Upper/lower Limb Flashcards
What is the effect on tone after an upper motor neurone lesion?
Hypertonia
What is the effect on tone after a lower motor neurone lesion?
Hypotonia
For shoulder abduction, what myotomes and muscles are involved?
C5 and deltoid muscles
For shoulder adduction, what myotomes and muscles are involved?
C6/C7 and teres major/ latissimus dorsi/ pectoralis major
For elbow flexion, what myotomes and muscles are involved?
C5/C6 and biceps brachii
For elbow extension, what myotomes and muscles are involved?
C7 and triceps brachii
For wrist flexion, what myotomes and muscles are involved?
C6/C7 and flexors of wrist
How is power scored?
MRC Muscle Power Scale
What myotomes are involved in the biceps reflex?
C5, C6
What myotomes are involved in the triceps reflex?
C7,C8
What myotomes are involved in the supinator reflex?
C6
Where is the biceps tendon found?
Medial aspect of antecubital fossa
Where is the triceps tendon found?
Superior to Olecranon process of ulna
Where is brachioradialis tendon found ( for supinator reflex) ?
Posterolateral aspect of wrist - 4 inches from base of thumb
What is the effect on reflexes after a lower motor neurone lesion?
Areflexia
What is the effect on reflexes after a upper motor neurone lesion?
Hyperreflexia
Where is the C5 dermatome found?
Lateral aspect of lower edge of deltoid muscle ( regimental patch)
Where is the C6 dermatome found?
Palmar side of thumb
Where is the C7 dermatome found?
Palmar side of middle finger
Where is C8 dermatome found?
Palmar side of little finger
Where is T1 dermatome found?
Medial aspect of antecubital fossa proximal to medial epicondyle
Where is T2 dermatome found?
Axilla
What spinal nerve roots are involved in the patellar reflex?
L2-L4
What spinal nerve roots are involved in the Achilles reflex?
S1-S2
Where is the L2 dermatome found?
Lateral aspect of thigh
Where is the L3 dermatome found?
Lower medial aspect of thigh
Where is the L4 dermatome found?
Medial aspect of leg, medial foot and great toe ( REMEMBER- L3 to the knee, L4 to the floor!)
Where is L5 dermatome found?
Lateral aspect of leg , mid dorsum of foot, middle three toes
Where is the S1 dermatome found?
Little toe, lateral foot and sole of foot
Where is the S2 dermatome found?
Back of upper leg and thigh
What action at the hip joint does the psoas major and iliacus allow? What nerve is involved?
Flexion, femoral nerve
At the hip joint, what action does the gluteus maximus allow? What nerve is involved?
Extension, inferior gluteal nerve
At the hip joint, what action does the gluteus medius and minimus allow? What nerve is involved?
Abduction , superior gluteal nerve
At the hip joint, what action do the muscles adductor longus/ brevis/ Magnus allow? What nerve is involved?
Adduction, obturator nerve
What action does the obturator externus muscles allow?
Internal rotation
What action does the obturator internus, Piriformis, gemellus muscles and quadratus femoris allow?
External rotation
What Test is used to assess the hip abductors?
Trendelenburg Test
What would a positive trendelenburg test show?
If there’s weakness in hip abductors, will be unable to stabilise hip on that side.
Pelvis will sag towards unsupported side.
What movement at the ankle joint do the muscles tibialis anterior, EHL, EDL allow? What nerve is involved?
Dorsiflexion, deep peroneal nerve
What nerve is involved in plantarflexion?
Tibial nerve
At what joint does inversion of the ankle take place?
Subtalar joint
What manoeuvre can patients do to elicit a stronger patellar reflex?
Jendrassik manoeuvre ( clench teeth + flex both sets of fingers in hook form)
Describe the motor and sensory loss after a femoral nerve lesion.
Motor loss- quadriceps paralysis - weakness of knee , difficulties climbing up and down stairs
Sensory loss- anterior and medial thigh, medial leg, medial foot
Describe the motor and sensory loss after an obturator nerve lesion?
Motor loss- paralysis of adductors , cross legging affected
Sensory loss- pelvis diseases, ovarian tumours can cause medial thigh pain
Describe the motor and sensory loss after a common peroneal nerve lesion?
Motor loss- Foot drop ( extensors and Evertors paralysed )
Sensory loss- anterior and lateral leg, dorsum of foot
Describe the motor and sensory loss after a tibial nerve lesion?
Motor loss- Hamstring muscles , posterior leg muscles and sole of foot
Sensory loss- sole of foot
What injuries could affect the whole sciatic nerve?
Pelvic fracture, hip joint dislocation, penetrating injuries
What is the motor effect after a whole sciatic nerve injury?
Paralysis of Hamstrings + muscles below knee
Knee flexion affected
What happens to the foot after a whole sciatic nerve injury?
Foot drop
What is the sensory loss after a whole sciatic nerve injury?
Loss below knee except narrow area on medial leg and foot ( saphenous nerve area)
What is sciatica and what causes it?
Pain radiating from posterior back into buttock , posterior/lateral thigh and into leg
Caused by herniated lumbar intervertebral disc which compresses on L5-S1 part of sciatic nerve
Name the borders of the femoral triangle?
Superior- inguinal ligament
Medial- Adductor longus
Lateral- Sartorius
What is the dermatome region for L1?
Area of inguinal ligament
What is the dermatome region for S3?
Gluteal fold area
What is compartment syndrome?
Pressure in muscle compartment becomes very high —> venous drainage gets blocked —>muscle ischaemia and death can arise
Give some causes of compartment syndrome?
Fractures, burns, infections, prolonged limb compression
What are the 6 symptoms associated with compartment syndrome?
The 6 Ps
- Pallor
- Pain
- Paraesthesia
- Pulselessness
- Paralysis
- Perishingly cold
On examination, what would you see for compartment syndrome?
Swollen limb, passive movement painful
How would you treat compartment syndrome?
Relieve pressure by
1) removing all dressings/casts/splints
2) Open fasciotomy- surgically open skin and deep fascia along length of muscle compartment
At what vertebral level is an epidural injection given in an adult?
L4-L5
When would you deliver a lumbar epidural injection?
- child birth
- back pain/ sciatica
Give 3 abnormalities of tone you can assess at each joint.
- Spasticity
- Rigidity
- Cogwheeling hypotonia
What spinal level is lumbar puncture performed at?
L3/L4
What is lumbar puncture used to diagnose?
Meningitis, bleed