Abstract
BackgroundTo prevent bone loss in hip arthroplasty, several short stem systems have been developed, including the Mayo conservative hip system. While there is a plethora of data confirming inherent advantages of these systems, only little is known about potential complications, especially when surgeons start to use these systems.MethodsIn this study, we present a retrospective analysis of the patients’ outcome, complications and the complication management of the first 41 Mayo conservative hips performed in 37 patients. For this reason, functional scores, radiographic analyses, peri- and postoperative complications were assessed at an average follow-up of 35 months.ResultsThe overall HHS improved from 61.2 pre-operatively to 85.6 post-operatively. The German Extra Short Musculoskeletal Function Assessment Questionnaire (XSFMA-D) improved from 30.3 pre-operatively to 12.2 post-operatively. The most common complication was an intraoperative non-displaced fracture of the proximal femur observed in 5 cases (12.1%). Diabetes, higher BMI and older ages were shown to be risk factors for these intra-operative periprosthetic fractures (p < 0.01). Radiographic analysis revealed a good offset reconstruction in all cases.ConclusionIn our series, a high complication rate with 12.1% of non-displaced proximal femoral fractures was observed using the Mayo conservative hip. This may be attributed to the flat learning curve of the system or the inherent patient characteristics of the presented cohort.
Highlights
To prevent bone loss in hip arthroplasty, several short stem systems have been developed, including the Mayo conservative hip system
It has been demonstrated that minimally invasive surgical approaches to the hip, e.g. the minimally-invasive direct
A steadily increasing number of young patients undergo total hip arthroplasty as quality of life standards in Western societies have increased during the last century while patients demand a great deal of their mobility even at higher ages [1, 2]
Summary
To prevent bone loss in hip arthroplasty, several short stem systems have been developed, including the Mayo conservative hip system. Total hip arthroplasty (THA) is one of the most effective procedures in orthopaedic surgery. It provides pain relief and restores function as well as mobility. The principle of minimally invasive hip surgery (MIS) includes soft-tissue sparing techniques and conservation of autochthonous bone stock. A steadily increasing number of young patients undergo total hip arthroplasty as quality of life standards in Western societies have increased during the last century while patients demand a great deal of their mobility even at higher ages [1, 2]. Younger individuals are more likely in need of revision surgery with adequate femoral bone stock being essential for satisfactory results following revision arthroplasty. Resurfacing implants have shown acceptable short- and midterm results compared to conventional designs but higher complication
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