mtoA 76-year-old woman prented with bilateral knee pain, left wor than right. Pre-operative radiographs of the left knee show vere, end-stage osteoarthritis. The radiographic hallmarks of osteoarthritis are: joint space narrowing, sclerosis of the subchondral bone, osteophyte formation and eventually cystic changes in the adjacent bone
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Standing "alignment views" are ud to determine the patient's weight bearing and mechanical axis. The technical goals of Total Knee Arthroplasty include re-establishing the patients mechanical axis and restoring the joint line. Often times, patients will have developed vere "varus" deformity (bowed legs) or less commonly, "valgus deformity (knock kneed). 杰森 科林斯
brisbane
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After a sterile prep, the limb is draped, landmarks are identified and the mid-line knee incision is planned unless patients have old scars which are not compatible with this standard incision
The leg is exsanguinated and a tourniquet is ud to maintain hemostasis throughout the ca. af官网地址
放松银根
Once the incision is made, the quadriceps tendon, the patella and the patellar tendon are identified. A medial para-patellar arthrotomy is made and the soft tissues are elevated from the tibia. Great care must be taken not to strip to much medially or laterally as this may result in disruption of the medial collateral ligament or the patellar tendon, respectfully. Both are disastrous complications.
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