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Journal of Bone and Joint Surgery - British Volume, Vol 88-B, Issue 9, 1143-1148.
doi: 10.1302/0301-620X.88B9.18008  
Copyright © 2006 by British Editorial Society of Bone and Joint Surgery
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Palamed G compared with Palacos R with gentamicin in Charnley total hip replacement

A RANDOMISED, RADIOSTEREOMETRIC STUDY OF 60 HIPS

G. Hallan, MD, Consultant Orthopaedic Surgeon1; A. Aamodt, MD, PhD, Consultant Orthopaedic Surgeon2; O. Furnes, MD, PhD, Consultant Orthopaedic Surgeon1; A. Skredderstuen, MD, Consultant Orthopaedic Surgeon1; K. Haugan, MA, Consultant2; and L. I. Havelin, MD, PhD, Professor, Consultant Orthopaedic Surgeon1

1 Department of Orthopaedic Surgery, Haukeland University Hospital and Department of Surgical Sciences, University of Bergen, 5021 Bergen, Norway.
2 Department of Orthopaedic Surgery, Trondheim University Hospital, 7030 Trondheim, Norway.

Correspondence should be sent to Dr G. Hallan; e-mail: geir.hallan{at}helse-bergen.no

We performed a randomised, radiostereometric study comparing two different bone cements, one of which has been sparsely clinically documented. Randomisation of 60 total hip replacements (57 patients) into two groups of 30 was undertaken. All the patients were operated on using a cemented Charnley total hip replacement, the only difference between groups being the bone cement used to secure the femoral component. The two cements used were Palamed G and Palacos R with gentamicin. The patients were followed up with repeated clinical and radiostereometric examinations for two years to assess the micromovement of the femoral component and the clinical outcome.

The mean subsidence was 0.18 mm and 0.21 mm, and the mean internal rotation was 1.7° and 2.0° at two years for the Palamed G and Palacos R with gentamicin bone cements, respectively. We found no statistically significant differences between the groups. Micromovement occurred between the femoral component and the cement, while the cement mantle was stable inside the bone. The Harris hip score improved from a mean of 38 points (14 to 54) and 36 (10 to 57) pre-operatively to a mean of 92 (77 to 100) and 91 (63 to 100) at two years in the Palamed G and Palacos R groups, respectively. No differences were found between the groups.

Both bone cements provided good initial fixation of the femoral component and good clinical results at two years.




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Orthopaedic bone cement: DO WE KNOW WHAT WE ARE USING?
J Bone Joint Surg Br, May 1, 2008; 90-B(5): 643 - 647.
[Abstract] [Full Text] [PDF]


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Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General