Fig. 2From: Curative efficacy of surgical procedures for older patients with femoral neck fracture: a network meta-analysis and systematic reviewDirect comparisons in the network model. The thickness of the lines represents the number of studies; The size of the spots represent the number of patients (BHA = bipolar hemiarthroplasty; DHS = dynamic hip screw; THA = total hip arthroplasty) Back to article page