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Published on: July 8, 2025
Femoral-head vascularity after hip surface arthroplasty
Arun Kannan1, Chandra Sekhar Bal, Vijay Kumar
1Department of Orthopaedics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India. arunkannan.arun@gmail.com
Background:
iatrogenic devascularization of the femoral head is as an area of concern following hip resurfacing arthroplasty, with probable implications on short-term failure and long-term survival of the implant.
Materials And Methods:
we assessed the vascularity of 25 resurfaced femoral heads in 20 patients by comparison with preoperative and postoperative Tc-99m methylene diphosphonate (MDP) bone scintigraphy images, the postoperative scans being done 9 months after the surgery.
Results:
eight out of 25 hips (32%) showed <55% of their preoperative uptake at a mean of 9 months after surgery and were categorized as showing reduced vascularity.
Conclusion:
our study reveals reduction in vascularity of the femoral-head remnant as a frequent occurrence after hip resurfacing. Our study also highlights the role of bone scintigraphy as tool in assessing the vascularity of resurfaced femoral heads.
