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Periprosthetic Bone Mineral Density Changes After Implantation Of A Short Hip Stem Compared To A Straight Stem

Osteoarthritis, Hip Clinical Trial

Official title:
Periprosthetic Bone Mineral Density Changes After Implantation Of A Short Hip Stem Compared To A Straight Stem: Five-Year Results Of A Prospective, Randomized DEXA-Analysis

Clinical Trial Summary

The aim of this study is to evaluate periprosthetic bone mineral density (BMD) changes in the proximal femur after implantation of the Fitmore compared to the CLS stem.

Clinical Trial Description

After power analysis, 140 consecutive patients were prospectively included in the randomisation protocol receiving either a Fitmore short or a CLS straight stem. The short stem was assigned in 57 (37% females) cases and the straight stem in 83 (38% females) hips. Periprosthetic bone mineral density was measured before surgery, 7 days, 3, 12 and 60 months postoperatively, using dual energy x-ray absorptiometry (DEXA). The results of the first postoperative measurement served as the baseline value. Because of the different length of the two prostheses we used adapted Gruen zones to divide the periprosthetic bone in seven regions of interest (ROI) with equal length in the proximal zones 1,2,6 and 7, only the regions 3 and 5 featured different sizes. Clinical results were recorded using the WOMAC and the Harris hip score (HHS). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03147131
Study type Interventional
Source University Hospital Ulm
Contact
Status Active, not recruiting
Phase N/A
Start date August 1, 2010
Completion date July 2017
View Details
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