Tuberculosis of Spine / Pott’s Disease — বাংলা ক্লিনিক্যাল নোট
সতর্কতা: নিচের dose adult drug-susceptible TB-এর জন্য সাধারণ কাঠামো। Patient weight, renal/liver function, pregnancy, HIV/ART, drug resistance, visual status, neurological deficit অনুযায়ী TB specialist/orthospine/neurosurgery review দরকার।
1. Definition / সংজ্ঞা
Pott’s disease হলো spine-এর tuberculosis, সাধারণত Mycobacterium tuberculosis vertebral body, intervertebral disc, paravertebral soft tissue/abscess এবং epidural space-এ infection করে। এটি extrapulmonary TB এবং osteoarticular TB-এর severe form, কারণ delayed treatment হলে spinal cord compression, kyphosis, paraplegia হতে পারে। Bangladesh NTP guidance-এ spinal TB/Pott’s disease-কে priority basis-এ treat করার কথা বলা হয়েছে neurological sequelae-এর ঝুঁকির জন্য।
2. Causes / Etiology & Pathophysiology — কারণগুলো
- প্রধান organism: Mycobacterium tuberculosis complex। TB সাধারণত lungs-এ শুরু হলেও blood/lymphatic spread হয়ে spine-এ যেতে পারে। WHO অনুযায়ী TB spine, brain, kidney, skin সহ বিভিন্ন organ involve করতে পারে।
- Spread-এর pathway:
Pulmonary বা latent primary focus থেকে hematogenous spread → vertebral body-এর anterior/inferior area → adjacent vertebra/disc involvement → bone destruction → collapse/kyphosis → abscess/cord compression। - Common site:
Thoracolumbar spine বেশি common; তবে cervical, thoracic, lumbar, sacral যেকোনো level involve হতে পারে। - Risk factors:
Previous TB/contact history, undernutrition, diabetes mellitus, HIV/immunosuppression, chronic kidney disease, steroid/biologic therapy, overcrowding, smoking, alcohol use। WHO TB fact sheet diabetes, HIV/immunosuppression, undernutrition, tobacco and harmful alcohol use-কে TB disease risk factor হিসেবে উল্লেখ করেছে।
3. Symptoms / Clinical Features — লক্ষণগুলো
Local spine symptoms
- Chronic back pain — সবচেয়ে common; weeks–months ধরে থাকে, rest-এও থাকতে পারে।
- Localized tenderness — affected vertebral level-এ চাপ দিলে ব্যথা।
- Stiffness / restricted movement — patient spine নাড়াতে ভয় পায়।
- Paraspinal muscle spasm — protective spasm।
- Gibbus / kyphotic deformity — vertebral collapse হলে hump-like deformity।
- Cold abscess — paravertebral/psoas abscess; inflammatory redness কম থাকতে পারে।
Constitutional TB symptoms
- Low-grade fever
- Night sweat
- Weight loss
- Loss of appetite
- Fatigue/weakness
TB disease-এর common systemic symptoms হিসেবে WHO/CDC fever, night sweat, weight loss, fatigue, appetite loss উল্লেখ করে।
Neurological symptoms — emergency red flags
- Leg weakness / heaviness
- Numbness, tingling, radicular pain
- Gait disturbance
- Hyperreflexia/spasticity
- Bladder-bowel involvement
- Paraplegia
Neurological deficit থাকলে urgent MRI + spine/neurosurgery referral.
