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Related Experiment Video

Updated: Apr 8, 2026

Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel
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Acute severe valgus instability without elbow dislocation.

Chul-Hyun Cho1, Ki-Cheor Bae1, Hee-Uk Ye1

  • 1Pain Research Center, Department of Orthopedic Surgery, Dongsan Medical Center, School of Medicine, Keimyung University, Daegu, South Korea.

Journal of Shoulder and Elbow Surgery
|June 28, 2015
PubMed
Summary
This summary is machine-generated.

Acute valgus instability without dislocation involves complete tears of the medial collateral ligament (MCL) and flexor-pronator tendon (FPT). Primary repair effectively restores elbow stability and function.

Keywords:
Elbowflexor-pronator tendoninstabilitymedial collateral ligamentvalgus

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Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Traumatology

Background:

  • Acute valgus instability without elbow dislocation is a distinct injury pattern.
  • Understanding the pathoanatomy is crucial for effective treatment.
  • Previous research has focused on dislocations, leaving this specific injury less explored.

Purpose of the Study:

  • To investigate the pathoanatomy of acute valgus instability without elbow dislocation.
  • To evaluate clinical outcomes following operative treatment for this condition.
  • To correlate injury patterns with functional recovery.

Main Methods:

  • Retrospective analysis of seven patients with acute severe valgus instability.
  • Surgical repair of medial collateral ligament (MCL) and flexor-pronator tendon (FPT) using suture anchors.
  • Evaluation of ligament, capsule, tendon, and bone structures via MRI and intraoperative findings.
  • Clinical outcomes assessed using Mayo Elbow Performance Score and DASH score.

Main Results:

  • All patients demonstrated complete tears of the MCL and FPT, with associated anterior capsule damage.
  • Two patients also had lateral collateral ligament complex tears and significant instability.
  • Bone contusions were present in six patients.
  • Excellent functional outcomes were achieved, with a mean Mayo Elbow Performance Score of 95.7 and DASH score of 12.0.
  • Patients returned to work within 4 months post-surgery.

Conclusions:

  • Acute severe valgus instability without dislocation is characterized by complete MCL and FPT tears.
  • Primary surgical repair of medial structures with suture anchors is a reliable treatment.
  • This approach effectively restores elbow stability and functional outcomes.