Orthopaedics Flashcards
How many people will be affected by back pain in their life time?
-Almost everyone at some point in their life
What is the most common cause of back pain?
-Mechanical back pain (usually in the lumbar region)
What is the most common cause of back pain in the elderly?
-Spinal cord stenosis
What is the most common cause of back pain in the younger patient?
-Disc prolapse
What are risk factors for mechanical back pain?
- Highly demanding jobs
- Prolonged standing
- Awkward lifting
- Obesity
- Psychosocial
- Work-related stress
- Family history
What are the causes of back pain?
-Mechanical
-Degenerative and age related change ie OA, osteoporosis - vertebral fractures
-Inflammatory
>RA, Psoriatic arthritis, Reactive arthritis, Gout, Ank. Spond, Sacroiliitis
-Bone disorders
>Paget’s disease, Osteoporosis, Spinal stenosis
-Immunodeficiency
>Steroids, chemotherapy, infection (HIV, TB), IVDU
-Malignancy
-Trauma
-Somatic
-NAI
Where are secondary metastases commonly from?
- The 5 Bs
- Bronchus
- Breast
- (B)Thyroid
- (B)Prostate
- (B)Kidney
What are some causes of back pain originating from outside the spinal column?
- Dissecting aortic aneurysm
- Posterior duodenal ulcer
- Nephrolithiasis
- Pyelonephritis
- PMS
What are the red flags of back pain?
- Age related: <18 or >60 with new onset back pain
- Neurological symptoms: Bowel and bladder dysfunction, Parasthesia of the legs
- Weight loss
- Clinical features of infection: Night sweats, fever
- Thoracic back pain: aortic aneurysm, trauma, poor posture, thoracic disc herniation
- Immunosuppression: Steroids, chemotherapy, HIV, IVDU
What is yellow flag back pain?
-Back pain that is exaggerated by life stressors
What are some examples of life events that may cause yellow flag back pain?
- Belief that pain and activity are harmful
- Sickness behaviour ie extended rest
- Social withdrawal
- Mood problem
- Problems at work
- Problems with compensation or time off work
- Over protective family or lack of support
- Inappropriate expectations of treatment including low expectations of active participation in treatment
What are the imaging investigations for back pain?
-Xray: >suspected fracture >myeloma >vertebral fracture (osteoporotic) >metastatic carcinoma >Paget's disease of the bone -CT: Fractures, spondyloisthesis -MRI: Soft and hard tissue. >disc lesions, nerve root compression, discitis, suspected neoplastic disease
What are the other investigations needed for back pain apart from imaging?
- Bloods: FBC, U&E, LFTs, CRP
- Urine: Bence jones protein, hydroxyproline
What will LFTs show in Paget’s disease?
-Increase in alkaline phosphatase
What is the management for mechanical back pain?
-Lifestyle advice >Exercise >Desk/chair alterations -NSAIDs -Physiotherapy
What is the management for yellow back pain?
- Reassurance
- Referral to physio/chiropracters
- Relieve life stress
What is the management for red flag back pain?
-Urgent referral to neurosurgeon or specialist orthopaedic surgeon
>Urgent MRI
What is carpal tunnel syndrome?
-Compression of the median nerve in the carpal tunnel causing numbness and tingling
What is the carpal tunnel formed by?
- Carpal bones
- Flexor retinaculum
What is the epidemiology of carpal tunnel?
- Incidence peaks in late 50s
- Female > male
- Obesity is a risk factor
What are genetic risk factors for carpal tunnel syndrome?
- Square shaped wrist
- Short stature
- Family history
- Hereditary neuropathy
What are some secondary causes of carpal tunnel syndrome?
- Post-colles fracture
- Flexion/extension injuries of the wrist
- Space occupying lesion within the carpal tunnel
- Diabetes
- Thyroid disorders
- Menopause
- Inflammatory arthridities of the wrist
- Renal dialysis
What are some space occupying lesions that can result in carpal tunnel syndrome within the carpal tunnel space?
- Aneurysm
- Neurofibroma
- Haemangioma
- Lipoma
- Ganglions
What are some other risk factors for carpal tunnel syndrome? (excluding genetics and secondary causes)
- Pregnancy
- Lactation
- Use of walking aids
- Lack of aerobic exercise