kadi H,MD,PhD, Kaufman HH: Hygroma In: Kaufman HH (ed), Cerebrospinal Fluid Collections,American Association of Neurological Surgeons (San Francisco), 1998, pp. 157-166.

6. Hogg JP, Peterson AM, El-Kadi H,MD, PhD: Imaging of cranial and spinal cerebrospinal fluid collections. In: Kaufman HH (ed), Cerebrospinal Fluid Collections, American Association of Neurological Surgeons (San Francisco), 1998, pp. 19-56.

7. El-Kadi H, MD, PhD: Prognosis of chronic subdural hematoma. In: Neurosurgery Clinics of North America. El-Kadi H, MD, PhD: Kaufman HH (eds.), W.B. Saunders Company, Philadelphia PA, July 2000. pp. 553-567.

8. Kravtchouk AD, Likhterman LB, Potapov AA, El-Kadi H, MD, PhD: Postoperative Complications of Chronic Subdural Hematomas: Prevention and Treatment, In: Neurosurgery Clinics of North America. El-Kadi H, Kaufman HH (eds.), W.B. Saunders Company, Philadelphia PA, July 2000. pp. 547-552.

9. El-Kadi H,MD, PhD, Kaufman Howard, Bellotte, J. Brad: Brain death. In: Youmans NeurologicalSurgery, Fifth Edition H Richard Winn, 2004, Chapter 17 pp. 393-406.

10. Konovalov AN., Potapov AA., El-Kadi H, MD, PhD: Chronic Subdural Hematomas: Surgery of Head Injury Sequelae. 2006, pp. 114-175

BOOKS

1. El-Kadi H,MD,PhD, Kaufman H: Chronic Subdural Hematoma. Neurosurgery Clinics of North America. W.B. Saunders Company., Philadelphia, PA., July 2000.

ABSTRACTS & POSTERS

1. Zlokovic BV, Banks WA, El-Kadi H,MD,PhD, et al.: Blood to brain transport and metabolism of circulating vasopression. (Abstract) Society of Neuroscience, 1991, pg. 140.

2. Levy ML, Rezai AR, Tang G, Apuzzo MLJ, El-Kadi H,MD,PhD: Multifactorian analysis of gang-related craniocerebral penetrating injuries in a metropolitan area. American Association of Neurological Surgeons, San Francisco, April 20, 1991.

3. Likhterman L, El-Kadi H,MD,PhD,Kravtchuk AD: The phase of clinic current of chronic subdural hematomas. (Abstract) In: Nakamura N, Thashimoto M, Yasue M (eds), Resent Advances in Neurotraumatology, Springer-Verlag, Tokyo, 1993, pg. 206.

4. Potapov A, Kravohuk, Likhterman L, and El-Kadi H,MD, PhD: Closed external drainage and evolution of chronic subdural hematomas. (Abstract) In: Nakamura N, Thashimoto M, Yasue M (ed), Recent Advances in Neurotraumatology, Springer-Verlag, Tokyo, 1993, pg. 110.

5. Likhterman L, El-Kadi H,MD,PhD: Chronic subdural hematoma. (Abstract) In: Likhterman L (ed), Neurotraumatology Reference Book, VASAR-Ferrco, Moscow, 1994, pp. 199-201.

6. Bloomfield SM, Cross R, El-Kadi H,MD,PhD: Intrathecal morphine infusion for chronic intractable benign pain. American Society for Stereotactic and Functional Neurosurgery, Los Angeles, March 9, 1995.

7. Bloomfield SM, El-Kadi H,MD,PhD, Haut M, Ortiz O, Ellis B: Stereotactic approaches to surgery on patients with occipital lobe brain tumor. American Society for Stereotactic and Functional Neurosurgery, Los Angeles, March 9, 1995.

8. El-Kadi H,MD,PhD, Bloomfield SH, Ortiz O, Haut M, Ellis G: Alexia in patients with occipital lobe tumors: functional anatomy and multi-disciplinary stratigies to optimize surgical outcome. Congress of Neurological Surgeons, San Francisco, October 18, 1995.

9. Burke JP, Abla AA, El-Kadi H, MD,PhD, Bost J, Abla A, Abla Ad: Update to pedicle screw fixation and allograft arthrodesis in the young and elderly populations. AANS/CNS Section on Disorders of the Spine and Peripheral Nerves Meeting, Challenges in the Spine Specialty Program Book, Phoenix, AZ, February 14-17, 2001.

