Biomechanical effects of malposition of tuberosity fragments on the humeral prosthetic reconstruction for four-part proximal humerus fractures.

@article{Frankle2001BiomechanicalEO,
  title={Biomechanical effects of malposition of tuberosity fragments on the humeral prosthetic reconstruction for four-part proximal humerus fractures.},
  author={Mark A. Frankle and Daniel Jeffrey Greenwald and Blaine A. Markee and Leo E. Ondrovic and William E. Lee},
  journal={Journal of shoulder and elbow surgery},
  year={2001},
  volume={10 4},
  pages={
          321-6
        }
}
Variable outcomes in the prosthetic reconstruction of 4-part humerus fractures often can be attributed to inconsistent and nonanatomic tuberosity placement. To compare the effects of anatomic (anterior fin) versus nonanatomic (lateral fin) tuberosity placement, we developed a dynamic cadaver model for shoulder motion. With the use of a robotically driven, computer-controlled articulator, we tested external rotation torque in 5 fresh human shoulders. After evaluation of the intact shoulders, we… CONTINUE READING
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