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Case of Back Pain

Case of Back Pain. 53 year old, right handed lady, hotelier 3 day history of severe lower back pain and weakness in her legs bending over at work and had noticed a mild back pain, which progressed Night and rest pain, leg radiation, worse with movement. Unable to walk. Case of Back Pain.

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Case of Back Pain

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  1. Case of Back Pain • 53 year old, right handed lady, hotelier • 3 day history of severe lower back pain and weakness in her legs • bending over at work and had noticed a mild back pain, which progressed • Night and rest pain, leg radiation, worse with movement. Unable to walk

  2. Case of Back Pain • Sep 05Haematologists shoulder pains, lymphadenopathy and rash, fatigue, 7 kg weight loss in 6 months • l-node < 1cm ALP 210 Rheum referral • Subsequently admitted • Ex In pain restricted spine ? leg weakness and altered sensation feet

  3. Case of Back Pain • ALP 320, ALT 89 CRP 96 XR normal • MRI spine normal • Symptoms progressed • Tingling in upper limbs, noted to have reduced reflexes

  4. Case of Back Pain • CSF protein 2.55 g • ?Guillan-Barre • Transferred to neurology • IV Ig, Rehab, FVC, vitals monitoring • Campylobacter IgG and IgA 160 • EBV +ve

  5. GB syndrome • Post-infective acute inflammatory demyelinating polyneuropathy • 1-3 weeks post viral • Distal numbness and weakness – evolves over days to weeks ascending • Back and leg pain can be a feature • 20% severe with autonomic and respiratory complications • Weakness, areflexia, sensory loss

  6. GB syndrome • Rare – ocular and ataxia – Miller-Fisher syndrome • NCS: slowing of conduction or block • CSF: 1-3g/l • IV Ig, supportive, ventilation, plasmapharesis, rehab

  7. BACK PAIN Jaya Ravindran Rheumatologist

  8. Causes • Simple mechanical eg ligamentous strain • Degenerative disease with/without neural, cord or canal compromise • Metabolic – osteoporosis, Pagets • Inflammatory – Ankylosing spondylitis • Infective – bacterial and TB • Neoplastic • Others, (trauma,congenital) • Visceral

  9. Red flags • Age <20 or >50 with back pain for the 1st time • Thoracic pain >50 yrs • Pain following a violent injury/trauma • Unremitting, progressive pain

  10. Red flags • Past or current history of cancer • On Steroids or immunosuppressants • Drug abuser or +ve HIV • Systemic symptoms - fever, appetitie and weight loss, malaise

  11. Red flags • Bilateral leg radiation, sensory/motor/sphincter symptoms • Pain predominantly at night

  12. Inflammatory flags • Morning stiffness and pain >30 mins -1 hr • Better with activity • Peripheral joint involvement • Anterior uveitis • Psoriasis • Inflammatory bowel disease • Recent GI or GU infection • Family history

  13. Myotomes • C5 Deltoid, biceps (biceps jerk) • C6 Wrist extensors, biceps (biceps, brachioradialis jerk) • C7 Wrist flexors, finger extensors, triceps (triceps jerk) • C8 Finger flexor, thumb extensors (triceps jerk) • T1 finger abductors

  14. Myotomes • L2 Hip flexion • L3 Knee extension (knee jerk) • L4 Knee extension, ankle dorsiflexion (knee jerk) • L5 toe dorsiflexion • S1 foot plantar flexion, eversion

  15. DERMATOMES

  16. Examination • LOOK – deformity, muscle wasting, kyphosis, scoliosis • LOOK – normal cervical lordosis, thoracic kyphosis, lumbar lordosis • FEEL – spinal processes and sacroiliac joints

  17. Examination • MOVE – Lumbar flexion • Schober’s test – marks at “dimples of Venus” and 10 cm above. Measure at maximal flexion – usually 5 cm • MOVE – Lumbar lateral flexion • MOVE – Cervical flexion/extension, lateral rotation and flexion, thoracic rotation

  18. Examination • Sciatic stretch (patient supine) - Straight leg raise and dorsiflexion of foot - pain in calf and posterior thigh between 30-70o – low lumbar (L5/S1) lesion or sciatic irritation • Femoral stretch (patient prone) – knee is flexed and then hip extended – pain in anterior thigh – high lumbar (L2-L4) lesion

