China
Africa
Explore chapters and articles related to this topic
Shoulder and humerus
Published in Pankaj Sharma, Nicola Maffulli, Practice Questions in Trauma and Orthopaedics for the FRCS, 2017
Pankaj Sharma, Nicola Maffulli
The anterior and posterior humeral circumflex arteries arise from the axillary artery at the lower border of the subscapularis muscle. The posterior humeral circumflex artery runs backwards with the axillary nerve through the quadrangular space. The anterior humeral circumflex artery runs laterally across the neck of the humerus and eventually anastomoses with the posterior humeral circumflex artery.
Humeral diaphyseal fractures
Published in Charles M Court-Brown, Margaret M McQueen, Marc F Swiontkowski, David Ring, Susan M Friedman, Andrew D Duckworth, Musculoskeletal Trauma in the Elderly, 2016
Amy S. Wasterlain, Kenneth A. Egol
The patient is placed prone or in the lateral decubitus position with the arm over a bolster. A tourniquet may be applied during the distal dissection and identification of the radial nerve, and then removed when working more proximally. The incision is centred over the fracture in the posterior midline and may be extended from the olecranon distally to the posterolateral aspect of the acromion proximally. The triceps muscle and fascia are divided sharply, taking care to identify and protect the radial nerve as it lies in the spiral groove of the humerus mid-shaft, and the profunda brachii artery, which travels with the nerve proximally. The approach continues proximally between the long and lateral heads of the triceps until the axillary nerve and posterior humeral circumflex artery are reached at the border of the deltoid (Figure 22.8a). If a plate is applied to the medial column of the distal humerus, identify and protect the ulnar nerve. The elbow joint can be accessed by performing an olecranon osteotomy and reflecting the triceps proximally.
The Triple Heater (TH)
Published in Narda G. Robinson, Interactive Medical Acupuncture Anatomy, 2016
Posterior humeral circumflex artery and vein: Arise from the axillary vessels and exit along with the axillary nerve through the quadrangular space (bordered by the subscapularis/teres minor muscles, the teres major, the long head of the triceps brachii, and the surgical neck of the humerus). Supply and drain the teres minor, deltoid, and possibly portions of the triceps brachii muscle at TH 13.
Current concepts review: peripheral neuropathies of the shoulder in the young athlete
Published in The Physician and Sportsmedicine, 2020
Tamara S. John, Felicity Fishman, Melinda S. Sharkey, Cordelia W. Carter
QSS is a rare condition affecting young athletes, which results from compression of the axillary nerve or the posterior humeral circumflex artery (PHCA) within the quadrilateral space (QS) [60]. The QS is bound superiorly by the teres minor, inferiorly by the teres major, medially by the long head of the triceps, and laterally by the humeral shaft; the axillary nerve and PHCA run through the QS [61]. This syndrome can present as generalized shoulder pain, tenderness to palpation over the QS, and potential teres minor and deltoid denervation as these muscles are innervated by the axillary nerve [62]. Vascular QSS in which the PHCA is involved will present with signs of ischemia: pain, pallor, diminished pulses, thrombosis, or embolism in which the fingers or hand may be cool to touch. QSS is most common in patients younger than 40 years of age who participate in activities with repeated overhead motions such as swimming, baseball, or volleyball [63].