Over 90% survival at 12 years of follow-up after acetabular revisions of total hip arthroplasties (THAs) using allograft bone treated with the Supercrit® process and a cemented cup within a reinforcement ring: A retrosective study of 51 cases performed at
Seance of wednesday 04 december 2024 (L'Académie reçoit la SOFCOT - Les reprises des prothèses de hanche)
DOI number : 10.26299/j9e5-8r23/emem.2024.32.06
Abstract
We report the results of 51 acetabular loosening cases in total hip arthroplasty operated on at the Amiens University Hospital between 2005 and 2010. The mean age of the patients was 66 years. Bone loss was classified as grade 2 in 4 cases, grade 3 in 35 cases, and grade 4 in 12 cases.
A dual-mobility cup was cemented in 9 cases, and a polyethylene cup was used in 42 cases with the aid of 11 Burch-Schneider rings, 39 Müller rings, and 1 Link® reinforcement device. A CO₂-treated allograft (Supercrit®), averaging 12 femoral heads, was used in all cases.
At an average follow-up of 12 years, the survival rate was 91.5%, considering revision for acetabular loosening as the primary endpoint. The PMA score increased by 4 points compared to the preoperative score. Dislocation was the most common complication (11.7 %) but was not observed in cases where a cemented dual-mobility cup was used within the ring.
A dual-mobility cup was cemented in 9 cases, and a polyethylene cup was used in 42 cases with the aid of 11 Burch-Schneider rings, 39 Müller rings, and 1 Link® reinforcement device. A CO₂-treated allograft (Supercrit®), averaging 12 femoral heads, was used in all cases.
At an average follow-up of 12 years, the survival rate was 91.5%, considering revision for acetabular loosening as the primary endpoint. The PMA score increased by 4 points compared to the preoperative score. Dislocation was the most common complication (11.7 %) but was not observed in cases where a cemented dual-mobility cup was used within the ring.