10. Burke JP, Abla AA, El-Kadi H,MD,PhD, Bost J, Abla A, Abla Ad. Update on sublaminar hook fixation in cervical spinal trauma. AANS/CNS Section on Disorders of the Spine and Peripheral Nerves Meeting, Challenges in the Spine Specialty Program Book, Phoenix, AZ, February 14-17, 2001

11. Burke, James P.,MD,PhD,; Adnan A.Abla,MD; Joseph C. Maroon,MD; Robert Relic,PAC; Jeffrey Bost, PAC; El-Kadi H,MD,PhD; Adib Abla,; Abir Abla, April 2002 Chicago. Long- Segment Plating of the Anterior Cervical Spine: Radiographic and Clinical Outcome.

12. Burke, James P.,MD,Ph.D.,; Adnan A. Abla, MD; Jospeph C. Maroon,MD; Jeffrey Bost, PAC; Robert Relic, PAC; El-Kadi H,MD, PhD.; Adib Abla, ; Abir Abla, AANS April 2002 Chicago. Advances in Postoperative Management of Lumbosacral Pedicle Screw Fusion Patients.

13. Burke, James P., MD, PhD,; Adnan A. Abla, MD; Joseph C. Maroon, MD; Jeff Bost, PAC; Robert Relic, PAC; El-Kadi H, MD, PhD; Adib Abla,; Abir Abla, April 2002 Chicago. Salvage Pedicle Screws for Post-Laminectomy Spondylolisthesis and Failed Spinal Fusion.

14. Abla AA, El-Kadi,,H,MD, PhD, Incidence of Pedicle Screw Failure in the Lumbar Spine, ARGOS Inaugural Meeting, Nemacolin Woodlands, PA, August 2-4 2002.

15. El-Kadi, H,MD, PhD, Joseph C. Maroon, MD, Adnan A. Abla,MD, William Rothfus,MD, Jeff Bost PAC, Larry Marcello PAC, Robert Relic PAC, Dayna Painter, RN Ceryl Gojkovich RN and Amy Kunkle BS, (University of Pittsburgh) Prospective Evaluation of VG2 Interbody Fusion for Patients with Discogenic Back Pain. September 2002 CNS Congress Meeting.

16. El-Kadi,H, MD,PhD, Joseph C. Maroon, MD, Adnan Abla MD, Jeff Bost PAC,

Lawrence Marcello PAC, Robert Relic PAC, Dayna Painter RN, Cheryl Gojkovich RN.

Revisiting a Rigid Anterior Cervical Plate System with Fixed-angles Screws.

September 2002 CNS Congress Meeting.

17. Adnan Abla, M.D., Jeff Bost PAC, El-Kadi,H,MD,PhD,Joseph C. Maroon MD, Steve McHugh, Abir Abla, Evaluation of Lumbar Fusion Extension Surgery, Orlando, FL 2004 AANS Meeting, May 1-6, 2004.

18. Adnan Abla, MD., Jeff Bost PAC, El-Kadi, H, MD, PhD, Joseph C. Maroon, MD,

Steve McHugh, Abir Abla, Evaluation of Post-Lumbar Laminectomy Spondylolisthesis,

Orlando, FL 2004 AANS Meeting, May 1-6, 2004.

19. Adnan Abla, MD, Jeff Bost PAC, El-Kadi, H, MD,PhD, Joseph C. Maroon, MD,

Steve McHugh, Abir Abla, Outcome of Lumbar Spinal Fusion on the Elderly (75 year

And older) Orlando, FL 2004 AANS Meeting, May 1-6, 2004.

20. El-Kadi, H, MD, PhD, Adnan Abla, MD, Jeff Bost PAC, Joseph C. Maroon,MD, Divya Kaushik, Vishnu Murty, Brendan Mullen, Outcome of Long Segment Cervical Fusion with a Rigid Fixed-Angle Screw Plating System, Orlando, FL 2004 AANS Meeting, May 1-6, 2004.

21. El-Kadi H, MD, PhD, Adnan Abla, MD, Jeff Bost PAC, Joseph C. Maroon, MD, Divya Kaushik, Vishnu Murty, Brendan Mullen, Pedicle Screw Fixation for Mechanical LBP, Orlando, FL, 2004 AANS Meeting, May 1-6, 2004.

