Total ankle replacement: the results of 100 mobility total ankle replacements.
We describe the early results of a prospective study of 100 total ankle replacements (96 patients) at a single centre using the Mobility Total Ankle Replacement. At final review, six patients had died and five ankles (5%) had been revised, two by fusion and three by exchange of components. All remaining patients were reviewed at a minimum of three years. The mean follow-up was 43 months (4 to 63). The three-year survival was 97% (95% confidence interval (CI) 91 to 99). The four-year survival was 93.6% (95% CI 84.7 to 97.4). The portion of bony interface that was visible on plain radiograph was divided into 15 zones and a radiolucent line or osteolytic cavity was seen in one zone in 14 ankles. It was not seen in more than one zone. In five ankles it was > 10 mm in width. This study suggests that the early outcome of ankle replacement is comparable to that of other total joint replacements.
Wood
P L R
PL
Department of Orthopaedic Surgery, Wrightington Hospital, Hall Lane, Wigan, Lancashire WN6 9EP, UK. plrwood@yahoo.com
Karski
M T
MT
Watmough
P
P
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000843:Ankle Joint / Q000601:surgery*; D001172:Arthritis, Rheumatoid / Q000601:surgery; D019643:Arthroplasty, Replacement / Q000009:adverse effects / Q000379:methods*; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D007595:Joint Prosthesis; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000601:surgery; D011475:Prosthesis Failure; D012086:Reoperation; D016896:Treatment Outcome