Carpal Flexural Deformities in Puppies

Updated on July 30, 2019
Astralrose profile image

Rham is vegan, married and child-free; she loves nature and wildlife, has two dogs and six, sometimes seven, other four-legged boarders.

Limb Deformities in Puppies
Limb Deformities in Puppies | Source

What Exactly Is a Carpal Flexural Deformity?

Perci, a rescued puppy who now lives with us, suffered from a flexural deformity of the carpus—or wrist, in layman's terms. Perci's deformity sounded so 'medical' to me that it compelled me to read a few articles about it in order to understand what it is.

The condition is also referred to as knuckling over, carpal hyperextension, carpal hyperflexion, or most recently, carpal laxity syndrome. It is first noticed in the growth plates of animals in the front legs (wrist or carpal area). The condition occurs when a dog's front-end (the part of the body which bears weight) is unable to support its total body weight due to a lack of integrity in the muscle, tendons and ligaments.

In the picture below, you can see that Perci's left leg is bent. So instead of walking on her toes, she walked on her wrist to support her weight. Because bending her left leg decreased the height on her left side, her right wrist slowly decreased in height, resulting in a plantigrade stance that levels with the height of the left leg. As you can see in the picture, her wrist is touching the ground, which makes it looked extended.

Hyperflexion/buckling over on Perci's left leg. The right leg is hyperextended to make it even with the left leg.
Hyperflexion/buckling over on Perci's left leg. The right leg is hyperextended to make it even with the left leg. | Source

What Happened to Perci?

Perci, a Bakharwal blend (I believe), was dropped by a heartless person (he or she did not think about the consequences of the act) at the primary hospital, Khirsu, where my husband worked as a medical officer.

What Caused the Deformity?

Perci developed this deformity around two weeks after she was rescued. It was a problem we couldn't find an answer to. No one around knew what was happening with her leg. At first, we thought she had a foot infection and that she would just get over it in a couple of days, but it got worse.

While she walked, it looked like her left leg was scooping something out of the ground and then the right leg would flatten and expand. So instead of walking on her toes, she was walking on her wrists to balance the 'bowing' left leg. You can see the expansion in her right leg in the picture above.

We Searched the Internet for Information on the Condition

You can search Google for 'bent leg on puppies' and 'common problems in puppies', among other phrases. There are also some helpful and applicable videos that you can watch on YouTube.

Some articles said that the puppy will overcome this condition, which we also thought at first. Some suggested splinting or casting, which was a problem for us because the splints we saw on the internet were not available around our area (a remote little town in India). Online buying? Well, it was an option to consider, but a last resort.

Carpal Flexural Deformity Facts

Here are a few important things to know about this deformity:

  • It is common in medium to large dog breeds.
  • It generally manifests in puppies who were separated from their mothers at an early age or those who have been on cow's milk.
  • It is thought to be caused by too much protein in the diet.
  • It is also thought to be caused by walking on smooth surfaces most of the time.
  • The ages of the puppies affected by this deformity range between 6–24 weeks.
  • The deformity occurs most frequently during the 6 to 8-week period.
  • In some cases, many puppies overcome the deformity without intervention.
  • Splinting or casting may help get the leg back to normal.

Consult a Vet

It's important to consult a vet. Cases in which there was no intervention led to lifelong deformities.

Click thumbnail to view full-size
Carpal flexural deformity resolved. Perci's legs are fine and she's standing on her toes.Perci with her splint.Perci looking at the splint, which she chewed quite a few times, wondering whether to rip it off again or just let it be!
Carpal flexural deformity resolved. Perci's legs are fine and she's standing on her toes.
Carpal flexural deformity resolved. Perci's legs are fine and she's standing on her toes. | Source
Perci with her splint.
Perci with her splint. | Source
Perci looking at the splint, which she chewed quite a few times, wondering whether to rip it off again or just let it be!
Perci looking at the splint, which she chewed quite a few times, wondering whether to rip it off again or just let it be! | Source

How Simple Splints Are Made

Here's some information about how simple splints are made:

