Patellar tilt and subluxation in total knee arthroplasty. Relationship to pain, fixation, and design.

@article{Bindelglass1993PatellarTA,
  title={Patellar tilt and subluxation in total knee arthroplasty. Relationship to pain, fixation, and design.},
  author={David F Bindelglass and Jamie L Cohen and Lawrence D. Dorr},
  journal={Clinical orthopaedics and related research},
  year={1993},
  volume={286},
  pages={103-9}
}
Two hundred thirty-four primary total knee prostheses were evaluated with a 45 degrees merchant view to examine patellar position and fixation. Despite a standardized technique for obtaining roentgenographs, patellar position varied with leg position. Overall, 54.7% tracked centrally, 31.2% tilted, and 14.5% displaced. The incidence of these findings was the same whether the patella was domed or congruent. Neither pain scores nor fixation were affected by position. Postoperative tilt and… CONTINUE READING

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