Does proximal versus distal injury location of the medial ulnar collateral ligament of the elbow differentially impact elbow stability? An ultrasound-guided and robot-assisted biomechanical study.

Journal: Journal of shoulder and elbow surgery
Published Date: Oct 1, 2022

Abstract

BACKGROUND: The location (proximal vs. distal) of elbow medial ulnar collateral ligament (MUCL) tears impacts clinical outcomes of nonoperative treatment. The purposes of our study were to (1) determine whether selective releases of the MUCL could be performed under ultrasound (US) guidance without disrupting overlying soft tissues, (2) assess the difference in medial elbow stability for proximal and distal releases of the MUCL using stress US and a robotic testing device, and (3) elucidate the flexion angle that resulted in the greatest amount of medial elbow laxity after MUCL injury.

Authors

  • Thomas H Rogers
    Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA.
  • Alexander W Hooke
    Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA; Biomechanics Core Facility, Mayo Clinic, Rochester, MN, USA.
  • Daniel S Jacobson
    Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA; Biomechanics Core Facility, Mayo Clinic, Rochester, MN, USA.
  • James S Fitzsimmons
    Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA; Biomechanics Core Facility, Mayo Clinic, Rochester, MN, USA.
  • Daniel C Austin
    Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA.
  • Jacob L Sellon
    Department of Physical Medicine & Rehabilitation, Mayo Clinic, Rochester, MN, USA.
  • Shelby E Johnson
    Department of Physical Medicine & Rehabilitation, Mayo Clinic, Rochester, MN, USA.
  • Mark E Morrey
    Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA.
  • Joaquin Sanchez-Sotelo
    Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA.
  • Shawn W O'Driscoll
    Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA.
  • Christopher L Camp
    Department of Orthopedic Surgery, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.

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