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Aim: The optimal preparation conditions of Salmon decalcified bone matrix (S-DBM) were explored, and the properties of S-DBM bone particles and bone powder were studied respectively. The therapeutic effect of S-DBM on tibial defect in female Sprague Dawley (SD) rats was preliminarily verified.
Methods: This study assessed the structural and functional similarities of Salmon bone DBM (S-DBM). The biocompatibility assessment was conducted using both in vivo and in vitro experiments, establishing an animal model featuring tibial defects in rats and on the L929 cell line, respectively. The control group, bovine DBM (bDBM), was compared to the S-DBM-treated tibial defect rats. Imaging and histology were used to study implant material changes, defect healing, osteoinductive repair, and degradation.
Results: The findings of our study indicate that S-DBM exhibits favorable repairing effects on bone defects, along with desirable physicochemical characteristics, safety, and osteogenic activity.
Conclusions: The S-DBM holds significant potential as a medical biomaterial for treating bone defects, effectively fulfilling the clinical demands for materials used in bone tissue repair engineering.
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http://dx.doi.org/10.1177/03913988241269498 | DOI Listing |
Eur J Orthop Surg Traumatol
September 2025
University of Leeds, Leeds, United Kingdom.
Introduction: This study aimed to evaluate the health perception of quality of life and function in patients with segmental bone defects (SBD) of the femur or tibia treated with the Induced Membrane Technique (IMT) and achieved bone healing and infection control.
Methods: This cross-sectional cohort study was conducted at a single referral center. Patients with infected SBD of the femur or tibia treated with IMT were included if they had at least 12 months of bone healing and no evidence of infection.
J Surg Oncol
September 2025
Orthopedic Oncology Service, Department of Orthopedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Background: Hemicondylar fresh frozen allografts address partial knee defects while preserving native anatomy and bone stock. This study evaluated long-term survival, failure modes, and functional outcomes following hemicondylar reconstruction.
Methods: We conducted a retrospective analysis of hemicondylar fresh frozen allograft reconstructions.
JB JS Open Access
September 2025
Division of Orthopedic Surgery, Department of Regenerative and Transplant Medicine, Niigata University Graduate School of Medical and Dental Science, Niigata, Japan.
Background: Lower extremity alignment in knee osteoarthritis (OA) is conventionally assessed using standing radiographs. However, symptoms often manifest during gait. Understanding dynamic alignment during gait may help characterize disease progression and inform treatment strategies.
View Article and Find Full Text PDFAm J Case Rep
September 2025
Department of Orthopedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
BACKGROUND The treatment of nonunion with deformity and shortening remains a significant challenge in orthopedic surgery. The chipping and lengthening technique is used for bone reconstruction and new bone formation, without the need for bone grafting. However, inadequate bone regeneration can require additional treatment.
View Article and Find Full Text PDFPurpose: This study examines the association between neurogenic injury and lumbar intervertebral disc degeneration (LDD) in tethered cord syndrome (TCS) by comparing lumbar sagittal parameters and disc degeneration between patients with normal and abnormal somatosensory evoked potential (SSEP) findings.
Methods: We retrospectively analyzed clinical data from 43 patients diagnosed with TCS between July 2018 and July 2024. Based on tibial nerve somatosensory evoked potential (SSEP) examination results, patients were categorized into SSEP-normal and SSEP-abnormal groups.