Optimizing the Anatomic Reduction of Complex Acetabular Fractures: A Technical Enhancement to the Modified Stoppa Approach
J Diranzo Garcia, L Hernandez Ferrando, V Estrems Diaz, V Zarzuela Sanchez, L Castillo Ruiperez, A Vilatela Gomez and A Bru Pomer
Article Type: Technical | First Published: November 12, 2018
In spite of the large variety of different techniques available for their treatment, acetabular fractures still pose a formidable challenge to the orthopedic surgeon, with a close relationship having been observed between degree of reduction, radiological findings and clinical results. The purpose of this manuscript is to introduce a technical enhancement that can be resorted to following exposure of the acetabular dome when using a modified Stoppa approach to facilitate reduction of bone fragme...
Analysis of Principal Stress Projection in Femur with Total Hip Arthroplasty using CT-image Based Finite Element Method
Kosei Fukuoka and Mitsugu Todo
Article Type: Original Research | First Published: September 20, 2018
The research demonstrates a novel three-dimensional finite element analysis to analyze biomechanical changes in a femur with implant. The method uses principal stress projections to determine trabeculae trajectories in the femur. Visual comparisons of the projections of the femurs show areas of cortical and cancellous changes due to changes in tensile and compressive stresses, revealing areas of stress shielding. The method also includes a bone remodeling algorithm to simulate bone adaptation. I...
Transforming Growth Factor-Beta (TGF-B) Regulates Nerve Growth Factor and Cyclooxygenase-2 Expression in Subsynovial Connective Tissue in Patients with Carpal Tunnel Syndrome
Mitsufumi Nakawaki, Kentaro Uchida, Kenji Onuma, Koji Sukegawa, Toshihide Matsumoto, Gen Inoue, Hiroyuki Sekiguchi and Masashi Takaso
Article Type: Original Article | First Published: September 19, 2018
Carpal tunnel syndrome (CTS) is a common neuropathy encountered in orthopedics. It results from compression of the distal median nerve (MN) within the carpal tunnel. Characteristic complaints of CTS are numbness, paresthesia, and pain in the hand and fingers, often exacerbated at night. This characteristic MN compression results in various degrees of disability. In recent years, elucidation of the pathological condition has progressed; however, the mechanism is still unknown....