19 Harley St, London, W1G 9QJ, UK

Angle measurement reproducibility using EOS three-dimensional reconstructions in adolescent idiopathic scoliosis treated by posterior instrumentation

STUDY DESIGN: A reproducibility study was conducted in preoperative and postoperative three-dimensional (3D) measurements for patients operated for adolescent idiopathic scoliosis (AIS). OBJECTIVE: To assess the reliability of preoperative and postoperative 3D reconstructions using EOS in patients operated for AIS. SUMMARY OF BACKGROUND DATA: No prior reliability study of 3D measurements has been performed in the literature for severe scoliosis and for operated patients. METHODS: This series included 24 patients (62 degrees +/- 11) operated for Lenke 1 or 2 AIS, using either all-pedicle screw constructs (group 1) or hybrid constructs, with universal clamps at thoracic levels (group 2). All patients underwent low-dose standing biplanar radiographs, pre- and postoperatively. Three operators performed the 3D reconstruction process two times preoperatively and two times postoperatively (total 288 reconstructions). Intraoperator repeatability and interoperator reproducibility were calculated and compared between groups. RESULTS: The preoperative reproducibility was between 4 degrees and 6.5 degrees for parameters dedicated to scoliosis (Cobb and apical vertebral rotation), between 4 degrees and 7 degrees for kyphosis and lordosis values, and between 1 degrees and 5 degrees for pelvic measurements. The postoperative reproducibility was between 5 degrees and 8 degrees for values of kyphosis and lordosis, between 1 degrees and 5.5 degrees for pelvic parameters, and between 6.5 degrees and 10.5 degrees for the scoliotic parameters. The reproducibility of the scoliotic parameters was slightly better in the hybrid construct group, but the difference was not significant (P = 0.8). No difference was found between groups for the other parameters. CONCLUSION: 3D postoperative reconstructions are as reproducible as preoperative ones. The reproducibility is not influenced by the type of implant used for correction. Mean difference between operator was higher than previously reported for the apical rotation measurement, but this difference can be explained by the severity of the curves and the lower visibility of the anatomical landmarks due to the implants

Keywords : Adolescent,diagnostic imaging,Female,France,Humans,Imaging,Three-Dimensional,instrumentation,Internal Fixators,Kyphosis,Lordosis,Male,methods,Patients,Radiography,Rotation,Scoliosis,Spinal Fusion,Spine,standards,surgery,Time,Universities,, Measurement,Reproducibility,Using,Eos,3d, massage for back pain near me

Date of Publication : 2011 Sep 15

Authors : Ilharreborde B;Steffen JS;Nectoux E;Vital JM;Mazda K;Skalli W;Obeid I;

Organisation : Department of Pediatric Orthopaedics, Robert Debre Hospital, Paris 7 University, France. i_brice@hotmail.com

Journal of Publication : Spine (Phila Pa 1976 )

Pubmed Link : https://www.ncbi.nlm.nih.gov/pubmed/21697768

The London Spine Unit : Harley Street UK. Specialists in Cutting Edge Technologies for Spinal Surgery

Make an Appointment 

Trustpilot Reviews
Doctify Reviews
Top Doctor Reviews

Angle measurement reproducibility using EOS 3D reconstructions in adolescent idiopathic scoliosis treated by posterior instrumentation | Max physiotherapy

What our patients say ...

Consultant Spine Surgeon
Consultant Spine Surgeon
Consultant Spine Surgeon

This surgical technique consists of a percutaneous approach for the treatment of small to medium size hernias of the intervertebral disc by laser energy. The main objective is to reduce the intradiscal pressure in the nucleus pulposus

Laser Disc Surgery can be performed under local anaesthetic as a day case at our centre on the prestigious Harley Street.
What is London spine unit and How it Works

The London Spine Unit was established in 2005 and has successfully treated over 5000 patients. All conditions are treated.

treatment of all spinal disorders

The London Spine Unit specialises in Minimally Invasive Treatments allowing rapid recovery and return to normal function

Trusted by patients worldwide

The London Spine Unit provides the highest quality care to all patients and has VIP services for those seeking exceptional services

If you have any emergency Doctor’s need, simply call our 24 hour emergency

Your personal case manager will ensure that you receive the best possible care.

Call Now 

+44 844 589 2020
+44 203 973 8810