Cementless hemiarthroplasty for unstable intertrochanteric fractures yielded high survival rates

Elderly patients with osteoporosis and unstable intertrochanteric fractures experienced good clinical and survival rates when treated with cementless bipolar hemiarthroplasty using a fully porous-coated stem, according to results published in The Journal of Arthroplasty.

Researchers performed clinical evaluation using Koval’s categories for activity level and Harris Hip score, as well as radiographic evaluations on 123 elderly patients with osteoporosis and unstable intertrochanteric fractures treated with cementless bipolar hemiarthroplasties using a fully porous-coated stem (Benfix Long Stem, Corentec). Researchers found 53 patients died and 14 patients were lost during the follow-up period, leaving 56 patients at final follow-up.

Results showed a mean Harris Hip score of 77 points at a mean follow-up of 61.8 months postoperatively. Researchers noted no loosening of the stem or osteolysis among patients. According to results, two hips had nonunion of greater trochanter and two hips had dislocation. Reoperation occurred in two patients due to periprosthetic fracture, results showed, and implant revision was performed on one patient due to periprosthetic infection.

When comparing preoperative and postoperative ambulatory levels, researchers found 36% of patients returned to pre-fracture ambulatory levels at final follow-up. Researchers also noted cumulative survival rates of 97.3% with reoperation for any reason as the endpoint and of 99.1% with femoral stem revision as the endpoint. – by Casey Tingle

Disclosure s : The researchers report no relevant financial disclosures.

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Source:

Kim JT, et al. J Arthroplasty. 2018;doi:10.1016/j.arth.2017.10.027.