Orthopaedic Surgeon
29 years of experience

Accepting new patients
South Jersey Hand Center
1888 Marlton Pike E
Cherry Hill, NJ 08003
Locations and availability (3)

Education ?

Medical School Score Rankings
University of Pennsylvania (1981)
  • Currently 4 of 4 apples
Top 25%

Awards & Distinctions ?

American Society for Surgery of the Hand

Affiliations ?

Dr. Bednar is affiliated with 8 hospitals.

Hospital Affilations



  • Southern Ocean County Hospital
    Orthopaedic Surgery
    1140 Route 72 W, Manahawkin, NJ 08050
    • Currently 4 of 4 crosses
    Top 25%
  • Thomas Jefferson University Hospital
    Orthopaedic Surgery
    111 S 11th St, Philadelphia, PA 19107
    • Currently 3 of 4 crosses
    Top 50%
  • Our Lady Of Lourdes Medical Center
    Orthopaedic Surgery
    1600 Haddon Ave, Camden, NJ 08103
    • Currently 2 of 4 crosses
  • Lourdes Medical Center of Burlington County
    Orthopaedic Surgery
    218A Sunset Rd, Willingboro, NJ 08046
    • Currently 1 of 4 crosses
  • Sugery Center Of Cherry Hill
  • Wills Eye Hospital
    840 Walnut St, Philadelphia, PA 19107
  • Wills Eye Hospital
  • Atlantic Care Surgery Center
  • Publications & Research

    Dr. Bednar has contributed to 13 publications.
    Title Internal Derangement of the Wrist: Indirect Mr Arthrography Versus Unenhanced Mr Imaging.
    Date June 2003
    Journal Radiology

    PURPOSE: To compare indirect magnetic resonance (MR) arthrography with unenhanced MR imaging of the wrist for evaluation of the central disk of the triangular fibrocartilage complex (TFCC) and the scapholunate and lunotriquetral interosseous ligaments. MATERIALS AND METHODS: Eighty-six wrists were evaluated at MR imaging (41 indirect MR arthrography and 45 unenhanced MR imaging examinations). Three musculoskeletal radiologists independently evaluated the central disk of the TFCC and scapholunate and lunotriquetral ligaments and compared the results with those of wrist arthroscopy. Sensitivity and specificity were calculated for each of the readers, and the means were obtained. Sensitivities and specificities were compared with the Student t test. RESULTS: Thirty-three tears of the central disk of the TFCC and 13 scapholunate and 18 lunotriquetral ligament tears were identified at arthroscopy. Sensitivities and specificities were 54%-73% and 83%-91%, respectively, in the evaluation of the central disk of the TFCC, with no significant difference between indirect MR arthrography (P =.666) and unenhanced MR imaging (P =.559). Sensitivities and specificities in the evaluation of the scapholunate ligament were 38%-69% and 75%-99%, respectively, with a significant improvement in sensitivity at indirect MR arthrography (P =.017) and no significant difference in specificity (P =.876). Sensitivities in the evaluation of the lunotriquetral ligament were poor, 0%-22%, though the specificities were 88%-99%, with no significant difference between indirect MR arthrography and unenhanced MR imaging (P =.592 and P =.354, respectively, for sensitivity and specificity. CONCLUSION: Indirect MR arthrography significantly improves sensitivity in the evaluation of the scapholunate ligament when compared with unenhanced MR imaging of the wrist but does not significantly improve the ability to evaluate the central disk of the TFCC or the lunotriquetral ligament.

    Title Limitations of Mr Imaging in the Diagnosis of Peripheral Tears of the Triangular Fibrocartilage of the Wrist.
    Date February 2002
    Journal Ajr. American Journal of Roentgenology

