A Randomised Multi-centre Study to Compare the Short-term Outcomes of Minimally Invasive and Conventional Surgery in Primary Total Hip Replacement

Inclusion Criteria: i) Male or female subjects, aged between 18 and 75 years inclusive. ii) Subjects who are able to give voluntary, written informed consent to participate in this investigation and from whom consent has been obtained. iii) Subjects who in the opinion of the Investigator, are able to understand this investigation, co-operate with the investigational procedures and are willing to return to the hospital for all the required post-operative follow-ups. iv) Subjects with a primary diagnosis of osteoarthritis. v) Subjects considered suitable for a primary total hip arthroplasty and are considered suitable for a minimally invasive surgical procedure. Exclusion Criteria: i) Subjects who, in the opinion of the Investigator, have an existing condition that would compromise their participation and follow-up in this study, or extend their time to discharge beyond that required for their hip replacement surgery. ii) Women who are pregnant. iii) Subjects who are known drug or alcohol abusers or with psychological disorders that could effect follow-up care or treatment outcomes. iv) Subjects who have participated in a clinical study with an investigational product in the last 6 month(s). v) Subjects who are currently involved in any injury litigation claims. vi) Subjects with a Body Mass Index (BMI) \> 30. vii) Subjects with a malunion, arthrodesis or severe dysplasia with superior femoral head migration. viii) Subjects requiring a simultaneous bilateral total hip arthroplasty. ix) Subjects undergoing the second stage of a staged bilateral who are less than 9 months post-arthroplasty