4. Clinically Diagnosis — clinically কীভাবে suspect করবেন
Pott’s disease suspect করবেন যদি:
- Chronic back pain + constitutional TB symptoms থাকে।
- Back pain + TB contact/past TB/undernutrition/DM/HIV থাকে।
- Back pain + kyphosis/gibbus deformity থাকে।
- Back pain + neurological deficit থাকে।
- ESR/CRP raised + X-ray/MRI suggestive lesion থাকে।
- Paravertebral/psoas abscess থাকে।
Clinical diagnosis alone final না। Current concept review অনুযায়ী tissue diagnosis confirmatory; MRI ও GeneXpert early detection-এ সহায়ক।
5. Investigations — specific list
A. Baseline blood tests
- CBC
- ESR, CRP — disease activity/monitoring
- LFT: bilirubin, ALT/AST, ALP
- RFT: creatinine, eGFR
- Uric acid — pyrazinamide hyperuricemia monitor
- Fasting/RBS, HbA1c — diabetes screen
- HIV test
- HBsAg, anti-HCV if liver risk
- Pregnancy test where relevant
B. Imaging
- X-ray spine AP/lateral: vertebral destruction, disc-space narrowing, collapse, kyphosis।
- MRI spine with contrast — best initial detailed test: marrow edema, disc/vertebral involvement, epidural extension, cord compression, paravertebral/psoas abscess।
- CT spine: bony destruction, sequestrum, surgical planning, CT-guided biopsy।
- Chest X-ray: pulmonary TB co-infection খুঁজতে।
NICE recommends bone/joint TB assessment with X-ray, CT, MRI, and biopsy/aspirate/culture depending on suspected site.
C. Microbiology / confirmatory tests
- CT-guided biopsy / aspirate from paravertebral abscess
- AFB smear
- Xpert MTB/RIF or Xpert Ultra / CB-NAAT
- Mycobacterial culture: liquid culture preferred
- Drug susceptibility testing: especially rifampicin/isoniazid resistance
- Histopathology: caseating granuloma, epithelioid cell granuloma, Langhans giant cell
Bangladesh NTP-based guidance says extrapulmonary TB microbiological confirmation-এর জন্য CB-NAAT/GeneXpert and liquid culture are preferred diagnostic technologies, and tissue/aspirate/pus/biopsy specimens can be tested.
6. Differential Diagnosis
- Pyogenic spondylodiscitis
- Brucellar spondylitis
- Metastatic spine disease
- Multiple myeloma
- Lymphoma
- Spinal epidural abscess
- Fungal vertebral osteomyelitis
- Degenerative disc disease
- Ankylosing spondylitis
7. Complications — সহজ বাংলায়
- Spinal cord compression: vertebra ভেঙে বা abscess চাপ দিলে nerve/cord compressed হয় → weakness, numbness, paralysis।
- Paraplegia: দুই পা দুর্বল/অচল হয়ে যেতে পারে।
- Kyphosis/gibbus deformity: spine বাঁকা হয়ে hump তৈরি হয়; severe হলে permanent deformity।
- Spinal instability: vertebral destruction হলে spine mechanically unstable হয়।
- Paravertebral/psoas abscess: pus-like cold abscess কোমর/পেট/inguinal region পর্যন্ত নামতে পারে।
- Chronic pain and disability
- Bladder-bowel dysfunction
- Drug-resistant TB: ভুল dose, irregular medicine, premature stop করলে MDR/RR-TB হতে পারে। CDC medicine irregularly না নেওয়াকে drug-resistant TB risk হিসেবে উল্লেখ করে।
8. Treatment / Management — Bangladesh & guideline-based
Core principle
Bangladesh NTP-based guidance অনুযায়ী osteoarticular TB and spinal TB/Pott’s disease treatment: 12 months = 2HRZE/10HR। Neurological deficit, unstable spine lesion, or non-response হলে surgery consider করতে বলা হয়েছে।
Non-pharmacological management
- Rest only acute severe pain/neurological deficit-এর সময়; prolonged bed rest avoid.
- Spinal brace/support if instability/pain/deformity risk.
- Nutrition: high-protein diet, calorie support, vitamin D/calcium if deficient.
- Physiotherapy after pain/instability controlled.
- Monthly clinical monitoring: pain, fever, weight, neuro exam, adherence, adverse effects.
