Radiological results and clinical patient outcome after implantation of a hydraulic expandable vertebral body replacement following traumatic vertebral fractures in the thoracic and lumbar spine

• Verfasst von: Kreinest, Michael [VerfasserIn]
• Verfasst von: Schmahl, Dorothee [VerfasserIn]
• Verfasst von: Grützner, Paul Alfred [VerfasserIn]
• Verfasst von: Matschke, Stefan [VerfasserIn]
• Titel: Radiological results and clinical patient outcome after implantation of a hydraulic expandable vertebral body replacement following traumatic vertebral fractures in the thoracic and lumbar spine
• Titelzusatz: A 3-year follow-up
• Verf.angabe: Michael Kreinest, Dorothee Schmahl, Paul A. Grützner, Stefan Matschke
• E-Jahr: 2017
• Jahr: April 15, 2017
• Umfang: 8 S.
• Teil: volume:42
• Teil: year:2017
• Teil: number:8
• Teil: pages:E482-E489
• Teil: extent:8
• Fussnoten: Gesehen am 17.04.2018
• Titel Quelle: Enthalten in: Spine
• Ort Quelle: Hagerstown, Md. : Lippincott Williams & Wilkins, 1976
• Jahr Quelle: 2017
• Band/Heft Quelle: 42(2017), 8, Seite E482-E489
• ISSN Quelle: 1528-1159
• DOI: doi:10.1097/BRS.0000000000001862
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Adolescent
• Sach-SW: Adult
• Sach-SW: Aged
• Sach-SW: Aged, 80 and over
• Sach-SW: Female
• Sach-SW: Follow-Up Studies
• Sach-SW: Humans
• Sach-SW: Lumbar Vertebrae
• Sach-SW: Male
• Sach-SW: Middle Aged
• Sach-SW: Prospective Studies
• Sach-SW: Prostheses and Implants
• Sach-SW: Prosthesis Design
• Sach-SW: Prosthesis Implantation
• Sach-SW: Spinal Fractures
• Sach-SW: Spine
• Sach-SW: Thoracic Vertebrae
• Sach-SW: Treatment Outcome
• Sach-SW: Young Adult
• K10plus-PPN: 1572078669

Abstract

STUDY DESIGN: A prospective monocentric study. OBJECTIVE: The aim of the current study was the analysis of patient outcome and radiological results 3 years after implantation of a hydraulic expandable vertebral body replacement (VBR) system.SUMMARY OF BACKGROUND DATA: Around 70% to 90% of all traumatic spinal fractures are located in the thoracic and lumbar spine. Dorso-ventral stabilization is a frequently used procedure in traumatic vertebral body fracture treatment. VBR systems can be used to bridge bony defects. In the current study, a new VBR expanded by water pressure with adjustable endplates is used. METHODS: All patients who suffered a singular traumatic fracture to a thoracic or lumbar vertebral body (Th 5-L 5) in the period from November 2009 to December 2010 and (i) underwent dorsal instrumentation and (ii) afterwards received the implantation of a hydraulic VBR were included in this study. The clinical outcome (visual analogue scale [VAS] spine score, questionnaire) and radiological findings (sagittal angle, implant subsidence, and implant position) 3 years after implantation were analyzed. RESULTS: The follow-up was successful for n=47 patients (follow-up rate: 89%). Most of the patients (n=40) were "generally/very satisfied" with their outcome. The mean rating of the VAS spine score was 65.2±23.1 (range: 20.5-100.0). The analysis of the radiological data showed an average subsidence of the implants of 1.1±1.2mm (range 0.0-5.0mm). After the initial operation, the local sagittal angle remained stable in the follow-up 3 years later both for the thoracic spine and lumbar spine. Furthermore, no change in the implant's position was observed. CONCLUSION: The implantation of a hydraulically expandable VBR allows a permanent stable fixation after traumatic fractures of the thoracic and lumbar spine. LEVEL OF EVIDENCE: 2.