BACKGROUND To explore the diagnostic value of sagittal measurement of thoracic inlet parameters for degenerative cervical spondylotic myelopathy (DCSM). MATERIAL AND METHODS Sixty patients with DCSM (study group) and the same number of normal subjects (control group) were initially enrolled in the study. All data from X-ray in the standing position and computed tomography (CT) in the supine pos...

Wear remains a significant problem limiting the lifespan of total knee replacements (TKRs). Though increased conformity between TKR components has the potential to decrease wear, the optimal amount and planes of conformity have not been investigated. Furthermore, differing conformities in the medial and lateral compartments may provide designers the opportunity to address both wear and kinemati...

Computational models are valuable tools for studying tissue-level mechanisms of traumatic brain injury, but to produce more accurate estimates of tissue deformation, these models must be validated against experimental data. In this study, we present in situ measurements of brain-skull displacement in the neonatal piglet head (n = 3) at the sagittal midline during six rapid non-impact rotations ...

OBJECTIVE To determine the range of positions of the fetal head in which a three-dimensional (3D) volume is acquired for subsequent successful assessment of the frontomaxillary facial (FMF) angle. METHOD We obtained 3D volumes of the fetal head at 11 + 0 to 13 + 6 weeks. The volumes were acquired with the head in different positions and reconstructed to obtain a mid-sagittal section and demon...

Main outcome measures Variables that were measured in this study were as follows: 1) Inclination of STJ AoR in the sagittal plane measured by radiographic images (Median MDXP-40 Inc, Korea) of the foot in the sagittal plane. In order to collect radiological images of the foot, subjects stood with a tandem position and the STJ was placed in neutral position. Sagittal plane inclination of the STJ...

REASONS FOR PERFORMING STUDY To improve understanding of the internal structure of the proximal phalanx (P1), response of the bone to load and possible relation to the pathogenesis of fractures in P1. OBJECTIVES To model the P1 and replicate the loads experienced by the bone in stance, walk, trot and gallop using finite element analysis. METHODS The geometry of the P1 was captured using mic...

BACKGROUND This cadaveric study aimed to demonstrate variation of the anterior cruciate ligament (ACL) tibial attachment in the sagittal plane, and to analyze the radiographic landmarks which predict the sagittal location of the ACL tibial attachment. METHODS In 20 cadaveric knees, native ACLs were removed and the centers of the ACL tibial and femoral attachments were marked with metal pins. ...

INTRODUCTION Little data is available on the relationship between sagittal spinopelvic parameters and health related quality of life (HRQOL) in osteoporotic patients. The aim of this study was to identify relationships between spinopelvic parameters and HRQOL in osteoporosis. MATERIAL AND METHODS The patient and control groups comprised 138 osteoporotic patients and 40 controls. All underwent...

Purpose: Complications from RA can involve the thoracolumbar spine and cause severe spine instability and sagittal deformity. We present a surgical strategy to restore sagittal balance in a patient with chronic rheumatoid arthritis. Methods: A retrospective chart review was performed. Results: We report the case of a 53-year-old woman with RA and severe back pain. She had dynamic instability of...

OBJECTIVE Restoration of lumbar lordosis is a critical factor in long-term success after lumbar fusions. Transforaminal lumbar interbody fusion (TLIF) is a popular surgical technique in the lumbar spine, but few data exist on change in spinal alignment after the procedure. METHODS Eighty patients who underwent TLIF surgery were retrospectively reviewed (minimum follow-up period, 2 years). Sta...