Wrist and Hand Flashcards
Distal Radioulnar Joint: classification
Structure: synovial
Subtype: pivot
Function: diarthrotic
Axis: uniaxial
Distal Radioulnar Joint: ROM
Pronation 70-90º
Supination 90º
Distal Radioulnar Joint: Resting position
10º supination
Distal Radioulnar Joint: Closed-Pack position
Full supination/pronation
Distal Radioulnar Joint: Capsular Pattern
Supination = Pronation
Distal Radioulnar Joint: Articular surfaces
Distal ulna (convex)
Ulnar notch of radius (concave)
=> Concave on Convex
Distal Radioulnar Joint: Ligaments
Anterior Radioulnar
Posterior Radioulnar
Interosseous membrane
Distal Radioulnar Joint: Joint Mobs
Dorsal glide (increase supination) Volar glide (increase pronation)
Radiocarpal/Ulnomeniscotriquetral Joints: Classification
Structure: synovial
Subtype: condyloid
Function: diarthrotic
Axis: biaxial
RC/UMT Joints: ROM
Flexion: 80º
Extension: 70º
Radial deviation: 20º
Ulnar deviation: 30º
RC/UMT Joints: Resting postion
Slight flexion and ulnar deviation
RC/UMT Joints: Closed pack position
Full extension
RC/UMT Joints: Capsular pattern
Flexion = Extension
RC/UMT Joints: Articular surfaces
Carpals: Convex (lunate and scaphoid –> radius; triquestrum –> ulna)
Distal radius and ulna: Concave
=> convex on concave
RC/UMT Joints: Ligaments
Radial collateral Ulnar collateral Transverse carpal Palmar radiocarpal Intercarpal
RC/UMT Joints: Joint Mob’s
Distraction Dorsal glide (flexion) Volar glide (extension) Radial glide (ulnar deviation) Ulnar glide (radial deviation)
Intercarpal/Midcarpal Joints: Classification
Structure: synovial
Subtype: planar
Function: diarthrotic
Axis: nonaxial