Klinische Forschung zu Fuß und Sprunggelenk

Abstrakt

The HINTEGRA ® Ankle Arthroplasty: Intermediate Term Results of 16 consecutive Ankles and a Review on the Current Literature

Willegger M, Trnka H.J, and Schuh R

Purpose: Total ankle arthroplasty provides an alternative to arthrodesis for management of ankle osteoarthritis. The results of the third generation total ankle replacements have been promising. The purpose of the present study was to investigate the clinical and radiographical outcome and implant survival of 16 consecutive patients suffering from symptomatic ankle osteoarthritis treated with the HINTEGRA® (Newdeal SA, Lyon, France) prosthesis.

Methods: The first 16 implanted HINTEGRA® total ankle replacements (between 2001 and 2006) by a fellowship-trained foot and ankle surgeon were assessed clinically and radiographically after a mean of 61,8 months (range, 7–116). Eight female and eight male patients were operated at a mean age of 55 years (range, 34–77). Diagnosis was post-traumatic osteoarthritis in 10 (62,5%), primary osteoarthritis in 3 (18,7%) and arthritis secondary to infection in 3 (18,7%) patients.

Results: The mean AOFAS score at final follow-up was 77 (range, 49–91). Mean ankle ROM as determined clinically and fluoroscopically was 23,72 degrees (range, 12,0–47,5). Six patients required revisional surgery (37,5%). The mean follow up period until revisional surgery occured was 50,6 months (range, 24–116). In total, implant survival in all followed ankles was 66,7%.

Discussion: Our study demonstrated that the functional results of the HINTEGRA® ankle were comparable to most high volume centres but the implant survival was lower. With regards to the steep learning curve of total ankle arthroplasty these results seem compatible.