The purpose of the study is to evaluate the safety and effectiveness of conservative treatment in treatment of patients over 75 years with impacted femoral neck fracture.

The study is to compare clinical outcomes between conservative treatment, internal fixation, and hemiarthroplasty in patients over 75 years with impacted femoral neck fracture. All the 3 groups were evaluated by hip pain(visual analogue scale,VAS), hip function(Harris hip score,HHS), health related quality of life(European Quality of Life-5 Dimensions index scores, Eq-5d). All thses parameters were assessed at admission and 1-, 3-, 6- 12-, 24- and 36 months after intervention. Operation duration and blood loss were recorded. Mortality, union rate, complications and re-operation were also monitored throughout the study.

Inclusion Criteria:

Patients >75 years old who were diagnosed with impacted femoral neck fracture with confirmation of mutual embedding and close combination of the fracture ends by CT or MRI scanning(including Garden 1 and 2 and varus impacted FNF) were eligible for the inclusion.

Exclusion Criteria:

Patients <75 years old, pathological fracture, nonimpacted or displaced fracture, unable to walk previously, avascular necrosis of femoral head, previous symptomatic hip pathology (such as arthritis), infection, a history of fracture in the studied hip, deformity of lower limb.