    OBJECTIVE: The treatment of peripheral tears of the triangular fibrocartilage complex is radically different from the more typical central, degenerative tears. To our knowledge, no reports in the imaging literature specifically evaluate tears of the ulnar attachment of the triangular fibrocartilage complex. We evaluated the accuracy of MR imaging in these patients. MATERIALS AND METHODS: Eighty-six MR imaging examinations of the wrist (41 indirect MR arthrograms and 45 unenhanced MR images) were evaluated: 20 wrists with surgically confirmed peripheral triangular fibrocartilage complex tears and 66 wrists with surgically documented normal ulnar attachment. These cases were evaluated by three experienced musculoskeletal radiologists, who were unaware of the surgical findings, to assess the presence of peripheral triangular fibrocartilage complex tears or fluid signal at the ulnar attachment of the triangular fibrocartilage complex. RESULTS: The sensitivity for evaluation of the peripheral triangular fibrocartilage complex tear was 17%, with a specificity of 79% and an accuracy of 64%. High signal intensity at the ulnar insertion of the triangular fibrocartilage complex as a marker for tear showed a sensitivity of 42%, a specificity of 63%, and an accuracy of 55%. Weighted kappa values revealed only fair agreement among the three observers. CONCLUSION: MR imaging does not adequately reveal the peripheral attachment of the triangular fibrocartilage complex.

    Title Arthroscopic Treatment of Triangular Fibrocartilage Tears.
    Date November 1999
    Journal Hand Clinics

    The triangular fibrocartilage complex is an intricate anatomic structure located at the ulnar aspect of the wrist. The triangular fibrocartilage is important to the stability and biomedical function of the ulnar carpus and distal radioulnar joint. This article reviews the anatomy and biomedical function of the triangular fibrocartilage. Diagnosis and treatment of traumatic injuries to the triangular fibrocartilage are also discussed.

    Title Workers Compensation. Effect of State Law on Treatment Cost and Work Status.
    Date July 1998
    Journal Clinical Orthopaedics and Related Research

    Workers compensation legislation is regulated at a state level resulting in different benefits based on the state of employment. The negative effect of workers compensation on the results of surgical treatment has been established previously. A comparison of the results of treatment of patients receiving workers compensation from different states has not been reported. This study prospectively evaluated the effect of the difference in state workers compensation laws on the number of postoperative visits, amount of postoperative therapy, time off from work, and return to work status. The study group consisted of 275 patients. The results indicated a significant increase in the number of postoperative visits, amount of therapy, time off from work, and number of patients who remained out of work in the compensation versus the noncompensation group. A significant increase in these parameters also was present in the Pennsylvania compensation group as compared with the New Jersey compensation group. This study shows that differences in workers compensation benefits have a significant effect on the results of medical treatment, return to work status, and the cost of medical care.

    Title Arthroscopic Repairs of Triangular Fibrocartilage Complex Tears.
    Date August 1997
    Journal Aorn Journal

    Technical advancements in arthroscopic wrist procedures have improved our knowledge of normal and abnormal intraarticular wrist function. Triangular fibrocartilage complex (TFCC) tears from trauma injuries are a common source of ulnar-sided wrist pain. Fortunately, the TFCC is a structure that can be evaluated and treated arthroscopically with results that are comparable to open surgical procedures. Successful arthroscopic repairs of TFCC tears depend on a coordinated team effort between perioperative nurses, orthopedic surgeons, nurse practitioners, and occupational hand therapists, as well as cooperation from patients and family members. This article reviews the anatomy and physiology of the TFCC, the biomechanics of the wrist and mechanisms of injury, and arthroscopic repairs of TFCC tears.

    Title X-rays and Imaging Studies--a Baseline Review for the Therapist.
    Date April 1995
    Journal Journal of Hand Therapy : Official Journal of the American Society of Hand Therapists
    Title The Role of Arthroscopy in the Treatment of Traumatic Triangular Fibrocartilage Injuries.
    Date March 1995
    Journal Hand Clinics

    The triangular fibrocartilage complex is a complex anatomic structure located at the ulnar aspect of the wrist and is important to the stability and biomechanical function of the ulnar carpus and distal radioulnar joint. This article will review the anatomy and biomechanical function of the TFCC and its relationship to the diagnosis and treatment of traumatic injuries to the TFCC.

    Title Equipment Malfunction in Common Hand Surgical Procedures. Complications Associated with the Pneumatic Tourniquet and with the Application of Casts and Splints.
    Date June 1994
    Journal Hand Clinics

    Pneumatic tourniquets and plaster of Paris splints and casts are the hallmarks of hand surgery, firmly entrenched as an adjunct in the routine treatment of upper extremity disorders. Because they are usually employed with a comparative degree of safety and because they are relatively simple devices from a technologic perspective. Little is written about them in the scientific literature. In this paper we extensively review their historical developments, physiologic effects, and common complications, and we attempt to provide a rationale for their safe and effective use.