22. Adnan Abla, MD, El-Kadi, H, MD, PhD, Joseph C. Maroon,MD, Jeff Bost PAC, Lawrence Marcello, PAC, Mike Wert, BS, Anne Montgomery, RN, Jill Baughman, Lauren Strelec, Prospective Evauluation of Composite Cortical and Cancellous Bone Graft for Anterior Cervical Fusion, AANS Annual Meeting New Orleans, LA, April 16-21, 2005.

23. El-Kadi, H, M.D. PhD, Adnan Abla, M.D., Joseph C. Maroon, MD, Jeff Bost PAC, Lawrence Marcello, PAC, Michelle Kosovec, Brendan Mullen, Prognostic Factors in Elderly Patients with Long Segment Anterior Cervical Fusion, AANS Annual Meeting New Orleans, LA, April 16-21, 2005.

24. 24. El-Kadi, H,M.D. Ph.D., Adanan Abla, MD, Joseph C. Maroon, MD,Jeff Bost PAC, Lawrence Marcello PAC, Michelle Kosovec, Brendan Mullen, Evaluation of Pedicle Screw Fixation for Mechanical Post-Laminectomy Pain Syndrome, AANS Annual Meeting New Orleans, LA, April 16-21, 2005

25. 25. El-Kadi, H, M.D. Ph.D., Adnan Abla, MD, Joseph C. Maroon, MD, Jeff Bost PAC, Lawrence Marcello, PAC, Michelle Kosovec, Brendan Mullen, Complications in Long Segment Anterior Cervical Fusion, Experience in 100 Patients, AANS Annual Meeting New Orleans, LA, April 16-21, 2005.

26. 26. Abla, Adnan, M.D., El-Kadi, H, M.D. Ph.D., Joseph C. Maroon, MD, Jeff Bost PAC, Lawrence Marcello PAC, Mike Wert BS, Anne Montgomery RN, Jill Baughman, Lauren Strelec, Operative Techniques to Reduce Instrumentation failure with Pedicle Screw Fusion, AANS Annual Meeting New Orleans, LA, April 16-21, 2005.

27. 27. Abla, Adnan, M.D., El-Kadi, H, M.D.Ph.D., Joseph C. Maroon, MD, Jeff Bost PAC, Lawrence Marcello PAC, Mike Wert, BS, Anne Montgomery RN, Jill Baughman, Lauren Strelec, Surgical Techniques Minimizing Blood Loss in Posterior Pedicle Screw Lumbar Spine Fixation, AANS Annual Meeting New Orleans, LA, April 16-21, 2005.

28. 28. Abla, Adnan, M.D., El-Kadi, H, M.D.Ph.D., Joseph C. Maroon, MD, Jeff Bost PAC, Lawrence Marcello PAC, Mike Wert, BS, Anne Montgomery RN, Jill Baughman, Lauren Strelec, Evaluation of ENT-Assisted Anterior Cervical Approach for Spinal Fusion, AANS Annual Meeting New Orleans, LA, April 16-21, 2005.

29. 29. El-Kadi, H, M.D.Ph.D., Abla, Adnan, M.D., Joseph C. Maroon, MD, Jeff Bost PAC, Lawrence Marcello PAC: “Evaluatoin of Obesity and other Comorbid Conditions on Spine Surgery Outcomes.”American Association of Neurological Surgeons Annual Meeting, San Francisco, CA, April 22-26 2006.

30. 30. Abla, Adnan, M.D., El-Kadi, H, M.D.Ph.D., Joseph C. Maroon, MD, Jeff Bost PAC, Lawrence Marcello PAC: “Surgical Technique and Outcome for Post-lumbar Laminectomy Spondylolisthesis Fusion.” American Association of Neurological Surgeons Annual Meeting, San Francisco, CA, April 22-26 2006.

31. Abla, Adnan, M.D., El-Kadi, H, M.D.Ph.D., Joseph C. Maroon, MD, Jeff Bost PAC, Lawrence Marcello PAC: “Recurrent Lumbar Disc Herniation: Microsurgical Approach and Outcome.” American Association of Neurological Surgeons Annual Meeting, San Francisco, CA, April 22-26 2006.

32. 32. El-Kadi, H, M.D. Ph.D., Jerry Salandro, BS, Jeffrey Bost, PA-C, Adnan Abla, MD; Joseph C. Maroon, MD: “New Technology for Surgical Digital Recording and Power Video Presentation.” Congress of Neurological Surgeon Annual Meeting, Chicago, IL, October 7-12, 2006.

