2019, Number 1
Revista Cubana de Ortopedia y Traumatología 2019; 33 (1)
López-Trabucco RE, Pelayo-de-Tomás JM, Novoa-Parra CD, Morales Suárez-Varela M, Rodrigo-Pérez JL
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ABSTRACTIntroduction: The restoration of biomechanical forces through offset adjustment and limb length has become an important objective when the surgeon seeks a good postoperative functional result. However, the clinical advantages of femoral offset restoration and complications of restoration failure have not been clearly established.
Objective: To evaluate the effect of offset or femoral cantilever on the clinical and functional results of the patients.
Acquisition of evidence: An exploration was carried out in the Pubmed database, with the keywords: “hip arthroplasty”, “hip prosthesis”, “clinical result” and “functional result”. We searched for articles published from 2008 to 2018, based on humans and written in English, Spanish or French. Six articles were selected because they clearly explained the presence of a radiological measurement of the femoral offset, including validated scales and comparative analysis.
Results: The literature consulted reflected heterogeneous results. In the group of patients with decreased offset, one article showed less function. In another study, a better score was observed in the group of patients with increased offset. In turn, one investigation reported less pain was found in the reduced offset group.
Conclusions: Due to the inconsistency in the results and the methodologies used, it has not been possible to recognize the clinical and functional benefit of offset restoration. Some authors included in this review, after not finding statistically significant differences, stated that the restoration or increase of the femoral offset provided good results, without negative effects.