**Core Concept**
The common peroneal nerve is a branch of the sciatic nerve that innervates the muscles of the lateral and anterior compartments of the leg, including the peroneal muscles responsible for ankle dorsiflexion and eversion. Injury to this nerve can result in weakness or paralysis of these muscles.

**Why the Correct Answer is Right**
Injury to the common peroneal nerve at the lateral aspect of the head of the fibula typically results in weakness of foot eversion and ankle dorsiflexion due to the involvement of the peroneus longus and peroneus brevis muscles. This is because the nerve fibers responsible for innervating these muscles are located in the lateral aspect of the nerve. The affected muscles may exhibit atrophy, and patients may experience difficulty walking on uneven surfaces.

**Why Each Wrong Option is Incorrect**
* **Option A:** (Insert option A text here) This option is incorrect because injuries to the common peroneal nerve typically result in weakness of ankle dorsiflexion and eversion, not inversion. The muscles responsible for ankle inversion, such as the tibialis anterior, are innervated by the deep peroneal nerve, a branch of the common peroneal nerve that is not typically affected by injuries at the lateral aspect of the head of the fibula.
* **Option B:** (Insert option B text here) This option is incorrect because injuries to the common peroneal nerve at the lateral aspect of the head of the fibula typically result in weakness of ankle dorsiflexion, not plantarflexion. The muscles responsible for ankle plantarflexion, such as the gastrocnemius and soleus, are innervated by the tibial nerve, which is not typically affected by injuries to the common peroneal nerve.
* **Option C:** (Insert option C text here) This option is incorrect because injuries to the common peroneal nerve at the lateral aspect of the head of the fibula typically result in weakness of foot eversion, not inversion. The muscles responsible for foot inversion, such as the tibialis posterior, are innervated by the tibial nerve, which is not typically affected by injuries to the common peroneal nerve.

**Clinical Pearl / High-Yield Fact**
It is essential to note that the common peroneal nerve is a common site for compression neuropathy, often due to prolonged compression by a tight fibular head or a fibular head fracture. This type of injury can result in significant weakness of the peroneal muscles, leading to difficulty walking and increased risk of falls.

**Correct Answer: D.**