Question

a clinician induces contraction of the gastrocnemius and soleus and notices that the foot does not plantar flex as expected. which of the following would be a logical diagnosis?
multiple choice
shin splints
lateral plantar nerve injury
ruptured calcaneal tendon
peroneal nerve injury
anterior compartment syndrome

Explanation:

The gastrocnemius and soleus muscles are primarily responsible for plantar flexion of the foot. The calcaneal tendon (Achilles tendon) connects these muscles to the heel bone. A ruptured calcaneal tendon would prevent effective transmission of the muscle contraction force, leading to impaired plantar flexion. Shin splints typically involve pain in the shin area (tibia) due to overuse or stress on the muscles and bones, not directly related to plantar flexion failure. Lateral plantar nerve injury would affect intrinsic foot muscles rather than the major plantar - flexing muscles. Peroneal nerve injury usually causes dorsiflexion problems (foot drop) rather than plantar flexion issues. Anterior compartment syndrome is related to increased pressure in the anterior compartment of the leg, affecting dorsiflexor muscles and causing pain, swelling, and possible nerve compression related to dorsiflexion, not plantar flexion.

Answer:

Ruptured calcaneal tendon