Presentation
A young 20 Yrs male presented with backache.
Patient Data
Age: 20
Gender: Male
From the case:
Clasp-knife deformity
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Radiograph Pelvis showing enlarged downward slanting spinous process of L5 vertebra extending upto S1-S2 level with spina bifida of L5, S1 and S2 vertebrae.
The transverse processes of L5 are spatulated and the right appears to articulate with the sacrum.
Case Discussion
Enlarged downward projecting spinous process of L5 vertebra extending up to sacral vertebrae with associated bifida defects is known as "Clasp-knife deformity".
It is often the cause of backache particularly during bending movements and called "Clasp-knife syndrome".
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