Radiological evaluation of total ankle replacement / 中国矫形外科杂志

ABSTRACT

[Objective]To study the evaluation method for total ankle replacement.[Method]According to anterior-posterior and lateral Xray films of ankle joint pre-and postoperatively,the level of osteotomy and method of bone grafting were confirmed and the correct position of total ankle replacement and its complication were evaluated.Forty-six cases of total ankle replacement were followed up 2~8 years and 4 months with average 5 years and 5 months.With author's radiographic evaluation method and Ko-foed's system,results of ankle function were evaluated.[Result]The foot dorsiflexion was 6?~16? and plantoflexion 8?~28?,movement range of foot dorsiflexion and plantoflexion was 14?~38?(average 21.4?).The function results showed excellent(85~100) in 32 ankles,good(75~84) in 9,and poor(60~74) in 2,no failure case.The complication included necrosis of incision border skin of 3 ankles and intraoperative fractures of both melleola of one ankle;no foot inversion and eversion,no radiographic loosenning were seen.[Conclusion]Radiological evaluation is a critical and useful measure to enhance the quality and function of total ankle replacement,to prevent and to early find its complications.