The most common pathogens in surgical site infections after total hip and knee arthroplasty are methicillin-sensitive Staphylococcus aureus (MSSA), methicillin-resistant S. aureus (MRSA), and coagulase-negative staphylococci. Patients colonized with MSSA or MRSA have an increased risk for a staphylococcal infection at the site of a total hip or knee arthroplasty. Most colonized individuals who ...

Setting and participants. A total of 1,453,493 Medicare Part A fee-for-service beneficiaries who underwent primary total hip arthroplasty and 348,596 who underwent revision total hip arthroplasty. For primary total hip arthroplasty, to select a population whose procedures were performed electively, patients with acute fractures and those admitted through the emergency department were excluded. ...

two cases of dislocation of total knee arthroplasty presented to us within the same week. the first patient is a 71year-old woman who underwent bilateral primary total knee arthroplasty. the left knee dislocated three weeks after the surgery. Due to failure of conservative measures, she underwent revision total knee arthroplasty. the other patient is a 72-year-old woman presenting ten years aft...

The authors describe a step-by-step technique for reverse total shoulder arthroplasty using arthrotomy via the enlarged transacromial superior approach. This technique seems ideal for reinsertion of the tuberosities and to ensure adequate postoperative tensional balance of the infraspinatus and the subscapularis, which is critical for the rotator cuffs to function properly and to achieve optima...

The increasing frequency of joint arthroplasty has led to an increasing requirement for revision surgery. When treating an aseptically failed elbow arthroplasty one of the main issues is poor or absent proximal ulna bone stock, due to osteolysis. We report our experience with the use of strut allograft reconstruction of the proximal ulna, as an adjunctive procedure to non-custom revision total ...

Background: Aim of this study was to compare the clinical and radiological long-term outcomes following operativetreatment of comminuted radial head fractures using 1) primary radial head resection arthroplasty, 2) acute radial headresection, or 3) necessary secondary prosthetic removal. Additionally, we evaluated complex radial head fracturescombined with elbow dislocation and verified the hyp...

TEACHING OBJECTIVES: To review the current concepts of shoulder arthroplasty. To review the normal post-operative appearance of shoulder arthroplasty including materials, design, and function. To review the imaging appearance of common complications. CONTENTS: Prosthesis material, design, and terminology Preoperative imaging assessment Normal post-operative imaging appearance Imaging findings o...

Early attempts at spinal arthroplasty in the 1950s yielded limited success. A revival of this procedure occurred in the 1980s and became a realistic treatment option in the 1990s. Both lumbar and cervical arthroplasties have been introduced in the US since 2000 for randomized, prospective studies in accordance with the Food and Drug Administration (FDA) investigational device exemption provisio...

BACKGROUND AND PURPOSE The long-term outcome of patellofemoral arthroplasty is related to progression of femorotibial osteoarthritis with need for conversion to total knee arthroplasty. We investigated whether prior patellofemoral arthroplasty compromises the results of total knee arthroplasty. METHODS 13 patients who had had 14 Richards type II patellofemoral arthroplasties converted to tota...

In the past, total ankle arthroplasty was largely abandoned due to poor survivorship most often caused by loss of bone support. High complication rates were also reported. Despite this, there is renewed interest in ankle arthroplasty and encouraging results are seen in survivorship with midterm follow-up. The procedure, however, remains more challenging than total hip or total knee arthroplasty...