Below is the completed Lower Back Pain Memory Matrix.
| Nerve Root | L4 | L5 | S1 |
|---|---|---|---|
| Disc | L3 | L4 | L5 |
| Pain Radiation Endpoint | Medial Calf | Great Toe | Lateral Toe |
| Motor Weakness | Extension of the Quadriceps | Dorsiflexion of the Great Toe and Foot | Plantar Flexion of the Great Toe and Foot |
| Screening Test | Squat and Rise | Heel Walking | Toe Walking |
| Reflexes (Diminished) | Patellar | None | Achilles |