Tendonitis is an inflammation the tendons. The inflammation is caused by activities involving repetitive use of the tendon, overuse of the tendon, or trauma (such as an ankle sprain). Symptoms of tendonitis include:

• Pain
• Swelling
• Warmth to the touch

Tendon Ruptures are caused by repetitive activity or trauma. Immediate symptoms of ruptures include:

• Pain
• Swelling
• Weakness or instability of the foot and ankle

Because tendon injuries are sometimes misdiagnosed and may worsen without proper treatment, prompt evaluation by a foot and ankle surgeon is advised. To diagnose a tendon injury, the surgeon will examine the foot and look for pain, instability, swelling, warmth, and weakness on the outer side of the ankle. In addition, an x-ray or other advanced imaging studies may be needed to fully evaluate the injury. The foot and ankle surgeon will also look for signs of an ankle sprain and other related injuries that sometimes accompany a peroneal tendon injury. Proper diagnosis is important because prolonged discomfort after a simple sprain may be a sign of additional problems.