  19. Imaging • XR – tumour, fracture, infection, inflammation • Bone scan – increased turnover eg infection, metastatic disease, fractures, Pagets • MRI – soft tissue, discs, facet joint, nerve roots, cord, inflammation

  20. Degenerative disease and sciatica • Very common • Facet joint OA, disc disease, osteophyte • Mechanical back pain • Sciatica – most resolve NB persistent, neurology, bilateral, red flags • Analgesia, PT, pain clinics

  21. Degenerative disease and sciatica

  22. Malignancy • Unremittting, progressive and night pain • Systemic symtoms • Past hx Ca • Breast, bronchus, thyroid, kidney, prostate and myeloma/plasmacytoma • Osteolytic (prostate osteoblastic) • XR can be normal in early stages – further imaging if suspicion high • Predilection for vertebral body and pedicles

  23. Malignancy

  24. Malignancy

  25. Infection • discitis, osteomyelitis, and epidural abscess. • hematogenously spread • most often Staphylococcus aureus. • Gram-negative rods in postoperative or immunocompromised patients • normal skin flora is less commonly isolated in postoperative patients. • Postoperative patients develop symptoms 2 to 4 weeks after surgery after an initial improvement in pain.

  26. Infection • Pseudomonas organisms in intravenous drug users. • Mycobacterium tuberculosis in developing nations and immigrant population. Fungal infections are rare. • Only one third have fever and 3% to 15% present with neurologic deficit. • Infections typically involve the intervertebral disc and vertebral body endplate

  27. Infection • Radiographic changes at 2 to 4 weeks • bone scan can be positive as early as 2 days 75% specific. • MRI appearance is decreased T1- and increased T2-weighted signal in the infected disk. Enhancement after gadolinium

  28. Infection • Conservative treatment of antibiotics, rigid bracing to prevent deformity and control pain • Surgery : neurologic deficit, presence of abscess, extensive bone loss with kyphosis and instability, failure of blood work and biopsy to isolate any organism, excision of a sinus tract, or no response to conservative treatment.

  29. Infection

  30. Infection

  31. Osteoporosis

  32. DEXA

  33. T scores

  34. Osteoporosis

  35. Low bone density

  36. Osteoporosis - risks • History of low trauma # - colles, NOF, vertebral, sacral or pelvic insufficiency • Steroids • Maternal history of NOF # • Gonadal hormone deficiency • Ca deficiency • Prolonged immobility • Low BMI • Alcohol and smoking

  37. Causes of low bone density

  38. Vertebral fractures

  39. Osteoporosis

  40. Osteoporosis • Bisphosphonates • SERMs • Strontium • Teriparatide • Calcitonin • Lifestyle factors • Ca and Vit D

  41. 7-dehydrocholesterol sunlight cholecalciferol • (diet) • liver • 25-hydroxycholecalciferol • kidney 1-hydroxylase • 1,25-dihydroxycholecalciferol (-) • increased GI Ca2+ absorptionCa2+ • Bone resorption Thyroid • (-) • Parathyroid Gland PTH  Renal Ca2+(-) Calcitonin • reabsorption

  42. Spinal stenosis • Canal or foraminal narrowing with possible subsequent neural compression • Cause • Ligamanetum flavum hypertrophy, facet joint hypertrophy, vertebral body osteophytes, herniated disc • Rare: Pagets, AS, acromegaly

  43. Spinal stenosis • Symptoms • Age - >50 • Dull aching pain in the lower back and legs • Exertional leg pain/weakness/numbness • Symptoms relieved leaning forward, sitting or lying • Examination • May be normal • Normal sensation and power • Reflexes normal or slightly reduced • Normal foot pulses

  44. Spinal stenosis

  45. Spinal stenosis • Conservative – analgesics, NSAIDs, PT, epidural • Surgery – laminectomy (+arthrodesis)

  46. Cauda Equina Syndrome • Back pain, lower limb weakness, saddle anaesthesia, sphincter disturbance, impotence • Causes – usually disc, rarely tumour, abscess, advanced AS • Diminished sensation L4 to S2 (sacral numbness), weakness ankle and plantar dorsiflexion, loss ankle jerks, urinary retention, loss anal tone • Urgent MRI and surgical decompression

  47. Cauda Equina Syndrome

  48. Pagets

  49. Pagets • Pain, deformity • Skull, long bone, vertebra, pelvis, near hip • Neurologic compromise • Planned surgery • ?ALP 2X ULN • Rare: high output failure

  50. AS

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