Background And Aims: The purpose of this study was to evaluate the use of bioabsorbable implants in proximal tibia cancellous bone fixations in 28 patients.
Patients And Methods: The implants used were self-reinforced polyglycolide (SR-PGA) or self-reinforced polylactide (SR-PLLA) screws or rods. In six patients a high tibial osteotomy and in 16 patients a proximal tibial plateau fracture were secured with these implants (cancellous bone fixations). In addition, four anterior tibial eminence avulsion fractures and two tibial tuberosity avulsions were fixed (avulsion fractures). The average follow-up time was 3.6 years.
Result And Conclusions: In the cancellous bone fixations (15 patients at the follow-up) there were three excellent clinical results, five good, five moderate and two poor results; radiologically there were one excellent result, eight good, five moderate, and one poor result. In the avulsion fracture patients (four patients at the follow-up) there were two excellent and two good clinical results; radiologically all results were excellent. In four cancellous bone fixations redisplacement was noted. In all patients the functional score was 25.6/30 (Rasmussen 1973). The bioabsorbable implants can be used for fixation of proximal tibial cancellous bone osteotomies and fractures and avulsion fractures with good or moderate results.
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Int Dent J
January 2025
Department of Prosthodontics, Dalian Stomatological Hospital, Dalian, China. Electronic address:
Introduction And Aims: Implantation of the posterior maxilla with insufficient bone height faces challenges. Studies have shown that the use of ultrashort implants can avoid additional damage. This finite element analysis study aimed to evaluate the impacts of different lengths of ultrashort implants and three surgical approaches on stress, strain, and displacement in the posterior maxilla with varying bone heights.
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March 2024
Consultant Orthopaedic Surgeon, San Carlo Borromeo Hospital, Via Pio II 3, Milano, Italy.
Introduction: Bisphosphonates are commonly used to prevent osteoporotic fractures. Many randomized controlled trials have proved the efficacy of bisphosphonates, showing their ability to increase bone mineral density and decrease the risk of hip and vertebral fractures. Atypical, bisphosphonate-related fractures concerning the femur have been widely described and a list of primary and secondary clinical and radiographic criteria are used in order to achieve diagnosis.
View Article and Find Full Text PDFJ Craniofac Surg
January 2025
Department of Oral and Maxillofacial Surgery, Guangzhou Medical University Affiliated Women and Children's Medical Center, Guangzhou, China.
The aim of this study was to explore the factors influencing the quality of new bone formation after distraction osteogenesis in children with Pierre Robin sequence (PRS). Using cone-beam computed tomography (CBCT), bone density relative grayscale values of the region of new bone formation before and 3 to 4 months after mandibular distraction osteogenesis (MDO) were measured in 80 children with PRS, and correlation analysis was conducted with the potential clinical influencing factors of the children. CBCT reconstruction of the panoramic film showed that the new bone formation was good at 3 to 4 months after MDO.
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December 2024
Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba 80215-901, PR, Brazil.
Silver nanoparticles have garnered significant attention for their antimicrobial applications. The aim of this study was to develop and characterize a silver nanoparticle-enhanced bone graft and assess its antimicrobial and antibiofilm activities. Bone granules from bovine cancellous femur were impregnated with silver nanoparticles (50 nm).
View Article and Find Full Text PDFBioengineering (Basel)
December 2024
Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University and Guangdong Research Center for Dental and Cranial Rehabilitation and Material Engineering, Guangzhou 510055, China.
Biogenic hydroxyapatite is known for its osteoinductive potential due to its similarity to human bone and biocompatibility, but insufficient vascularization compared to autogenous bone during early implantation limits bone integration and osteogenesis. Fluorine has been shown to improve hydroxyapatite's mechanical properties and the coupling of osteogenic and angiogenic cells. In this study, fluorine-modified biogenic hydroxyapatite (FPHA) with varying fluorine concentrations was prepared and tested for its ability to promote vascularized osteogenesis.
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