General considerations

A2 fractures (impacted 2-part surgical neck fracture) are intrinsically stable due to the metaphyseal impaction. The decision for operative management should depend on the degree of fracture deformity (angulation). The main aim of treatment is to achieve fracture union with acceptable alignment, with little functional impairment,
The functional demands of the patient, the presence of comorbidities, and risk of delayed fracture displacement should be considered. Conservative treatment usually achieves good results, particularly for varus impacted fractures (A2.2).