PERIACETABULAR BONE CHANGES AFTER TOTAL HIP ARTHROPLASTY WITH HIGHLY POROUS TITANIUM CUPS IN PATIENTS WITH LOW BONE MASS

Author:

Bondarenko Stanislav1,Filipenko Volodymyr1,Badnaoui Ahmed Amine1,Ashukina Nataliya1,Maltseva Valentyna1,Lazarenko Iurii2,Schwarzkopf Ran3

Affiliation:

1. SYTENKO INSTITUTE OF SPINE AND JOINT PATHOLOGY, KHARKIV, UKRAINE

2. MILITARY MEDICAL CLINICAL CENTER OF THE CENTRAL REGION, VINNYTSIA, UKRAINE

3. NYU LANGONE ORTHOPEDIC HOSPITAL, HOSPITAL FOR JOINT DISEASES, NYU, UNITED STATES

Abstract

The aim: To assess the bone remodeling around highly porous titanium cups TTM in patients with low bone mass one year after total hip arthroplasty (THA). Materials and methods: In this prospective study were included 18 patients (18 hips), whom was performed primary THA with the use of TTM cups. According to T-score of Lumbar Spine, patients were divided into 2 groups: normal bone mineral density (BMD) (n=9) if T-score ≥ –1, and low BMD (n=9) if T-score < –1. According to DeLee and Charnley’s model BMD in 3 periacetabular regions were evaluated 1 week and 1 year after THA. Results: One year after primary THA, BMD of all 3 periacetabular regions did not differ in patients of both groups comparing with initial data. One week after THA, it was found that BMD R1 and BMD R3 in low BMD group were lower by 1.4 times (p=0.035) and 1.5 times (р=0.001) respectively, BMD R2 did not differ from the normal BMD group. One year after THA it was found that in low BMD group BMD R1 and BMD R2 were lower by 1.5 times (р=0.005) and 1.3 times (р=0.050) respectively, BMD R3 did not differ from the group with normal BMD. Conclusions: The use of highly porous titanium cups TTM in patients with low bone mass did not lead to a bone loss in DeLee and Charnley periacetabular zones one year after THA. Consequently, the use of these cups in patients with low bone mass undergoing THA is a valuable treatment option.

Publisher

ALUNA

Subject

General Medicine

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