5 Signs your Ankle Sprain Might be a Fracture

If you have ever played basketball, tennis, volleyball or even walked on an uneven sidewalk, you may have been a victim of an ankle sprain.  With almost every sprain there is an ominous “pop” or significant bruising. For the 25,000 people who suffer from an ankle sprain each day in the United States alone, it is possible that the popping sound or bruise that covers the entire outside of the foot may be a fracture instead.  Unfortunately, the things we subconsciously hold synonymous with a sprain can also happen with a fracture.

Although there are many variations of a fracture, the definition is quite simple.  It is a break or interruption in bone continuity.  But what exactly is a sprain?  An ankle sprain isn’t as straight forward as a fracture.  It involves some level of damage to a ligament, whose role is to support the interaction between two bones.  The damage can be a partial tear, complete tear or stretching of the ligament.  This results in pain and instability of the joint.

Sprained Ankle or Ankle Fracture, University Foot and Ankle Institute.In both fractures and sprains, you can have pain, swelling, bruising and it may be difficult to walk.  For those of us with an x-ray machine or an MRI handy, it can be fairly easy to discern between the two.  But how do you know the difference without advanced imaging or x-ray vision?

Here are 5 signs that your ankle sprain may be a fracture:

1) Inability to place weight on your foot

The main function of a ligament is the stability of the ankle, they are mostly stressed in side-to-side movement.  Most people with an ankle sprain can walk or, at least, place weight on their foot without significant pain.  There are always outliers to this generalization, but the pain level with a fracture is going to be much higher, especially when placing weight on that area.

2) Pain directly to the bone

The ankle is made up of the fibula (outside bone), tibia (inside bone) and the talus, which is the part of the foot connected to the ankle.  Although ligament injuries can cause pain at the edges of those bones because it is where they attach, a fracture will have pain in a much larger area.  Pressing upwards along the ankle bone is not going to commonly produce pain in the setting of a sprain.  Be sure to also check the 5th metatarsal bone, which is located on the outside of the foot.  This is commonly fractured during an ankle sprain, but also easily missed.

3) Visible protrusion of the bone

Swelling is common in both a fracture and a sprain, but a fracture results in a piece of bone becoming unstable from the rest of the bone.  In most cases the surrounding soft tissue provides enough support to keep the bone in place.  In some instances, the fractured piece of bone is moved out of position.  This results in a protrusion of bone which can be visually evident on examination.

4) Bruising extending higher up the leg

Similar to swelling, bruising accompanies almost every ankle sprain and fracture.  Ligaments tend to be located at the tips of the bones in the ankle.  Because of this, any bruising will be located around the tips of those bones.  Bones are very vascular, meaning they have a lot of blood flow, which results in more bruising.  A fracture that occurs at the tip of the bone can have similar bruising patterns, but many fractures occur higher up the leg.  The resulting bruising can be seen extending higher up the ankle.

5) Persistent pain

Pain is likely to accompany both and ankle sprain and fracture.  With appropriate treatment of rest, ice and compression most ankle sprains have significant decrease in pain after the first week.   If your pain continues beyond that point, there is a higher likelihood that a more extensive injuries is present.

ankle-fracture-mainNot all ankle sprains or fractures will apply to these general rules.  Certain ankle sprains can require extensive treatment and longer recovery time.  Because of this, it is always critical to have prompt evaluation by a physician, which can result in early proper treatment, quicker recovery and better long- term results.

The team of experts at UFAI are nationally recognized experts in the field of foot and ankle care. They have decades of combined experience and pride themselves in offering the best and most advanced care. If you have suffered an ankle injury or have any questions regarding foot and ankle care, we encourage you to call us at (877) 989-9110 or visit us at www.footankleinstitute.com.

Dr. Jason Morris

Dr. Jason Morris

Dr. Jason Morris graduated from Illinois Wesleyan University (where he ran on the track and cross country teams), and went on to complete his medical training at Des Moines University and a three-year comprehensive foot and ankle surgical residency at the University of Pittsburgh Medical Center. His emphasis was on sports medicine, foot and ankle trauma, reconstructive surgery and diabetic limb salvage.

As an avid athlete, Dr. Morris developed a special interest in preventative medicine and treatment of sports related injuries. He also has extensive experience in foot and ankle trauma, reconstructive surgery and arthroscopy. In addition, Dr. Morris currently works as a consultant for several companies specializing in joint implants for feet and ankles.
Dr. Jason Morris

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