Diagnosis and Management of Neck and Back Pain in Primary Care by Collins R. Douglas;

Author:Collins, R. Douglas;
Language: eng
Format: epub
Publisher: Wolters Kluwer

FIGURE 3-17: Power Dorsiflexion of Foot and Toes

FIGURE 3-18: Power Plantar Flexion of Foot and Toes

Move on to testing the power of knee flexion (Figure 3-19) and extension (Figure 3-20). Note any difference. Weakness on extension is often an indication of L4 radiculopathy.

FIGURE 3-19: Power Flexion at the Knee

FIGURE 3-20: Power Extension at the Knee

The deep tendon reflexes are next tested at the knee and ankle and checked for comparison (Figure 3-21). An absent ankle jerk on one extremity is strong evidence of an S1 radiculopathy, while a diminished ankle jerk may indicate an L5 or S1 radiculopathy. A diminished knee jerk on one lower extremity suggests an L4 radiculopathy.

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