33. 33. Abla, Adnan M.D., El-Kadi, H, M.D. Ph.D., Jeffrey Bost, PA-C, Joseph C. Maroon, MD, Mike Wert BS: “ Spinal Epidural Morphine Delivery Using Absorbable Gelatin Powder.” Congress of Neurological Surgeon Annual Meeting, Chicago, IL, October 7-12, 2006.

PRESENTATIONS

1. Bloomfield SM, Cross R, El-Kadi H,MD,PhD: Intrathecal morphine infusion for chronic intractable benign pain. American Society for Stereotactic and Functional Neurosurgery, Los Angeles, March 9, 1995.

2. Bloomfield SM, Cross R, El-Kadi H,MD,PhD: Stereotatic brain biopsy performed in the CT scanner: experience with 100 cases and advantages compared to stereotactic biopsies in the OR or free-hand CT-guided biopsy. Congress of Neurological Surgeons. San Francisco, October 18, 1995.

3. El-Kadi H,MD,PhD: Decision Making in Spinal Surgery, Invited Lunch Time Learning, Wheeling Hospital, September 2001.

4. El-Kadi H,MD,PhD: New Advances in Spinal Surgery, Lecture at Passavant Hospital CME Program, December 3, 2002.

5. El-Kadi H,MD,PhD: Lumbar Degenerative Disc Disease and Discogenic Low Back Pain, Lecture at Presbyterian Hospital, Attending Conference February 19, 2003.

6. El-Kadi H,MD,Phd, Jeff Bost : Craniotomy: Post-op Care, ICU Nurses, UPMC Passavant,Pittsburgh, PA.May 2003.

7. El-Kadi H,MD,PhD, Abla AA: Minimizing Blood Loss in Posterior Pedicle Screw Lumbar Spine Fixation Conference: “The Role of Disc Replacement in the Degenerative Lumbar Spine”, ARGOS, Nemacolin, PA Aug 1-2, 2003.

8. El-Kadi H,MD,PhD, Abla AA: Pedicle Screw Fixation for Mechanical LBP, Conference: “The Role of Disc Replacement in the Degenerative Lumbar Spine”, ARGOS, Nemacolin, PA Aug 1-2, 2003.\

9. El-Kadi H, MD,PhD, Jeff Bost: Cervical Spine Disease, ICU Nurses, UPMC Passavant, Pittsburgh, PA September 2003.

10. El-Kadi H,MD,PhD, Jeff Bost PAC, Stephanie Gauder: Long Segment Anterior Cervical Fusion: Complication and Cost Reduction Strategies. Lecture at Presbyterian Hospital, Attending Conference November 12, 2003.

11. El-Kadi H,MD,PhD, Jeff Bost PAC: Advances in Spinal Surgery: Artificial Discs, Healthcare Advancements Conference, UPMC Passavant Hospital, March 3, 2004

12. El-Kadi, H,MD,PhD: Anterior Long Segment Fusion, Fourth Annual G Robert Nugent Lectureship, Department of Neurosurgery, West Virginia University, Visiting Professor June 12, 2004.

13. El-Kadi, H,MD,PhD: Long Segment Anterior Cervical Fusion, Complication and Avoidance, The 3^rd World Association of Lebanese Neurosurgeons (WALN) Homecoming Congress: Into the Third Millenium, June 27-30, 2004 Movenpick Hotel and Resort, Beirut- Lebanon.

14. 14. El-Kadi,H,MD,PhD:Spinal Tumors: Diagnosis and Treatment, November 17, 2004, Steris Auditorium, Erie.

15. El-Kadi, H,MD,PhD: Spinal Tumors: Treatment Strategy November 17, 2004, Lecture at Presbyterian Hospital, Attending Conference.

16. El-Kadi, H, MD, PhD: Treatment Strategies of Primary Spine and Spinal Tumors, Fifth Annual G. Robert Nugent Lectureship, Department of Neurosurgery, West Virginia University, Visiting Professor, May 7, 2005.

17. 17. Abla AA, El Kadi M, MD, PhD, Maroon JC, Bost JW, Marcello L. “Recurrent Lumbar Disc Herniation: Microsurgical Approach and Outcome.” American Association of Neurological Surgeons Annual Meeting, San Francisco, CA, April 22-26, 2006.

