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Wrist and Hand
Wrist Radiocarpal Mid-carpal (intercarpal) zmaintain length- tension relationship for hand musculature
Distal Radius Facets zLateral (46%) scaphoid zMedial (43%) lunate zInferior disk (11%) triquetrum
Radiocarpal Radius and Radioulnar disk (concave) Scaphoid (navicular), lunate, and triquetrum (proximal wrist bones)
Ligaments volar - thick, strong dorsal - thinner, fewer unique function extrinsic intrinsic
Ligaments Radiocarpal superficial deep
Ligaments Ulnocarpal complex meniscus homologue - radiotriquetral ligament triangular fibrocartilage - articular disk
Kinematics Extension distal carpals on fixed proximal carpals neutral (scaphoid-capitate close-packed)
Kinematics Extension scaphoid travels w/ distal carpals 45 0 ext. scaphoid & lunate close-packed scaphoid travels w/ proximal carpals
Kinematics Flexion opposite extension
Hand Flexor Tendons surrounded by synovial sheaths reinforced by pulleys (5/3) minimize force/pressure prevent bowstringing
Flexor Tendons 60 90 0 of PIP flexion 40% in tension in restraining pulley
Tendon Excursion and Pulleys
Sliding of flexor/extensor tendons proximal jts. > distal joints FS > FP Flexors > extensors Extrinsics > intrinsics
Pulley Disruption Bowstringing excursion at a joint weakness at other joints
Balance of Power Extrinsic vs. Intrinsics Intrinsic - clawing counteract extrinsics stabilize proximal phalanx tendons volar to AOR lumbricales critical for timing
Hand/Wrist Injuries CTD/RSI CTS inflammation in CT compressive neuropathy
Hand/Wrist Injuries Etiology of CTS forceful exertions repetitive*/prolonged activities awkward postures localized contact stresses vibration cold temp.
Carpal Fractures 80:20% load distribution between radius:ulna scaphoid (60-70%) hyperextension beyond 95 0 lunate
Finger Injuries Mallet Finger distal terminal tendon/slip rupture flexion of DIP
Finger Injuries Boutonniere (Button-Hole) Deformity dorsal synovitis /capsular distension zthinning & lengthening of central tendon
Finger Injuries Boutonniere (Button-Hole) Deformity zdorsal subluxation of proximal phalanx (PIP) zpalmar displacement (dislocation) of lateral bands of long extensors zMCP / PIP DIP /
Finger Injuries Swan-Neck Deformity zFlexor synovitis flexor forces on MCP zstretching of collateral ligaments and palmar plate at PIP
Finger Injuries Swan-Neck Deformity zdorsal displacement of lateral bands of extensors zintrinsic tightening with MCP flexion zposition of lateral bands pull of extensor tendon z reciprocal DIP flexion
Finger Injuries Swan-Neck Deformity zMCP PIP / DIP
Thumb Injuries Gamekeeper’s/skier’s thumb MCP ulnar collateral ligament 2 0 to tensile loading (chronic or acute) excessive abduction/hyperextension
Thumb Injuries Bennett’s Fx fx subluxation of trapeziometacarpal joint intraarticular fx of 1st MET axial compression
Wrist and Hand Conditions Chapter 13. Wrist Articulations Radiocarpal: Radius with the Scaphoid, Lunate, Triquetrum. Intercarpal Distal Radioulnar Triangular.
Wrist and Hand. Wrist Wrist is a joint complex consisting of radio-carpal joint and many relationships between the carpal bone Review of carpals
Wrist and Hand. Wrist Wrist is a joint complex consisting of radio- carpal joint and many relationships between the carpal bones Review of carpals Proximal.
Copyright © F.A. Davis Company Chapter 17 Wrist, Hand, and Finger Pathologies.
Just if you thought you were having a bad day…. https://www.youtube.com/watch?v=r-2oPR3fptQ.
Wrist and Hand Wrist is the most complex joints of the body due to the numerous joints combined to create one.
FOREARM, WRIST, AND HAND Common Injuries. Barton Fracture Fracture to the distal radius with dislocation of radiocarpal joint Most common fracture/dislocation.
The Wrist, Hand and Fingers. BONES l FOREARM Radius – lateral and thumb side Ulna – medial and pinky side.
Wrist Anatomy Distal end of radius (and ulna) and the carpal bones Proximal row Scaphoid, lunate, triquetrum, pisiform Distal row Trapezium, trapezoid,
Sports-Related Hand and Wrist Injuries Matthew Close, DO Primary Care Sports Fellow Steadman Hawkins Sports Symposium June 10 th, 2011.
Injuries to Hand, Wrist and Forearm - Mr. Brewer.
IUSM-NW F12 1 Finger Deformities Ernest F. Talarico, Jr., Ph.D. Associate Director of Medical Education Associate Professor of Anatomy & Cell Biology Associate.
