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- Title
Talar component subsidence correlates with periprosthetic osteolysis after total ankle arthroplasty.
- Authors
Kihara, Shinsuke; Kanzaki, Noriyuki; Yamashita, Takahiro; Yamamoto, Tetsuya; Nishida, Kyohei; Nagai, Kanto; Araki, Daisuke; Hoshino, Yuichi; Matsushita, Takehiko; Kuroda, Ryosuke
- Abstract
Purpose: This study aimed to investigate the relationship between periprosthetic osteolysis around the talar component and the amount of talar component subsidence after total ankle arthroplasty (TAA). Methods: This study included forty patients who underwent TAA with a mean follow-up of 67.5 ± 17.0 months. The patients were divided into two groups based on the amount of osteolysis around the talar component, as measured by computed tomography at the latest clinic visit: none to 2 mm (N group, n = 20) and greater than or equal to 2 mm (O group, n = 20). The average amount of talar component subsidence, clinical outcomes, and complications were compared between the two groups. In the O group, the correlation between osteolysis and talar component subsidence was evaluated. Results: The average talar component subsidence was significantly different between the N (0.22 ± 0.94 mm) and O groups (2.12 ± 2.28 mm). Five out of 20 ankles in the O group required revision surgery owing to talar component subsidence. The Japanese Society for Surgery of the Foot scores in the N and O groups were significantly different: 93.5 ± 7.7 and 85.3 ± 15.4, respectively. In the O group, we found that osteolysis tended to develop on the lateral side, and the amount of osteolysis was positively correlated with the talar component subsidence (r = 0.59, P =.007). Conclusion: In the O group, a positive correlation between osteolysis and talar component subsidence was found, and five patients required revision surgery.
- Subjects
RESEARCH; BONE resorption; ANKLE joint; SURGICAL complications; ARTIFICIAL joints; TREATMENT effectiveness; COMPARATIVE studies; REOPERATION; RESEARCH funding; COMPUTED tomography; STATISTICAL correlation; TOTAL ankle replacement; PERIPROSTHETIC fractures
- Publication
European Journal of Orthopaedic Surgery & Traumatology, 2023, Vol 33, Issue 7, p2987
- ISSN
1633-8065
- Publication type
Article
- DOI
10.1007/s00590-023-03519-9