Clinical and Radiological Midterm Results of the MAYO® Short Stem Total Hip Arthroplasty

Dietz J, Radetzki F, Zeh A, Delank KS and Wohlrab D

Department of Orthopaedic Surgery and Traumatology, Martin-Luther- University of Halle-Wittenberg, Halle/Saale,
Germany

^*Correspondance to: David Wohlrab 

 PDF  Full Text DOI: 10.25107/2474-1647.2033

Abstract

Short stem arthroplasty of the hip is still controversial discussed. There are currently only a few mid and long-term results for short stem hip arthroplasties published. The goal of this retrospective single center study was to analyze the clinical and radiological midterm results of the Mayo® short stem prosthesis in terms of subjective patient’s satisfaction, implant positioning and long term stability. There were 51 patients with 61 Mayo® hip replacements included which were performed from 2000 to 2003 based on osteoarthrosis. The Harris Hip Score (HHS) and Forgotten Joint Score (FJS) were used to measure the patient’s satisfaction, hip function and awareness of the hip joint in every day’s life. Based on radiographs leg length, stem positioning, femoral offset and Center of Rotation (COR) were proved. The occurrence of radiolucent lines and heterotypic ossifications were noted. The mean follow up was 164 months. For the HHS, an average of 84 points and for the FJS an average of 68% was measured. There was no leg length discrepancy and a mean stem position was 1,6° valgus. The femoral offset increased by an average of 6 mm. The COR was medialized by an average of 6 mm. In 14 hips, radiolucent lines appeared in Gruen-Zones 1, 2, 3 and/or 7. Heterotypic ossifications were detected in 27 Mayo® stems at stage 1 to 3 using Brooker classification. The Mayo® prosthesis is a reliable stem with comparable midterm results compared to conventional stems. That’s why it should be used for the treatment of younger patients.

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Cite the article

Dietz J, Radetzki F, Zeh A, Delank KS, Wohlrab D. Clinical and Radiological Midterm Results of the MAYO® Short Stem Total Hip Arthroplasty. Clin Surg. 2018; 3: 2033.