- Repeat MRI: routine নয়; poor response/neuro deterioration/surgery planning হলে।
Surgery indications
- Progressive neurological deficit
- Spinal cord compression
- Unstable spine
- Severe/progressive kyphosis
- Large abscess not responding
- Diagnostic uncertainty needing biopsy
- Failure of adequate ATT
Spinal TB review literature supports that uncomplicated cases often respond to chemotherapy, while surgery is reserved for neurological complications, deformity, instability, abscess/non-response.
9. Pharmacological drugs — point-wise with purpose, dose, duration, side effects, interaction, Bangladesh brands
A. First-line anti-TB regimen: HRZE → HR
1) Generic name: Rifampicin + Isoniazid + Pyrazinamide + Ethambutol
Therapeutic category: Anti-tubercular drug
Pharmacological class: Combined anti-tubercular preparation
Why used: Intensive phase-এ bacterial load দ্রুত কমাতে, resistance prevent করতে, intracellular/extracellular TB bacilli kill করতে। MedEx lists this combination for pulmonary and extrapulmonary TB intensive initial phase.
Bangladesh available brand name:
- Rimstar 4-FDC tablet — Rifampicin 150 mg + Isoniazid 75 mg + Pyrazinamide 400 mg + Ethambutol 275 mg, SANDOZ.
Dose — adult weight-based, once daily:
- 30–37 kg: 2 tablets daily
- 38–54 kg: 3 tablets daily
- 55–70 kg: 4 tablets daily
- 70 kg: 5 tablets daily
MedEx gives this dosing for 2-month intensive phase.
Duration:
- Bangladesh spinal TB/Pott’s: 2 months HRZE, then 10 months HR = total 12 months.
Major side effects:
- Rifampicin: orange/red urine/tears, GI upset, hepatitis, thrombocytopenia, renal issues
- Isoniazid: hepatitis, peripheral neuropathy, dizziness
- Pyrazinamide: hepatotoxicity, hyperuricemia, gout-like pain
- Ethambutol: optic neuritis/visual disturbance, color vision problem
MedEx lists these adverse effects for the 4-FDC.
Important interactions:
- Rifampicin induces liver enzymes → reduces effect of warfarin, OCP, steroids, azoles, antiepileptics, antidiabetics, ART, cyclosporine, methadone.
- Isoniazid inhibits metabolism of phenytoin/carbamazepine, benzodiazepines, warfarin, theophylline.
- Pyrazinamide reduces efficacy of gout medicines.
- Ethambutol caution with neurotoxic drugs.
2) Generic name: Rifampicin + Isoniazid
Therapeutic category: Anti-tubercular drug
Pharmacological class: Combined anti-tubercular preparation
Why used: Continuation phase-এ remaining bacilli eradicate করতে এবং relapse prevent করতে। MedEx states Rifampicin + Isoniazid is used for continuation phase treatment of TB.
Bangladesh available brand names:
- Rifagen tablet — Rifampicin 450 mg + Isoniazid 300 mg, Pharmadesh
- Rimactazid tablet — Rifampicin 300 mg + Isoniazid 150 mg, SANDOZ
- Rimactazid tablet — Rifampicin 450 mg + Isoniazid 300 mg, SANDOZ
Dose:
- <50 kg: 1 tablet of 450/300 mg once daily, or equivalent
- 50 kg: 2 tablets of 300/150 mg once daily
MedEx gives this continuation-phase dosing.
Duration:
- Pott’s disease Bangladesh approach: 10 months after intensive phase → total 12 months.
Major side effects:
- Hepatitis, nausea/vomiting, rash
- INH neuropathy
- Rifampicin body-fluid discoloration
- Thrombocytopenia/flu-like syndrome if intermittent/irregular
Interactions:
- Hormonal contraceptive failure risk
- Warfarin, antiepileptics, antifungals, antidiabetics, ART, steroids affected
- INH increases phenytoin/carbamazepine toxicity risk
MedEx lists extensive interaction cautions for Rifampicin + Isoniazid.
