Can ulnar variance be used to detect overstuffing after radial head arthroplasty?

  title={Can ulnar variance be used to detect overstuffing after radial head arthroplasty?},
  author={Jun-Gyu Moon and Jin-Ho Hong and Nitin Bither and Won-Yong Shon},
  journal={Clinical orthopaedics and related research},
  volume={472 2},
BACKGROUND Overstuffing of the radiocapitellar joint during metallic radial head arthroplasty has been reported to cause loss of elbow flexion, capitellar erosion, and early-onset osteoarthritis. Although this is known, there is no agreed-on measurement approach to determine whether overstuffing has occurred. QUESTIONS/PURPOSES We therefore hypothesized that overlengthening the radial head during radial head arthroplasty changes the ulnar variance in the wrist. METHODS Seven cadaveric radii… CONTINUE READING
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Validation of the lesser sigmoid notch of the ulna as a reference point for accurate placement of a prosthesis for the head of the radius: a cadaver study

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