Diaphyseal fracture of clavicleRobinson et al calculated the projected risk of non union following diaphyseal shaft fractures of the clavicle treated non operatively. Use calculator below to calculate the prognostic index, then look up on the graph to estimate probability of fracture remaining un united at 6, 12 and 24 weeks respectively.
Prognostic index = [-0.85 x (1 if displaced or 0 if undisplaced)] + [-0.36 x (1 if female or 0 if male)] + [-0.37 x (1 if comminuted fracture or 0 if noncomminuted fracture)] + [-0.01 x (age of patient in years)].
ReferencesRobinson CM, Court-Brown CM, McQueen MM, Wakefield AE. Estimating the risk of nonunion following nonoperative treatment of a clavicular fracture. J Bone Joint Surg Am. 2004 Jul;86-A(7):1359-65. Last updated 11/09/2015 |