Relation between radiological assessment and biomechanical stability of lumbar interbody fusion in a large animal model
| Autor: | Marco N. Helder, A.J. van der Veen, T.H. Smit, Ruud A. Bank, B.J. van Royen, R. J. Kroeze |
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| Přispěvatelé: | Orale Celbiologie (ORM, ACTA), Oral Cell Biology, Restoring Organ Function by Means of Regenerative Medicine (REGENERATE), Groningen Kidney Center (GKC), Other departments, Orthopedic Surgery and Sports Medicine, Physics and medical technology, MOVE Research Institute |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
musculoskeletal diseases
STABILIZATION Rotation medicine.medical_treatment Radiography Movement Lumbar vertebrae medicine.disease_cause Weight-bearing Weight-Bearing Lumbar medicine Lumbar spinal fusion Animals Orthopedics and Sports Medicine Animal model IN-VIVO MODEL VITRO Range of Motion Articular Reduction (orthopedic surgery) Orthodontics GOAT MODEL Lumbar Vertebrae business.industry Goats Mechanical testing Anatomy musculoskeletal system Biomechanical Phenomena medicine.anatomical_structure Spinal Fusion PLATE Radiological weapon Spinal fusion Models Animal Motion-segment stability Surgery Female Original Article business Range of motion CAGE DEVICES SPINE Follow-Up Studies |
| Zdroj: | European Spine Journal, 22(12), 2731-2739. Springer Verlag Kroeze, R J, van der Veen, A J, van Royen, B J, Bank, R A, Helder, M N & Smit, T H 2013, ' Relation between radiological assessment and biomechanical stability of lumbar interbody fusion in a large animal model ', European Spine Journal, vol. 22, no. 12, pp. 2731-2739 . https://doi.org/10.1007/s00586-013-3003-2 European Spine Journal, 22(12), 2731-2739. SPRINGER European spine journal, 22(12), 2731-2739. Springer Verlag |
| ISSN: | 0940-6719 |
| DOI: | 10.1007/s00586-013-3003-2 |
| Popis: | PurposeTo relate the progress of vertebral segmental stability after interbody fusion surgery with radiological assessment of spinal fusion.MethodsTwenty goats received double-level interbody fusion and were followed for a period of 3, 6 and 12 months. After killing, interbody fusion was assessed radiographically by two independent observers. Subsequently, the lumbar spines were subjected to four-point bending and rotational deformation, assessed with an optoelectronic 3D movement registration system. In addition, four caprine lumbar spines were analysed in both the native situation and after the insertion of a cage device, as to mimic the direct post-surgical situation. The range of motion (ROM) in flexion/extension, lateral bending and axial rotation was analysed ex vivo using a multi-segment testing system.ResultsSignificant reduction in ROM in the operated segments was already achieved with moderate bone ingrowth in flexion/extension (71 % reduction in ROM) and with only limited bone ingrowth in lateral bending (71 % reduction in ROM) compared to the post-surgical situation. The presence of a sentinel sign always resulted in a stable vertebral segment in both flexion/extension and lateral bending. For axial rotation, the ROM was already limited in both native and cage inserted situations, resulting in non-significant differences for all radiographic scores.DiscussionIn vivo vertebral segment stability, defined as a significant reduction in ROM, is achieved in an early stage of spinal fusion, well before a radiological bony fusion between the vertebrae can be observed. Therefore, plain radiography underestimates vertebral segment stability. |
| Databáze: | OpenAIRE |
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