Biomechanical evaluation of foot function after distraction subtalar arthrodesis: a prospective study
- Authors: Orletsky A.K.1, Kosov I.S.1, Shkuro K.V.1, Arapova I.A.1, Vasilyev D.O.1, Zeynalov V.T.1, Mursalov A.K.1, Mitskevich V.A.1
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Affiliations:
- Priorov National Medical Research Center of Traumatology and Orthopedics
- Issue: Vol 32, No 2 (2025)
- Pages: 397-411
- Section: Original study articles
- URL: https://ogarev-online.ru/0869-8678/article/view/314747
- DOI: https://doi.org/10.17816/vto633337
- EDN: https://elibrary.ru/WZMMQJ
- ID: 314747
Cite item
Abstract
BACKGROUND: Conservative or inadequate surgical treatment of intra-articular, depressed calcaneal fractures with fragment displacement may result in significant orthopedic complications. Subtalar arthrodesis is indicated after calcaneal fractures with progressive osteoarthritis. Distraction subtalar arthrodesis is recommended in cases of severe depression of the posterior articular facet to restore hindfoot alignment.
AIM: The work aimed to improve the surgical management strategy for post-traumatic calcaneal deformities.
METHODS: Between 2021 and 2024, 27 patients with severe post-traumatic calcaneal deformities underwent surgery at the Department of Traumatology and Orthopedics No. 4, N.N. Priorov National Medical Research Center of Traumatology and Orthopedics, Moscow, Russia. The cohort included 7 women and 20 men, with a mean age of 35 years (22–56 years). All procedures were performed by the same surgeon. The mean time from injury to surgery was 24.8 months (9–72 months).
RESULTS: Treatment outcomes in patients included in the study were assessed 12 and 24 months after surgery. The mean follow-up period was 26.2 months (12–56 months). The mean preoperative visual analog scale (VAS) score was 5.1 (2–9), which decreased to 0.8 (0–3) postoperatively, indicating a significant reduction in pain (p > 0.001). The mean AOFAS hindfoot score was 42 preoperatively (39–72) and 85 postoperatively (60–92), with an improvement in questionnaire scores (p > 0.001). Complications were reported in 13 patients; two patients required revision surgery. Dynamic pedobarography showed an increase in peak and mean pressure integrals across the foot. The mean heel contact time decreased significantly from 640 ± 166 ms preoperatively to 515 ± 141 ms postoperatively (p < 0.003). These values were comparable to those of the contralateral healthy foot: 530 ± 177 ms, respectively.
CONCLUSION: Distraction subtalar arthrodesis was performed in patients with severe post-traumatic calcaneal deformity (talus inclination angle <8°). Distraction was essential to restore the height of the calcaneus and normal anatomical relationships of the hindfoot as a whole. Patients were satisfied with the outcomes, which were confirmed not only clinically and radiographically, but also biomechanically via dynamic pedobarographic assessment.
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##article.viewOnOriginalSite##About the authors
Anatoly K. Orletsky
Priorov National Medical Research Center of Traumatology and Orthopedics
Email: nova495@mail.ru
MD, Dr. Sci. (Medicine), Professor
Russian Federation, 10 Priorova st, Moscow, 127299Igor S. Kosov
Priorov National Medical Research Center of Traumatology and Orthopedics
Email: kozeti@mail.ru
ORCID iD: 0009-0008-7053-7213
SPIN-code: 3260-8950
MD, Dr. Sci. (Medicine)
Russian Federation, 10 Priorova st, Moscow, 127299Konstantin V. Shkuro
Priorov National Medical Research Center of Traumatology and Orthopedics
Author for correspondence.
Email: shkuro_kostya@mail.ru
ORCID iD: 0009-0004-8259-7994
SPIN-code: 3442-1306
MD
Russian Federation, 10 Priorova st, Moscow, 127299Irina A. Arapova
Priorov National Medical Research Center of Traumatology and Orthopedics
Email: ryb4sirina@yandex.ru
ORCID iD: 0009-0005-7216-3065
MD
Russian Federation, 10 Priorova st, Moscow, 127299Dmitry O. Vasilyev
Priorov National Medical Research Center of Traumatology and Orthopedics
Email: A-tendo@mail.ru
ORCID iD: 0000-0002-6573-3243
MD, Cand. Sci. (Medicine)
Russian Federation, 10 Priorova st, Moscow, 127299Vadim T. Zeynalov
Priorov National Medical Research Center of Traumatology and Orthopedics
Email: zeinalov_vadim@mail.ru
ORCID iD: 0000-0002-4815-3685
SPIN-code: 2703-9129
MD, Cand. Sci. (Medicine)
Russian Federation, 10 Priorova st, Moscow, 127299Anatoly K. Mursalov
Priorov National Medical Research Center of Traumatology and Orthopedics
Email: tamerlanmursalov@gmail.com
ORCID iD: 0000-0002-3829-5524
SPIN-code: 9035-8198
MD, Cand. Sci. (Medicine)
Russian Federation, 10 Priorova st, Moscow, 127299Viktor A. Mitskevich
Priorov National Medical Research Center of Traumatology and Orthopedics
Email: mitvictor@mail.ru
ORCID iD: 0009-0008-8392-8571
MD, Dr. Sci. (Medicine), Professor
Russian Federation, 10 Priorova st, Moscow, 127299References
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