Hand And Upper Extremity Conditions Flashcards
Name the bones of the forearm and upper arm.
Radius
Ulna
Humerus
Name the bones of the wrist.
Distal radius
Ulna
Eight carpal bones (hamate, capitate, trapezoid, trapezium, pisiform, lunate, triquetrum, and scaphoid.)
+ Associated joint capsule and several ligaments
Name the muscles of the arm.
Deltoid
Triceps
Anconeus
Biceps brachii
Brachialis
Brachioradialis
NOTE: The other muscles that originate in the forearm control the hand, and thus are considered extrinsic muscles of the hand
What is the difference between the blood supply to the right arm and left arm?
Right arm
Originates from the brachiocephalic artery, passes through the right subclavian artery, divides into the right arm’s axillary, brachial, radial, and ulnar arteries.
Left arm
Supplied by left subclavian artery, divides into left arm’s axillary, brachial, radial, and ulnar arteries.
Key difference: Right arm originates from the brachiocephalic artery, left arm does not.
Name the bones of the distal row of the wrist in order.
hamate, capitate, trapezoid, and trapezium
Name the bones of the proximal row of the wrist in order.
pisiform, lunate, triquetrum, and scaphoid.
What 7 muscles originate from the lateral epicondyle?
Extensor Supinators
Anconeus
Supinator
Extensor carpi radialis longus (ECRL)
Extensor carpi radialis brevis (ECRB)
Extensor carpi ulnaris (ECU)
Extensor digitorum (ED)
Extensor digiti minimi (EDM)
What 5 muscles originate from the medial epicondyle?
Flexor Pronators
Pronator teres
Flexor carpi radialis (FCR)
Flexor carpi ulnaris (FCU)
Palmaris longus (PL)
Flexor digitorum superficialis (FDS)
The main artery/ies supplying the hand and wrist is/are…
Radial and ulnar arteries
What are the 3 sensory receptors of the hand?
- Pacinian corpuscles, responsible for vibration
- Ruffini end organs, responsible for tension
- Merkel cells, responsible for pressure
What is the difference between intrinsic and extrinsic muscles of the hand?
Intrinsic muscles are the small muscles in the hand.
Extrinsic muscles are longer musculotendinous units that originate proximal to the hand.
A hand and upper extremity assessment includes an occupational profile, and assessment of psychosocial and coping status, and cognition.
In addition, observations can be extremely informative. What are 4 observations that should be made?
- Nonverbal communication
- Position of the injured extremity
- Posture and trunk
- Spontaneous use of UE and hand
- Guarding
- Scar
- Wounds
- Skin.
Name the following assessment/area of assessment commonly used in hand and upper extremity evaluation.
Available in numeric and visual analog scales, verbal rating scale, graphic representation, pain questionnaire.
Pain scales
Name the following assessment/area of assessment commonly used in hand and upper extremity evaluation.
Observations of size, depth, granulation tissue, drainage, odor, temperature
Wound assessment
Name the following assessment/area of assessment commonly used in hand and upper extremity evaluation.
Observations of color, size, flat/raised, adhesions
Scar assessment
Name the following assessment/area of assessment commonly used in hand and upper extremity evaluation.
Observation of color and trophic changes, palpation (pulse, capillary refill assessment, modified Allen’s test), and temperature assessment
Vascular assessment
Name the following assessment/area of assessment commonly used in hand and upper extremity evaluation.
Measurements of the forearm, wrist, fingers, and thumb; Active and passive goniometric measurements
Range of Motion (ROM)
Name the following assessment/area of assessment commonly used in hand and upper extremity evaluation.
Done either via circumferential (tape measure) and volumetric measurements (volumeter)
Edema
Name the following assessment/area of assessment commonly used in hand and upper extremity evaluation.
Often, the Semmes–Weinstein monofilament and two-point discrimination are used. Monofilament is used for nerve compression, and two-point discrimination is typically used for nerve laceration and recovery.”
Sensation
Name the following assessment/area of assessment commonly used in hand and upper extremity evaluation.
Grip strength, pinch strength, and manual muscle testing. These tests are not to be performed unless resistance has been approved by the referring physician, and testing is contraindicated before full healing of a fracture, ligament repair, tendon laceration, or tendon transfer, or as determined by the referring physician.
Strength testing
Grip strength test: Jamar dynamometer
Pinch strength test: Use pinch gauge device. Client is seated, elbow flexed at 90° with arm adducted at side, forearm in neutral position. Each test is repeated 3 times, and an average is calculated.
–Lateral pinch (key pinch): pinch meter is placed between the radial side of index finger and thumb.
–Three-point pinch (three-jaw-chuck pinch): pinch meter is placed between the pulp of the thumb and pulp of the index and middle fingers.
–Two-point pinch (tip-to-tip pinch): pinch meter is placed between the tip of the thumb and tip of the index finger.
Name the following assessment/area of assessment commonly used in hand and upper extremity evaluation.
strength is graded according to normal (5), good (4), fair (3), poor (2), and trace (1).
Manual muscle testing (MMT)
Name the following assessment/area of assessment commonly used in hand and upper extremity evaluation.
ability to manipulate items in the environment, ranging from gross coordination to fine coordination tasks. Standardized assessments include the O’Conner Dexterity Test, Nine-Hole Peg Test, Jebsen–Taylor Hand Function Test, Minnesota Rate of Manipulation Test, and Purdue Pegboard Test.
Coordination
_______________ consists of an array of clinical entities involving the shoulder region. This region is further divided into four subregions:
- Sternocostovertebral space
- Scalene triangle
- Costoclavicular space
- Pectoralis minor (coracopectoral) space.
Thoracic Outlet Syndrome (TOS)
Brachial plexus allows for individual neurons from spinal nerves to reach their respective peripheral nerve.
Use the different areas of the brachial plexus (e.g., trunks, cords) to complete the below.
- ______________ supplies the scapula.
- ______________ supplies the hand intrinsic muscles.
- The ______________ of the lower trunk supplies the medial cord.
- The ______________ of the ________ and ______________ supply the lateral cord.
- The ______________ supply the elbow and wrist flexors with the exception of the brachioradialis.
- The ______________ supply the posterior cord (which also supplies the brachioradialis).
- The ______________ supplies the elbow and wrist extensors.
- Upper trunk supplies the scapula.
- **Lower trunk supplies the hand intrinsic muscles.
- The anterior division of the lower trunk supplies the medial cord.
- The anterior divisions of the upper and middle trunk supply the lateral cord.
- The anterior divisions supply the elbow and wrist flexors with the exception of the brachioradialis.
- The posterior divisions of all trunks supply the posterior cord (which also supplies the brachioradialis).
- The posterior cord supplies the elbow and wrist extensors.