Hindfoot alignment using weight-bearing computed tomography

oleh: Eduardo Pires, Carlos Lôbo, Cesar de Cesar Netto, Alexandre Godoy-Santos

Format: Article
Diterbitkan: Associação Brasileira de Medicina e Cirurgia do Tornozelo e Pé - ABTPé 2020-12-01

Deskripsi

Measurement of hindfoot malalignment and flexibility is essential for treatment decision-making in cavovarus foot deformity. Weight-bearing computed tomography (WBCT) shows greater diagnostic accuracy and allows the study of osteoarticular alignment in the physiological upright position. The most commonly used method for measurements on WBCT scans is the foot and ankle offset (FAO), which is based on the structural tripod of the foot: the calcaneus and the first and fifth metatarsal heads. During the Coleman block test, the first metatarsal head is not resting on the ground and, therefore, does not represent the physiological support of the tripod. We describe a new measurement, the forefoot/hindfoot offset (FHO), for assessing hindfoot alignment on WBCT scans. Level of Evidence V; Diagnostic Studies; Expert Opinion.