Test 2 Flashcards
Compression neuropathy is the process by which a nerve becomes entrapped as it passes through a narrow tunnel or passage
Epineurium -> Perineurium -> Endonerium -> Myelin sheath -> Axon
There are 3 types of nerve injuries
1) _____ is the least severe (Days to weeks recovery) and involves focal damage of the ____ around the axon but NOT the connective tissue sheath
^** AKA first degree
2) ___ is when the axon itself is injured and recovery takes months
^** AKA second degree
3) ____ is complete disruption of the axon with little recovery
^** AKA third degree (endoneurium becomes destroyed)
1) Neurapraxia, myelin fibers
2) Axonotmesis
3) Neurotmesis
Cervical nerve root compression
Usually due to disc bulging or herniation and the disc usually ruptures ____ in direction causing compression on the nerve roots as it exists the intervertebral foramen
^** SO a C4-C5 disc rupture will affect the ____ nerve root
This causes cervical RADICULOPATHY that is characterized by a pinched or irritated nerve in the neck causing pain, numbness, or weakness radiating into the CHEST or ARM
To check for this, perform the ___ maneuver which is performed via placing the neck in ____, rotating ___ the side of the lesion and side bending ___ the side of the lesion and pressing down
Posterior-laterally
C5
Spurlings, Extension, towards, towards
**Know the distribution of the cervical nerves for C4-T1 and their MOTOR, SENSORY, and REFLEX distributions
Everything makes sense except for motor stuff…. Realize C5 is delts and biceps, C6 does Wrist ____ and elbow ____, C7 does wrist ___ and elbow ___ and finger ____, C8 does finger ____ and T1 does finger abduction
Also know the LOWER extremity nerves for MOTOR and REFLEX
Page 15 - Extremity Compression Neuropathy Lecture PPT
C6-Extension, flexion
C7-flexion, extension, extension
C8- flexion
Page 44 ^** Same lecture
The Radial nerve provides motor to the ____ and wrist ____ors and sensation to the ____ of the hand via the posterior interosseous nerve
^** Therefore if injured you will get wrist ____ (since extensors no longer work) and tricep pain/numbness/etc and weakness in ____ (which remember occurs via the ____ muscle)
The two places it can become entrapped include
1) High on the ____ from either a fracture of the bone, of compression of the nerve near the ___ groove
^**Function returns in 4-5 months
2) ___ syndrome is due to compression of the _____ branch of the radial nerve as it passes under the ____ muscle at the Arcade of Frohse
These patients will obtain their injury from repeated rowing or sports and have pain and tenderness 5cm distal to the ____ with wrist drop and pain upon resisted ____ occurring
** Note that sensory loss will be much more prominent for an injury high on the humerous compared to that of the radial tunnel since the posterior interosseous branch is mainly a MOTOT branch**
Triceps, extensors, dorsum
Drop, elbow flexion, brachioradialis
1) Humerous, spiral
2) Radial tunnel, Posterior interosseous, supinator
Lateral epicondyle, supination
The Median nerve provides motor to the forearm and wrist ____ and ____nation along with thumb abduction and ____
Sensation is to the index finger
The 3 places it can become entrapped include
1) ____ syndrome occurs as the nerve passes between the superficial and deep heads of the pronator ___ muscle
^** These patients will have pain in the mid/proximal forearm and possible sensory abnormalities in the radial three and half digits
In other words, pain during resisted forearm ____ is indicative
2) Anterior interosseous syndrome is a deep ____ branch of the median nerve so you would have ONLY motor problems like not being able to flex the forearm or fingers and NO sensory problems
^** One test to determine an anterior interosseous syndrome is the ____ since the finger can’t flex
3) Median nerve entrapment aka ___ syndrome and due to compression under the ____
^** These patients will often DROP things and pain and tingling in the radial three and half digits along with wrist pain
You can use an EMG to determine if this is the problem
To diagnosis a carpal tunnel SD, perform the phalens test, tinels sign, or 2pt discrimination (unable to distinguish 2 points on a caliper if closer than 5 mm)
Flexion, pronation, opposition
1) Pronator, teres
Pronation
2) Motor
OK sign
3) Carpal tunnel, flexor retinaculum
The Ulnar nerve provides motor to the ulnar side of the forearm and hand flexors
The DEEP branch provides MOTOR innervation for the ___ muscle and the ____
The SUPERFICIAL branch provides SENSORY to the ___ fingers
The 2 places it can become entrapped include the:
1) ____ syndrome between the medial epicondyle, medial trochlea, olecranon, and ulnar colalteral ligament
^** These patients will present with 4th and 5th digit parasthesia, medial elbow pain, + Tinels sign at the elbow, and pain reproduced during elbow ___ and wrist ____
Use ____ sign to diagnosis cubital tunnel syndrome
interosseous, adductor pollicis
4th and 5th (ring and pinkie)
1) Cubital tunnel
Flexion, extension
Froment’s sign
