Summary of studies that compared groups of patients treated with HA and THA.

<p>Abbreviations: NG = not given; HA = hemoarthroplasty; THA = total hip arthroplasty; PCU = acetabular polycarbonate-urethane cup; PCA = polyethylene cemented acetabular;</p><p>No(p) = number of patients;</p><p># means patients available for the clinical data.</p>