Prospective Randomised Clinical Trial Assessing Subsidence and Rotation, Using Radiostereometric Analysis, of Two Modular Cementless Femoral Stems (Global K2 and Apex)

Overview

Journal J Orthop

Specialty Orthopedics

Date 2014 Aug 9

PMID 25104894

Citations 2

Authors

Mark Edmondson

Jay Ebert

Oscar Nivbrant

David Wood

Affiliations

Soon will be listed here.

Abstract

Aims: To accurately assess subsidence, rotation and clinical scores in two cementless femoral stems.

Methods: 260 patients received either K2 or Apex femoral stems and were studied over 2y, with RSA and clinical scores.

Results: Mean Oxford Hip score for both stems was excellent (45.78 and 46.76). Very little subsidence or rotation were noted on RSA in either stem. There were no statistically significant differences in clinical scores, or radiological motion between stems. Revision rate was 0.8% over the study period.

Conclusion: Excellent clinical and RSA scores over the 2y study period predict good long term outcomes for these stems.

Citing Articles

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Greater early migration of a short-stem total hip arthroplasty is not associated with an increased risk of osseointegration failure: 5th-year results from a prospective RSA study with 39 patients, a follow-up study.

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