3) Generic name: Ethambutol
Therapeutic category: Anti-tubercular drug
Pharmacological class: Anti-tubercular chemotherapeutic / antimycobacterial cell-wall synthesis inhibitor
Why used: Initial regimen-এ resistance cover করতে, especially INH resistance uncertainty থাকলে। Monotherapy করা যাবে না।
Bangladesh available brand name:
- Sural tablet — Ethambutol 400 mg, Ambee Pharmaceuticals.
Dose:
- 15–25 mg/kg/day orally once daily; renal impairment হলে dose interval adjust.
Duration: - Usually intensive phase 2 months; susceptibility result ও regimen অনুযায়ী modify.
Side effects: - Optic neuritis, decreased visual acuity, red-green color blindness
- Rash, GI upset, hyperuricemia rare
Monitoring: - Baseline and follow-up visual acuity/color vision
Interaction/caution: - Neurotoxic drugs; renal impairment.
4) Generic name: Rifampicin
Therapeutic category: Anti-tubercular antibiotic
Pharmacological class: Rifamycin derivative; DNA-dependent RNA polymerase inhibitor
Why used: Key bactericidal/sterilizing anti-TB drug; individualized regimen বা syrup প্রয়োজন হলে। Monotherapy করা যাবে না।
Bangladesh available brand names:
- Rifcin syrup — Rifampicin 100 mg/5 ml, Pharmadesh
- Rifcin capsule — Rifampicin 150 mg, Pharmadesh
- Rimactane tablet — Rifampicin 450 mg, SANDOZ
Dose:
- 8–12 mg/kg/day, usual max 600 mg/day.
Duration: - Regimen অনুযায়ী 12 months total in Pott’s disease with HR continuation.
Side effects/interactions: - Hepatitis, orange urine/tears, thrombocytopenia
- Strong enzyme inducer → OCP, warfarin, ART, azoles, phenytoin, steroids, antidiabetics কম কার্যকর হতে পারে।
B. Supportive / adjunct drugs commonly used
5) Generic name: Pyridoxine Hydrochloride / Vitamin B6
Therapeutic category: Vitamin
Pharmacological class: Vitamin-B preparation
Why used: Isoniazid-induced peripheral neuropathy prevent/treat করতে। MedEx explicitly lists prophylaxis of INH-induced peripheral neuritis.
Bangladesh available brand names:
- G-Vitamin B6 — 25 mg
- Pyrol — 25 mg
- Pyrovit — 20 mg
- Sixvit — 20 mg
Dose:
- Prophylaxis: 10–50 mg daily
- High risk: diabetes, HIV, pregnancy, malnutrition, alcoholism, neuropathy history
Duration: - As long as INH is used
Side effects: - Very high long-term dose may cause neuropathy
Interaction: - May reduce levodopa effect if levodopa without carbidopa; may reduce phenytoin/phenobarbital level in high doses.
6) Generic name: Paracetamol
Therapeutic category: Analgesic/antipyretic
Pharmacological class: Para-aminophenol derivative
Why used: Back pain/fever relief; anti-TB drug নয়।
Bangladesh available brand examples:
- Napa tablet — Paracetamol 500 mg, Beximco
- Ace tablet — Paracetamol 500 mg, Square
- Aceta — Paracetamol formulations, Biopharma
MedEx lists Napa 500 mg and Ace 500 mg as paracetamol brands indicated for fever/bodyache/back pain-type symptoms.
Dose:
- 500 mg every 6–8 hours PRN
- Max usually 3 g/day safer ceiling; liver disease/alcohol use হলে lower dose
Side effects: - Hepatotoxicity in overdose
Interaction: - Warfarin effect may increase with prolonged regular use; caution with hepatotoxic anti-TB drugs.
7) Generic name: Diclofenac Sodium / Ibuprofen
Therapeutic category: Analgesic/anti-inflammatory
Pharmacological class: NSAID / COX inhibitor
Why used: Severe inflammatory back pain short course; renal/GI/CV risk দেখে।
Bangladesh available brand examples:
- Diclofen tablet — Diclofenac sodium 25 mg/50 mg, Opsonin
- Diclofast SR — Diclofenac sodium 100 mg SR, Al-Madina
- Diclofix — Diclofenac sodium 50 mg, Army Pharma
MedEx lists these diclofenac brands and strengths.