  • Thin pieces of wood that are scraped smooth and flattened may work as a splint. The wood may be chopped and scraped with a sharp kitchen knife to smooth the edges. The piece should be long enough to cover the entire length of the puppy's leg. A tape measure may be used to make sure that the piece is wide enough to cover the back of the leg, but not too short or too long.
  • Wood may be cushioned with thick cotton (to serve as a pad). The cotton can be secured with surgical tape.
  • Splints are often applied with the help of two people: one to hold the puppy and the other to attach the splint.
  • When a splint is positioned at the back of the leg, it can be wrapped using gauze or VetRap.
  • Wrapping should begin at the farthest end of the extremity, like the toes or wrist, and up the limb. This encourages lymph and blood flow. Otherwise, pooling and swelling can occur in the toes.
  • The wrapping should neither be too tight nor too loose. If it's too tight, it can occlude the limb and cause tissue death or even lead to amputation. Too loose, and the puppy will definitely tear it.
  • The ends of the splint can be secured with surgical tape. Loose ends should be removed.

Caution

The incorrect application of a splint or cast can occlude tissue or cause swelling in the lower extremities. In some cases, this may result in tissue death and amputation.

Perci is now 1 year old. Here her legs are muddy after a morning walk in the hilly meadows of Koteshwar.
Perci is now 1 year old. Here her legs are muddy after a morning walk in the hilly meadows of Koteshwar. | Source

Suggestions Based on My Experience With Perci

Based on my personal experience with two puppies (after Perci, another rescued puppy suffered from the same condition), here are a few suggestions that might help you:

  • When you notice a slight bend in your puppy's leg and she/he is a medium to large-breed dog, don't panic; it can be fixed with proper care.
  • Protein in the diet is good for puppies and adult dogs (and even humans), but too much of it can be dangerous.
  • To avoid this condition, never take puppies in if they are still not weaned.
  • If your floor surface is smooth, provide a rough mattress so puppies can use it for stretching.
  • Allow the puppies to walk outside on natural surfaces as much as possible. Take them to a park or a place where there is enough earth for them to dig or run. This allows them to use their leg muscles properly. (Make sure they are current on their vaccinations!)
  • When splints are on, the most effective way to divert their attention is to take them for a walk. While at home, a little more attention is required to keep them from chewing the tape or gauze.

Animals deserve our care.
Animals deserve our care. | Source

It Is Our Responsibility to Help Our Animal Companions

It is important that we care for companion animals like dogs because they are family. The world is sometimes unsafe for them. For example, our neighbors are either afraid or indifferent towards dogs. Some immediately grab a rock when they see a dog heading towards them with the intention of throwing the rock to get rid of the dog. There is still a long road ahead until we reach a point when animals can roam free in an animal-friendly community.

This is my first time actually taking care of dogs. First-timers need to learn a lot, especially with no one around to ask for help. Although deformities such as this can be easily fixed, knowledge is still crucial in helping us deal with such circumstances. This article is my way of helping others by imparting knowledge based on my own personal experience.

Have you had the same experience with your dog?

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If yes, what did you do?

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How to Apply a Leg Splint on a Dog

This article is accurate and true to the best of the author’s knowledge. It is not meant to substitute for diagnosis, prognosis, treatment, prescription, or formal and individualized advice from a veterinary medical professional. Animals exhibiting signs and symptoms of distress should be seen by a veterinarian immediately.

Questions & Answers

Comments

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    • hmkrishna profile image

      Halemane Muralikrishna 

      2 days ago from Murali Sadan, Ichlampady PO, Kasaragod, India - 671321

      I thin you may feed your dog with osteo-calcium supplement

    • profile image

      Kat 

      6 months ago

      Grapes are toxic for dogs. Though dogs can survive on plant based diets they don't tend to thrive on them. This condition is also known as knuckling. Great article.

    • profile image

      Monica 

      7 months ago

      Thank you for your article! It was very informative. We already got the DIY splint on our puppy. Hoping it works!

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