The AES total ankle replacement: A mid-term analysis of 93 cases.
BACKGROUND
There are few studies concerning specific total ankle arthroplasties. This study reports mid-term survival data for the AES prosthesis.


METHODS
Ninety-three AES ankle arthroplasties were performed by the senior authors. The mean follow-up was 3.5 years. The 5-year survivorship and also the number of simultaneous procedures, reoperations, additional procedures and revisions are analyzed.


RESULTS
The 5-year survivorship with revision for any reason as end-point was 90%. Simultaneous procedures were performed in 25 patients, deltoid release and subtalar fusion being the most common. There were seven revisions, one due to loosening, and two due to infection, instability and fractures, respectively. Twenty-seven reoperations or additional procedures were performed in 23 patients with a procedure for malleolar impingement being the most common reoperation, and correction of hindfoot varus being the most common reason for an additional procedure.


CONCLUSIONS
The AES total ankle replacement seems to be a reasonably safe procedure in experienced hands.
Henricson
Anders
A
Department of Orthopaedic Surgery, Falu General Hospital, 791 82 Falun, Sweden. anders.henricson@ltdalarna.se
Knutson
Kaj
K
Lindahl
Johan
J
Rydholm
Urban
U
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000843:Ankle Joint / Q000601:surgery*; D019643:Arthroplasty, Replacement / Q000009:adverse effects / Q000295:instrumentation*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007592:Joint Diseases / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010014:Osteolysis / Q000209:etiology / Q000601:surgery; D011474:Prosthesis Design; D012086:Reoperation; D012189:Retrospective Studies; D013997:Time Factors; D016896:Treatment Outcome; D055815:Young Adult