Midterm Results of HemiCAP Operation in the Surgical Treatment of ha/lux Rigidus

Abstract

Aim: Hallux rigidus is a disease characterised by pain and reduced range of motion due to osteoarthritis of the first metatarsophalengeal joint. Although there are many differents surgical and conservative methods, no standard treatment protocol is described. In this study, we investigated the results of HemiCap surface arthroplasty of the first metatarsophalengeal joint in a patient who suffered from pain and reduced range of motion. Material and Method: 19 of 29 patients that we treated with HemiCap implant beetween October 2008-March 2013 are included to the study. 20 limbs of 19 patients are radiologically and clinically evaluated. Patients are assessed with American Orthopaedic Foot and Ankle Society (AOFAS) and Visual Analog Scale (VAS) in their last call. Results: 10 of 19 patients were male, 9 of 19 patients were female. Mean age was 57.4 years (min 32, max 72 years) and mean follow up period was 27.2 months (min 5, max 57 months). Preoperative mean AOFAS score was 38 while it was 76 in the last call (p<0.01). Preoperative VAS score was 8.9 while it was 3.8 in the last call (p<0.01). Preoperative mean ROM was 18 degrees while it was 48 degrees in the last call. Discussion: HemiCap arthroplasty results are succesful at patients in which optimised range of motion is obtained during the surgery.