Dose examples:
- Diclofenac 50 mg 2–3 times daily after food, short course
- Diclofenac SR 100 mg once daily, short course
Side effects: - Gastritis/ulcer/GI bleed, renal impairment, edema, BP rise, CV risk
Interactions: - Anticoagulants, antiplatelets, steroids, ACEi/ARB/diuretics, CKD risk
Avoid/caution: - Peptic ulcer, CKD, uncontrolled HTN, heart failure, anticoagulant use.
8) Generic name: Esomeprazole
Therapeutic category: Anti-ulcerant
Pharmacological class: Proton pump inhibitor
Why used: NSAID-associated gastritis/ulcer risk কমাতে বা dyspepsia থাকলে; routine সবার জন্য দরকার নেই।
Bangladesh available brand examples:
- Sergel — Esomeprazole 20 mg/40 mg
- Esoral — Esomeprazole 20 mg sachet/40 mg vial
- Esolok — Esomeprazole 20 mg/40 mg
- Raceper — Esomeprazole 20 mg/40 mg
MedEx lists multiple esomeprazole brands with 20 mg/40 mg strengths.
Dose:
- 20 mg once daily before breakfast; high GI risk হলে 40 mg daily
Duration: - During NSAID course or clinically indicated period
Side effects: - Headache, diarrhea/constipation, hypomagnesemia with long use, B12 deficiency with long use
Interaction: - May reduce absorption of drugs needing gastric acidity; caution with clopidogrel.
9) Generic name: Prednisolone / Dexamethasone
Therapeutic category: Corticosteroid
Pharmacological class: Glucocorticoid
Why used: Pott’s disease-এ routine নয়। Neurological cord edema/marked inflammatory compression থাকলে specialist decision; TB meningitis/pericarditis-এ guideline-supported. Bangladesh TB guidance specifically TB meningitis/pericarditis-এ steroid taper উল্লেখ করে; spinal TB-তে surgery/ATT main.
Bangladesh available brand examples:
- Prednisolone brands: MedEx lists prednisolone as glucocorticoid-type anti-inflammatory drug with adult anti-inflammatory dose range 5–60 mg/day.
- Dexamethasone brands include Dexonex 0.5 mg tablet / 5 mg/ml injection, Dexa 5 mg/ml injection, Decason 0.5 mg tablet / 5 mg/ml injection, Sonexa 4 mg/6 mg tablet and injection, etc.
Dose:
- Only specialist-directed. Example: prednisolone 0.5–1 mg/kg/day short course then taper, if clear indication.
Side effects: - Hyperglycemia, hypertension, gastritis, infection flare, mood change, osteoporosis
Interaction: - Rifampicin reduces steroid level; steroid raises glucose and GI bleed risk with NSAIDs. MedEx notes prednisolone efficacy is reduced by rifampin.
10. Bangladesh doctors commonly prescribe — practical prescription pattern
Typical confirmed drug-susceptible Pott’s disease prescription framework
- Rimstar 4-FDC once daily according to weight × 2 months
Why: Intensive phase HRZE. - Then Rimactazid or Rifagen once daily according to weight × 10 months
Why: Continuation phase HR. - Pyridoxine 20–25/50 mg daily throughout INH therapy
Why: INH neuropathy prevention. - Paracetamol 500 mg PRN
Why: Pain/fever relief. - NSAID short course ± PPI only if pain severe and no contraindication
Why: inflammatory back pain control and gastric protection. - Brace + physiotherapy + nutrition
Why: deformity/instability/pain control and recovery. - Urgent spine/neurosurgery referral if neuro deficit/cord compression/instability.
