Influence of kinematics of the lumbopelvic complex in hip arthroplasty dislocation: from assessment to recommendations.

Introduction: In total hip arthroplasty (THA), misplacement of the implant can provide instability. Adequate orientation of the acetabular cup is a challenge due to variations in inter-individual anatomy and kinematics of the pelvis in everyday life. The aim of this study was to characterize the kinematic factors influencing the risk of dislocation in order to give recommendations for optimal placement of the cup.

Prospective Evaluation of Spino-Pelvic Parameters with Clinical Correlation in Patients Operated with an Anterior Lumbar Interbody Fusion.

Study Design: Prospective study.

Purpose: The goal of this study was to evaluate the impact of anterior lumbar interbody fusion (ALIF) on L5-S1 level for restitution of distal segmental lordosis and to investigate its consequences on spino-pelvic parameters and the global sagittal balance.

Overview Of Literature: Lumbar surgery must be adapted to the spinal morphology in order to restore an adequate relation between pelvic and spinal parameters and especially to the pelvic incidence.

Percutaneous arthroscopic calcaneal osteosynthesis for displaced intra-articular calcaneal fractures: Systematic review and surgical technique.

Background: The aim of this study was to systematically evaluate the available literature on technique and outcomes of percutaneous arthroscopic calcaneal osteosynthesis for displaced intra-articular calcaneal fractures.

Methods: A systematic review of the literature available in MEDLINE, EMBASE, and the Cochrane Library database was performed, including studies from January 1985 to august 2018. The literature search, data extraction, and quality assessment were conducted by 2 independent reviewers.

Dual mobility device reduces the risk of prosthetic hip instability for patients with degenerated spine: A case-control study.

Introduction: The pelvic incidence is an anatomical and biomechanical pelvic parameter determining spine sagittal morphology and kinematics. Stiffening of the lumbo-pelvic complex, a result of degeneration, affects the functional cup positioning, putting prosthetic hip patients at risk of instability. The anti-dislocation dual mobility (DM) device may be clinically advantageous by reducing the risk of prosthetic instability for older patients with spine ageing.

Esophageal perforation caused by a thoracic pedicle screw.

This grand round raises the risk of a rare complication that can be avoided with the knowledge of the particular anatomy of scoliosis vertebra. Transpedicular screws have been reported to enhance the operative correction in scoliosis surgery. The narrow and inconsistent shape of the thoracic pedicles makes the placement of pedicle screws technically challenging.