18. 18. El Kadi M, MD, PhD, Abla AA, Maroon JC, Bost JW, Marcello L. “Evaluation of Obesity and other Co-morbid Conditions on Spine Surgery Outcomes.” American Association of Neurological Surgeons Annual Meeting, San Francisco, CA, April 22-26, 2006.

19. 19. Abla AA, El-Kadi MMD, PhD, Maroon JC, Bost JW, Marcello L. “Surgical Technique and Outcome for Post Lumbar Laminectomy Spondylolisthesis Fusion.” American Association of Neurological Surgeons Annual Meeting, San Francisco, CA, April 22-26, 2006.

20. 20. El-Kadi, H, MD, PhD, Jeff Bost PAC, Keith Lorenz: “Spine and Spinal Cord Tumors: Treatment Strategies.” Congress of Russian Neurosurgical Association, Moscow, Russia, June 22, 2006.

21. 21. Treatment Strategies for Primary Spine and Spinal Cord Lesion, Matt El-Kadi, MD, Jeff Bost, Russian Federation of Neurosurgeons Annual Meeting, Moscow, Russia, June 23, 2006.

22. 22. Spinal Epidural Morphine Delivery Using Absorbable Gelatin Powder, Adnan Abla, MD; Matt El-Kadi, MD; Jeffrey Bost, PA-C; Joseph C. Maroon, MD; Mike Wert, BS, CNS Annual Meeting, Chicago September 2006

23. 23. El-Kadi H, MD, PhD, “New Technology for Surgical Digital Recording and Power Video Presentation.” Congress of Neurological Surgeons Annual Meeting, Chicago, IL, October 7-12, 2006.

RESEARCH GRANTS

1. Early prediction of severity of closed head injury in football accidents using neuropsychological testing, MRI and PET scanning. National Operating Committee on Standards for Athletic Equipment (NOCSAE) 1996.

2. Clinical Investigation of the Safety & Efficacy of Pulse Electromagnetic Fields (Cervical-Stim ™ as An Adjunct to Cervical Spinal Fusion to enhance Fusion Success. Investigators: Daniel Wecht MD (PI), Joseph Maroon MD, Adnan Abla MD, El-Kadi, H,MD,PhD, Ghassan Bejjani MD, Neuroscience Research Foundation, Sponsor, 5/99 to 2004.

3. Comparison of Experience and Clinical Outcomes following Treatment of Degenerative Disc Disease using Synthes Spine, Co., Small Stature Varible –Angled CSLP PI- El-Kadi H, M.D., Ph.D. 2000-2003.

4. Comparison of Experience and Clinical Outcomes following Treatment of Degenerative Disc Disease using Synthes Spine, Co., Small Stature CSLP PI- El-Kadi H, M.D., Ph.D., Adnan A. Abla, M.D. 8/00 to present.

5. A study with VG2 Interbody Fusion for Patients with Discogenic Back Pain PI- El-Kadi H,M.D.,Ph.D. 4/01 to 1/05.

6. A study with VG2 Interbody Fusion and Pedicle Screw Fusion for Patients with Discogenic Back Pain PI- El-Kadi H, M.D., Ph.D. 6/01 to 1/05.

7. “A Study to Evaluate Clinical Outcomes using BG2 Allograft for Cervial Fusion wihtht e PEAK Anterior Cervical Plate System” PRINCIPAL INVESTIGATOR: Adnan A. Abla, Sub-PI El-Kadi H, MD, PhD. 2002

8. “Randomized, Third-Party Blinded, Multicenter, Clinical Trial to Determine the Safety and Effectiveness of Oxiplex/ SP Gel for the Reduction of Pain and Symptoms Following Lumbar Disc Surgery [Protocol FZ-SP002]” PRINCIPAL INVESTIGATOR: Joseph C. Maroon MD, Sub-PI, Adnan A. Abla, El-Kadi H, MD, Ph.D. 2003.

Disclaimer:

Every effort has been made by the author (s) to provide accurate, up-to-date information. However, the medical knowledge base is dynamic and errors can occur. By using the information contained herein, the viewer willingly assumes all risks in connection with such use. Neither the author nor UPMC shall be held responsible for errors, omissions in information herein nor liable for any special, consequential, or exemplary damages resulting, in whole or in part, from any viewer(s)' use of or reliance upon, this material.

Clinical information is provided for educational purposes and not as a medical or professional service. Person(s) who are not medical professionals should have clinical information reviewed and inter1preted or applied only by the appropriate health professional(s).