_____ syndrome is the compression of the brachial plexus or the subclavian vessels
Teats include: EAST, Adson’s, wrights hyperabduction, Military/costoclavicular
EAST tests for the ____
Adsons Test looks for S.A entrapment and if looking towards = ___ and away = ___
Hyperabduction = ___
Costoclavicular = ____
Thoracic outlet
Subclavian A
1st rib, Tight scalenes
Pec minor
1st rib and clavicle
Name the nerve and it distribution
1) ____ nerve presents with pain along the LATRAL aspect of the leg and FOOT DROP (with slapping gait) and plantarflexion and inversion can cause pain with L___-____
2) ____ compression nerve causes ANTERIOR TARSAL TUNNEL SYNDROME due to compression of the deep fibular nerve at the ____ with L___-___
^** Patients will have pain over the ____ aspect of the foot and pain between the 1st and 2nd toes along with weak extensor digitorum brevis (not much motor function)
3) ____ nerve compression causes TARASL TUNNEL SYNDROME due to entrapment behind the medial malleolus with the overlying _____ retinaculum with L___-____
^** Symptoms will present on the ___ aspect of the foot and toes
** DON’T CONFUSE anterior tarsal tunnel vs tarsal tunnel syndrome and note the differences between EXTENSOR and FLEXOR retinaculum
4) _____ nerve compression causes ____ paresthetica due to compression under the ___ ligament at the inguinal canal with L__-___
^** This is a ____ only innervation nerve that causes loss of sensation from the anterolateral ___ down to the knee
1) Common Fibular, L4-S2
2) Deep fibular, Inferior extensor retinaculum, L4-S2
Dorsomedial
3) Posterior tibial, Flexor, L4-S2
Plantar
4) Lateral femoral cutaneous, Meralgia, Inguinal, L2-L3
Sensory, thigh
For the upper extremities, name the dermatome level
1) Superior shoulder
2) Lateral arm over deltoid
3) Lateral forearm
4) Middle finger
5) Ring/little finger and medial forearm
6) Medial arm
Also Know L1-S2 for lower extremities
1) C4
2) C5
3) C6
4) C7
5) C8
6) T1
The ____ test has the patients head and neck in a neutral position and axial loading force produces pain/paresthesia/numbness in ___ and indicates nerve entrapment
Compression, UEs
PTP right = Rotated R
Remember, type 1 mechanics = TONGO
^** Type One Neutral Grouped Opposite direction
Type 2 = Not-neutral, Grouped Same direction
1) OA = _____ mechanics
^** Which means there is a FLEXION and EXTENSION component (the modified part that follows type 2) but they go in OPPOSITE directions (the type 1 part)
EX: OA F Rr Sl
2) AA = _____ mechanics
^** AKA AA Rl or Rr
3) C2-C7 = _____ mechanics
^** Which means there is a FLEXION and EXTENSION component and they go in the SAME direction
^** The reason why this could be considered modified type 2 is because often the cervical vertebra are not dysfunction in groups
1) Modified type 1
2) Rotation only
3) Type 2
For tests looking at thoracic outlet syndrome
1) Adsons test looks for ____ entrapment
Have patient extend and rotate TOWARDS the affected side while feeling radial pulse if pulse diminishes it’s entrapment via the ____
If patient looks away it’s entrapment via the ____
2) Wrights hyperabduction tests for compression via ____
3) Halstead test looks for entrampent via the ___ and ____
1) Subclavian a.
1st rib
Tight scalenes
2) Pec minor
3) Clavicle and 1st rib
For ribs, Inhalation SDs are the most common
For a ____ handle ME treatment, contact between the 2 heads of the SCM, flex head, and encourage exhalation and resist inhalation
For a ___ handle ME, contact LATERAL to the SCM and flex head and SB ___ the SD rib, and encourage exhalation and resist inhalation
Pump
Bucket, towards
____ syndrome is the second most common compression neuropathy and involves the ___ nerve, and common in ____ type of motions that involve the ____ compression on the tunnel
Test using tinnels sign or Froments sign which tests the ____ since that is weak in ulnar nerve palsy
Cubital tunnel, ulnar, pitching, flexor carpi ulnaris
Adductor pollicis
Posterior glide of the radius is coupled with ____nation and ____ion and anterior glide is coupled with ____nation and ____ion
The most common SD is a ____ radial head
Note that adduction and abduction of the elbow is referenced to the wrist so an adduction of the elbow as the wrist move in and elbow out aka VARUS force and abduction is a VALGUS force
Prontation/extension, Supination/flexion
Posterior
If you have compression of the common fibular nerve, it will be compressed at the ____
Checking for gastroc vs soleus tightness, you want to ___ the patients foot and if you can not while in full extension, it is a tight ___, then bring the patients knee into slight flexion and dorsiflex again, and if inability to dorsiflex then it is a tight ____
Fibular head
Dorsiflex, Gastroc, Soleus
For a posterior fibular head SD, ME and HVLA asks you to place the patient into the barrier which is ____version, ____flexion, and ____ rotation and then for ME have the patient move into opposite position and for HVLA you bring knee into flexion with hand in the popliteal crease (MCP on fibular head) and apply a HYPER____ thrust to drive the fibular head anterior
Eversion, dorsiflexion, external, hyperFLEXION