AIM: To study a modified porous @entity11608 technique for the treatment of @entity2530 of the femoral head. METHODS: The porous @entity11608 rod was combined with endoscopy, curettage, autologous bone grafting and use of bone marrow aspirates from iliac crest aspiration in 49 @entity1 (58 hips) with a mean age of 38 years. The majority of the @entity1 had idiopathic @entity2530 , followed by @entity228 -induced @entity2530 . Thirty-eight hips were of Steinberg stage II disease and 20 hips were of @entity5 . @entity1 were followed for 5 years and were evaluated clinically with the Merle D'Aubigne and Postel score and radiologically. The primary outcome of the study was survival based on the conversion to @entity572 ( @entity572 ). Secondary outcomes included @entity2530 to a higher disease stage at 5 years compared to the preoperative period and identification of factors that were associated with survival. The Kaplan-Meier survival analysis was performed to evaluate the survivorship of the prosthesis, and the Fisher exact test was performed to test associations between various parameters with survival. RESULTS: No @entity1 developed any serious intraoperative or postoperative complication including implant loosening or migration and donor site morbidity. During the 5-year follow up, 1 @entity1 died, 7 @entity1 had disease progression and 4 hips were converted to @entity572 . The 5-year survival based on conversion to @entity572 was 93.1% and the respective rate based on disease progression was 87.9%. @entity34 was associated with statistically significant better survival rates compared to @entity5 (P = 0.04). The comparison between idiopathic and non-idiopathic @entity2530 and between @entity479 -induced and non-steroid-induced @entity2530 did not showed any statistically significant difference in survival rates. The clinical evaluation revealed statistically significantly improved Merle d'Aubigne scores at 12 mo postoperatively compared to the preoperative period (P < 0.001). The mean preoperative Merle d'Aubigne score was 13.0 (SD: 1.8). The respective score at 12 mo improved to 17.0 (SD: 2.0). The 12-mo mean score was retained at 5 years. CONCLUSION: The modified porous @entity11608 rod technique presented here showed encouraging outcomes. The survival rates based on conversion to @entity572 are the lowest reported in the published literature.

Modified porous XXXX rod technique for the treatment of femoral head osteonecrosis.

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients', 'patient'] @entity34 :: ('MESH:D016609', 'Disease') :: ['Stage II disease'] @entity5 :: ('MESH:D009369', 'Disease') :: ['stage III disease'] @entity228 :: ('CHEBI:50858', 'Chemical') :: ['corticosteroid'] @entity572 :: ('MESH:D006617', 'Disease') :: ['THA', 'total hip arthroplasty'] @entity479 :: ('D013256', 'Chemical') :: ['steroid'] @entity11608 :: ('MESH:D013635', 'Chemical') :: ['tantalum'] @entity2530 :: ('MESH:D010020', 'Disease') :: ['deterioration of the osteonecrosis', 'osteonecrosis']
@entity11608 :: (MESH:D013635,Chemical) :: ['tantalum']
