Lapidus arthrodesis in combination with arthrodesis of the first metatarsophalangeal joint-biomechanical cadaver study comparing two methods of fixation.

Aims: To assess the results of a biomechanical test of cadaveric specimens, comparing 2 methods of fixation of modified Lapidus arthrodesis in combination with arthrodesis of the first metatarsophalangeal joint.

Methods: A total of 12 cadaveric specimens were used in the test. Arthrodesis of the first MTP joint was in all patients fixed with a Variable Angle LCP 1st MTP Fusion Plate 2.

Percutaneous versus open pedicle screw fixation for treatment of type A thoracolumbar fractures.

Background: The purpose of this study was to evaluate the effectiveness between percutaneous and open pedicle screw fixation without fusion for treating type A3 and A4 thoracolumbar fractures. Traumatic thoracolumbar burst fracture is a common pathology without a consensus on the best treatment approach. Percutaneous pedicle screw fixation (PPSF) systems have been recently introduced in the treatment of spinal fractures to reduce the adverse effects associated with the conventional open approaches, such as iatrogenic muscle denervation and pain.

Minimally invasive thoracoscopic approach to thoracolumbar junction fractures.

Aims: A retrospective analysis of patients with thoracolumbar junction fractures who underwent video-assisted thoracoscopic surgery via a minimally invasive approach (minithoracotomy) for reconstruction of the anterior spinal column.

Methods: Between 2002 and 2014, a total of 176 patients were treated by this technique. The patients received either posterior stabilization and, at the second stage, the minimally invasive technique via an anterior approach, or the minimally invasive anterior procedure alone.

Biomechanical Testing of Spinal Segment Fixed by Arcofix System on the Swine Spine.

Study Design: An in vitro biomechanical study.

Purpose: To evaluate the mechanical properties of the spinal segment in the intact, injured, and stabilized state after fixation by an Arcofix implant.

Overview Of Literature: Several types of thoracolumbar spine injury necessitates anterior instrumentation.

Biomechanical testing of spinal segment fixed by thoracolumbar spine locking plate on the swine lumbar spine.

Background: The aim of the experiment was to compare the mechanical properties of intact spinal segment with impaired intervertebral disc and impaired intervertebral disc fixed by TSLP (Thoracolumbar Spine Locking Plate).

Methods And Results: Spinal specimens were taken from domestic swine. A total of 8 test mechanical states (intact, impaired and fixed) were modeled and the mechanical properties, expressed by the value of moment of couple necessary to twist the specimen at tensile force F = 200 N and the value of moments necessary for extension straining, were determined.

Complete burst fracture of the fifth lumbar vertebra treated by posterior surgery using expandable cage.

Study Design: This report characterises a 25 year old male patient with a complete burst fracture of the fifth lumbar vertebra with dislocation. He was treated by posterior surgery with transpedicular instrumentation and an expandable cage from the posterior approach.

Objectives: Burst fractures of the fifth lumbar vertebra are extremely rare.

Outcomes after conventional versus computer-navigated anterior cruciate ligament reconstruction.

Purpose: The purpose of this prospective randomized study was to assess biomechanical, radiographic, and functional results after single-bundle anterior cruciate ligament (ACL) reconstruction by use of a navigation system.

Methods: ACL reconstruction was performed by use of the OrthoPilot navigation system (B. Braun-Aesculap, Tuttlingen, Germany) in 40 patients (group 1); and in another 40 patients, surgery was done by the standard manual targeting technique (group 2).

Mosaicplasty for the treatment of femoral head defect after incorrect resorbable screw insertion.

Articular cartilage lesions and osteochondral defects remain a difficult problem for the patient and physician. A variety of procedures and treatments have been proposed to lessen symptoms and restore the articular surface. The knee joint has been the focus of the vast majority of these cartilage restoration procedures.