OBJECTIVES Preservation of both anterior and posterior cruciate ligaments in total knee arthroplasty (TKA) can lead to near-normal post-operative joint mechanics and improved knee function. We hypothesised that a patient-specific bicruciate-retaining prosthesis preserves near-normal kinematics better than standard off-the-shelf posterior cruciate-retaining and bicruciate-retaining prostheses in...

We studied the anatomy of the patellofemoral joint in the axial plane on cryosections from a cadaver knee and on MR arthrotomograms from 30 patients. The cryosections revealed differences in the geometry and anatomy of the surface of the articular cartilage and corresponding subchondral osseous contours of the patellofemoral joint. On the MR arthrotomograms the surface geometry of the cartilage...

The human knee implant is computationally modelled in the mixed lubrication regime to investigate tribological performance of implant. This model includes complex geometry components, unlike elliptical contact models that approximate this geometry. Film thickness and pressure results are presented for an ISO gait cycle determine present within during its operation. It was found it possible span...

Though changes in normal joint motions and loads (e.g., following anterior cruciate ligament injury) contribute to the development of knee osteoarthritis, the precise mechanism by which these changes induce osteoarthritis remains unknown. As a first step toward identifying this mechanism, this study evaluates computational wear simulations of a patellofemoral joint specimen wear tested on a kne...

background: the aim of this study was to investigate vertebral geometry changes and determine cutoff value of vertebral height to predict fractures. methods: in a cross-sectional study, 280 postmenopausal women recruited .in all subjects bone mineral density and radiog raphy of the lumbar spine performed. lateral radiographs were evaluated for identification of vertebral fractures, using a vali...

objectives: patients suffering from mild to moderate knee osteoarthritis may be treated with unloader knee orthoses or laterally wedged insoles. the aim of this study was to identify and compare the effects of two orthoses in these patients. methods: 56 patients with medial compartment knee oa were evaluated when wearing an unloader knee orthosis and insoles with a 6° lateral wedge which were r...

The meniscus, composed of fibrocartilage, is a very important part the human knee joint that behaves like buffer. Located in middle femoral condyles and tibial plateau, it necessary structure to maintain normal biomechanical properties knee. Whether walking or exercising, meniscus plays vital role protect articular surface both plateau by absorbing conveying shock from body weight. However, mod...

tuberculosis (tb), once a disease confined to undeveloped or developing nations is currently in resurgence, which is attributable to pandemic human immunodeficiency virus (hiv) infection and immigration from endemic areas. tuberculous arthritis is difficult to diagnose early because of its atypical insidious clinical manifestations and nonspecific imaging findings. tb is also known as the ‘grea...

background : biomechanical factors are known to be important in knee osteoarthritis (oa) development and progression. this study was designed to determine changes of hamstrings muscle activation, knee adduction moment and ankle rotation angle in two knee osteoarthritis (mild and moderate) and a healthy control group.   methods: 16 females (10 with mild and 6 with moderate medial knee osteoarthr...