Local osteo-enhancement of osteoporotic vertebra with a triphasic bone implant material increases strength—a biomechanical study
| Autor: | Matthias Trost, Werner Schmoelz, Doris Wimmer, Romed Hörmann, Sönke Percy Frey, Tobias L. Schulte |
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| Rok vydání: | 2020 |
| Předmět: |
musculoskeletal diseases
Calcium Phosphates medicine.medical_specialty medicine.medical_treatment Trauma Surgery Osteoporosis 030209 endocrinology & metabolism Calcium Sulfate Weight-Bearing 03 medical and health sciences 0302 clinical medicine Vertebral augmentation medicine Humans Orthopedics and Sports Medicine Displacement (orthopedic surgery) Saline business.industry Bone implant Soft tissue General Medicine musculoskeletal system medicine.disease Biomechanical study Spine Biomechanical Phenomena Vertebra medicine.anatomical_structure Bone Substitutes Orthopedic surgery Surgery Triphasic bone implant material Cadaveric spasm Nuclear medicine business 030217 neurology & neurosurgery |
| Zdroj: | Archives of Orthopaedic and Trauma Surgery |
| ISSN: | 1434-3916 0936-8051 |
| DOI: | 10.1007/s00402-020-03382-x |
| Popis: | Purpose The aim of this study was to assess the biomechanical properties of intact vertebra augmented using a local osteo-enhancement procedure to inject a triphasic calcium sulfate/calcium phosphate implant material. Methods Twenty-one fresh frozen human cadaver vertebra (Th11–L2) were randomized into three groups: treatment, sham, and control (n = 7 each). Treatment included vertebral body access, saline lavage to displace soft tissue and marrow elements, and injection of the implant material to fill approximately 20% of the vertebral body by volume. The sham group included all treatment steps, but without injection of the implant material. The control group consisted of untreated intact osteoporotic vertebra. Load at failure and displacement at failure for each of the three groups were measured in axial compression loading. Results The mean failure load of treated vertebra (4118 N) was significantly higher than either control (2841 N) or sham (2186 N) vertebra (p p Conclusions This biomechanical study shows that a local osteo-enhancement procedure using a triphasic implant material significantly increases the load at failure and displacement at failure in cadaveric osteoporotic vertebra. |
| Databáze: | OpenAIRE |
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