Abstract
BACKGROUND: The aim of this study was to examine the biomechanical gait effects and range of motion following a proximal hemiarthroplasty with a HemiCap�.
METHODS: Forty-one HemiCAP-operated participants with a mean follow-up time of 5 years had plantar force variables (PFVs) examined and compared with their non-operated foot and a control group. PFVs were compared to the MTPJ1 range of motion (ROM), and pain measured by Visual Analog Scale (VAS).
RESULTS: The HemiCAP participants' operated feet had higher PFVs laterally on the foot and lower PFVs under the hallux. Dorsal ROM of the operated feet was a median 45� (range 10-75) by goniometer and 41.5 (range 16-80) by X-ray. An increase in ROM decreased the forces under the hallux. Most participants were pain-free. No correlation between pain and PFVs was found.
CONCLUSIONS: Increased dorsiflexion decreased the maximum force under the hallux. A mid-term HemiCAP maintains some motion. The decreased PFVs under the hallux may reflect a patient reluctance to load the first ray, although no correlation between plantar forces and pain was found.
Originalsprog | Engelsk |
---|---|
Sider (fra-til) | 432-438 |
Antal sider | 7 |
Tidsskrift | Foot and Ankle Surgery |
Vol/bind | 26 |
Udgave nummer | 4 |
Tidlig onlinedato | 2019 |
DOI | |
Status | Udgivet - 1 jun. 2020 |