Understanding the etiology of the posteromedial tibial stress fracture

Charles Milgrom, David Burr, Aharon S. Finestone, Arkady Voloshin

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Previous human in vivo tibial strain measurements from surface strain gauges during vigorous activities were found to be below the threshold value of repetitive cyclical loading at 2500 microstrain in tension necessary to reduce the fatigue life of bone, based on ex vivo studies. Therefore it has been hypothesized that an intermediate bone remodeling response might play a role in the development of tibial stress fractures. In young adults tibial stress fractures are usually oblique, suggesting that they are the result of failure under shear strain. Strains were measured using surface mounted unstacked 45° rosette strain gauges on the posterior aspect of the flat medial cortex just below the tibial midshaft, in a 48. year old male subject while performing vertical jumps, staircase jumps and running up and down stadium stairs. Shear strains approaching 5000 microstrain were recorded during stair jumping and vertical standing jumps. Shear strains above 1250 microstrain were recorded during runs up and down stadium steps. Based on predictions from ex vivo studies, stair and vertical jumping tibial shear strain in the test subject was high enough to potentially produce tibial stress fracture subsequent to repetitive cyclic loading without necessarily requiring an intermediate remodeling response to microdamage.

Original languageEnglish
Pages (from-to)11-14
Number of pages4
JournalBone
Volume78
DOIs
StatePublished - Sep 1 2015

Fingerprint

Stress Fractures
Tibial Fractures
Bone Remodeling
Running
Fatigue
Young Adult
Bone and Bones

Keywords

  • In vivo
  • Loading
  • Shear
  • Strain
  • Stress fracture
  • Tibia

ASJC Scopus subject areas

  • Physiology
  • Endocrinology, Diabetes and Metabolism
  • Histology

Cite this

Milgrom, C., Burr, D., Finestone, A. S., & Voloshin, A. (2015). Understanding the etiology of the posteromedial tibial stress fracture. Bone, 78, 11-14. https://doi.org/10.1016/j.bone.2015.04.033

Understanding the etiology of the posteromedial tibial stress fracture. / Milgrom, Charles; Burr, David; Finestone, Aharon S.; Voloshin, Arkady.

In: Bone, Vol. 78, 01.09.2015, p. 11-14.

Research output: Contribution to journalArticle

Milgrom, C, Burr, D, Finestone, AS & Voloshin, A 2015, 'Understanding the etiology of the posteromedial tibial stress fracture', Bone, vol. 78, pp. 11-14. https://doi.org/10.1016/j.bone.2015.04.033
Milgrom, Charles ; Burr, David ; Finestone, Aharon S. ; Voloshin, Arkady. / Understanding the etiology of the posteromedial tibial stress fracture. In: Bone. 2015 ; Vol. 78. pp. 11-14.
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