Computational fluid dynamics is implemented to investigate the influence of the wheel contact patch on the global car aerodynamics. Two main aspects of the problem are the contact step and patch shape. Three important parameters: step height, cut angle, and tire tread shape are taken into consideration. For validations of the numerical results, the experimental data are also considered. The obt...

BACKGROUND Incomplete sesamoid reduction is a potential risk factor for the recurrence of hallux valgus. The purpose of this study was to radiologically investigate changes in sesamoid position after chevron osteotomy and the open lateral soft tissue procedure. METHODS Sixty-eight feet that underwent operative correction for hallux valgus deformity were reviewed consecutively. The hallux valg...

BACKGROUND Increased knee valgus predicts the risk of anterior cruciate ligament (ACL) injury, particularly in women. Reducing injury rates thus relies on detecting and continually evaluating people with relatively large valgus motions. OBJECTIVES To examine the potential of a two dimensional (2D) video analysis method for screening for excessive valgus. METHODS Ten female and 10 male Natio...

BACKGROUND Total knee arthroplasty (TKA) using a cemented technique has been recommended in patients with rheumatoid arthritis owing to the initial stability of the fixation and long-term durability of the components; however, similar long-term follow-up results have been reported in patients who have undergone cementless TKA. The purpose of this study was to evaluate the radiologic and clinica...

It is posted here for your personal use. No further distribution is permitted. Technique and knee loads in sidestep cutting 2 Abstract Purpose: To identify the effect of modifying sidestep cutting technique on knee loads and predict what impact such change would have on the risk of non-contact anterior cruciate ligament injury. Methods: A force platform and motion analysis system were used to r...

INTRODUCTION The hip fractures appear to be a real epidemic problem, especially in the western world, due primarily to higher average age. The social and economical impact is considerable with a continue social and health costs up-rising. The female-male ratio is approximately 8:1. PURPOSE The purpose of this report is to present a system of osteosynthesis for fractures of the lateral femoral...

The purpose of this study was to evaluate the radiographic and clinical outcomes of isolated talonavicular arthrodesis in the treatment of the flexible pes valgus foot type. Retrospectively, 51 consecutive isolated talonavicular arthrodeses in 41 patients were evaluated. The mean patient age was 47 (range 9 to 72) years, and the mean follow-up duration was 43.3 (range 11 to 113) months. The mea...

PURPOSE To evaluate the minimum 5-year mid-term clinical and radiological results of minimally invasive surgery total knee arthroplasty (MIS-TKA) using a mini-keel modular tibia component. MATERIALS AND METHODS We retrospectively evaluated 254 patients (361 cases) who underwent MIS-TKA between 2005 and 2006. The latest clinical and radiological assessments were done in 168 cases that had been...