BACKGROUND Precise measurement of lateral femoral bowing is important to achieve postoperative lower limb alignment. We aimed to investigate factors that affect the precision of the radiographic lateral femoral bowing (RLFB) angle using three-dimensional (3D) models and whether the angle affects surgery design. METHODS Forty femurs in total were divided into two groups based on their preopera...

An association between lateral patellar dislocation (LPD) and medial collateral ligament injury (MCL) has recently been demonstrated on MRI. The same valgus injury that disrupts the femoral MCL insertion can also cause a simultaneous MPFL tear at its femoral insertion, due to the close anatomical relationship of both ligamentous structures. Valgus laxity due to MCL-deficiency increases the Q-an...

We compared the chevron and the Wilson metatarsal osteotomy for hallux valgus in a prospective randomised trial on 87 feet in 51 patients, reviewed at averages of 5.5 and 38 months after operation. The patients in the chevron group returned to work earlier and mobilised faster, but, at the later review, those in the Wilson group had better functional results and were more satisfied with the app...

OBJECTIVES The development of computer-assisted surgery in total knee arthroplasty continues its search for better accuracy in the spatial positioning of prosthetic components and in achieving the best ideal ligament balance. Many studies have underscored the value of computer-assisted navigation in obtaining precise bone cuts in terms of both orientation and location, which would optimize bone...

Accurate rotation of the femoral component in total knee arthroplasty is important for normal patella tracking, symmetrical patellofemoral joint contact, neutral varus-valgus positioning in flexion, correct rotational alignment of the tibia in extension and the avoidance of anterior femoral notching . Internal rotation of the femoral component causes a shift into valgus alignment with flexion a...

The purpose of this study was to determine the difference between genders in body position during jumping movements while wearing shoes with varying midsoles. Twenty-two apparently healthy female and seven males voluntarily participated in this study. Subjects were current or recently graduated NCAA division III athletes of weight bearing sports and familiar with plyometric jumping. Subjects pe...

Plano-valgus foot is a common three-plane deformity that appears at developmental age. It characterized by the eversion of calcaneus in relation to tibia, pronation and lowering medial longitudinal arch under load. Joint hypermobility significant body weight are believed increase prevalence plano-valgus all ages. There no consensus on proper management flat feet. This disagreement primarily due...

Introduction: Femoral neck fracture at any age always shows relatively higher rate of complications like non union, avascular Necrosis of femoral head, loss of fixation, screw cut-out and delayed secondary osteoarthritis. These fractures in physiologically old age are managed by replacement of femoral head. In Femoral neck fractures in young adult the main aim is to preserve the natural head an...

Femoral lengthening with intramedullary nails can create alterations in the mechanical axis of the limb. This is based on the relationship of the anatomic femur axis to the mechanical femur axis, which is typically 5-9 degrees valgus. We developed trigonometric formulas to calculate the predicted change, using the lengths of the tibia, femur, and whole limb; the amount of lengthening; and the a...

Healthy knee kinematics during dynamic full flexion were evaluated using 3D-to-2D model registration techniques. Continuous knee motions were recorded during full flexion in a lunge from 85° to 150°. Medial and lateral tibiofemoral contacts and femoral internal-external and varus-valgus rotations were analyzed as a function of knee flexion angle. The medial tibiofemoral contact translated anter...