**Core Concept**
The fibular neck fracture involves the area where the peroneal nerve wraps around the lateral aspect of the fibula. The peroneal nerve is a branch of the common peroneal nerve (also known as the common fibular nerve), which is a branch of the sciatic nerve.

**Why the Correct Answer is Right**
The common peroneal nerve, also known as the common fibular nerve, wraps around the lateral aspect of the fibula at the fibular neck. This anatomical location makes the common peroneal nerve particularly susceptible to injury in cases of fibular neck fractures. The common peroneal nerve then divides into the deep peroneal nerve and the superficial peroneal nerve, which supply the muscles and skin of the anterior and lateral compartments of the leg, respectively. Damage to the common peroneal nerve can lead to weakness and paralysis of these muscles, resulting in foot drop and difficulty with balance and walking.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because the tibial nerve is located on the medial aspect of the fibula and is not typically injured in fibular neck fractures.
* **Option B:** This option is incorrect because the sural nerve is a branch of the common peroneal nerve, but it is not the primary nerve injured in fibular neck fractures.
* **Option D:** This option is incorrect because the saphenous nerve is a purely sensory nerve that arises from the femoral nerve and does not supply the muscles of the leg.

**Clinical Pearl / High-Yield Fact**
In cases of fibular neck fracture, it's essential to assess for peroneal nerve injury, as early recognition and treatment can significantly improve outcomes. The peroneal nerve can be tested by assessing ankle dorsiflexion and eversion.

**Correct Answer: C. Common peroneal nerve.**