A retrospective clinical and telephonic survey of AMIS patients. Minimally Invasive Anterior Hip Replacements have been performed according to the AMIS technique in two centres in South Africa on a regular basis since 2 February 2007. We report on the first 335 cases that were done from February 2007 till October 2009 in these two centers, by two surgeons. The data reported from these patients was collected from clinical notes, hospital records and telephonic questionnaires. Of the 335 cases that were performed data could be collected from 283 patients. Patients lost to follow up were 16 deceased, 24 could not be reached and 12 others had co-morbidities like Alzheimers, Total deafness and CVA.Purpose of study:
Description of methods:
182 AMIS Total Hip Replacements were analysed for implant placement using the IMATRI system to evaluate the accuracy of the minimal invasive technique. These hips were done in two different periods to assess if the measurement and analyses of the implant placement improved over time. 182 Consecutive AMIS Total Hip Replacements were performed during two different periods. Postoperative X-rays were done on all cases in the recovery room and the images were all uploaded to the IMATRI system. Leg length discrepancy, acetabular cup inclinations and anteversion were measured using predetermined morphing systems. Data were then analysed to define accuracy of implant placement. Outliers were also analysed to explain possible reasons.Purpose
Methods
