2: Disorders Of The Spine Flashcards
What do red flags of back pain indicate
Severe underlying pathology
What is a mnemonic to remember the red flags of back pain
TUNA FISH
What are the red-flags of back pain
Trauma Unexplained weight loss Night sweats Age <20 or >50 Fever IVDU Steroid use History of malignancy (breast, renal, prostate, lung)
What do yellow flags of back pain indicate
Factors which are prognostic are long-term disability
What are 7 yellow-flags of back pain
- Over-protective or under supportive family
- Financial issues
- History of depression
- Idea the active movement is worse
- Belief that passive treatment would be better
- Idea that pain is severely disabling
How will mechanical back pain present
It is a diagnosis of exclusion, if there are no underlying sinister features
How will disc prolapse present
sudden-onset lower back pain which may radiate down the leg or buttock - it is worse on increase in pressure
What age-group will present with disc prolapse
younger patients
How will spondylolisthesis present
sudden onset back pain and sciatica
When is pain worse in spinal stenosis
on walking
What movements are worse in spinal stenosis
extension is worse.
What movements are better in spinal stenosis
spinal flexion (leaning forwards) relieves pain
In which age group does spinal stenosis present more
older patients
How may malignancy in the spinal cord present clinically
LMN symptoms at the level of the lesion and UMN symptoms above this
How may discitis present
Pain on movement
Systemic signs of infection
How may spinal TB present clinically
Pain and stiffness across all movements
What is degenerative disc disease
a group of disorders with displacement of the intervertebral disc into the spinal canal
What is disc protrusion
the nucleus pulpous presses on the annulus fibrosis creating a bulge which may compress a spinal nerve
What is disc herniation
tear in the annulus fibrosis which causes protrusion of the nucleus pulpous and may compress a spinal nerve
What is disc sequestration
extrusion of nucleus pulpous and separation of fragments that enter the spinal canal causing compression of the spinal nerve
Which age group is degenerative disc disease more common
30-50y
Which gender is degenerative disc disease more common
Males
What is the most common site of degenerative disc disease
L4-L5
Explain clinical presentation of degenerative disc disease
- Acute onset severe lower back pain. May radiate down the legs
- Pain is worse with pressure
- Relieved by short walk or changing position
- May present with parasthesia, weakness and loss of deep tendon reflexes
If L3 radiculopathy where will the sensory deficit be
Lateral thigh
If L3 radioculopathy what motor action will be impaired
Hip Flexion
If L3 radioculopathy what reflexes will be lost
Patella reflex
If L4 radiculopathy were will the sensory deficit be
Disco-Lateral thigh to inside of lower leg
What motor actions are impaired in L4 radiculopathy
Knee extension
Foot dorsiflexion
What reflexes are lost in L4 radiculopathy
Patella reflex
If L5 radiculopathy where is sensation lost
Lateral knee to big toe
If L5 radiculopathy what motor action is lost
First toe dorsiflexion
L5 radiculopathy what reflexes are lost
Posterior tibial reflex
In S1 radiculopathy where is the sensory deficit
Lateral foot
In S1 radiculopathy, which reflex is lost
Achille’s
What sign is positive in disc herniation
Straight Leg Raises
What is a positive straight leg raise test
Lifting the leg causes pain in sensory or motor distribution of affected nerve root
Describe the structure of an inter-vertebral disc
In the centre is a gelatinous core termed the nucleus pulpous. This is surrounded by a fibrous structure termed the annulus fibrosis
Explain pathophysiology of disc herniation
Compression/force through the spinal disc causes degenerative changes which leads to tears causing protrusion and herniation leading to impingement
What imaging modality is ordered in suspected disc herniation
MRI
How will disc degeneration present on MRI
Hypointense on T2 (sclerosed disc)
What is first-line management of disc herniation
Analgesia
Physio
Continue daily activities
What is second line for disc herniation
Laminotomy and discectomy
When is a laminotomy and discectomy indicated
- Severe disabling pain
- Cauda equina syndrome
What is spondylosis
decrease in space between two adjacent vertebrae which may result in compression of the spinal nerve root
What can cause spondylosis
osteoarthritis. Osteophytes causing narrowing between vertebrae
What is spondylolysis
fracture in pars interarticularis of the vertebral arch in a vertebrae
What is spondylolisthesis
stress fractures cause weakening meaning position of vertebrae cannot be maintained and one may slide over the other
In which gender is spondylosis, spondylolysis and spondylolisthesis more common
Females
What is the most common site for spondylolysis
L5
What is the most common site for spondylolisthesis
L5/S1
What are the 5 causes of spondylolisthesis
- Paget’s disease
- Degnerative
- Congenital
- Spondylolysis
- Trauma
What is the commonest cause of spondylolisthesis
Spondylolysis (50%)
How may spondylolysis present
- Asymptomatic
- Can present with lower back pain and stiffness
How may spondylolisthesis present
- Asymptomatic
- Lower back pain + muscle spasms
- Waddling gait
In what % of people is spondylolisthesis asymptomatic
90%
What is first-line investigation in spondylosis/lysis/listhesis
Oblique and lateral x-rays of the spine
What is the x-ray sign of spondylolysis
‘Scotty dog sign’ = fracture in pars interarticularis presents as a collar around a scotty dogs neck
What is second-line investigation of spondylo-disease
MRI
What is first-line management of spondylolisthesis
Conservative:
- NSAIDs
- Physiotherapy
- Epidural corticosteroid injection
What is second-line management of spondylolisthesis
Surgical decompression
Define scoliosis
abnormal curvature in the spine of more than 10’ in the horizontal plane
In which gender is scoliosis more common
Females (10:1)
What are causes of scoliosis
Congenital
Neuromuscular
Neurofibromatosis
Marfan’s syndrome
How may scoliosis present clinically
- Asymptomatic
- As it progresses may develop lower back and neurological symptoms
What is first-line investigation for scoliosis
Lateral and AP X-ray
What is second-line investigation for scoliosis
MRI
What is first-line management of scoliosis
- Active monitoring and orthoses
When may surgical management of scoliosis be indicated
Neurological symptoms
Severe pain