**Core Concept**
Inversion injuries at the ankle can lead to various complications due to the complex anatomy of the ankle joint, which involves the articulation of the distal tibia and fibula with the talus. The deltoid ligament, a strong fibrous ligament on the medial (inner) side of the ankle, provides stability to the ankle joint.
**Why the Correct Answer is Right**
Inversion injuries can cause damage to the ligaments, including the deltoid ligament, leading to instability and chronic pain. The mechanism of injury involves the medial malleolus of the tibia being forced inward, causing stress on the deltoid ligament and potentially leading to tears or sprains. In severe cases, the deltoid ligament can become inflamed and painful, contributing to ankle instability.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because inversion injuries can indeed cause deltoid ligament damage.
**Option B:** This option is incorrect because inversion injuries can cause chronic pain and instability, which may lead to osteoarthritis in the long term.
**Option C:** This option is incorrect because inversion injuries can cause peroneal tendonitis, particularly the peroneus brevis tendon, due to the altered biomechanics of the ankle.
**Clinical Pearl / High-Yield Fact**
It's essential to remember that inversion injuries can lead to chronic ankle instability (CAI), which is characterized by repeated episodes of ankle giving way, pain, and limited ankle function.
**Correct Answer: D.**
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