The AO classification of proximal humeral fractures, along with the Neer classification, is one of the most frequently used systems for classifying proximal humeral fractures.. Proximal humerus fractures are the third most common fracture type in individuals older than 65 years, after distal radius and proximal femur fractures [8].

Most of these fractures can be treated with a sling, a swathe, and early mobilization. Tuberosity. Proximal humerus. The basis of the classification system is anatomy and the relatively predictable fracture cleavage lines through the proximal humerus. If any of the 4 segments is separated by more than 1 cm from its neighbor or is angulated more than 45°, the fracture is said to be displaced. Open subtypes (3) Extraarticular, 3-part. 1.8). The cause of fracture is osteoporosis.The fracture is also observed in children mostly following fall and young adults following direct impact, which results in fracture. proximal humerus fractures are common fractures often seen in older patients with osteoporotic bone following a simple ground-level fall on an outstretched arm. Proximal humeral fractures are proximal to the surgical neck (see figure Key anatomic landmarks in the proximal humerus). The 4-segment classification has been widely used for the treatment of proximal humeral fractures.9, 10 In this system, when there is displacement of 1 cm or more between segments or when there is an angulation of 45° or more, a fracture is defined as a displaced fracture (2-part, 3-part, or 4-part fracture). Most are minimally displaced and angulated. The Neer Classification The Neer classification for proximal humerus fractures is based on 4 fracture parts: the greater tuberosity, the lesser tuberosity, the humeral head, and the humeral shaft.

The AO classification divides proximal humeral fractures into three groups, A, B and C, each with subgroups, and places more emphasis on the blood supply to the articular surface 1,2. Proximal Humerus Fracture is often seen in elderly population 1 and post-menopausal female. One of the major issues is the analysis of fracture patterns, which often leaves room for interpretation. A full description of the classification and its subtypes can be found in an article by Carofino and Leopold.17 For practical purposes, fractures are

Abstract. History. Diagnosis is by plain x-ray or sometimes CT. Proximal Humerus Fracture: Neer’s Classification Neer II,CS, JBJS (A), 52: 1077-1089, 1970. Minimally displaced one part fractures No segment displaced > 1cm or angulated > 45 deg Two part fracture of anatomical neck, articular segment displaced High risk of AVN Two part fracture of the surgical neck with shaft displacement: Open subtypes (2) Articular or 4-part. The Neer classification for proximal humerus fractures is based on 4 fracture parts: the greater tuberosity, the lesser tuberosity, the humeral head, and the humeral shaft. Proximal humerus fractures are the third most common fracture type in individuals older than 65 years, after distal radius and proximal femur fractures [].In 1970, Charles Neer described his four-segment classification system [].He believed the existing classifications were inadequate for research purposes, as they did not differentiate between injuries of varied severity nor … sling immobilization is the treatment for the majority of these fractures. surgical treatment may be indicated in more complex and displaced fractures. Epidemiology. Proximal humeral fractures account for 4–5 % of all fractures, with the higher incidence in women. The AO/ASIF system and the Neer’s four-segment classification are used to record the fracture anatomy.

Clinical and radiographic assessment; Open fractures, Infection, Compartment syndrome 3; References, Classification 2; Extraarticular, 2-part. Surgical neck and tuberosity, impaction. incidence The detailed bony detail of images can be used to evaluate tuberosity displacement, humeral head splitting and impaction components, degree of comminution, and any involvement of the glenoid articular surface (Fig. Computed tomography (CT) images can be a useful tool in evaluation and classification of proximal humerus fractures.