Track topics on Twitter Track topics that are important to you
The study is designed to evaluate the use of electromagnetic tracking in femoral derotation osteotomies. The goal is to raise the precision of the surgical procedure in order to improve the outcome in short- and long term. The electromagnetic tracking system is evaluated against a base line CT scan serving as reference standard.
Internal rotation gait is a common deformity in children, especially in those with spastic diplegia. The treatment includes soft tissue and bony correction. Especially the bony procedures e.g. femoral derotation osteotomies have proven to be effective both in short term and long term evaluation. Nonetheless there is still a relevant number of patients that suffer from over- or under-correction and recurrence over time. The reasons are diverse and include false measurement of the derotation in OR.
The study now evaluates electromagnetic tracking for femoral derotation to improve these results.
The patients are recruited from the outpatients department and included if they meet the criteria.
A baseline rotational CT scan and a 3-D-gait analysis are performed and the derotation measured with the EMT system in OR. The results of the measurement is invisible and unknown to the surgeon as the system unit is controlled by a technician.
The surgical procedure follows standard rules and does not need alterations because of the study.
After the operation a second rotational CT scan is performed and the derotation precisely evaluated by two raters and later compared to the results of the electromagnetic tracking system.
Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Diagnostic
Interna Rotation Gait
Electromagnetic tracking unit in femoral derotation surgery
Orthopaedic Department, University of Heidelberg
Published on BioPortfolio: 2016-11-30T15:45:25-0500
RATIONALE: Electromagnetic device tracking may help in planning diagnostic procedures and cancer treatment. PURPOSE: This clinical trial is studying electromagnetic device tracking to see...
The purpose of this study is to observe the axial IOL rotation after surgery with a capsular tension ring (CTR) and a MC6125 AS IOL. At the end of surgery the orientation of the IOL is do...
The investigators aim to demonstrate the ability to accurately measure and restore leg length, offset, and center of rotation during a total hip replacement through a new technique that us...
Patellar subluxation is a common disorder that may cause patellofemoral pain syndrome. The efficiency of patellar taping in the treatment of patellofemoral pain syndrome has been reported ...
Deep Brain Stimulation (DBS) is an effective treatment option for individuals with debilitating tremors that do not respond to medical therapy. However, severe tremors, particularly those ...
Internal rotation gait constitutes a complex gait disorder in bilateral spastic cerebral palsy (BSCP) including static torsional and dynamic components resulting in lever arm dysfunction. Although fem...
To better define radiographic parameters for a true anterior-posterior (AP) knee radiograph after total knee arthroplasty, we cataloged the radiographic appearance of 7 different designs of commercial...
Current methods of measuring vertebral rotation by plain radiographs rely on anatomic landmarks that are not present in the postoperative spine or require advanced imaging. Furthermore, there are few ...
Excessive femoral anteversion is a developmental condition that can become symptomatic into adolescence and manifest as anterior knee pain, tripping, and or problems with sports. Femoral derotational ...
This study investigated the degree of acetabular and femoral remodeling after isolated varus derotation osteotomy (VDRO) in children with cerebral palsy. This retrospective review investigated 56 chil...
A groin hernia occurring inferior to the inguinal ligament and medial to the FEMORAL VEIN and FEMORAL ARTERY. The femoral hernia sac has a small neck but may enlarge considerably when it enters the subcutaneous tissue of the thigh. It is caused by defects in the ABDOMINAL WALL.
The rotation of linearly polarized light as it passes through various media.
Intraoperative computer-assisted 3D navigation and guidance system generally used in neurosurgery for tracking surgical tools and localize them with respect to the patient's 3D anatomy. The pre-operative diagnostic scan is used as a reference and is transferred onto the operative field during surgery.
Disease involving the femoral nerve. The femoral nerve may be injured by ISCHEMIA (e.g., in association with DIABETIC NEUROPATHIES), nerve compression, trauma, COLLAGEN DISEASES, and other disease processes. Clinical features include MUSCLE WEAKNESS or PARALYSIS of hip flexion and knee extension, ATROPHY of the QUADRICEPS MUSCLE, reduced or absent patellar reflex, and impaired sensation over the anterior and medial thigh.
Tongues of skin and subcutaneous tissue, sometimes including muscle, cut away from the underlying parts but often still attached at one end. They retain their own microvasculature also transferred to the new site. They are used in plastic surgery for filling a defect in a neighboring region. The concept includes pedicled flaps, rotation flaps, tube flaps, etc.