hand evaluation
TRANSCRIPT
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HAND EVALUATION
BY AMRIT KAUR
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Hand function is an important feature in humans over other primates who lack fine control and precision
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Bony Anatomy
Phalanges: 14 Sesamoids: 2 Metacarpals: 5 Carpals
– Proximal row: 4
– Distal row: 4
Radius and Ulna
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ANATOMY Muscles /Tendons
– Volar wrist- 6
– Dorsal wrist- 9 • 6 compartments
– Volar hand- 10
– Dorsal hand- dorsal interossei
Nerves - 3– Median
– Ulnar
– Radial
Arteries - 2
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Is it bone?
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Is it nerve?
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Is it the ligaments or joints?
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Is it muscle or tendon?
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HISTORY
Age Handedness Chief complaint Occupation Previous injury Previous surgery
Sx related to specific activities
What exacerbates What improves Frequency Duration
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Which part of hand is injured. Flexor tendon respond much more slowly to
treatment than extensor tendon . Within hand there is surgical no man’s land,
which is a region between the distal palmar crease and mid portion of middle phalanx of the finger.
Damage in this area require surgical repair and usually leads to formation of adhesive bands that restrict gliding.
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Red Flags
This section deals with screening the patient for possible serious pathologies that could cause wrist or hand pain. These conditions could warrant a referral, or consultation.
Infections Heat Swelling Pain Redness Inflammation
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Fracture/dislocation:Top five physical findings which are most useful in screening for wrist fracture.Localized tendernessPain on active motion Pain on passive motion Pain on grip Pain on supination Bottom line: Any one of the above findings associated with a history of trauma should be sent for radiographs
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OBSERVATION– Wrist “attitude”
• How do the carpals and metacarpals align with the distal radius and ulna?
• Is there symmetry?– Deformities , swelling, Muscle girth or presence of
atrophy. Posture -During the posture examination the physical
therapist should examine from the lateral, posterior, and anterior views looking at the position of the cervical and thoracic spine along with the shoulder, elbow, forearm, wrist, and hand.
Carrying angle Shoulder height
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PALMAR SURFACE
Creases Thenar and
Hypothenar Eminence
Arched Framework Hills and Valleys Web Spaces
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Cascade sign
Assure all fingers point to scaphoid area when flexed at PIPs
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Dorsal Hand and Wrist
Height of metacarpal heads Finger nails
– Pale or white=anemia or circulatory– Spoon shaped=fungal infection– Clubbed=respiratory or congenital heart
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Common hand and finger deformities Swan neck deformity Boutonniere deformity Ulnar drift Extensor plus
deformity Claw fingers Trigger finger Ape hand deformity
Bishop’s hand or benediction hand deformity
Drop wrist deformity Myelopathy hand Z deformity of the hand Dupuytrens contracture Mallet finger
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Palpation
– Bony and Soft Tissue Palpation• Are they where they should be?• Do they feel like they should feel?
– Circulatory and Neurological Evaluation• Hands should be felt for temperature
– Cold hands indicate decreased circulation
• Take pulse – radial artery• Pinching fingernails can also help detect circulatory
problems (capillary refill)• Hand’s neurological functioning should also be
tested (sensation and motor functioning)
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Range of motion The available arc of movement within a joint
which can be classified into: Active range of motion (AROM) Passive range of motion (PROM) Total active range of motion (TAROM), also
known as total active motion (TAM) Total passive range of motion (TPROM), also
known as total passive motion (TPM) Torque range of motion (TROM)
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TAROM or TAM-Defined as the total ROM achieved when all three joints—metacarpophalangeal (MCP), proximal interphalangeal (PIP) and distal interphalangeal (DIP) of a digit are actively flexed or extended simultaneously, minus any extension deficit at any of the three joints.
TPROM or TPM-Analogous to TAROM, however this measurement is achieved through passively moving the joint.
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TROM-Refers to a joint being moved passively through its full available ROM with a known constant force applied.
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Standard position for measuring
For finger and wrist measurements, position the elbow on a table at 90° and wrist in neutral.
For elbow pronation and supination, tuck arm into trunk with the forearm in mid position.
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InstrumentsGoniometerRuler/tape measureFluid goniometerMULE (microprocessor upper limb exerciser)—used as an assessment and rehabilitation tool
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Muscle testing
Weakness or disappearance of voluntary movement may be due to:Failure of the afferent nerveDestruction of muscle tissueIschemiaTendon ruptureTendon adhesions
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MeasurementManual muscle testingGrip strengthPinch grip
To test muscle power accurately the examiner must be familiar with theanatomy of the hand and arm, particularly:Origins and insertions of musclesThe general direction and line of pull of each muscleThe relative positions of muscle and tendonsNerve supply and possible anomaliesPossible trick movements
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IndicationsPeripheral nerve lesionsTendon transfersNeuromuscular conditions
ContraindicationsWhere movement or the application of resistance is not recommended (e.g. healing phase of tendon repair)
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Method of administrationEnsure the patient is positioned appropriatelyEnsure that the part proximal to the tested part is stabilizedSelect the muscle and joint movement required:Check that the PROM is normal/expectedDemonstrate to the patient what is expected
OBSERVE:Movement at the jointAny contraction of the muscle belly and tendon
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Palpate:Muscle contractionRecord muscle power:Ensure that the placement of the hand applying pressure is uniformApply pressure directly opposite the line of pull of the muscle being testedApply pressure gradually
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Factors that can affect accuracy includePainSwellingJoint mobility/ROMSensory loss
AdvantagesNo equipment requiredInexpensiveQuick to administer
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Functional assessment
In terms of functional impairment the loss of thumb function affect 40 % to 50 % of hand function.