11. Prevention — কীভাবে প্রতিরোধ করবেন
- Pulmonary TB patient-এর early diagnosis and full treatment নিশ্চিত করা।
- Household contact screening করা: cough, fever, weight loss, night sweat থাকলে test।
- Latent TB infection treatment in eligible high-risk contacts/HIV/immunosuppressed patients।
- BCG vaccination: severe childhood TB form থেকে protection দেয়।
- Crowded closed room avoid; ventilation improve।
- Cough etiquette, mask if pulmonary TB suspected/confirmed।
- TB medicine irregularly না খাওয়া; full course complete করা — drug resistance prevention-এর মূল কাজ। CDC says active TB spread prevention-এর সবচেয়ে গুরুত্বপূর্ণ কাজ হলো all TB medicines exactly as prescribed নেওয়া।
- Diabetes, HIV, malnutrition control।
- Smoking/alcohol reduce/stop।
Overview / Summary
Pott’s disease হলো spine-এর extrapulmonary TB, যেখানে chronic back pain, constitutional symptoms, kyphosis, cold abscess এবং neurological deficit দেখা দিতে পারে। Diagnosis clinically suspect করা যায়, কিন্তু confirmation-এর জন্য MRI + biopsy/aspirate থেকে GeneXpert/CB-NAAT, culture-DST এবং histopathology গুরুত্বপূর্ণ। Bangladesh guidance অনুযায়ী spinal TB/Pott’s disease সাধারণত 2HRZE/10HR = 12 months treat করা হয়; neurological deficit, instability, severe deformity বা non-response হলে surgery consider করতে হয়।
Actionable Plan / Steps
- Suspect: chronic back pain + TB symptoms/risk/red flags।
- Immediate test: CBC, ESR/CRP, LFT/RFT, HIV, CXR, MRI spine contrast।
- Confirm: CT-guided biopsy/aspirate → GeneXpert/CB-NAAT, AFB, culture-DST, histopathology।
- Start ATT: confirmed/highly suspected severe disease → HRZE under NTP/TB specialist.
- Duration: Pott’s disease: 2 months HRZE + 10 months HR.
- Monitor monthly: adherence, weight, neuro exam, LFT if symptomatic/risk, uric acid if joint pain, vision if ethambutol।
- Refer urgently: weakness, bladder/bowel symptoms, cord compression, unstable spine, progressive kyphosis।
Reference List — Textbook + Guideline + DOI
- Harrison’s Principles of Internal Medicine, 22nd ed. Chapter 183: Tuberculosis. McGraw Hill, 2025.
- Davidson’s Principles and Practice of Medicine, 24th ed. Elsevier, 2022 — infectious disease/TB clinical medicine reference.
- Robbins & Kumar Basic Pathology, 11th ed. Elsevier — granulomatous inflammation/TB pathology.
- Bangladesh NTP / Prescribing Companion: Treatment for extrapulmonary TB and spinal TB/Pott’s disease: 2HRZE/10HR; surgery indications.
- WHO TB Knowledge Sharing Platform: Extrapulmonary TB treatment: 6-month core regimen; osteoarticular TB may require longer therapy.
- NICE NG33 Tuberculosis guideline: Bone/joint TB investigations: X-ray, CT, MRI, biopsy/aspirate/culture.
- Rajasekaran S, Soundararajan DCR, Shetty AP, Kanna RM. Spinal Tuberculosis: Current Concepts. Global Spine Journal. 2018;8(4 Suppl):96S–108S. DOI: 10.1177/2192568218769053.
- Rasouli MR, Mirkoohi M, Vaccaro AR, Yarandi KK, Rahimi-Movaghar V. Spinal Tuberculosis: Diagnosis and Management. Asian Spine Journal. 2012;6(4):294–308. DOI: 10.4184/asj.2012.6.4.294.
- Garg D, Goyal V. Spinal Tuberculosis Treatment: An Enduring Bone of Contention. Annals of Indian Academy of Neurology. 2020;23(4):441–448. DOI: 10.4103/aian.AIAN_141_20.
Md.Rafiqul Islam Lipu,Date:-13-06-2026 Saturday Time:-2-10-47 Pm