We have previously developed a radiographic technique, the oblique posterior condylar view, for assessment of the posterior aspect of the femoral condyles after total knee arthroplasty. The purpose of this study was to confirm the validity of this radiographic view based upon intra-operative findings at revision total knee arthroplasty. Lateral and oblique posterior condylar views were performe...

The complete removal of the cement mantle at revision arthroplasty can be extremely difficult. Some authors advise a 'cement-within-cement' revision technique in which a new layer of cement is applied to the old before insertion of the femoral component. We could find no long-term clinical data regarding the success of this procedure. In a simple biomechanical study, we examined the strength of...

Total knee arthroplasty is a successful operation that significantly improves patient's quality of life. However, studies demonstrated as only 82% to 89% of patients are satisfied with their surgery, being the other disappointed with regard to their expectations. Two to 5.7% of total knee arthroplasties (TKAs) require revision within 5 years. Both complex primary cases and revision TKA often ne...

Aim of this study was to evaluate the outcome fol-lowing extended trochanteric osteotomy in series of single surgeon, with emphasis on complications and union of osteotomy. Retrospective Case Series of all patients who had revision total hip replacement surgery performed by senior author between 2003 and 2012, with follow up between 1 and 10 years. 108 cases of revision hip arthroplasty with us...

Primary anterior cruciate ligament (ACL) reconstruction is considered a successful surgical procedure, but the results reported for revision ACL surgery are less satisfactory. The most common cause of technical failure in primary reconstruction is tunnel misplacement, particularly on the femoral side, although an anterior placement of the tibial tunnel may lead to graft impingement and failure....

Student modeling has been identi ed as an important component to the long term development of Intelligent Computer-Aided Instruction (ICAI) systems. Two basic approaches have evolved to model student misconceptions. One uses a static, prede ned library of user bugs which contains the misconceptions modeled by the system. The other uses induction to learn student misconceptions from scratch. Her...

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 Periprosthetic joint infection (PJI) is a serious complication of total knee arthroplasty. Two-stage revision is the most widely used technique and considered as the most effective for treating periprosthetic knee infection. The one-stage revision strategy is an emerging alternative option, however, its performance in comparison to the two-stage strategy is unclear. We therefore soug...

Revision surgery to address the migration or fracture of a lumbar interbody cage can be technically challenging. Scar tissue and fibrosis, among other anatomic barriers, can make removal of the cage a complicated procedure, potentially increasing postoperative pain as well as the probability of neurologic deficits. Use of the lateral surgical technique for removal of the cage can avoid these po...

This paper proposes textual reuse as the identification of reusable textual constructs in a retrieved solution text. This is done by annotating a solution text so that reusable sections are identifiable from those that need revision. We present a novel and generic architecture, Case Retrieval Reuse Net (CR2N), that can be used to generate these annotations to denote text content as reusable or ...