The effects of different repair methods for a posterior root tear of the lateral meniscus on the biomechanics of the knee: a finite element analysis.

Purpose: To explore the impact of different repair methods for a lateral meniscus posterior root tear on the biomechanics of the knee joint using finite element analysis.

Methods: Finite element models of a healthy knee were established on the basis of MRI data from a volunteer using Mimics software, and the validity of the models was tested. The changes in the contact mechanics and kinematics of these finite element models under different repair approaches were then analyzed and compared.

Blood loss of total knee arthroplasty in osteoarthritis: an analysis of influential factors.

Background: Total knee arthroplasty is regarded as the most effective treatment for severe knee osteoarthritis. The influential factors of blood loss in total knee arthroplasty remain controversial. The study aims to explore the influential factors of blood loss in total knee arthroplasty comprehensively.

Application of uncemented Zweymüller hip prosthesis in adult patients with hip osteoarthritis secondary to developmental dysplasia.

Background: Developmental dysplasia encompasses a wide spectrum of hip pathology ranging from a shallow acetabulum to a completely dislocated 'high-riding' hip. It is a common cause of secondary osteoarthritis in young adults and is the underlying diagnosis in up to 48% of patients requiring total hip arthroplasty (THA) for coxarthrosis. The aim of this study was to evaluate efficiency and safety of THA using Zweymüller hip implant in the treatment of severe osteoarthritis secondary to developmental dysplasia of the hip (DDH) in adults.

Developing rigid constraint for the estimation of pose and structure from a single image.

Pose and structure estimation from a single image is a fundamental problem in machine vision and multiple sensor fusion and integration. In this paper we propose using rigid constraints described in different coordinate frames to iteratively estimate structural and camera pose parameters. Using geometric properties of reflected correspondences we put forward a new concept, the reflected pole of a rigid transformation.