Prevalence and pattern of lateral impingements in the progressive collapsing foot deformity
- 02.07.2021
- Orthopaedic Surgery
Erschienen in:
- Verfasst von
- Matthieu Lalevée
- Nacime Salomao Barbachan Mansur
- Edward O. Rojas
- Hee Young Lee
- Samuel J. Ahrenholz
- Kevin N. Dibbern
- François Lintz
- Cesar de Cesar Netto
- Erschienen in
- Archives of Orthopaedic and Trauma Surgery | Ausgabe 1/2023
Abstract
Introduction
The prevalence of lateral bony impingements [i.e., Sinus Tarsi (STI), Talo-Fibular (TFI) and Calcaneo-Fibular (CFI)] and their association with Peritalar Subluxation (PTS) have not been clearly established for progressive collapsing foot deformity (PCFD).This study aims to assess the prevalence of STI, TFI and CFI in PCFD, in addition to their association with PTS. We hypothesized that STI and TFI would be more prevalent than CFI.
Materials and methods
Seventy-two continuous symptomatic PCFD cases were retrospectively reviewed. Weightbearing computed tomography (WBCT) was used to assess lateral impingements and classified as STI, TFI and CFI. PTS was assessed by the percent of uncovered and the incongruence angle of the middle facet, and the overall foot deformity was determined by the foot and ankle offset (FAO). Data were collected by two fellowship-trained independent observers.
Results
Intra-observer and inter-observer reliabilities for impingement assessment ranged from substantial to almost perfect. STI was present in 84.7%, TFI in 65.2% and CFI in 19.4%. PCFD with STI showed increased middle facet uncoverage (p = 0.0001) and FAO (p = 0.0008) compared to PCFD without STI. There were no differences in FAO and middle facet uncoverage in PCFD with TFI and without TFI. PCFD with CFI was associated with STI in 100% of cases. PCFD with CFI showed decreased middle facet incongruence (p = 0.04) and higher FAO (p = 0.006) compared to PCFD without CFI.
Conclusions
STI and TFI were more prevalent than CFI in PCFD. However, only STI was associated with PTS. Conversely, CFI was associated with less PTS, suggesting a different pathological mechanism which could be a compensatory subtalar behavior caused by deep layer failure of the deltoid ligament and talar tilt.
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- Titel
- Prevalence and pattern of lateral impingements in the progressive collapsing foot deformity
- Verfasst von
-
Matthieu Lalevée
Nacime Salomao Barbachan Mansur
Edward O. Rojas
Hee Young Lee
Samuel J. Ahrenholz
Kevin N. Dibbern
François Lintz
Cesar de Cesar Netto
- Publikationsdatum
- 02.07.2021
- Verlag
- Springer Berlin Heidelberg
- Erschienen in
-
Archives of Orthopaedic and Trauma Surgery / Ausgabe 1/2023
Print ISSN: 0936-8051
Elektronische ISSN: 1434-3916 - DOI
- https://doi.org/10.1007/s00402-021-04015-7
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