International Archives of

Orthopaedic Surgery

Current Issue

 Open Access DOI:10.23937/iaos-2017/1710004

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...

 Open Access DOI:10.23937/iaos-2017/1710003

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...

 Open Access DOI:10.23937/iaos-2017/1710002

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....

 Open Access DOI:10.23937/iaos-2017/1710001

Discussion Concerning Deltoid Ligament and Antero-Medial Capsule Repair in the Surgical Management of Supination External Rotation Ankle Fractures

Wei REN, Masumi MARUO HOLLEDGE, Yong Cheng HU and Jike LU

Article Type: Research Article | First Published: November 01, 2017

To evaluate the importance of ankle deltoid ligament and antero-medial capsule repair in Lauge-Hansen Supination-External Rotation Stage IV (SER IV) ankle fractures....

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