BACKGROUND Multi-level cervical degeneration of the spine is a common clinical pathology that is often repaired by anterior cervical discectomy and fusion (ACDF). The aim of this study was to investigate the kinematics of the cervical spine after hybrid surgery compared with 2-level ACDF. MATERIAL AND METHODS Five freshly frozen, unembalmed whole human cadavers were used including 3 males and...

INTRODUCTION Fracture-dislocation of the thoracic or lumbar spine often results in severe neurologic deficits if dislocation is significant. However, cases of fracture-dislocation of the thoracic or lumbar spine without neurologic deficits are rarely reported in the literature, and the choice of the treatment has been controversial. CASE REPORT Two female patients, aged 27 and 35 years, were ...

OBJECTIVE To evaluate the feasibility, safety and accuracy of pedicle screw placement in the upper thoracic spine using the free-hand technique with the aid of fluoroscopy; to analyze the methods used to verify correct screw positioning intra and postoperatively. METHOD All patients with instability of the cervicothoracic or upper thoracic spine and at least one screw placed in the segment T1...

Accurate and reliable registration of longitudinal spine images is essential for assessment of disease progression and surgical outcome. Implementing a fully automatic and robust registration for clinical use, however, is challenging since standard registration techniques often fail due to poor initial alignment. The main causes of registration failure are the small overlap between scans which ...

CONTEXT When cervical spine injuries are suspected, the cervical spine should be immobilized in a neutral position and neck motion controlled in preparation for transport to an emergency facility. Protocols for emergency transport utilizing common devices (cervical collars) and methods (transfer techniques) during these procedures are not entirely evidence based. EVIDENCE ACQUISITION The medi...

Cervical spine trauma can potentially result in serious neurological injury such as tetraplegia or severe disability. Sub-axial cervical spine trauma (SCST), involving the spine levels of C3 to C7, accounts for the majority of cervical spine injuries, comprising about 65% of fractures and 75% of all dislocations that affects the spine1. In an attempt to improve clinical results and compare trea...

OBJECTIVES To establish the normal values of spino-pelvic alignment and to clarify the effect of age-related changes using large, community-based cohorts. METHODS In this study, data from 1461 participants (466 men, 995 women) were analyzed. On lateral standing radiographs, the following parameters were measured: thoracic kyphosis (TK), lumbar lordosis (LL), pelvic tilt (PT), pelvic incidence...

STUDY DESIGN Prospective study. OBJECTIVE To identify the impact of laminoplasty on range of motion (ROM) and sagittal alignment of the cervical spine. SUMMARY OF BACKGROUND DATA Cervical laminoplasty is an effective procedure decompressing multilevel spinal cord compression. Preoperative lordosis of the cervical spine is a prerequisite for laminoplasty, and maintaining postoperative lordos...

OBJECTIVE To understand the normal lumbar spine in the sagittal plane, and the range of lumbar lordosis. METHODS This study was carried out in the Department of Anatomy, School of Medicine, Duzce University, Duzce, Turkey in the year 2005. We retrospectively reviewed T1-weighed sagittal spin-echo MRIs of the lumbar spine in 413 individuals (188 male, 225 female) aged between 13-82 years, and ...

Musculoskeletal modeling is a well-established method in spine biomechanics and generally employed for investigations concerning both the healthy pathological spine. It commonly involves inverse kinematics optimization of muscle activity provides detailed insight into joint loading. The aim present work was to develop validate procedure automatized generation semi-subject-specific multi-rigid b...