Achilles Tendon Strain vs. Rupture: How Can You Tell the Difference?

Foot & Ankle Surgery

Man holding his ankle after an Achilles tendon strain in Wichita An Achilles tendon strain usually causes soreness, stiffness, and swelling while leaving some strength and movement intact. A rupture is a partial or complete tear that’s more likely to cause sudden pain, a popping sensation, and difficulty pushing off the injured foot. Because the symptoms can overlap, an orthopedic evaluation is the safest way to tell what occurred and determine whether you need professional care.

Serving Wichita, Wellington, and Winfield, KS, Advanced Orthopaedic Associates, P.A. provides surgical and nonsurgical care for Achilles tendon injuries. John A. Childs, DO, and John W. Fanning, MD, are fellowship-trained, board-certified orthopedic surgeons specializing in foot and ankle disorders.

What Does an Achilles Tendon Strain Feel Like?

The Achilles tendon connects your calf muscles to your heel bone and helps you walk, run, jump, and rise onto your toes. A strain involves overstretching or damage to some of the fibers without a complete tear.

Symptoms often build gradually or appear after increased activity. You might notice:

  • Aching or tenderness above the heel
  • Stiffness after resting or first thing in the morning
  • Mild to moderate swelling
  • Pain that increases while running, climbing stairs, or jumping
  • Reduced calf strength without a complete loss of function

You may still be able to walk with a strain. However, continuing strenuous activity can worsen the injury, so don’t try to run through persistent discomfort.

Signs of an Achilles Tendon Rupture

A rupture commonly happens during a sudden push-off, jump, pivot, or awkward landing. Many people describe hearing or feeling a pop and sensing that someone kicked them in the back of the leg.

Other warning signs include:

  • Sudden, sharp pain near the heel or lower calf
  • Rapid swelling or bruising
  • Trouble pushing the foot downward
  • Difficulty walking normally
  • An inability to stand on your toes on the affected side
  • A possible gap in the tendon

Some people can still walk after a rupture, so being able to take a few steps doesn’t rule out a serious tear.

How Is the Injury Diagnosed?

During an exam, your orthopedic specialist will ask how the injury occurred and check your tenderness, swelling, strength, and ankle movement. A calf-squeeze test may be used to see whether your foot moves when the calf is compressed.

Imaging isn’t always necessary, but an ultrasound or MRI may help identify tendon thickening, degeneration, a partial tear, or a complete rupture. Your results, activity level, health, and injury severity will help guide the treatment plan.

When Should You Seek Orthopedic Care?

Seek prompt medical attention when you hear a pop, develop sudden severe pain, can’t push off the foot, or struggle to walk. Until you’re evaluated, stop the activity, limit weight-bearing, and avoid stretching or forcefully moving the ankle.

Schedule an Exam Today

For persistent or sudden Achilles tendon symptoms, contact us to arrange an evaluation with Advanced Orthopaedic Associates. The foot and ankle team serves Wichita, Wellington, and Winfield, KS, and can be reached at (316) 631-1600.

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