Patients with Legg-Calvé-Perthes disease (LCP) often exhibit relative overgrowth of the greater trochanter and shortening of the femoral neck. Biomechanically, this corresponds to a shorter lever arm and a decreased muscle tension which may result in a Trendelenburg gait and pelvic instability. This is a retrospective study of 31 patients (32 hips) with LCP disease and relative overgrowth of th...

We present a new method of trochanter stabilisation designed for use in difficult revision hip arthroplasties. A fixator is secured to the metaphysis of the femur, and its two malleable prongs encompass the trochanter fragment and stabilise it using the tension band principle. The fixator is versatile, simple to apply and has better mechanical properties than any technique using wires. We revie...

Orrorin tugenensis (Kenya, ca. 6 Ma) is one of the earliest putative hominins. Its proximal femur, BAR 1002'00, was originally described as being very human-like, although later multivariate analyses showed an australopith pattern. However, some of its traits (for example, laterally protruding greater trochanter, medially oriented lesser trochanter and presence of third trochanter) are also pre...

the current study which is an expacto one,has been carried out with the purpose of comparing the bone mineral density(bmd) of menopause women athletes who were professional at weight bearing sports and non-weight bearing sports.the participants were all menopause women athletes of tehran that 20 of them were aimfully put in two groups: the weight bearing sports group(handball and basketball; n=...

STUDY DESIGN A new surgical technique of cervical osteotomy to correct an extension deformity of the cervical spine is described, and a case is reported. OBJECTIVES To emphasize the disparate effect of osteotomy level on sagittal balance and gaze angle in surgical correction of global kyphotic deformity, and to describe a new surgical technique. SUMMARY OF BACKGROUND DATA Previous reports o...

UNLABELLED BACKGROUND Achieving precise implant alignment is crucial for producing good outcomes after total knee arthroplasty (TKA). We introduce a simple method for confirming the accuracy of tibial osteotomy during TKA. FINDINGS Two metallic markers were placed on the skin 20 cm apart, one on the tibial tuberosity and other on the tibial crest, points that are easily identified and palp...

BACKGROUND Edema and ecchymosis are common complications of rhinoplasty. Modifications to osteotomy may reduce edema and ecchymosis and ameliorate postoperative discomfort in patients who undergo rhinoplasty. OBJECTIVES The authors performed osteotomy with conventional instruments or with an ultrasonic device and compared these methods with respect to the severities of ecchymosis and edema in...

BACKGROUND Supramalleolar osteotomy (SMOT) is a well-accepted treatment method for mid-stage varus ankle osteoarthritis (OA). However, few studies have examined the role of fibular osteotomy in SMOT. The objective of the current study was to compare the biomechanical and clinical outcomes of SMOT with and without fibular osteotomy. METHODS Eight cadaveric lower legs with 10° varus/valgus SMOT...

Despite the fact that common surgical techniques for the treatment of genu varum usually correct the malalignment in the affected knee, these methods have significant complications and cause problems in the long term. Retro-tubercle opening-wedge high tibial osteotomy is among the newer techniques for the treatment of genu varum. The goal of this study was to compare the results of retro-tuberc...

OBJECTIVES The aim of this study was to investigate the displacement and stress distribution during surgically assisted rapid maxillary expansion under different surgical conditions with tooth- and bone-borne devices. MATERIALS AND METHODS Three-dimensional (3D) finite element model of a maxilla was constructed and an expansion force of 100 N was applied to the left and right molars and premo...