Talonavicular coalition. Objective gait analysis.
Talonavicular coalitions, a rarely reported fusion between the talus and navicular, are often an incidental radiographic finding that may be asymptomatic or associated with peroneal spasm. The authors present a review of literature and case report based on clinical evaluation and instrumented gait analysis. Specifically, a patient presenting with a bilateral talonavicular coalition was objectively evaluated with kinetic, kinematic, muscle dynamometry, and pedobarographic testing to understand the biomechanical limitations related to this pathology. An excessive passive component of ankle torque, a high first metatarsophangeal joint plantar pressure, and a diminished time in the midstance portion of stance phase were measured and compared to those of healthy individuals.
Pontious
J
J
Department of Podiatric Surgery, Pennsylvania College of Podiatric Medicine, Philadelphia.
Hillstrom
H J
HJ
Monahan
T
T
Connelly
S
S
D000293:Adolescent; D001696:Biomechanical Phenomena; D005532:Foot Deformities, Congenital / Q000000981:diagnostic imaging / Q000503:physiopathology*; D005684:Gait / Q000502:physiology*; D006801:Humans; D008297:Male; D011859:Radiography; D016059:Range of Motion, Articular / Q000502:physiology; D013580:Synostosis / Q000000981:diagnostic imaging / Q000503:physiopathology*; D013628:Talus / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000503:physiopathology; D013639:Tarsal Bones / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000503:physiopathology; D016474:Weight-Bearing / Q000502:physiology