18 Patients with SCD and 2ndry Osteoarthritis of their hips due to Avascular Necrosis underwent uncemented THA.

There were 12 male and 6 female patients.

Patient had their pre op WOMAC/SF-36/HOOS/and Oxford hip scores recorded preoperatively a well as 3 month, 6months and one year post op.

The outcome scores at one year were significantly better than the pre operative scores

However, when compared to a matched cohort of patients who underwent THA for reasons other than SCD/AVN, e.g. primary OA, rheumatoid arthritis, post traumatic OA, the WOMAC pain score improvement was less.