Comparison of functional outcomes of hip arthroplasty via posterior and lateral approach

Abstract

Many surgical approaches to hip have evolved over the period of time surgical approaches differs chiefly in position of patient in supine or lateral and whether the hip is dislocated anteriorly or posteriorly. The choice of surgical approaches is largely depending on personal preference and training. Gibsons posterior and hardinges direct lateral approach are the two most commonly used surgical approaches. Arthroplasty surgeons remained discordant in their choice between two approaches. In this study we try to evaluate the clinical, radiological and functional outcome of hemi-replacement and total hip replacement operated by posterior or lateral approach. No significant difference was found in limb length discrepancy in both approach. Incidence of dislocation was found high in patients operated by posterior approach. Peri prosthetic fractures were seen in 2 cases operated by lateral approach. Dislocation rate was 10 percent with posterior approach. Postoperative lurch was found significantly higher in THR with lateral approach. No significant difference was seen in intra-op blood loss, duration of surgery. Superiority of one approach over another approach could not be established.