Human evolution and the development of spondylolysis.

  title={Human evolution and the development of spondylolysis.},
  author={Carol V Ward and Bruce Latimer},
  volume={30 16},
STUDY DESIGN We propose that chronic spondylolytic defects at L5 are influenced by insufficient differential mediolateral distances between inferior articular facets of L4 and the superior facets of S1, which results in these structures impinging on adjacent sides of the par interarticularis during hyperlordosis. Individuals with adequate increase in interfacet distances from L4 through S1 are less likely to develop or maintain defects. OBJECTIVES We test the above hypothesis by comparing the… CONTINUE READING

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