Rupture Of The Patellar Tendon

Patella Tendon Rupture Tka

Rupture of the patellar tendon after total knee replacement is a rare and typically devastating problem Fig. 13.1 . Unfortunately, the results of several methods of acute repair are almost uniformly Numerous theories have been postulated to explain the etiology of late rupture of the patellar tendon following TKA. As mentioned previously, improper surgical technique that malaligns the knee or the position of any single component can play a contributory role. Some authors have found its...

Instrumentation in Total Knee Arthroplasty

Femoral Sulcus Anatomy

In the early 1970s the total condylar knee arthroplasty was designed at the Hospital for Special Surgery and emphasized the concepts of ligament balance and knee alignment.1 After the introduction of polymethylmethacrylate, there was a rapid increase in design work because the major obstacle of fixation was relieved. Although the knee implant designs continued to undergo refinement, instrumentation lagged significantly behind the design technology. This dichotomy occurred because the emphasis...

Medial Release for Fixed Varus Deformity

Pictures The Proximal Mcl

Scuderi, and John N. Insall Varus deformity of the knee is one of the most common deformities seen at the time of total knee arthroplasty. When a fixed deformity is present, the pathoanatomy usually involves erosion of medial tibial bone stock with medial tibial osteophyte formation, and contractures of the medial collateral ligament MCL , pos-teromedial capsule, pes anserinus, and semimembranosus muscle Fig. 3.1 . Elongation of the lateral collateral ligament is a...