This study describes knee alignment and active knee range of motion (ROM) in a community-based group of 78-year old adults (n = 143) who did not have radiographic evidence of knee osteoarthritis in either knee (KL < 2). Although knee malalignment is a risk factor for knee osteoarthritis, most women and men had either valgus or varus alignments. Notably, no men were valgus in both knees. Women w...

BACKGROUND The aim of the study was to retrospectively analyse the long term clinical outcome, accuracy of correction, and the complication rate in patients treated for deformities around the knee with gradual distraction with or without additional limb lengthening using Ilizarov technique. MATERIAL AND METHODS The study presents a retrospective analysis of 26 patients treated for deformities...

BACKGROUND Computer-assisted orthopaedic surgery (CAOS) improves accuracy and reduces outliers in total knee arthroplasty (TKA). However, during the evaluation of CAOS systems, the error generated by the guidance system (hardware and software) has been generally overlooked. Limited information is available on the accuracy and precision of specific CAOS systems with regard to intraoperative fina...

1. Calcium turnover was determined after intravenous injection of radioactive 47Ca in patients with fluorosis and endemic genu valgum and in age-matched controls. Total Ca turnover in the body, loss of Ca from the body in urine, faeces and sweat (external turnover) and bone mineralization rate were calculated from whole-body retention of 47Ca and specific activity of 47Ca in serum. 2. Total Ca ...

PURPOSE To determine the various musculoskeletal manifestations of multiple epiphyseal dysplasia in children, and the course of this disease in childhood. METHODS Ten children were diagnosed and treated at the Children's Hospital of Eastern Ontario (CHEO) for multiple epiphyseal dysplasia, 1976-2001. We reviewed the clinical, pathological and radiographic records for these cases to determine ...

The grid-area required by a sorting net for input vectors of length N is shown to be at least (N ? 1) 2 =2. Of all sorting nets which use o(N 2) comparators, the bitonic sorting net of Batcher has been known to have a layout of O(N 2), but the hidden constant factor has not been investigated. A straightforward use of known techniques leads to a layout of grid-area 20:25N 2. We present area-eeci...

Salter-Harris type V fracture is a very rare injury in the immature skeleton. In most cases, it remains undiagnosed and untreated. We report a case of genu recurvatum deformity in a 15-year-old boy caused by a Salter-Harris type V fracture of the proximal tibial physis. The initial X-ray did not reveal fracture. One year after injury, genu recurvatum deformity was detected associated with signi...

Valgus moments on the knee joint during single-leg landing have been suggested as a risk factor for anterior cruciate ligament (ACL) injury. The purpose of this study was to test the influence of isolated valgus moment on ACL strain during single-leg landing. Physiologic levels of valgus moments from an in vivo study of single-leg landing were applied to a three-dimensional dynamic knee model, ...

Long-term success on total knee arthroplasty (TKA) depends mainly on restitution of the limb’s mechanical axis and appropriate balance of soft tissue, as these factors optimize the load distribution to the interfaces [1-4]. Almost all patients with osteoarthritis have some degree of articular deformity, in varus or valgus, associated or not to certain ligament instability. In most cases, conven...

The aim of this article is to study the relationship between tibia vara and external tibial torsion in adults. The following questions were asked: (1) what is the incidence of rotational deformity in patients with genu varum and (2) do patients who undergo correction of tibial torsion with genu varum have similar outcomes to those who undergo simple tibia vara correction? In this study, 69 pati...