Artikel
Assessing the efficacy of ankle orthotic brace in correcting progressive collapsing foot deformity with weight-bearing computed tomography: A case control study
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Autoren
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Riccardo Sacco
- Centre Hospitalier Universitaire de Roeun, Rouen, France
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Matthieu Lalevée
- Centre Hospitalier Universitaire de Roeun, Rouen, France
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Cesar de Cesar Netto
- Department of Orthopedics, Duke University, Durham, United States
| Veröffentlicht: | 21. Oktober 2024 |
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Gliederung
Text
Objectives: To assess the efficacy of a prefabricated inflatable ankle orthotic brace (IAOB) to improve the three-dimensional foot alignment of patients with Progressive Collapsing Foot Deformity (PCFD) using weight-bearing computed tomography (WBCT).
Methods: We enrolled a consecutive series of symptomatic PCFD patients and a matched control group. Each foot underwent two WBCT scans with and without an IAOB. Three-dimensional foot alignment was assessed using the foot and ankle offset (FAO), and dedicated measurements allowed the assessment of PCFD classes.
Results and conclusion: Both PCFD and control groups included 24 feet. The FAO in the unbraced (6.6±3.7) and braced (5.5±4.2) PCFD group was not significantly improved (p=0.101). After bracing, only class C PCFD showed significant improvement of the forefoot arch angle (p=0.001) and talus-first metatarsal angle (p=0.002). The other PCFD classes were not improved by the brace.
In our study, the IAOB did not correct the overall 3D alignment in PCFD, but significantly improved forefoot varus deformity and medial longitudinal arch collapse. These findings suggest that the efficacy of IAOBs may be limited to specific classes of PCFD.
