Supracondylar fracture of humerus in adults11/12/2023 ![]() ![]() Patients will typically present with arm pain, swelling, weakness.Ĭommonly there is a visible deformity and patients often report a snapping orĬracking sound at the time of injury. In newborns, a humeral shaft fracture may occur because of In that setting, owing to bone fragility, there may be other Penetrating trauma), while in the elderly they are usually low energy injuries sustainedĪfter a fall. To direct high energy impact (e.g., vehicular accident, sporting injury, or In younger patients, humeral shaft fractures are usually due Patient Presentation Humeral Shaft Fractures The extensor muscles from the lateral epicondyle. The common wrist flexor muscles originate from the medial epicondyle, and The ulnar nerve passes through the cubital tunnel just distal to the medialĮpicondyle. The distal part of the medial column is the medial epicondyle. The radius to complete the elbow joint (see Figure 1).įigure 1: The anterior and posterior views of the humerus, with attention to the landmarks of the distal humerus, labeled as follows: (A) capitellum (B) lateral epicondyle (C) radial head (D) coronoid process of the ulna (E) trochlea (F) medial epicondyle (G) olecranon. Theĭistal part of the lateral column, the capitellum, articulates with the head of These columns flank the olecranon fossaĪnd distally support the trochlea - a smooth spool of articular cartilage claspedīy the proximal ulna to form the humeral side of the elbow’s hinge mechanism. The humeral diaphysis flares into medial and lateral columns.Įach column has an epicondyle and a condyle. Intermuscular septum to enter the anterior compartment just proximal to the Proximal to the lateral epicondyle), and then passes through the lateral Spiral groove, (approximately 20 cm proximal to the medial epicondyle and 15 cm The radial nerve begins in the posteriorĬompartment and crosses the posterior aspect of the humerus obliquely in the Through the medial intermuscular septum to enter the posterior compartment near The ulnar nerve begins proximally in the anterior compartment but passes Musculocutaneous nerve, and brachial artery are in the anterior compartment. The arm into anterior and posterior muscle compartments. The humerus is surrounded by richly vascularized muscles, anĪnatomic feature which aids healing. Metaphysis and limits the use of intramedullary nails for humeral shaft Narrowing of the distal humerus is unlike the flaring of the femoral or tibial ![]() The shaft narrows and tapers to a triangular shape with the apex anterior. The proximal portion of the humeral shaft is cylindrical. The humeral shaft is defined as the diaphyseal region of theīone, spanning from a point distal to the insertion of the pectoralis major muscle Needed to preserve elbow motion as well, distal humeral fractures are more Stiffness, and because precise anatomic reduction of articular surface might be Immobilization of distal humeral fractures might lead to intolerable elbow One major exception is fracture of the distal humerus. Those of the femoral shaft, are usually amenable to treatment with simple immobilization Thus, fractures of the humeral shaft, unlike Of the femur, the humerus is not often a weight-bearing bone and is also remarkably Fractures of the humerus include those near the shoulder (knownĪs proximal humeral fractures), shaft fractures, and fractures near theĮlbow (known as distal humeral fractures). ![]()
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