Vascularized composite allotransplantation (VCA) has added another step to the reconstructive ladder, leading to a paradigm shift in the approach toward management of cases of upper limb amputations. In this article, we discuss in detail the technical aspects of proximal forearm level transplantation, as well as the immediate posttransplant monitoring and immunosuppression protocols. A 24-year-old male victim of an electric injury presented with a bilateral proximal forearm level amputation. After the mandatory preoperative psychiatric and immunological evaluation, the patient underwent a proximal forearm level double upper extremity transplantation. He was then put on a stringent immunosuppression and physical rehabilitative regime. Conceptually, the proximal forearm level transplantation is significantly different from distal forearm level transplant. This transplant "reestablishes" the "donor extremity length," maintains the normal functional length of the donor muscles, and the functional return happens only after the newly transplanted donor muscles are reinnervated over a period of time. As the sequence of surgical repair and associated decision making could be quite confusing for this level of transplantation, it is highly advisable to do mock cadaver surgical dissections in order to standardize the procedure and make the team familiar with it.
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http://dx.doi.org/10.1055/s-0039-3401474 | DOI Listing |
Ann Med
December 2025
Department of Anesthesiology and Reanimation, Zonguldak Bülent Ecevit University Medicine Faculty, Zonguldak, Türkiye.
Background: Although both the lateral sagittal and costoclavicular approaches are applied at the cord level in the infraclavicular region, there is a major difference between the distributions of the two approaches. We aimed to investigate the effects of this different distribution on tissue perfusion and oxygenation.
Methods: Sixty patients undergoing elective elbow, forearm, wrist and hand surgery under infraclavicular brachial plexus block were included in the study.
Sensors (Basel)
December 2024
National Institute for Occupational Safety and Health, Cincinnati, OH 45226, USA.
The American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Values (TLVs) for lifting provides risk zones for assessing two-handed lifting tasks. This paper describes two computational models for identifying the lifting risk zones using gyroscope information from five inertial measurement units (IMUs) attached to the lifter. Two models were developed: (1) the ratio model using body segment length ratios of the forearm, upper arm, trunk, thigh, and calf segments, and (2) the ratio + length model using actual measurements of the body segments in the ratio model.
View Article and Find Full Text PDFArch Orthop Trauma Surg
January 2025
Department of Pediatric Surgery, Faculty of Medicine and University Hospital Carl Gustav Carus, TUD Dresden University of Technology, Fetscherstraße, 74, 01307, Dresden, Germany.
Background: Unstable diametaphyseal radius fractures (DMRFs) can be prone to complications, and treatment strategies are heterogeneous. Studies are difficult to interpret as definitions of the diametaphyseal junction zone (DMJZ) are impractical for clinical use, imprecise, or prone to error.
Methods: We introduce the forearm fracture index (FFI) to define DMRFs in radiographs and ultrasound.
Sci Rep
January 2025
Institute for Anatomy und Cell Biology, Department of Medical Cell Biology, Philipps-Universität Marburg, Robert-Koch-Str. 8, 35032, Marburg, Germany.
Maximal isometric contraction time (MICT) is critical for most motor tasks and depends on skeletal muscle blood flow at < 40% of maximal voluntary strength (MVC). Whether limb work positions associated with reduced perfusion pressure and facilitated vessel compression affect MICT is largely unknown. In 14 healthy young men we therefore assessed bilateral handgrip MICT at 15, 20, 30, 40, and 70% of MVC in horizontal forearm positions of 0.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Aging + Cardiovascular Discovery Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA.
Overuse injury is a frequent diagnosis in occupational medicine and athletics. Using an established model of upper extremity overuse, we sought to characterize changes occurring in the forepaws and forelimbs of mature female rats (14-18 months of age). Thirty-three rats underwent a 4-week shaping period, before performing a high-repetition low-force (HRLF) task for 12 weeks, with the results being compared to 32 mature controls.
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