Large-diameter ceramic bearings offer positive results for THA despite tendency to squeak (Healio)
Although the use of large-diameter ceramic bearings for total hip arthroplasty produced squeaking in certain cases, early postoperative results were encouraging, according to study researchers.
The researchers reviewed data from 178 patients who underwent total hip arthroplasty in 189 hips, with an average follow-up of 28 months. Patients had been assessed preoperatively and at follow-up at 6 weeks, 6 months and 2 years to examine range of motion and Harris Hip Score (HHS). Additionally, squeaks and other noises, as well as complications, were recorded.
The researchers analyzed preoperative and postoperative radiographs of squeaking hips to determine leg length restoration, offset and center of rotation — factors reported in other studies to have an association with the incidence of squeaking. Additionally, anteroposterior pelvic and lateral radiographs were used to assess cup inclination and anteversion.
Results showed mean HHS improved from 54 points preoperatively to 92 points postoperatively, with 175 hips observed to have excellent results, five hips observed to have fair results...
