Mehdi N, Lintz F, Alsafi M, Laborde J, Bernasconi A. Revision tibiotalar arthrodesis with posterior iliac autograft after failed arthroplasty: A matched comparative study with primary ankle arthrodeses.
Orthop Traumatol Surg Res 2022;
108:103269. [PMID:
35288327 DOI:
10.1016/j.otsr.2022.103269]
[Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 08/31/2021] [Accepted: 09/06/2021] [Indexed: 02/03/2023]
Abstract
INTRODUCTION
Tibiotalar arthrodeses performed after failed ankle arthroplasties are known to be complex procedures with often disappointing functional outcomes. This study reports the results of a revision technique using a posterior iliac crest autograft.
HYPOTHESES
We hypothesized that: (1) revision tibiotalar arthrodeses (RTTAs) had functional outcomes which were similar to those of a reference cohort of primary tibiotalar arthrodeses (TTAs) and that (2) the union rate was satisfactory.
MATERIALS AND METHODS
This retrospective study compared 16 RTTAs performed for failed arthroplasties that caused pain and a functional disability (4 aseptic loosening, 4 massive progressive periprosthetic cysts, 5 malpositioning of implants, and 3 cases of unexplained mechanical pain) with a series of 16 primary TTAs performed for painful ankle osteoarthritis. The groups were matched at a 1:1 ratio for age, sex, side and body mass index. The preoperative workup included a physical exam, the American Orthopaedic Foot and Ankle Society (AOFAS) score, weight bearing radiographs, CT and SPECT scans. Outcomes were assessed both clinically (AOFAS score) and radiographically (X-rays and scans). The mean duration of the procedure (DP), average length of stay (LOS), fusion and complication rates, and time to union were also compared.
RESULTS
At the mean follow-up of 30 months (range, 12-88) for the RTTA group and 59 months (range, 23-94) for the TTA group (p=.001), the AOFAS score increased from 27 to 70.8 points (p<.001) and from 29.8 to 76.2 points (p<.001), respectively; values were similar at the last follow-up (p=.442). Both groups had similar fusion (94%) and complication rates (12%). The DP was 196.9±33.6min (range, 179-213) vs. 130±28.4min (range, 118-141) (p<.001) and the LOS was 3.8 days (range, 2-6) vs. 3.9 days (range, 2-6) (p<.445) for both groups (RTTA vs. TTA).
CONCLUSION
This RTTA technique using a posterior iliac crest allograft for filling bone defects was validated by the quality of the functional outcomes obtained.
LEVEL OF EVIDENCE
IV; Comparative retrospective study.
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