Objective: This prospective study was performed to investigate the distribution of proximal ulnar artery perforating vessels through three-dimensional blood vessel reconstruction and examine the presence and consistency of the perforating vessels intraoperatively.
Methods: For anatomical guidance, three-dimensional blood vessel reconstruction was performed to determine the consistent presence of perforating vessels in the proximal ulnar artery. A free proximal ulnar artery perforator flap was then transferred in 17 patients to resurface skin defects on the hands. Color Doppler ultrasound was used to identify and mark the perforating vessels. Intraoperative evaluation was conducted to check for anastomosis of the perforating vessels at the marked sites and assess the vessel anastomosis conditions.
Results: No vascular crisis, flap necrosis, or wound infection occurred after surgery in 15 patients. Postoperative follow-up was conducted for 6 to 36 months. The appearance of the flap was satisfactory, the texture of the flap was soft, sensation was well restored, and hand function was not limited. The mean two-point discrimination of the flap was 7.6 ± 2.2 mm.
Conclusions: Free sensory proximal ulnar artery perforator flap transfer is a safe and reliable surgical technique with respect to restoration of both the appearance and sensory function of the hand.
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http://dx.doi.org/10.1177/0300060520922396 | DOI Listing |
J Anat
January 2025
Instituto de Ecorregiones Andinas (INECOA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Jujuy, Jujuy, Argentina.
Anatomical knowledge is fundamental for all species. In particular, myology allows a deeper understanding of ecomorphology-especially for those species hard to observe in the wild-and may be an important source for phylogenetic information. In this study, we analyzed the myological variation of the musculature of the shoulder and arm of the forelimb in species of the suborder Feliformia and its relationship with the phylogenetic history and the locomotor behavior, habitat, and predatory habits of the species within this group, using Leopardus geoffroyi as a case study.
View Article and Find Full Text PDFFront Bioeng Biotechnol
January 2025
Department of Orthopedics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China.
Background: The most common postoperative complication of the Sauvé‒Kapandji (S-K) procedure is proximal ulnar stump instability. The distal oblique bundle (DOB) is a stable tissue used to stabilize the distal radioulnar joint. This study created finite-element models of the distal oblique bundle (DOB) to determine its effect on the proximal ulnar stump instability encountered during the Sauvé‒Kapandji procedure.
View Article and Find Full Text PDFJ Hand Surg Am
January 2025
Department of Orthopaedic Surgery, University of Utah Hospital, Salt Lake City, UT. Electronic address:
Purpose: Controversy exists regarding the optimal imaging modality (magnetic resonance imaging, ultrasound, stress radiographs) for identification of patients with grossly unstable thumb metacarpophalangeal (MCP) ulnar collateral ligament (UCL) injuries or Stener lesions. We characterize a radiographic sign for this purpose. The "displaced fleck sign" is a small avulsion fracture from the ulnar proximal phalanx base that is displaced proximal to the MCP joint line.
View Article and Find Full Text PDFJBJS Rev
November 2024
Division of Plastic and Reconstructive Surgery, University of Colorado School of Medicine, Anschutz Medical Center, Aurora, Colorado.
Background: Modern nerve-to-nerve transfers are a significant advancement in peripheral nerve surgery. Nerve transfers involve transferring donor nerves or branches to recipient nerves close to the motor end unit, leading to earlier reinnervation and preservation of the musculotendinous units in proximal nerve injuries. After nerve reinnervation, function may be superior to traditional tendon transfer techniques in terms of strength and independent motion.
View Article and Find Full Text PDFHand Surg Rehabil
January 2025
Aspetar Orthopedic and Sports Medicine Hospital, Doha, Qatar; Qatar University, College of Medicine, Dept of Health and Clinical Sciences, Doha, Qatar; Karolinska Institutet, Department of Clinical Science and Education, Stockholm, Sweden.
An ulnar nerve (UN) palsy is devastating for hand function, resulting in an intrinsic minus position or claw hand with a loss of pinch grip. Distal nerve transfers facilitate faster reinnervation of hand intrinsic muscles in cases of proximal ulnar nerve lesions. The traditional anterior interosseous nerve (AIN) to UN motor transfer is commonly used, however, this still leads to long reinnervation times for the distal intrinsic muscles, important for the thumb to index pinch grip.
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