A Randomised Single Centre Study to Compare the Long-term Performance of 4 Designs of the DePuy Ultima LX Stem in Primary Total Hip Replacement

Clinical and Radiographic Evaluation to Compare a Polished and Non-polished Collared Stem and a Polished and Non Polished Collarless Stem in Primary Total Hip Replacement

The purpose of this study is to compare the performance of 4 designs of the DePuy Ultima LX hip stem in the treatment of patients with hip joint disease requiring a total hip replacement. Patients who enter the study will be randomly allocated to one of the 4 designs of the DePuy Ultima LX hip stem and will be evaluated at regular intervals following hip surgery using patient, clinical and x-ray assessments.

Inclusion Criteria:

Current indications for primary total hip arthroplasty utilising a cemented femoral component. These include pain, deformity and loss of function which are not responsive to medical treatment

Exclusion Criteria:

i) Revision Total Hip Arthroplasty ii) Rheumatoid arthritis iii) Age greater than 80 years at time of surgery iv) Age less than 60 years at time of surgery v) Previous hip joint sepsis vi) Obesity vii) Patient likely to remain housebound once rehabilitation is complete