– Discussion: – in total knee replacement patients, patellectomy will decrease peak torque generated by the quadriceps by 20-40 %. – in revising a TKR with a deficient patellar component, there is controversy as to whether a PCL retaining or posterior stabilized prosthesis should be used; – w/ first generation posterior stabilized components, it was … Read more
Methods to Prevent Infection: – prophylactic antibiotics – skin prep agents – Considerations: – patient is placed in supine position, hip bump is optional; – tourniquet: – in the study by Wakankar HM, et al (1999) the authors prospectively studied the effect of tourniquet … Read more
– Discussion: – the patella should evert with minimal tension on the patella tendon; – methods to facilitate patellar eversion: – patellar resurfacing: – patellar resurfacing can be performed early in the exposure inorder to thin the patella … Read more
– See: TKR: Soft Tissue Balance and Collateral Ligaments – Discussion: – fixed varus is the most common angular contracture in pts undergoing tkr; – this deformity may be accentuated by the presence of medial tibial plateau or medial femoral condyle osteophytes; – it is essential that … Read more
– See: – Total Knee Replacement: – High Tibial Osteotomy: – TKR following HTO: – expected problems following an HTO may include: – patellar infera – peripatellar scarring (and inability to evert the patella); … Read more
– See: Rheumatoid Arthritis Long-term results of total condylar knee arthroplasty in rheumatoid arthritis. Total knee arthroplasty in rheumatoid arthritis. A comparison of the polycentric and total condylar prostheses. Total condylar knee replacement in patients who have rheumatoid arthritis. A ten-year follow-up study. Use of a total condylar knee prosthesis for treatment of osteoarthritis and … Read more
– Discussion: – may result from unequal flexion and extension gaps; (instability in extension or flexion due to MCL or LCL incompetence); – varus subluxation in extension or flexion due to unequal gaps; – in the report by Fehring TK, et al, the authors evaluated the causes of revision … Read more
– See: – TKR Menu – blood supply to the knee: – standard lateral retinacular release: – Discussion: – at completion of TKR, patellar tracking are critically evaluated to insure stability; – patellar tracking may be improved by removal of patellar osteophytes … Read more
– Discussion: – need to reflect capsule medially & laterally from upper 1 cm of proximal tibia; – performed circumferentially using either elevator or osteotome; – this capsular reflection relieves minor contractures and provides access for retractors to protect the posterior structures; – any rim osteophytes from the … Read more
– See: – THR osteolysis – TKR Menu: Osteolysis after total knee arthroplasty without cement. Osteolysis After TKA: Influence of Tibial Baseplate Surface Finish and Sterilization of Polyethylene Insert Findings at 5-10 years Postoperatively. Complications After Total Knee Arthroplasty: How to Manage Patients with Osteolysis