Objectives: In this study we aimed to investigate the type and incidence of foot deformities in rheumatoid
arthritis (RA) patients. We also investigated the relationship between these deformities and functional activity and
disease activity in these patients.
Material and Methods: The patient group included 30 patients with RA and the control group included 30 healthy
subjects. In each group anterior and lateral weigth bearing foot radiographs were obtained. The radiographs were
evaluated for pes planus, pes cavus and hallux valgus by measuring specific angles (talometatarsal angle, hallux
valgus angle). Metetarsophalangeal (MTP) subluxation, hammer toe, claw toe were also evaluated.
Results: The frequency of pes planus, hallux valgus, MTP subluxation, hammer toe, claw toe were 60%, 50%,
30%, 20%, 16%, and 6.7%, respectively. All these deformities were significantly higher in the patient group
excluding, pes cavus (p
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