Comparative Efficacy of Bone Defect Filler Strategies Following Lesion Debridement for Osteonecrosis of the Femoral Head: A Systematic Review and Network Meta-Analysis.
Zukang Miao, Zhiwei Pei, Bing Wang et al.
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In 30 seconds
This systematic review and Bayesian network meta-analysis compared bone-defect fillers used after lesion debridement for osteonecrosis of the femoral head. It included 18 comparative studies (10 randomised and 8 non-randomised), involving 1176 patients and 1284 hips, and assessed 14 strategies. Tantalum rods combined with bone graft showed relative advantages for functional recovery and pain relief, while tantalum rods alone were associated with more conversions to total hip arthroplasty. Iliac autograft with screw fixation ranked highest for preventing radiographic progression, but differences between interventions were not significant, making that ranking uncertain.
Key findings
- Across 18 studies, 1176 patients and 1284 hips were included; 14 filler strategies were compared.
- Tantalum rods combined with bone graft showed relative advantages in Harris Hip Score and Visual Analogue Scale outcomes.
- Tantalum rods alone were associated with a higher rate of conversion to total hip arthroplasty.
- Iliac autograft with screw fixation ranked first for preventing radiographic progression, but pairwise differences were not significant.
Why it matters
Filler choice may influence early function, pain, and structural outcomes after hip-preserving debridement for femoral-head osteonecrosis. The findings highlight that apparent advantages differ by outcome: a strategy associated with better early recovery may not have the same profile for later failure. Comparative evidence can inform discussion of reconstruction options, while the uncertain rankings caution against treating one material as definitively superior.
What to keep in mind
The analysis combined randomised and non-randomised comparative studies, and the authors call for higher-quality studies with longer follow-up to validate long-term efficacy. Several favorable rankings were not supported by significant pairwise differences.