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Updated: Jun 16, 2026

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
Published on: July 2, 2021
[Hip joint arthrolysis due to heterotopic ossification]
Konstantinos Anagnostakos1, Nora Schmid, Dieter Kohn
1Klinik für Orthopädie und Orthopädische Chirurgie, Universitätskliniken des Saarlandes, Germany. konstantinos.anagnostakos@uniklinik-saarland.de
Surgical arthrolysis aims to restore joint mobility and stability while reducing pain. Post-operative management includes physical therapy and potentially medication or irradiation to prevent recurrence of heterotopic ossification (HO).
Area of Science:
- Orthopedic Surgery
- Reconstructive Surgery
Background:
- Heterotopic ossification (HO) can cause significant joint stiffness, pain, and deformity, severely limiting quality of life.
- HO incidence after total hip arthroplasty is estimated at 42%, with 9% experiencing severe limitations.
Purpose of the Study:
- To restore joint mobility and stability.
- To preserve femoral head perfusion.
- To reduce pain and improve daily function.
Main Methods:
- Surgical release of ectopic bone, carefully protecting neurovascular structures.
- Patient positioning tailored to the location and size of ectopic bone.
- Postoperative management involving irradiation, NSAIDs, and intensive physical therapy.
Main Results:
- Literature review indicates variable HO occurrence, with higher rates in patients with neurological injuries.
- Recurrence rates after surgical arthrolysis for HO range from 25-30% over a mean follow-up of 6 years.
Conclusions:
- Surgical arthrolysis offers a potential solution for joint stiffness caused by HO.
- Careful patient selection and comprehensive postoperative management are crucial for optimal outcomes.
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