Postoperative deformities of the knee and sequaelae after intraarticular surgery can interfere with a standard parapetallar approach for intramedullary stabilisation of the tibia. Even the suprapatellar approach can be rendered impossible. For these rare indications we describe the patella osteotomy and transpatellar approach.
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Orthop Surg
January 2025
Department of Trauma and Orthopeadics, Peking University People's Hospital, Beijing, People's Republic of China.
Objective: Reverse obliquity intertrochanteric fracture is an unstable type of fracture. Current guidelines recommend intramedullary fixation, but there are still complications such as screw removal, hip varus, nail withdrawal, and nail fracture. The objective of this study was to use finite element analysis to compare the biomechanical properties of the novel proximal femoral bionic nail (PFBN), proximal femoral nail antirotation (PFNA), and combined compression interlocking intramedullary nail (InterTan) in the treatment of reverse obliquity intertrochanteric fractures (AO/OTA 31-A3.
View Article and Find Full Text PDFJ Funct Biomater
January 2025
Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, Smoluchowskiego 25, 50-372 Wrocław, Poland.
This study focuses on the development and evaluation of the OrthoNail hybrid intramedullary implant for lower limb lengthening in patients requiring significant skeletal reconstruction. The implant addresses the challenges in load-bearing during rehabilitation, providing a robust solution that is capable of supporting physiological loads. Mechanical tests, including axial compression, tension, torsion, and 3,4-point bending, determined the implant's load capacity and fatigue resistance, while finite element analysis assessed stress distributions in bone tissue and around screw holes during single-leg stance, with boundary conditions derived from Orthoload database data.
View Article and Find Full Text PDFSurg Pract Sci
March 2025
Arizona Center of Hand to Shoulder Surgery, Phoenix, AZ, United States.
Introduction: Time spent in the operating room (OR) has ramifications that impact patient outcomes and the economics of patients, physicians, surgery centers, and insurance industry. For that reason, there is an incentive to seek approaches that allow shorter times to be spent in the OR. To what extent varying routine techniques impact on operating times has not been extensively studied in metacarpal fixation literature, specifically investigating retrograde threaded intramedullary nail fixations (RTNF) and comparing it to open plating fixations (OPF).
View Article and Find Full Text PDFSICOT J
January 2025
Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, 69004 Lyon, France - Université de Lyon, Université Claude Bernard Lyon 1, IFSTTAR, LBMC UMR_T9406, 69622 Lyon, France.
Introduction: Revision Total Knee Arthroplasty (RTKA) is complex, and induced bone loss might endanger implant fixation and joint stability. Intramedullary stems improve fixation throughout stress redistribution. The current study aims to compare the performance of short tibial stems with long tibial stems, investigating their intermediate-term radiographic and survival outcomes in RTKA.
View Article and Find Full Text PDFEur J Trauma Emerg Surg
January 2025
Department of Orthopaedics, Trauma and Reconstructive Surgery, Medical Faculty, RWTH Aachen University, Aachen, Germany.
Purpose: In polytrauma patients, injuries involving the extremities are frequently seen. Treatment concepts vary from early definitive care to temporary fixation and delayed definite stabilization. This analysis therefor aims to illuminate the impact of timing for operative stabilization of extremity fractures on outcome factors in adult polytrauma patients.
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