Patella infera following patellar tendon contracture after closed trauma

Patella infera is a rare condition caused by pathological shortening of the patellar tendon. The term ＂patella infera＂ was coined by Caton et al＇ in 1982 and the condition can severely affect knee function. Patella infera has been reported as a complication of non-operative treatment for patellar fracture;^2 anterior cruciate ligament reconstruction;

进展性下位髌骨综合征

目的 :报道临床所见的进展性下位髌骨综合征 ,探讨其病因、诊断 ,并介绍一种新的治疗方法。方法 :本组病人共 11例 ,均由膝关节手术或创伤引起。以膝关节僵硬和髌骨高度降低为主要特征。髌骨垂直高度系数 (Linclau法 )平均较对侧减少 5 0 .4% ,Lysholm膝关节功能评分平均 47.5分。采用健侧中 1/3骨—髌腱—骨移植延长髌腱。结果 :髌骨高度恢复正常 ,膝关节伸屈功能及Lysholm评分较术前显著改善。结论 :膝关节手术及创伤是引起该综合征的直接原因 ,髌骨垂直高度系数较对侧显著减少是诊断该病的主要依据。以中 1/3骨—髌腱—骨移植延长髌腱 ,可准确恢复髌骨原来高度 。