Nerve root signs of the two commonest disc prolapses
L5 big toe, S1 ankle jerk
Distinguishes the two commonest sciatica levels from L4-L5 and L5-S1 disc prolapse.
Ignores L4 (knee jerk) and higher roots.
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L5 big toe, S1 ankle jerk. It helps you recall: Nerve root signs of the two commonest disc prolapses.
Weak great toe dorsiflexion, numbness over dorsum of foot
Lost ankle jerk, weak plantar flexion, lateral foot numbness
L5: Weak great toe dorsiflexion, numbness over dorsum of foot; S1: Lost ankle jerk, weak plantar flexion, lateral foot numbness.
It belongs to Spine in Orthopaedics.
Ignores L4 (knee jerk) and higher roots.
Distinguishes the two commonest sciatica levels from L4-L5 and L5-S1 disc prolapse.
Say it aloud, write it from memory tomorrow, then again in a week. Then test yourself on a Orthopaedics question about Spine.
It is a teaching aid written or adapted by our team. Some resemble ones students share informally. Check any fact that matters in a standard source.