Paraganglioma in the cauda equina. A case report.

Paraganglioma of the cauda equina is rare, and diagnosis is difficult. A 47-year-old woman presented with backache, with a 2-year history of pain radiating in her right lower extremity. Initial neurologic examination revealed mild hypaesthesia in the L4 dermatome on both sides.

The effect of platelet rich plasma from bone marrow aspirate with added bone morphogenetic protein-2 on the Achilles tendon-bone junction in rabbits.

Background: To determine if exogenously injected bone marrow derived platelet-rich plasma (PRP) plus bone morphogenetic protein (BMP)-2 could accelerate the healing of bone-tendon junction injuries and increase the junction holding strength during the early regeneration period.

Methods: A direct injury model of the bone-tendon junction was made using an Achilles tendon-calcaneus bone junction in a rabbit. In the PRP/BMP-2/fibrin group, 0.

Correlation between facial asymmetry, shoulder imbalance, and adolescent idiopathic scoliosis.

We conducted a prospective cross-sectional study to examine the correlation between facial asymmetry, shoulder imbalance, and adolescent idiopathic scoliosis. Sixty-nine adolescent idiopathic scoliosis patients and 29 healthy volunteers were enrolled in this study. All patients underwent whole-spine standing anteroposterior radiographs and frontal cephalograms.

Changes in level of the conus after corrective surgery for scoliosis: MRI-based preliminary study in 31 patients.

Background: Detection of postoperative spinal cord level change can provide basic information about the spinal cord status, and electrophysiological studies regarding this point should be conducted in the future.

Methods: To determine the changes in the spinal cord level postoperatively and the possible associated factors, we prospectively studied 31 patients with scoliosis. All the patients underwent correction and posterior fusion using pedicle screws and rods between January 2008 and March 2009.

Centroid method: reliable method to determine the coronal curvature of scoliosis: a case control study comparing with the Cobb method.

Study Design: Observational study with three examiners.

Objective: To compare the reliability of the Cobb and centroid methods.

Summary Of Background Data: The Cobb method is considered to be the gold standard in scoliosis measurement despite its low reliability.

False negative and positive motor evoked potentials in one patient: is single motor evoked potential monitoring reliable method? A case report and literature review.

Study Design: A case report and literature review.

Objective: To report a false negative and delayed positive motor-evoked potential (MEP) in 1 patient.

Summary Of Background Data: An unreliable MEP can result in fatal outcomes because surgeons have recently begun to depend on the MEP for intraoperative decision-making.

Reliability analysis for radiographic measures of lumbar lordosis in adult scoliosis: a case-control study comparing 6 methods.

Several methods are used to measure lumbar lordosis. In adult scoliosis patients, the measurement is difficult due to degenerative changes in the vertebral endplate as well as the coronal and sagittal deformity. We did the observational study with three examiners to determine the reliability of six methods for measuring the global lumbar lordosis in adult scoliosis patients.

Correlation of pelvic orientation with adult scoliosis.

Study Design: Prospective analysis of elderly volunteers with adult scoliosis.

Objectives: To analyze the correlation between the sagittal pelvic parameters and adult scoliosis.

Summary Of Background Data: There are little data on the relationship between the sagittal pelvic parameters and adult scoliosis.

Transtrochanteric rotational osteotomy for nontraumatic osteonecrosis of the femoral head in young adults.

Unlabelled: Transtrochanteric rotational osteotomy (TRO) is a controversial procedure with reported inconsistent results. We reviewed 50 patients (60 hips) who underwent this procedure for extensive osteonecrosis of the femoral head, focusing on varization to determine its effectiveness as a head-preserving procedure in young adults. The mean age of the patients was 28 years (range, 18-46 years).

Validation of a simple radiographic method to determine variations in pelvic and acetabular cup sagittal plane alignment after total hip arthroplasty.

Background And Purpose: Orientation of acetabular component, influenced by pelvic tilt, body position, and individual variations affects the outcome following total hip arthroplasty (THA). Currently available methods of evaluation are either imprecise or require advanced image processing. We analyzed intersubject and intrasubject variability of pelvic tilt, measured by sagittal sacral tilt (ST) and its relationship with acetabular component tilt (AT) by using a simple method based on standard radiographs.

Upper cervical spine instability in pseudoachondroplasia.

Background: Pseudoachondroplasia (PSACH) is a rare autosomal dominant skeletal dysplasia associated with os odontoideum and atlantoaxial instability. This study aims to define the characteristics of upper cervical spine instability in patients with PSACH and analyze the relation between the incidence of upper cervical instability and os odontoideum.

Methods: Fifteen patients (10 women and 5 men) with PSACH of Korean ethnicity with mean age of 23.