Which Are the Most Frequently Used Outcome Instruments in Studies on Total Ankle Arthroplasty?

Abstract

The number of studies reporting on outcomes after total ankle arthroplasty is continuously increasing. As

Patient-reported outcome measures in hallux valgus surgery. A review of literature

“…Research focussing on evidence of outcome instruments is an ongoing process, implicating the actuality of our review may already be expired. In literature there is lack of uniformity in the use of quality criteria on systematically evaluation of outcome measurements [13][14][15][16][17][54][55][56][57][58]. The criteria we applied can be debated and no clear instructions exist how to apply these criteria [14,16].…”

The Salto Total Ankle Arthroplasty: Survivorship and Analysis of Failures at 7 to 11 years

“…The importance of the learning curve has been underscored by the Swedish registry, reporting a survival rate of 70% at 5 years for the first 30 implantations and 86% for ensuing patients [18]. Second, the functional results were assessed using only the AOFAS ankle-hindfoot score, which provides a limited analysis of function [34]. Third, the analysis of cysts was not performed systematically with CT scans, 4 Two years after implantation, the same cysts were still present in the same patient shown in Fig.…”

“…A failure was defined as ''any reoperation on the ankle'' after implantation (revisions and reoperations) or as ''removal or revision of any component, including exchange of polyethylene insert for fracture'' (revisions) [17]. This last criterion is used frequently [9,11,23,25,27,34,39,51]. Radiologic measurements and scores were compared using Student's t test after checking the normal distribution of the samples with the Shapiro-Wilk test and the equality of variances with the F-test.…”

Total Ankle Replacement

“…45 (51) 684 (722) 47 (50) 49 (50) 245 (257) 80 (83) 111 (123) 61 (62) 45 (52) 126 (132) 43 (50) 396 (404) 80 (84) 82 (82) 95 (100) 229 (229) 106 (106) 233 (240) 639 (639) 593 (593) 100 (100) 501 (517) 515 (515) 303 (306) 103 (103) 65 (68) 390 (406) 66 (66) 226 (233) 96 (100) 90 (99) 6218 (6389) Etiology of ankle osteoarthritis, % (absolute values) Primary 25.5% (13) 9.5% (69) 6.0% (3) 16.0% (8) 20.6% (53) 33.7% (28) 52.8% (65) 19.4% (12) 50.0% (26) 46.2% (61) 54.0% (27) 16.6% (67) 25.0% (21) 34.2% (28) 26.0% (26) 13.8% (32) 52.8% …”