1. Excruciating localised back pain following an inciting event such as downhill skiing, direct trauma or post-surgery. Pain increased on flexion and relieved on extension |
2. No prior history of back pain |
3. Clinical features: |
(i) Bilateral or unilateral paraspinal muscle board like rigidity |
(ii) Hypoactive bowel sounds with diffuse abdominal tenderness |
(iii) Localised sensory loss in the paraspinal region with or without localised muscleatrophy |
4. Investigations: |
(i) Elevated CPK (more than 2,000–40,000) |
(ii) Elevated SGOT |
(iii) Urine myoglobinuria |
(iv) Elevated intramuscular pressure – approximately 70–80 mm Hg |
(v) MRI – Homogenous increase in signal intensity in T2 within the compartment |