SwePub - search: WFRF:(Garellick Göran 1948)

Enumeration	Reference	Cover	Find
1.	Östgaard, Hans-Christian, 1948, et al. (author) Femoral alignment of the Charnley stem: a randomized trial comparing the original with the new instrumentation in 123 hips. 2001 In: Acta orthopaedica Scandinavica. - : Medical Journals Sweden AB. - 0001-6470. ; 72:3, s. 228-32 Journal article (peer-reviewed)abstract Deficient cement mantles are associated with aseptic loosening of the stem component of total hip replacement. In a former study of 206 Charnley stems, we found high frequencies of stem malalignment, especially on the lateral view, consequently resulting in a high percentage of low cement mantle grading. If the "true" lateral radiographic projection is not used, there is a risk that the frequency of mantle defects is underestimated. A logistic regression analysis showed a high correlation between low cement mantle grading and stem loosening after a mean follow-up of 10 years. The new Charnley instrumentation was introduced in 1994 and we started a randomized trial including 123 prostheses to determine whether the new instrumentation improved the position of the stem in both the AP and lateral planes. Postoperative radiographs revealed a significant change in AP positioning-i.e., from a high percentage of varus with the original method to valgus with the new instrumentation. However, there was no difference on the lateral view, with a persisting high frequency of stems with implant-inner cortex contact resulting in high percentages of low cement-mantle grading in both systems. If this deficiency, in a long-term perspective, is associated with aseptic loosening, as many authors have claimed, the manufacturers should address the problem.
2.	Herberts, Peter, 1939, et al. (author) Annual report 2003 of the Swedish Hip Arthroplasty Register 2004 Reports (other academic/artistic)

Östgaard, Hans-Christian, 1948, et al. (author)
Femoral alignment of the Charnley stem: a randomized trial comparing the original with the new instrumentation in 123 hips.
2001
In: Acta orthopaedica Scandinavica. - : Medical Journals Sweden AB. - 0001-6470. ; 72:3, s. 228-32
Journal article (peer-reviewed)abstract
- Deficient cement mantles are associated with aseptic loosening of the stem component of total hip replacement. In a former study of 206 Charnley stems, we found high frequencies of stem malalignment, especially on the lateral view, consequently resulting in a high percentage of low cement mantle grading. If the "true" lateral radiographic projection is not used, there is a risk that the frequency of mantle defects is underestimated. A logistic regression analysis showed a high correlation between low cement mantle grading and stem loosening after a mean follow-up of 10 years. The new Charnley instrumentation was introduced in 1994 and we started a randomized trial including 123 prostheses to determine whether the new instrumentation improved the position of the stem in both the AP and lateral planes. Postoperative radiographs revealed a significant change in AP positioning-i.e., from a high percentage of varus with the original method to valgus with the new instrumentation. However, there was no difference on the lateral view, with a persisting high frequency of stems with implant-inner cortex contact resulting in high percentages of low cement-mantle grading in both systems. If this deficiency, in a long-term perspective, is associated with aseptic loosening, as many authors have claimed, the manufacturers should address the problem.

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