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Direct Mouse Trauma/Burn Model of Heterotopic Ossification
Published on: August 6, 2015
Heterotopic ossification after total hip arthroplasty: our experience
A Spinarelli1, V Patella, M Petrera
12nd Unit of Orthopaedic and Trauma, University of Bari, Bari, Italy. antonio.spinarelli@libero.it
Musculoskeletal Surgery
|January 7, 2011
Summary
Heterotopic ossification (HO) is common after non-cemented total hip arthroplasty (THA). This study found a 28.7% incidence of HO, mostly mild, with minimal impact on patient outcomes.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
Background:
- Heterotopic ossification (HO) involves bone formation in soft tissues around joints, a known complication of total hip arthroplasty (THA).
- Non-cemented prostheses are suspected to increase HO incidence, though predisposing factors require further investigation.
Purpose of the Study:
- To evaluate the incidence and severity of HO after non-cemented total hip arthroplasty.
- To assess the clinical relevance of HO in relation to patient outcomes and functional scores.
Main Methods:
- A retrospective study of 202 non-cemented THA procedures.
- Radiographic assessment for HO using the Brooker classification at multiple postoperative intervals.
- Evaluation of Harris hip scores pre- and post-surgery.
Main Results:
- HO was observed in 52 out of 181 evaluated hips (28.7%).
- The majority of HO cases were graded as Class I (17.7%) or Class II (7.73%), with no instances of Class IV.
- Patients with HO showed functional outcomes comparable to those without HO, with mean Harris hip scores of 89 and 91, respectively.
Conclusions:
- Non-cemented THA is associated with a notable incidence of mild heterotopic ossification (Class I and II).
- The clinical significance of HO after non-cemented THA appears minimal, with no substantial impact on patient function or hip scores.
