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ALL THINGS WRIST MI Zucker, MD. A dr Z Lecture INJURIES of the WRIST Fractures and ligament injuries of the distal radius and ulna and the carpal bones.

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Presentation on theme: "ALL THINGS WRIST MI Zucker, MD. A dr Z Lecture INJURIES of the WRIST Fractures and ligament injuries of the distal radius and ulna and the carpal bones."— Presentation transcript:

1 ALL THINGS WRIST MI Zucker, MD

2 A dr Z Lecture

3 INJURIES of the WRIST Fractures and ligament injuries of the distal radius and ulna and the carpal bones.

4 NORMAL AP Three smooth carpal arcs Inter-carpal spaces of 0-2 mm

5 NORMAL LATERAL Straight line bisecting radius-lunate-capitate Dorsal border- triquetrum Smooth dorsal and volar borders of radius and ulna

6 The RADIUS The most commonly fractured wrist bone in all age groups

7 COLLES Fracture Fall on outstretched hand fractures distal radius with dorsal angulation; associated ulna styloid fracture in 2/3

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10 SMITH Fracture Fall on back of hand, much less common than Colles. “ Reverse Colles”

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12 TORUS Fracture Most common kid fracture of the wrist. Fall on outstretched hand.

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15 SALTER-HARRIS Injuries SH II of the radius is most common of the wrist SH’s

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17 SCAPHOID FRACTURES Second most common wrist fracture, most common carpal fracture. 70 % of carpal fractures. Watch out for additional fractures!

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19 TRIQUETRUM Fracture Second most common carpal fracture, but only 15 %

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21 HAMATE HOOK Fracture From twisting ulnar side of wrist as in golf swing

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23 LIGAMENT INJURIES A spectrum of injuries caused by fall on outstretched hand

24 SCAPHO-LUNATE DISSOCIATION Most common, takes the least force. Scapho-lunate distance exceeds 4 mm

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26 PERILUNATE DISLOCATION Interruption of three arcs on AP, loss of radius-lunate-capitate relationship on lateral

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29 LUNATE DISLOCATION 5 X less common than perilunate. On AP, lunate becomes triangle shaped and on lateral, radius-lunate-capitate relationship is lost

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32 GOODBYE Copyright 2004 MI Zucker, MD


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