Prognostic precision in postoperative 99mTc-MDP scintimetry after femoral neck fracture

Acta Orthop Scand. 1987 Oct;58(5):494-8. doi: 10.3109/17453678709146386.


A 2-year follow-up regarding healing complications, such as redisplacement, nonunion, and segmental collapse of the femoral head, was performed in 306 patients operated on for femoral neck fracture and examined with 99mTechnetium-MDP scintimetry within 2 weeks postoperatively. Scintimetric evaluation was performed by selecting regions of interest over the femoral head on the fracture side and the intact side and by comparing the uptake. A femoral head ratio fractured/intact side thus was obtained. Of 199 patients with an intact femoral head uptake (ratio greater than or equal to 1.0), 181 showed no signs of healing complications at 2 years, whereas 18 had developed healing complications. Of 107 cases with a deficient femoral-head uptake (ratio less than 1.0), 96 had developed healing complications within 2 years from the operation, while 11 cases had no signs of radiographic complications. We conclude that 99mTc-MDP scintimetry performed within 2 weeks from femoral neck fracture can predict the outcome of the healing course with a prognostic accuracy of 91 per cent.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Female
  • Femoral Neck Fractures / diagnostic imaging*
  • Femoral Neck Fractures / physiopathology
  • Femoral Neck Fractures / surgery
  • Humans
  • Male
  • Middle Aged
  • Prognosis
  • Radionuclide Imaging
  • Technetium Tc 99m Medronate*
  • Wound Healing*


  • Technetium Tc 99m Medronate