Gunshot wounds to the hand often produce complex injuries and large segmental bone defects. Bone reconstruction remains a challenge in this context. The induced membrane technique is a simple and effective procedure for reconstruction of segmental bone defects. The technique is straightforward but must be performed rigorously. Usually polymethylmethacrylate (PMMA) cement is required for the first stage of the surgery. We describe four cases of metacarpal bone reconstruction after gunshot wounds in a limited-resource setting. Two patients were treated using the induced membrane technique with a polypropylene syringe body instead of PMMA cement, which was unavailable in this situation. A thick membrane was observed 6 weeks after spacer implantation. Bone union was achieved in all cases.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.hansur.2019.01.002 | DOI Listing |
J Med Case Rep
January 2025
Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya University Hospital, 65 Tsurumai, Showa, Nagoya, Aichi, 466-8550, Japan.
Background: The Compress is designed to achieve bone formation and stability by applying pressure at the bone-implant interface, minimizing the likelihood of aseptic loosening, which is a complication of stem implants. Herein, we report two cases of implant failure using the Compress.
Case Presentation: Case 1 describes a 36 year-old Japanese man who underwent extraarticular tumor resection, Compress arthroplasty, and reconstruction with a gastrocnemius flap after preoperative chemotherapy for a secondary malignant giant cell tumor in the right distal femur.
BMC Biol
January 2025
Department of Environmental Sciences, University of Basel, Basel, Switzerland.
Background: Treponemal diseases are a significant global health risk, presenting challenges to public health and severe consequences to individuals if left untreated. Despite numerous genomic studies on Treponema pallidum and the known possible biases introduced by the choice of the reference genome used for mapping, few investigations have addressed how these biases affect phylogenetic and evolutionary analysis of these bacteria. In this study, we ascertain the importance of selecting an appropriate genomic reference on phylogenetic and evolutionary analyses of T.
View Article and Find Full Text PDFMed Phys
January 2025
Department of Nuclear Medicine and Medical Physics, Karolinska University Hospital, Stockholm, Sweden.
Background: Modern reconstruction algorithms for computed tomography (CT) can exhibit nonlinear properties, including non-stationarity of noise and contrast dependence of both noise and spatial resolution. Model observers have been recommended as a tool for the task-based assessment of image quality (Samei E et al., Med Phys.
View Article and Find Full Text PDFSci Rep
January 2025
Divisions of Physical Therapy and Rehabilitation Science, Department of Family Medicine and Community Health, University of Minnesota, Minneapolis, MN, 55455, USA.
OrthoFusion, an intuitive super-resolution algorithm, is presented in this study to enhance the spatial resolution of clinical CT volumes. The efficacy of OrthoFusion is evaluated, relative to high-resolution CT volumes (ground truth), by assessing image volume and derived bone morphological similarity, as well as its performance in specific applications in 2D-3D registration tasks. Results demonstrate that OrthoFusion significantly reduced segmentation time, while improving structural similarity of bone images and relative accuracy of derived bone model geometries.
View Article and Find Full Text PDFBMJ Case Rep
January 2025
Orthopedic Surgery, Mayo Clinic Health System in Eau Claire, Eau Claire, Wisconsin, USA
Periprosthetic joint infection (PJI) is a devastating complication of total joint surgery. Surgical management of PJI has increased surgical risks and is costly to the healthcare system. This case study presents a unique clinical scenario involving a patient who was diagnosed with Lyme PJI at the total knee arthroplasty site after undergoing surgical management.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!