Case: A 69-year-old woman presented with a brachial artery pseudoaneurysm causing median, ulnar, and radial nerve compressive neuropathies 8 weeks after a proximal humerus shaft fracture treated with intramedullary nailing. She underwent a brachial artery bypass with a reverse cephalic vein interposition graft and neurolysis after decompression of a large pseudoaneurysm. Postoperatively, the patient had a normal vascular examination with recovering neurological function.
Conclusions: A high index of suspicion for a brachial artery pseudoaneurysm should be maintained in patients with a displaced proximal humerus shaft fracture, particularly when an abnormal neurovascular examination is present.
The significance of forelimb morphology has been discussed with a focus on specific morphological aspects; nonetheless, the correlation of overall morphology, including various linear measurements, with respect to ecological preference and adaptation has not been extensively explored, particularly using multiple taxa. We investigated the morphological characteristics of the long bones in the forelimbs of mammalian species and their relationship with specific functional adaptations using 20 linear measurements and 22 terrestrial species from 7 orders. Principal component analysis and canonical discriminant analysis showed that the lengths of the humerus, radius, and ulna as well as the distance from the smallest width to the proximal and distal ends, and the deltoid tuberosity length distinguished four adaptations: arboreal, terrestrial, fossorial, and semi-aquatic.
The standard treatment for displaced pediatric supracondylar fracture of humer us (PSCFH) is closed reduction and percutaneous pinning under image intensifier guidance. This technical note describes Kapandji intrafocal pinning technique (KIPT) for achieving optimal fracture reduction and stable fixation in Gartland Type III or IV extension type PSCFH. In KIPT, a K wire was introduced into the fracture site from the posterior aspect, fracture manipulation was done by levering with wire reducing the posterior displacement of the distal fragment and the wire was fixed to the anterior cortex of the proximal fragment.
Background: The shoulder girdle and proximal humerus are common sites for neoplastic lesions be it benign or malignant. We aimed to evaluate the outcomes of a frugal method of reconstruction of the proximal humerus for neoplastic lesions at short to medium term follow-up.
Methods: Data for this retrospective case series was collected from an electronic data base held at the primary authors institution.
Objective: To explore changes of humerus torque screw tip distance on stability of proximal humeral internal locking system (PHILOS) by finite element analysis, in order to provide reference for selection of intraoperative plant size.
Methods: The proximal humerus 3D model was constructed based on Synbone artificial bone model in 3D engineering drawing software, and the corresponding 3D model was constructed based on PHILOS bone plate contour. The model was modified to simulate comminuted proximal humerus fracture, and the operation model was simulated after fracture, and the fixed operation model was assembled, the apex distance of humerus moment screw was set as 4, 8, 12 and 16 mm respectively.
