J Bone Joint Surg [Br] 2009;91-B:1459-65. Received 18 March 2009; Accepted after revision 19 June 2009 Valgus high tibial osteotomy for osteoarthritis of the medial compartment of the knee can be performed using medial openingand lateral closing-wedge techniques. The latter have been thought to offer greater initial stability. We measured and compared the stability of openingand closing-wedge o...

BACKGROUND The purpose of this study was to analyze biomechanical properties of a novel wedge locking plate in medial open wedge high tibial osteotomy (OWHTO) in a porcine tibial model. METHODS A uniform 8-mm OWHTO was performed in 12 porcine tibiae. Six of them were subsequently fixed with the plate without a wedge, whereas the other 6 were additionally reinforced with a metal wedge of 8 mm....

Cubitus varus or “gunstock” deformity, a common longterm complication of a supracondylar fracture [1]. Components of cubitus varus deformity are: a) medial angulation, b) medial rotation, c) extension of distal fragment with or without d) medial epicondyle epiphyseal injury leading to delayed growth of medial condyle and cubitus varus deformity [2]. It is generally believed that functional impa...

BACKGROUND Pronated foot posture is associated with many clinical and biomechanical outcomes unique to medial compartment knee osteoarthritis (OA). Though shoe-worn insole treatment, including lateral wedges, is commonly studied in this patient population, their effects on the specific subgroup of people with medial knee OA and concomitant pronated feet are unknown. The purpose of this study wa...

Background: posttraumatic cubitus varus is a common complication after elbow fractures. There are different types of osteotomy and fixation methods used in correction of cubitus varus. Each has its advantages and disadvantages. Patients and method: Ten cases of cubitus varus in young adult treated with lateral closing wedge osteotomy and fixation with posterior Y plate. Preoperative X-ray was t...

Mount St Helens is the most active volcano within the Cascade arc; however, its location is unusual because it lies 50 km west of the main axis of arc volcanism. Subduction zone thermal models indicate that the down-going slab is decoupled from the overriding mantle wedge beneath the forearc, resulting in a cold mantle wedge that is unlikely to generate melt. Consequently, the forearc location ...

PURPOSE The "bean-shaped foot" exhibits forefoot adduction and midfoot supination, which interfere with function because of poor foot placement. The purpose of the study is a retrospective evaluation of patients who underwent a combined double tarsal wedge osteotomy and transcuneiform osteotomy to correct such a deformity. METHODS Twenty-seven children with 35 idiopathic clubfeet were treated...

BACKGROUND There are clear indications for benefits of stance control orthoses compared to locked knee ankle foot orthoses. However, stance control orthoses still have limited function compared with a sound human leg. OBJECTIVES The aim of this study was to evaluate the potential benefits of a microprocessor stance and swing control orthosis compared to stance control orthoses and locked knee...

BACKGROUND Improving ankle-foot orthosis design can best be done by implementing a user-centered approach. OBJECTIVE To provide insight into the ideas of ankle-foot orthosis users with flaccid ankle muscle paresis on the importance of activities and suggestions for an improved ankle-foot orthosis design. STUDY DESIGN A focus-group discussion with eight ankle-foot orthosis users (57 ± 5 year...

We have devised a medial peri-articular osteotomy, the distal tibial oblique osteotomy (DTOO), and have used this technique since 1994 for ankle osteoarthritis of advanced and late stages associated with varus inclination. This report describes the surgical technique and its applicability. DTOO can be used for cases of varus ankle osteoarthritis with a range of the ankle joint movement of at le...