■伸肌装置的断裂是一种严重的并发症,可以在假肢膝关节中发生。双外伸肌断裂在成人中很少见,甚至更罕见。
方法:我们报告一例肥胖,糖尿病,和高血压患者,两周前接受了全膝关节置换术,并因释放缝线而从高处跌落,髌腱断裂而入院。一项调查显示,髌腱从髌骨和胫骨插入双焦点撕脱。该患者接受了双重系带治疗,并在the骨和胫骨水平进行了钢丝环扎。
■有几个因素导致肌腱脆性:与年龄有关的退行性变化,一般或当地条件,和TKA的手术方法。这些异常也会影响肌腱的愈合能力,并应表明不使用成形术进行肌腱增强的简单修复的不足,自体移植,或者同种异体移植.
结论:TKA(全膝关节置换术)中伸肌腱断裂患者的预后尚不清楚,在我们的案例中,假体插入和事件发生之间的延迟以及病变的开放性加剧了这种情况.
UNASSIGNED: Rupture of the extensor apparatus is a serious complication that can occur in a prosthetic knee. Bifocal extensor ruptures are rare and even more uncommon in adults.
METHODS: We report the
case of an obese, diabetic, and hypertensive patient who underwent total knee arthroplasty two weeks previously and was admitted following a fall from her height for a rupture of the patellar tendon with release of the sutures. An investigation revealed bifocal avulsion of the patellar tendon from its patellar and tibial insertion. The patient was treated with double lacing and anchoring at the patellar and tibial levels with wire cerclage.
UNASSIGNED: Several factors contribute to tendon fragility: degenerative changes linked to age, general or local conditions, and surgical approaches for TKA. These abnormalities also affect the tendon\'s ability to heal and should suggest the inadequacy of simple repair without tendon augmentation using a plasty, an autograft, or an allograft.
CONCLUSIONS: The prognosis for patients with extensor tendon ruptures in the TKA (total knee arthroplasty) remains unclear, and in our
case, this was exacerbated by the delay between prosthesis insertion and the incident and by the open nature of the lesion.