Journal article
Prevalence and pattern of lateral impingements in the progressive collapsing foot deformity
Archives of orthopaedic and trauma surgery, Vol.143(1), pp.161-168
2023
DOI: 10.1007/s00402-021-04015-7
PMID: 34213577
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.
Keywords: AAFD; Flatfoot; Impingement; PCFD; Peritalar subluxation; Progressive collapsing foot deformity.
Details
- Title: Subtitle
- Prevalence and pattern of lateral impingements in the progressive collapsing foot deformity
- Creators
- Matthieu LalevéeNacime Salomao Barbachan Mansur - University of Iowa, Orthopedics and RehabilitationEdward O RojasHee Young LeeSamuel J Ahrenholz - University of Iowa, Orthopedics and RehabilitationKevin N Dibbern - University of Iowa, Orthopedics and RehabilitationFrançois LintzCesar de Cesar Netto - University of Iowa, Orthopedics and Rehabilitation
- Resource Type
- Journal article
- Publication Details
- Archives of orthopaedic and trauma surgery, Vol.143(1), pp.161-168
- DOI
- 10.1007/s00402-021-04015-7
- PMID
- 34213577
- ISSN
- 0936-8051
- eISSN
- 1434-3916
- Language
- English
- Electronic publication date
- 07/02/2021
- Date published
- 2023
- Academic Unit
- Orthopedics and Rehabilitation
- Record Identifier
- 9984131898602771
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