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Bones of the Upper Limb: Radius01:09

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The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
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Updated: Jun 11, 2025

Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel
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Published on: May 23, 2025

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Incidental Triangular Fibrocartilage Complex Changes on Wrist MRI.

Lilah Fones1, Alexis Kasper1, Molly Milano1

  • 1Thomas Jefferson University, Philadelphia, PA, USA.

Hand (New York, N.Y.)
|September 28, 2024
PubMed
Summary
This summary is machine-generated.

Asymptomatic triangular fibrocartilage complex (TFCC) changes are common on wrist MRI, found in 44% of patients without ulnar-sided pain. Always correlate MRI findings with patient symptoms to avoid misdiagnosis.

Keywords:
diagnosisfracture/dislocationmagnetic resonance imagingtriangular fibrocartilage complexulnar-sided wrist painwristwrist painwrist trauma

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Area of Science:

  • Orthopedic imaging
  • Radiology
  • Musculoskeletal system

Background:

  • Triangular fibrocartilage complex (TFCC) changes on wrist MRI can occur without symptoms.
  • This study investigates the prevalence of asymptomatic TFCC changes.

Purpose of the Study:

  • To determine the rate of asymptomatic TFCC changes in patients undergoing wrist MRI for non-ulnar-sided wrist pain.
  • To compare this rate with patients experiencing ulnar-sided wrist pain.

Main Methods:

  • Retrospective review of 132 wrist MRI cases (CPT code 73221).
  • Analysis of demographics, symptoms, examination, trauma, and MRI findings.
  • Comparison between a primary cohort (non-ulnar-sided pain) and a control group (ulnar-sided pain).

Main Results:

  • 44% of patients without ulnar-sided wrist pain showed abnormal TFCC on MRI.
  • Abnormal TFCC findings were associated with older age.
  • 80% of patients with ulnar-sided wrist pain had abnormal TFCC on MRI.

Conclusions:

  • Abnormal TFCC findings on MRI are frequent in asymptomatic individuals.
  • Clinical correlation with patient symptoms is crucial for accurate diagnosis.
  • Patients should be informed about the high likelihood of incidental TFCC findings on wrist MRI.