The elbow is a complex joint that is the mechanical link in the upper extremity between the hand and the shoulder. Loss of elbow function can severely affect activities of daily living. Arthrodesis of the elbow results in greater functional disability than arthrodesis of the ankle, hip, or knee joints. Arthrodesis is mainly performed for severe joint destruction most commonly due to posttraumat...

We report the surgical technique used to perform posterior-stabilized total knee arthroplasty (TKA) in two patients with a well positioned and functional hip arthrodesis. Intraoperatively, the operating table was placed in an increased Trendelenburg position. Episodically, we flexed the foot of the table by 90° to allow maximal knee flexion to facilitate exposure and bone cuts. We opted to rese...

Sixty-nine patients with congenital abnormality of the femur were reviewed. Their manifestation of femoral dysplasia ranged from an intact femur approximately 60 per cent of the length of the normal leg to a subtotal absence of the femur in which only the femoral condyles remained, often with a congenital fusion of the knee joint. Two groups were defined: Group I consisted of those with congeni...

In this work we investigated how to measure concurrently flexion-extension and internal-external rotations in a smart knee prosthesis. A configuration of magnetic sensors and magnets were designed and embedded in knee prostheses in which each sensor measures a mixture of information related to both rotations. Using correlation analyses, angle estimators were designed to separate the flexion-ext...

OBJECTIVE To evaluate the outcome of knee fixation without bone fusion using an intramedullary modular nail and interposed cement. MATERIAL AND METHODS Retrospective study of 29 infected total knee arthroplasties with prospective data collection and a mean follow-up of 4.2 years (3-5). RESULTS Complications included 2 recurrent infections, 1 peri-implant fracture, and 1 cortical erosion due...

BACKGROUND The presented case illustrates the critical role of a detailed preoperative radiological evaluation in complex spine surgery. CASE REPORT A 49-year-old patient was admitted for a revision surgery after L3-L5 fusion. Preoperative assessment showed preserved sagittal balance, coronal imbalance and valgus knee deformity. The patient reported pain of 8-10 in VAS (Visual Analogue Scale)...

BACKGROUND Demand for surgery to treat osteoarthritis (OA) of the hip, knee and spine has risen dramatically. Whereas total hip (THA) and total knee arthroplasty (TKA) have been widely accepted as cost-effective, spine surgeries (decompression, decompression with fusion) to treat degenerative conditions remain underfunded compared with other surgeries. METHODS An incremental cost-utility anal...

We describe a cohort of patients with a high rate of mid-term failure following Kinemax Plus total knee replacement inserted between 1998 and 2001. This implant has been recorded as having a survival rate of 96% at ten years. However, in our series the survival rate was 75% at nine years. This was also significantly lower than that of subsequent consecutive series of PFC Sigma knee replacements...

Obtaining an air physiogram improves visualization of the resected physis and allows the surgeon to assess whether a sufficient amount of growth plate has been removed during percutaneous drilling epiphysiodesis. From 2008 through 2011, the air physiogram technique was used in 37 percutaneous epiphysiodesis procedures about the knee (17 femora, 20 tibiae) in 31 children. Average follow-up was 4...

Analysis of knee joint vibration (VAG) signals can provide quantitative indices for detection of knee joint pathology at an early stage. In addition to the statistical features developed in the related previous studies, we extracted two separable features, that is, the number of atoms derived from the wavelet matching pursuit decomposition and the number of significant signal turns detected wit...