Published in:
Open Access
01-12-2010 | Original Article
Femoral-head vascularity after hip surface arthroplasty
Authors:
Arun Kannan, Chandra Sekhar Bal, Vijay Kumar, Ravi Mittal, Nishikant Damle, Rajesh Malhotra
Published in:
Journal of Orthopaedics and Traumatology
|
Issue 4/2010
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Abstract
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.