    Title Dynamic Computerized Tomography of the Occiput-atlas-axis Complex in Trauma Patients with Odontoid Lateral Mass Asymmetry.
    Date January 1991
    Journal The Journal of Trauma

    Over a 23-month period, 25 patients aged 11 to 74 years presented to our Level I trauma center with odontoid lateral mass asymmetry of 2 to 5 mm on properly centered AP open-mouth X-rays: 32% of patients were asymptomatic, 68% had cervical pain, and 32% had limited range of motion. Patients with cervical spine fractures or dislocations and those with fixed deformity were excluded. The clinical significance of asymmetry was determined utilizing dynamic axial CT scanning of the occiput (C0), atlas (C1) and axis (C2) with the head neutral and with 15 degrees to 30 degrees active rotation. Nineteen patients demonstrated greater than 5 degrees of relative motion of C1 on C2 bilaterally. Three patients had less than 5 degrees of relative motion bilaterally and three patients had less than 5 degrees relative motion with left rotation only. No patient had formal treatment and all had nearly normal cervical range of motion on clinical examination at the time of hospital discharge. The finding of an asymmetric odontoid-lateral mass interspace on properly centered open-mouth AP X-rays in the presence of otherwise normal cervical spine X-rays, in conscious patients without fixed deformity, appears to be incidental and requires no further evaluation or treatment.

    Title Bipolar Femoral Endoprosthesis: a Study Correlating Component Movement with Clinical Outcome.
    Date June 1988
    Journal The Journal of Trauma

    Fifty-five bipolar femoral hemiarthroplasties performed between January 1979 and February 1986 were reviewed to correlate component movement with clinical outcome. Fourteen of these patients were examined clinically using the Harris Hip Score and radiographically by the method of Drinker and Murray to determine the per cent of total motion in abduction present at the inner bearing surface. The average followup was 19.7 months. The data demonstrate that the clinical result is related to inner bearing motion. The inner bearing motion is significantly decreased by weight bearing and may be influenced by the size of the femoral component.

    Title Prosthetic Nerve Grafts: a Resorbable Tube As an Alternative to Autogenous Nerve Grafting.
    Date November 1987
    Journal The Journal of Hand Surgery

    The use of a prosthetic nerve graft, composed of a resorbable polyorthoester tube, as an alternative to free autogenous nerve grafting for the treatment of a gap in a peripheral nerve was studied, with a cat sciatic nerve as the model. The results demonstrate that regeneration will occur through a resorbable tube spanning a 1.5 cm gap and reinnervate end organ muscle. In those muscles showing evidence of reinnervation, nerve regeneration through the tubes as assayed by electrophysiologic examination demonstrated no difference compared with autogenous nerve grafts, with the exception that the initial rate of regeneration was delayed by 4 to 6 weeks.

    Title Peripheral Nerve Grafts: the Relationship of Axonal Growth Cone and Biomechanical Properties.
    Date May 1986
    Journal The Journal of Hand Surgery

    Cat sciatic nerves containing 2 and 4 cm nerve grafts were subjected to tensile testing with the finding that a significant decrease in force at failure occurs at the distal suture line at a time after surgery that is graft length dependent. Tritiated labeling of regenerating axons and qualitative electromyography demonstrated that this effect was unrelated to the leading edge of the axonal growth cone, but temporally related to the functional reinnervation of denervated muscle.

    Title Carpal Instability: Evaluation and Treatment.
    Journal The Journal of the American Academy of Orthopaedic Surgeons

    Carpal instability is a common cause of wrist pain, motion loss, and disability. Diagnosis and treatment of carpal instability are dependent on a clear understanding of wrist anatomy and carpal kinematics, both normal and pathologic, as well as their relation to the current concepts regarding management. A brief review of anatomy and normal kinematics is presented, followed by a detailed discussion of specific instability patterns, including pathomechanics. A treatment algorithm is provided, detailing the authors' preferred treatment for the most common instability patterns.

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