Learn More
BACKGROUND Mechanically activated intramedullary lengthening nails are advantageous over external fixator. However, difficulties with the control of the distraction rate are the main drawbacks, which may in turn cause insufficient bone regenerate. PATIENTS AND METHODS A total of 57 lengthening procedures were performed using intramedullary skeletal(More)
PURPOSE The effect of the rotational alignment of lower extremities on the tibiofemoral contact mechanics is not known. This study was designed to measure the contact area and pressure within medial and lateral tibiofemoral compartments following controlled serial rotational deformities through femoral and tibial shafts. METHODS Eight lower extremities of(More)
Unstable pelvic injuries in young children with an immature pelvis have different modes of failure from those in adolescents and adults. We describe the pathoanatomy of unstable pelvic injuries in these children, and the incidence of associated avulsion of the iliac apophysis and fracture of the ipsilateral fifth lumbar transverse process (L5-TP). We(More)
BACKGROUND Control of distraction rate with an intramedullary skeletal kinetic distractor (ISKD) may be problematic and a high distraction rate may result in insufficient bone regenerate. QUESTIONS/PURPOSES Are distraction problems preventable when using the ISKD, and what are the risk factors for and radiologic types of insufficient bone regenerate(More)
OBJECTIVE Various methods have been described to define the femoral neck and distal tibial axes based on a single CT image. The most popular are the Hernandez and Weiner methods for defining the femoral neck axis and the Jend, Ulm, and bimalleolar methods for defining the distal tibial axis. The purpose of this study was to calculate the intra- and(More)
INTRODUCTION Accurate intraoperative assessment of lower limb alignment is crucial for the treatment of long bone fractures, implantation of knee arthroplasties and correction of deformities. PURPOSE The aim of this study is to present a new technique for the intraoperative analysis of the mechanical axis. METHODS The axis board is placed under the(More)
In this report, we describe 6 children with osteogenesis imperfecta with unusual stress femoral fractures. All children were on long-term cyclic pamidronate treatment. All fractures occurred without trauma or with minimal trauma and were located in the subtrochanteric or the diaphyseal regions of the femur over preexisting intramedullary rods. These(More)
INTRODUCTION Callus distraction of the femur using an intramedullary distractor has several advantages over the use of external fixators. However, difficulty in controlling the mechanical axis during lengthening may cause deformities and knee osteoarthritis. Purpose of the study is to answer the following questions: (1) is lengthening with an intramedullary(More)
Valgus producing high tibial osteotomy (HTO) is an effective treatment option for medial compartment osteoarthrosis with varus deformity in young patients. The most common complications of conventional high tibial osteotomy techniques are related to accuracy of correction. Major angle correction of more than 15 degrees with an osteotomy proximal to the(More)
BACKGROUND The long-term outcomes following femoral and tibial segment transports are not well documented. Purpose of the study is to compare the complication rates and life quality scores of femoral and tibial transports in order to find what are the complication rates of femoral and tibial monorail bone transports and if they are different? METHODS We(More)