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A New CT Method for Assessing 3D Movements in Lumbar Facet Joints and Vertebrae in Patients before and after TDR
Karolinska Institutet at Karolinska University Hospital Solna. (Department of Molecular Medicine and Surgery, Section of Orthopaedics and Sports Medicine)
Stockholm Spine Center, Löwenströmska Hospital.ORCID iD: 0000-0003-3090-6690
New York University, Department of Radiology. (Nuclear Medicine)ORCID iD: 0000-0002-2442-1622
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).ORCID iD: 0000-0002-6066-746X
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2015 (English)In: BioMed Research International, ISSN 2314-6133, 2314-6141, Vol. 2015, 1-9 p., 260703Article in journal (Refereed) Published
Abstract [en]

This study describes a 3D-CT method for analyzing facet joint motion and vertebral rotation in the lumbar spine after TDR. Ten patients were examined before and then three years after surgery, each time with two CT scans: provoked flexion and provoked extension. After 3D registration, the facet joint 3D translation and segmental vertebral 3D rotation were analyzed at the operated level (L5-S1) and adjacent level (L4-L5). Pain was evaluated using VAS. The median (±SD) 3D movement in the operated level for the left facet joint was 3.2 mm (±1.9 mm) before and 3.5 mm (±1.7 mm) after surgery and for the right facet joint was 3.0 mm (±1.0 mm) before and 3.6 mm (±1.4 mm) after surgery. The median vertebral rotation in the sagittal plane at the operated level was 5.4° (±2.3°) before surgery and 6.8° (±1.7°) after surgery and in the adjacent level was 7.7° (±4.0°) before and 9.2° (±2.7°) after surgery. The median VAS was reduced from 6 (range 5–8) to 3 (range 2–8) in extension and from 4 (range 2–6) to 2 (range 1–3) in flexion.

Place, publisher, year, edition, pages
2015. Vol. 2015, 1-9 p., 260703
National Category
Orthopedics Radiology, Nuclear Medicine and Medical Imaging
URN: urn:nbn:se:kth:diva-176268DOI: 10.1155/2015/260703ScopusID: 2-s2.0-84947475183OAI: diva2:866222

QC 20151102

Available from: 2015-11-02 Created: 2015-11-02 Last updated: 2015-11-02Bibliographically approved

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Berg, SvanteNoz, Marilyn E.Maguire Jr., Gerald Q.Zeleznik, Michael P.Weidenhielm, Lars
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Radio Systems Laboratory (RS Lab)
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