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Soft tissue sarcoma is a rare malignancy, with approximately 11,000 cases per year encountered in the United States. It is primarily encountered in adults but can affect patients of any age. There are many histologic subtypes and the malignancy can be low or high grade. Appropriate staging work up includes a physical exam, advanced imaging, and a carefully planned biopsy. This information is then used to guide the discussion of definitive treatment of the tumor which typically involves surgical resection with a negative margin in addition to neoadjuvant or adjuvant external beam radiation. Advances in imaging and radiation therapy have made limb salvage surgery the standard of care, with local control rates greater than 90% in most modern series. Currently, the role of chemotherapy is not well defined and this treatment is typically reserved for patients with metastatic or recurrent disease and for certain histologic subtypes. The goal of this paper is to review the current state of the art in multidisciplinary management of soft tissue sarcoma.
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http://dx.doi.org/10.1155/2013/852462 | DOI Listing |
J Biomech Eng
September 2025
Texas Tech University Box 41021 Lubbock, TX 79409.
Wrist biomechanics remain incompletely understood due to the complexity of experimental measurements in this multi-bone joint system. Finite element analysis provides a powerful alternative for investigating internal variables such as carpal kinematics and displacement patterns. This technical brief compares two bone representation approaches, all-cortical versus cortical-trabecular, using two distinct finite element models developed from the same wrist CT dataset.
View Article and Find Full Text PDFBiol Cybern
September 2025
Department of Mechanical Science and Engineering, University of Illinois Urbana-Champaign, 61801, IL, USA.
In this article, a biophysically realistic model of a soft octopus arm with internal musculature is presented. The modeling is motivated by experimental observations of sensorimotor control where an arm localizes and reaches a target. Major contributions of this article are: (i) development of models to capture the mechanical properties of arm musculature, the electrical properties of the arm peripheral nervous system (PNS), and the coupling of PNS with muscular contractions; (ii) modeling the arm sensory system, including chemosensing and proprioception; and (iii) algorithms for sensorimotor control, which include a novel feedback neural motor control law for mimicking target-oriented arm reaching motions, and a novel consensus algorithm for solving sensing problems such as locating a food source from local chemical sensory information (exogenous) and arm deformation information (endogenous).
View Article and Find Full Text PDFUnfallchirurgie (Heidelb)
September 2025
Klinik für Unfall‑, Hand- und Wiederherstellungschirurgie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, Gebäude W1, 48149, Münster, Deutschland.
The bony consolidation of fractures depends on various factors. Under optimal conditions fracture healing takes place within a few weeks. An essential requirement for fracture healing is the restoration of adequate biomechanical stability with an interfragmentary movement which is as ideal as possible.
View Article and Find Full Text PDFJ Am Acad Orthop Surg Glob Res Rev
September 2025
From the American Hip Institute Research Foundation (Dr. Quesada-Jimenez, Dr. Kahana-Rojkind, and Dr. Domb), and the American Hip Institute, Chicago, IL (Dr. Domb).
Hip pain after a total hip arthroplasty is a prevalent condition. Once aseptic loosening and infection have been ruled out, the possible entities are vast. Accurate diagnosis in this patient population is challenging because they might present in different stages of their recovery process and the potential overlap of some conditions.
View Article and Find Full Text PDFJ 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.