Introduction: Aim of our study was to evaluate the influence of working length and screw density on callus formation in distal tibial fractures fixed with a medial bridge plate.
Materials And Methods: 42 distal tibia fractures treated with a bridge plate were analyzed. Minimum follow-up was 12 months. mRUST score (modified Radiographic Union Scale for Tibial fractures) was used to assess callus formation. Working length and screw density were measured from post-operative radiographs.
Results: 39 (92.9%) fractures healed uneventfully. 32 (76.19%) patients showed signs of early callus formation 3 months post-surgery. In these patients a lower screw density was used compared to patients who didn't show early callus (33.4 vs. 26.6; p = 0.04). No differences was noticed in working length.
Conclusion: Bridge plate osteosynthesis is a good treatment option in distal tibia fractures. In our series increasing the working length was not associated with a faster callus formation in distal tibia fractures. Conversely, a lower screw density proximally to the fracture site was associated to a faster callus growth.
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http://dx.doi.org/10.1007/s00590-023-03697-6 | DOI Listing |
Clin Spine Surg
December 2024
Department of Orthopaedic Surgery, Keio University School of Medicine, Shinjyuku, Tokyo.
Study Design: Multicenter retrospective cohort study.
Objective: To evaluate the efficacy and safety of using cement-augmented pedicle screw (CAPS) fixation only for the cephalad and caudal vertebral bodies.
Summary Of Background Data: Pedicle screw fixation is less effective in patients with low-quality bone.
Asian Spine J
December 2024
National Spinal Injuries Unit, Mater Misericordiae University Hospital, Dublin, Ireland.
Computed tomography (CT) is widely used for the diagnosis and surgical treatment of spinal pathologies, particularly for pedicle screw placement. However, CT's limitations, notably radiation exposure, necessitate the development of alternative imaging techniques. Synthetic CT (sCT), which generates CT-like images from existing magnetic resonance imaging (MRI) scans, offers a promising alternative to reduce radiation exposure.
View Article and Find Full Text PDFJ Orthop Res
January 2025
Stavros Niarchos Foundation Complex Joint Reconstruction Center, Hospital for Special Surgery, New York, New York, USA.
Patient-specific flanged acetabular components are utilized to treat failed total hip arthroplasties with severe acetabular defects. We previously developed and published a finite element model that investigated the impact of hip joint center lateralization on construct biomechanics during gait conditions. This model consisted of a patient-specific implant designed to address a superior-medial defect created in a standard pelvic geometry.
View Article and Find Full Text PDFBrain Spine
December 2024
Department of Neurosurgery, Ruprecht-Karls-University Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
Cureus
November 2024
Aerospace Engineering, Universiti Putra Malaysia, Kuala Lumpur, MYS.
Introduction Spinal fusion surgery with pedicle screws is commonly performed to stabilize the spine of osteoporotic patients. However, securing a strong screw fixation in osteoporotic bone presents significant challenges due to the reduced bone density. This study aimed to compare the biomechanical performance in an osteoporotic bone model of pedicle screws inserted using two different techniques, the Jamshidi needle technique and the pedicle probe technique, as well as the influence of tapping on both these techniques.
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