Loss of index finger and middle finger function account for 20% of hand function, loss of ring finger and little finger function affect 10% of hand function.
Loss of hand account for about 90% loss of upper limb function.
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Function Hand function tests typically fall into two
categories: Norm-referenced tests-Objective grading
systems are used, mainly time as the critical measure of hand function. Researchers favour them, as they are quick and easy to administer and produce objective data.
Criterion-referenced tests- Descriptive standards are used to measure a patient’s performance. They need an experienced person to interpret the results and to achieve consistency with scoring.
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Normally wrist is held in slight extension (10-15 degree) and slight ulnar deviation and is stabilized in this position to provide maximum function for finger and thumb.
Excessive radial deviation can affect grip strength adversely.
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Flexion and sensation of ulnar digits are controlled by ulnar nerve and are more related to power grip.
Flexion and sensation of radial digits are controlled by median nerve and more related to precision grip.
The muscle of the thumb often used in both types of grips are supplied by both nerves.
In all cases of grip opening, opening of hand, or release of grip depends on radial nerve.
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Power grip
Indicator of hand function is measured by isometric grip.
IndicationsTo establish a baseline for treatmentTo monitor progressTo establish final outcome.
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ContraindicationsLess than 12 weeks after tendon repair or transferExcessive painPatients with active inflammatory disease.
ToolsJamar dynamometerVigorimeter
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Vigorimeter Measures grip strength using air pressure.
Three different-sized rubber bulbs attached via a tube to a manometer. Possibly more comfortable to use than the Jamar dynamometer and due to the ability to vary the sizes, may be better suited for children.
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TypesHook gripCylinder gripFistSpherical
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Pinch grip or precision grip
Provides a good indication of thumb function. Three different types:pure (otherwise known as tip pinch)Tripod ( chuck or three fingered pinch)key (otherwise known as lateral pinch)
Tools-pinch gauges
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ContraindicationsEarly tendon repairsEarly repairs of collateral ligamentsFirst 8 weeks after trapeziectomyExcessive painInflamed joints
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Tip pinch grip-The thumb is pinched against the pulp of the index finger whilst the other fingers are flexed.
Tripod pinch grip-Thumb pulp to index and middle finger pulp with remaining fingers flexed.
Key pinch grip-Thumb pulp to lateral aspect of proximal interphalangeal joint of the index finger, other fingers flexed
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Tests for dexterity and function
Moberg Nine-hole peg test Purdue pegboard Minnesota Rate of Manipulation Test The Serial Occupational Dexterity
Assessment (SODA)
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Other functional outcome measure Michigan hand outcome questionnaire. Functional status scale for hand Simulated activities of daily living
examination Sollerman Hand Function Test Jebsen Hand Function Test
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Oedema
oedema is measured to:Establish baselines for comparisonEvaluate a patient’s response to treatmentMonitor the course of a disease process
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Tools
Tape measure-Advantages: quick to use, cheap to purchase and able to provide information regarding specific segments.
Accuracy and reliability can be improved by: Calibration of tape measures Measure over anatomical landmarks
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Jeweller’s rings-Used to measure the circumference of joints. A range of different-sized jewellers rings are placed over the joints. Quick and easy to use, however expensive to purchase and only allow small joints to be measured
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Volumeter -Based on the Archimedes principle: ‘A body partly or completely immersed in a fluid displaces an amount of fluid equal to the apparent volume of that body.’
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Sensory testing
Types of sensory dysfunctionHypoaesthesia: diminished sensationParasthesia: abnormal sensationHyperaesthesia: abnormal sensationAnaesthesia: complete loss of sensation
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Purpose of sensory testing-To assist in diagnosisTo determine the extent of sensory lossTo determine the level of axonal regeneration (provocative tests, e.g.Tinel’s percussion test)To evaluate nerve conduction efficiency (threshold tests, electrophysiological tests)To evaluate end organ unity/function
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To determine level of somatosensory reorganization (ability to interpret stimuli)
To identify the need for surgical intervention
To identify splinting requirements To determine when to commence sensory
re-education To identify level of hand function
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Sensory testing is difficult due to:Subjective nature of the testsTechnical difficulties with the tests, e.g. vibration of the assessor’s hand during testing, variation in the application of force when utilizing the assessment t.ools
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Indications for testing sensibilityPeripheral/digital nerve repairNerve compressionNerve replantsFlaps/graftsBrachial plexus injuriesCrush injuries
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Precautions for testing sensibilityUnderlying vascular or neuropathic diseaseFatigueNegative attitude/poor motivationHypersensitivity/pain
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Scar
Burn scar index (Vancouver) Image panel assessment scale (photos) Self-rating scale for patients Non-invasive measurement of scar and skin
pliability (pneumatonometer and Derma-Durameter)
Numeric scar ratings scale (therapist scored)