Spine Flashcards
What is often enough to treat acute episodes of mechanical back pain?
Advice and analgesia with or without physiotherapy.
Define mechanical back pain.
Recurrent relapsing and remitting back pain with no neurological symptoms.
What are the potential causes for mechanical back pain?
Obestiy, poor posture, poor lifting technique, lack of physical activity, depression, degenerative disc prolapse, facet joint OA and spondylosis.
What is spondylosis?
Where U=IV discs lose water content with age resulting in less cushioning and increased pressure on the facet joints leading to secondary OA.
What advice would you give someone with mechanical back pain?
They do not have a serious problem, urge them to maintain normal function and return to work early, bed rest not advised (leads to stiffness and spasm of back).
What patients MAY benefit from spinal stabilisation surgery?
Patients with single elvel OA or instability that haven’t improved despite physio/conservative management where there is no secondary gain.
Why is acute disc tear painful and what makes it worse?
Periphery of IV disc is richly innervated, coughing (increases disc pressure).
What is the mainstay of treatment for acute disc tear and how long can it take for symptoms to resolve?
Analgesia and physiotherapy, 2-3 months.
What occurs when disc material impinges on an exiting nerve root?
Pain and altered sensation in dermatomal distribution as well as reduced power in a myotomal distribution.
What is the commonest site for disc prolapse to impinge nerves?
Lower lumbar spine with L4, L5 and S1 nerve roots contributing to sciatic nerve being compressed.
What is the first line treatment for sciatica?
Analgesia, maintaining mobility and physiotherapy. Drugs for neuropathic pain e.g. gabapentin can be used if leg pain is particularly severe.
When is surgery (discectomy) indicated in sciatica?
Pain is not resolving despite physiotherapy and localising signs suggesting specific nerve root involvement and positive MRI evidence of nerve root compression. Contra-indication - secondary gain or psychological dysfunction.
What is a potential neurological complication of facet joint OA?
Bony nerve root entrapment - osteophytes impinge on exiting nerve roots.
What is a potential treatment for bony nerve root entrapment?
Surgical decompression with trimming of impinging osteophytes.
What is spinal stenosis and what causes it?
When the cauda equina has less space due to spondylosis and combo of bulging discs, bulging ligamentum flavum and osteophytosis.
What is the clinical presentation of spinal stenosis?
Person over 60 with neurological claudication.
What are the features of neurological claudication?
Claudication distance is inconsistent, pain is burning rather than cramping, pain is less walking uphill (spine flexion creates more space for cauda equina), pedal pulses are preserved.
What is the treatment of spinal stenosis?
Similar to sciatica.
What is cauda equina syndrome?
Where a very large central disc prolapse compresses all the nerve roots of the cauda equina.
Why is cauda equina a surgical emergency?
Affected nerve roots include the sacral nerve root (mainly S4-5) controlling defecation and urination.
What can prolonged compression of the cauda equina cause?
Nerve damage requiring colostomy and urinary diversion.
What are the signs/symptoms of cauda equina syndrome?
Bilateral leg pain, paraethesiae or numbness, saddle anaesthesia, urinary retention/incontinence, faecal incontinence/constipation.