Gait Analysis and Functional Outcome After Calcaneal Fracture

BACKGROUND:Calcaneal fractures are associated with substantial morbidity and socioeconomic impact, frequently leading to limited functional outcome and high economic costs. The Oxford foot model (OFM) has been reported as a valid addition to the biomechanical examination of the foot. The aim of our...

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Bibliographic Details
Published in:	Journal of bone and joint surgery. American volume 2015-11, Vol.97 (22), p.1879-1888
Main Authors:	van Hoeve, Sander, de Vos, Jim, Verbruggen, Jan P.A.M, Willems, Paul, Meijer, Kenneth, Poeze, Martijn
Format:	Article
Language:	eng
Subjects:	Adult Aged Aged, 80 and over Calcaneus - diagnostic imaging Calcaneus - injuries Case-Control Studies Female Follow-Up Studies Fracture Fixation, Internal Gait Humans Intra-Articular Fractures - diagnostic imaging Intra-Articular Fractures - physiopathology Intra-Articular Fractures - surgery Male Middle Aged Prospective Studies Radiography Range of Motion, Articular Recovery of Function Scientific Subtalar Joint - injuries Subtalar Joint - physiopathology Subtalar Joint - surgery Surveys and Questionnaires Treatment Outcome
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Summary:	BACKGROUND:Calcaneal fractures are associated with substantial morbidity and socioeconomic impact, frequently leading to limited functional outcome and high economic costs. The Oxford foot model (OFM) has been reported as a valid addition to the biomechanical examination of the foot. The aim of our study was to analyze the gait of patients after operative repair of a calcaneal fracture in relation to functional outcome and radiographic findings. METHODS:Thirteen patients with a calcaneal fracture underwent gait analysis with OFM at a minimum of six months after open surgery. Intersegmental range of motion was measured during gait. Results were compared with those of healthy subjects and those of patients who had undergone subtalar arthrodesis. Patient-reported questionnaires and radiographic images were also evaluated. RESULTS:The range of motion between the hindfoot and the tibia in the push-off phase in the transverse plane was significantly correlated with the clinical outcome as reported by patients based on the Foot and Ankle Disability Index (FADI) (r = 0.51; p < 0.001) and the Short Form (SF)-36 physical component summary score (r = 0.52; p < 0.001). We found a significant correlation between the step-off in the subtalar joint as measured on postoperative computed tomography (CT) and range of motion (r = −0.74; p = 0.004). The step-off was also correlated with the patient-reported outcome questionnaire FADI (r = −0.76; p = 0.003) and the SF-36 physical component summary score (r = −0.78; p = 0.002). CONCLUSIONS:This study demonstrated that the subtalar joint range of motion of patients after a calcaneal fracture was related both to the quality of the reduction of the subtalar joint as evaluated on postoperative CT scans and patient-reported functional outcome. LEVEL OF EVIDENCE:Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
ISSN:	0021-9355 1535-1386