Bones, Joints, and Muscles of the Forearm, Wrist, and Hand.
Wrist and Hand Unit Anatomy, Injuries, Evaluations, Treatments, and Rehabilitation.
Chapter 21 Wrist and Hand. Importance of the Hand The hand is extremely complex and requires fine balance of all structures to function properly. Finger.
Lecture 9 The Forearm and Wrist. Anatomy Review Distal Radioulnar Joint Uniaxial pivot joint Pronation and supination triangular fibrocartilage disc.
The Forearm, Wrist, Hand, and Fingers 5/3/2016Sports Medicine - Mr. Cronin1.
Chapter 7 - Upper Extremity Injuries Impair peoples’ ability to manipulate the environment. Upper extremity design for motion not for the support of large.
Wrist and Forearm Lecture 15. The Wrist and Hand the wrist and hand are used extensively in activities of daily living and in nearly all sports The anatomy.
Part Three. Special Tests 1. Compression test 2. Flick/tap test 3. Percussion test 4. Collateral stress (wrist) 5. Collateral stress (fingers) 6. Watson.
MUN Orthopedics HAND &WRIST INJURIES. MUN Orthopedics.
Hand and Wrist Mrs. Dobbins. Upper Extremity Shoulder Gleniod Humeral joint Humerus Gleniod Fossa Scapula (Shoulder Blade) Clavicle (Collarbone) Upper.
1 Myology Myology of the Wrist and Hand. 2 Anatomical Review Distal Ulna and Radius (Notes in Lecture 3)
Elbow, Forearm, Wrist & Hand. Dislocated Elbow n Def: Dislocation of the radius and/or ulna. Usually it is a posterior dislocation of both bones. n MOI:
The Forearm, Wrist, Hand and Fingers Westfield High School Houston, Texas.
Sports Medicine Hand Injuries 1. Daily Objectives Content Objectives List the anatomical structures responsible for movement of the hand and phalanges.
Wrist/Hand Sports med 2. Articulations Radiocarpal – Flexion, extension, abduction, and circumduction Carpal – Gliding joints – Stabilized by anterior,
Splinting for the fingers Somaya Malkawi, PhD. Introduction Finger based splints: Cross the PIP and/or DIP leaving the MCP joint free Finger based splints:
Wrist and Hand Chapter 18 May Anatomy Bones Carpal Bones are irregular shaped bones that articulate between the radius and ulna of the arm and the.
Chapter 20: The Elbow, Wrist, and Hand. Copyright ©2004 by Thomson Delmar Learning. ALL RIGHTS RESERVED. 2 Common Injuries Contusions Olecranon bursitis.
Wrist/Hand Anatomy Carpals-8 Scaphoid Trapezium Trapezoid Capitate Hamate Pisiform Triquetral Lunate Metacarpals-5 Phalanges -
Fractures and dislocations of the carpus By Gatobu 6A.
What are the four muscles of the rotator cuff?. Subscapularis Infraspinatus Teres Minor Supraspinatus.
Recognition and Management of Elbow Injuries. Olecranon bursitis Cause: result of direct blow; superficial location makes it prone to injury S&S: Care:
WRIST COMPLEX Bones and Joints of the Wrist. Proximal Row of Carpal Bones Review- testable Review- testable Scaphoid: Scaphoid: Most lateral. Forms floor.
Carpal Instability Weiling Chang. Carpal Instability - Definition Inability to maintain normal alignment and distribute load under physiologic conditions.
The Forearm,Wrist, and Hand Sports Medicine 2. Anatomy Bones- Bones- Metacarpals Radius and Ulna Muscles- Muscles- Flexor carpi radialis – flexes.
Vascular Injuries Ligament Injuries Dislocations Fractures.
The hand and the wrist are the most active and the most intricate parts of the upper extremity. (Magee, David; Orthopedic Physical Assessment 4 th Ed)
Wrist, Hand, and Fingers Sports Medicine I. Anatomy Site of most minor, yet irritating conditions Site of most minor, yet irritating conditions Wrist.
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Wrist and Hand. Wrist and Hand Bones Wrist (Carpals) Scaphoid (Navicular) Lunate Triquetral Pisiform Trapezium Trapezoid Capitate Hamate.
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Wrist Joint. The radiocarpal joint and the midcarpal joint create the wrist. The radiocarpal joint consists of the distal end of the radius and the radioulnar.
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Fractures from Hand to Elbow. Concave articular surface MC PP MP DP Biconcave with a median ridge Sesamoid bone, found on the palmar surface. Found within.
Chisholm Institute Department of Health and Community Care Diploma of Remedial Massage HLT50307 Anatomy & Physiology Anatomy of the Wrist & Hand 1Chisholm.
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