Biomedical subjects

J Thometz

Publications and source records attributed to J Thometz.

4 recordsLinked to original sources

PubMed2006

Changes of three-dimensional back contour following posterior fusion for idiopathic scoliosis.

Twenty-nine patients received both pre and post operative Quantec evaluation (Raster stereophotograph) and spinal radiography. Mean age at surgery was 13.9 years and mean age at follow-up was 15.9 year old. Patients have been followed at least 6 months post-surgically, ranging from 6 months to 5 years. The study found that except for an improvement of Cobb angles (from 49.64 degrees to 24.81 degrees in the thoracic; from 56.08 degrees to 20.08 degrees in the thoracolumbar), corrections of rib hump (from 16.88 to 11.40 vs. normal range 0 to 10.) and truncal asymmetry (from 36.97 to 21.92 vs. normal range 5 to 20) are critical factors in successful spinal surgery.

Adolescent↗

PubMed2000

Tarsal coalition.

This article reviews the pathoanatomy, pathomechanics, and clinical features of tarsal coalition and examines techniques for proper radiographic evaluations. The relative merits of computed tomography and MR imaging also are presented. Finally, current indications and techniques for surgical correction are discussed.

Foot Deformities, Congenital↗

PubMed1989

The effect on gait of lengthening of the medial hamstrings in cerebral palsy.

The purpose of this study was to analyze the effect of lengthening of the medial hamstrings on the gait of patients who had spastic cerebral palsy. Thirty-one patients had preoperative and postoperative gait analyses. Standard parameters, such as velocity, cadence, and stride length, were evaluated, as were motion graphs of the hip, knee, and ankle. There was little difference between the preoperative and postoperative mean values for velocity, cadence, and stride length, which were expressed as percentages of normal for the patient's age. The contours of the postoperative motion graphs of the knees changed very little compared with those of the preoperative graphs; when a graph showed restricted motion preoperatively, it did so postoperatively. Although extension of the knee in stance phase improved postoperatively, the improvement was accompanied by decreased flexion of the knee during swing phase. When spasticity of both the hamstrings and the quadriceps was noted on the preoperative electromyogram, motion of the knee in the sagittal plane was markedly restricted.

Adolescent↗

PubMedDate not supplied

Threaded K-wire spinous process fixation of the axis for modified Gallie fusion in children and adolescents.

A retrospective analysis of a technique for achieving atlantoaxial arthrodesis was performed. Fourteen patients underwent a modified Gallie technique, and all patients achieved successful arthrodesis with minimal restriction in rotation of the neck postoperatively. No patients showed neurologic deterioration. Fixation of a threaded K-wire to the spinous process of the axis improved the stability of the wiring technique, and we have been very successful in achieving atlantoaxial arthrodesis in the pediatric population.

Adolescent↗