Department of Orthopaedics, Worthing Hospital, University Hospitals Sussex NHS Trust, United Kingdom.
Georgian Med News. 2024 Mar(348):91-93.
The restoration of the joint line is important for a good functional outcome after a Total Knee Arthroplasty(TKA). Knee joint biomechanics need to be restored as near normal as possible. Joint line elevation leads to anterior knee pain, decrease in range of motion, patella baja ,mid-flexion instability and impingement of patellar tendon. Joint line depression on the other hand leads to patella alta, risk of patellar subluxation and mid-flexion instability of the knee. Various studies have demonstrated various range of acceptable joint line variation but there is no clear acceptable range of joint line variation. More studies are required for establishing the acceptable range of joint line variation and standard practices should be established for arthroplasty surgeons for preventing variation of joint line.
在全膝关节置换术（TKA）后，恢复关节线对于获得良好的功能结果很重要。需要尽可能接近正常地恢复膝关节生物力学。关节线抬高会导致前膝疼痛、活动范围减小、髌骨低位、中屈不稳定和髌腱撞击。另一方面，关节线降低会导致髌骨高位、髌骨半脱位风险和膝关节中屈不稳定。多项研究已经证明了关节线可接受的变化范围，但目前还没有明确的关节线可接受的变化范围。需要进一步研究来确定关节线变化的可接受范围，并为关节置换术医生制定标准的实践准则，以防止关节线的变化。
