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Scaphotrapeziotrapezoid Ligament

From WikiSM

Description

Palmar radiocarpal ligaments are illustrated. The scaphocapitate ligament is marked on the left[1]
The palmar midcarpal ligaments including Scaphotrapeziotrapezoid Ligament, Scaphocapitate Ligament, Triquetrocapitate Ligament, Triquetrohamate Ligament[2]

Name

  • Scaphotrapeziotrapezoid Ligament
  • STT Ligament
  • STT Ligament
  • Scaphotrapezial-Trapezoid Ligament
  • Scapho-Trapezio-Trapezoid Ligament

General

Attachments

  • Originates at the radial/ulnar surfaces of the distal pole of the scaphoid
  • Inserts distally at the volar/radial surfaces off the trapezium, volar surface of the trapezoid

MRI Features

  • Best appreciated in coronal, sagittal or 3D imaging or on MR arthrography[3]
  • Appears as a hypointense structure

Clinical Significance

See Also

References

  1. ↑ Case courtesy of Matt Skalski, Radiopaedia.org, rID: 43845
  2. ↑ Image courtesy of orthobullets.com
  3. ↑ Bateni C, Bartolotta R, Richardson M, Mulcahy H, Allan C. Imaging key wrist ligaments: what the surgeon needs the radiologist to know. AJR Am J Roentgenol. 2013;200(5):1089-95. doi:10.2214/AJR.12.9738
Created by:
John Kiel on 12 January 2025 18:42:59
Authors:
Last edited:
8 June 2026 16:07:24
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