Abdulaziz Aljurayyan1, Dylan Tanzer2, Michael Tanzer3. 1. Division of Orthopaedic Surgery, McGill University Health Centre, 1650 Cedar Avenue, B5.159, Montreal, QC, H3G 1A4, Canada. ajurayyan@gmail.com. 2. Sackler Medical School, Tel Aviv University, Tel Aviv, Isreal. 3. Division of Orthopaedic Surgery, McGill University Health Centre, 1650 Cedar Avenue, B5.159, Montreal, QC, H3G 1A4, Canada. michael.tanzer@mcgill.ca.
Abstract
BACKGROUND: The aim of this retrospective review was to determine the incidence and severity of heterotrophic ossification (HO) following acute revision total hip arthroplasty (THA), and whether this represents a significant risk factor for HO that should be treated prophylactically. MATERIALS AND METHODS: A total of seven patients (three men and four women) with a mean age of 55 years (39-70 years) who underwent a reoperation of their THA for any reason that required a hip arthrotomy within 3 weeks of their primary or revision THA were included, with a mean follow-up of 8.8 years (2-12 years). All patients were evaluated radiographically for any evidence of HO and clinically using the Harris Hip Score. RESULTS: All seven hips (100 %) developed HO, with 71 % being severe (Brooker III and IV HO). One hip (14 %) developed Brooker IV HO, four hips (57 %) developed Brooker III HO, and two hips (29 %) developed Brooker II HO. The patient's range of motion varied, but was very limited in three patients. Three patients (42.8 %) were not satisfied with their surgery; one patient had Brooker IV HO, and two patients had Brooker III HO. CONCLUSION: Acute reoperation after primary or revision THA is a significant risk factor for the development of extensive HO, which requires prophylactic treatment.
BACKGROUND: The aim of this retrospective review was to determine the incidence and severity of heterotrophic ossification (HO) following acute revision total hip arthroplasty (THA), and whether this represents a significant risk factor for HO that should be treated prophylactically. MATERIALS AND METHODS: A total of seven patients (three men and four women) with a mean age of 55 years (39-70 years) who underwent a reoperation of their THA for any reason that required a hip arthrotomy within 3 weeks of their primary or revision THA were included, with a mean follow-up of 8.8 years (2-12 years). All patients were evaluated radiographically for any evidence of HO and clinically using the Harris Hip Score. RESULTS: All seven hips (100 %) developed HO, with 71 % being severe (Brooker III and IV HO). One hip (14 %) developed Brooker IV HO, four hips (57 %) developed Brooker III HO, and two hips (29 %) developed Brooker II HO. The patient's range of motion varied, but was very limited in three patients. Three patients (42.8 %) were not satisfied with their surgery; one patient had Brooker IV HO, and two patients had Brooker III HO. CONCLUSION: Acute reoperation after primary or revision THA is a significant risk factor for the development of extensive HO, which requires prophylactic treatment.
Entities:
Keywords:
Acute; Complication; Heterotopic ossification; Hip arthroplasty; Revision