Orthopedics Commons^™

Posterior Longitudinal Ligament Status In Cervical Spine Bilateral Facet Dislocations, John A. Carrino, Geoffrey L. Manton, William B. Morrison, Alex R. Vaccaro, Mark E. Schweitzer, Adam E. Flanders

Department of Orthopaedic Surgery Faculty Papers

Objective: It is generally accepted that cervical spine bilateral facet dislocation results in complete disruption of the posterior longitudinal ligament. The goal of this study was to evaluate the integrity of numerous spine-stabilizing structures by MRI, and to determine if any associations between injury patterns exist with respect to the posterior longitudinal ligament status.

Design: Retrospective case series.

Patients: A retrospective review was performed of 30 cervical spine injury subjects with bilateral facet dislocation. Assessment of 1.5T MRI images was carried out for: intervertebral disc disruption, facet fracture, and ligamentous disruption. Statistical analyses were performed to evaluate for associations between …

Total Knee Arthroplasty Using Computer-Assisted Navigation In Patients With Deformities Of The Femur And Tibia: A Report Of 5 Cases, Gregg R. Klein Md, Matthew S. Austin Md, Eric B. Smith Md, William J. Hozack Md

Department of Orthopaedic Surgery Faculty Papers

Anatomic aberrations of the femur and tibia secondary to trauma, congenital defects, and prior surgery present challenges for the reconstructive knee surgeon because of an altered mechanical axis and distorted anatomic landmarks. Five patients with arthritis of the knee and extra-articular femoral and/or tibial deformity, retained hardware, or intramedullary (IM) implants underwent total knee arthroplasty using a computer navigation system. The navigation system obviated the need for an IM guide, and the normal mechanical axis of the patients was restored. Extensive dissection for hardware removal or osteotomy was not necessary in these patients. In these 5 cases, a navigation system …