physio surely has a big role to play in fracture nonunion.A nonunion of trochanteric fracture usually throw some challenges.Physio manage fracture nonunion by delivering progressive and guided longitudinal pressure to the fracture plane.this procedure usually stimulates callus formation.But delayed trochanteric fracture of the femor may throw a big risk with this method without paying adequate attention to some things .I want to take it that the fracture was reduced with a knail ,a screw or ziklag wire depending on the surgeon discretion and the pattern of the fracture with some other things been equal.If physio must facilitate calus formation by partial weight bearing,the weight is transmitted longitudinal along gravitational axis parallel to the trochanteric fracture plane.one would be doing more damage and aggravating the problem.
Giving the info given by u which are not detailed enough,i guess u communicate well with the surgeon for a review.If the fracture site is well secured with wire, an open chain exercise of the affected limb could make a difference.If the surgeon consiider a full leg cast, a patial wt bearing on parallel bar in a progresive manner could stimulate a dramatic improvement.
Pls u can get me informed about your decision on this interesting case.yelufem