The Journal of arthroplasty
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Adequate interference fit and mechanical stability through optimal surgical technique are essential to prevent subsidence and loosening in cementless total hip arthroplasty. The purpose of this study is to determine the effect of surgical technique on radiographic subsidence and subsequent stability of a modern taper-wedge cementless stem. ⋯ These observations support that maximizing mediolateral canal fill and avoiding under-sizing the femoral implant with meticulous broaching technique minimizes subsidence and optimizes stability of modern cementless taper-wedge stems. Failure to optimize canal fill with appropriate broaching and surgical technique may predispose femoral components to failure from aseptic loosening.
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This prospective study aimed to examine whether patients' and physicians' outcome expectations were related to subjective (ie, fulfillment of expectations) and objective outcomes (ie, change in pain and function) in hip and knee arthroplasty patients up to 6 months post-surgery. ⋯ Although patients' high expectations were associated with better objective outcomes, improvement was still less than patients expected. Thus, patients often have too high expectations of outcomes of surgery. In addition, physicians were able to influence patients' expectations and to change experienced knee patients' outcomes.
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This study aims to investigate how expectation fulfillment changes up to 10 years following total knee arthroplasty (TKA). ⋯ Expectation fulfillment following TKA changes with time. Expectations of kneeling ability and the ability to perform outside activities demonstrated persistently low levels of fulfillment. This information can be used to manage the longer term expectations of patients undergoing TKA.
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The cost-effectiveness of bariatric surgery to achieve weight loss prior to total hip arthroplasty (THA), and decrease the complications and costs associated with THA in the morbidly obese, is unknown. This study evaluated the cost-effectiveness of bariatric surgery prior to THA for morbidly obese patients with end-stage hip osteoarthritis (OA). ⋯ II.
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The rarity of lateral unicompartmental knee arthroplasty (UKA) results in a lack of large cohort studies and understanding. The aim of this study is to comprehensively evaluate survivorship of lateral UKA with registry data and compare this to medial UKA. ⋯ Similar survivorship of lateral and medial UKA was reported. Specifically, there is a notable risk for revision when using mobile-bearing designs for lateral UKA. Failure modes and type of revision depends on laterality and bearing design. These findings emphasize that surgical challenges related to anatomy and kinematics of the lateral and medial knee compartment need to be considered.