Joints of the Proximal Carpal Row

Description

Normal anatomy of the carpal bones. Diagram of the wrist (frontal view) shows the eight carpal bones and the three carpal arcs (Gilula arcs), which are shown as pink (arc I), blue (arc II), and red (arc III) lines. C (capitate), H (hamate), L (lunate), P (pisiform), S (scaphoid), Tm (trapezium), Td (trapezoid), Tr (triquetrum)

Wrist radiograph with carpal bones labeled

Name

• Joints of the Proximal Carpal Row
• Joints of the Proximal Carpus

General

• Connect the relatively flat/ planar surfaces of the scaphoid, lunate, triquetrum
• Contributes to the intercarpal joints of the hand

Scapholunate Joint

• Articulation between the Scaphoid, Lunate
• Stabilized by the Scapholunate Ligament

Lunotriquetral Joint

• C shaped wrist joint composed of the lunate and triquetrum
• Stabilized by the Lunotriquetral Ligament

Pisotriquetral Joint

• Pisiform articulates with the palmar of the triquetrum
• Pisiform lies within the tendon of flexor carpi ulnaris

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Clinical Significance

Scapholunate Joint

• Scapholunate Instability
• Scapholunate Joint Injection
• Dorsal Intercalated Segmental Instability (DISI)
• Scapholunate Advanced Collapse (SLAC)

Lunotriquetral Joint

• Volar Intercalated Segmental Instability (VISI)

Pisotriquetral Joint

• Pisiform Ligament Complex syndrome

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See Also

• Wrist Anatomy Main
• Physical Exam Wrist
• Hand Pain Main

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