Osteonecrosis after allogeneic bone marrow transplantation

Area of Science:

• Orthopedic Surgery
• Bone Marrow Transplantation Complications
• Osteonecrosis Treatment

Background:

• Osteonecrosis is a severe complication following bone marrow transplantation, often necessitating total hip arthroplasty (THA) due to prolonged steroid use for graft-versus-host disease.
• Nonoperative treatments for this condition have historically yielded poor results, making surgical intervention a primary option.

Purpose of the Study:

• To assess the functional outcomes, complication rates, and durability of THA in patients with osteonecrosis secondary to bone marrow transplantation.
• To compare the longevity of THA in this patient group with THA performed for idiopathic osteonecrosis.

Main Methods:

• Retrospective review of 77 patients (123 hips) who underwent THA for osteonecrosis after bone marrow transplantation.
• All procedures utilized alumina ceramic bearings with 32 mm alumina heads.
• Minimum follow-up of 2 years, with a mean follow-up of 9.2 years.

Main Results:

• Seven revisions were documented: three for late septic loosening and four for late aseptic loosening.
• The 10-year survivorship, considering component loosening as the endpoint, was 74.8%.
• Septic loosening was identified as a significant concern in this patient population.

Conclusions:

• Total hip arthroplasty provides acceptable functional improvement for osteonecrosis post-bone marrow transplantation, despite revision risks.
• The survivorship rates are considered acceptable in this challenging patient group.
• Septic loosening is a critical complication that requires careful consideration in patients undergoing THA after bone marrow transplantation.