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March 6, 2026Journal of Orthopaedic Surgery and Research0 citationsOpen Access

Measurement of the principal compressive trabeculae in the midcoronal plane of proximal femur and its significance in lag screw fixation

XBXuedong BaiChinese PLA General HospitalWGWeilu GaoChinese PLA General HospitalCYChangsen YangNetaji Subhas National Institute of Sports

Key Points

  • The research aims to identify the importance of principal compressive trabeculae in the proximal femur for effective lag screw fixation.
  • Focus on the principal compressive trabeculae in the midcoronal plane of the proximal femur.
  • Analyze placement strategies for lag screws to ensure maximum anchoring strength.
  • Identified that the middle and lower trabeculae provide ideal screw-tracts.
  • Recommended deeper placement for upper lag screws and shallower for lower screws to enhance stability.

Abstract

For the elderly, the PCT is the main load-bearing structure between the femoral head and neck, and should be regarded as the target for lag screw fixation. Both the middle and lower PCT can provide ideal screw-tracts for lag screw fixation. In order to obtain the maximum anchoring strength, the upper positioned lag screw should be placed deep, while the lower positioned should be placed shallow.

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Cite This Study

Bai et al. (2026) studied this question.

synapsesocial.com/papers/69aa6f3c531e4c4a9ff595b0https://doi.org/10.1186/s13018-026-06718-2
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