Most dogs cannot walk normally with a dislocated shoulder. After a traumatic shoulder dislocation, dogs are typically non-weight-bearing on the affected leg, meaning they hold it off the ground entirely and move on three legs. Some dogs with milder instability or a congenital (present from birth) dislocation may still put partial weight on the limb, but even then, their gait is visibly abnormal at both a walk and a trot.
What Walking Looks Like With a Dislocated Shoulder
A dog with shoulder instability will usually show a pronounced head bob, dipping their head down when stepping on their good leg and lifting it up when the injured leg hits the ground. This is the body’s instinctive way of shifting weight away from pain. In a full traumatic dislocation, most dogs simply refuse to use the leg at all, carrying it tucked or dangling while hopping on the other three limbs.
There is one exception. Dogs born with congenital shoulder luxation, particularly when both shoulders are affected, sometimes adapt surprisingly well and show very little obvious impairment in their movement. This is more common in small breeds like Toy Poodles, where the joint socket develops abnormally. These dogs essentially grow up compensating for the instability, so the lameness can be subtle or intermittent rather than dramatic.
Medial vs. Lateral Dislocation
The shoulder joint can dislocate in two directions, and each tends to affect different dogs. Medial luxation (the upper arm bone shifts inward, toward the chest) can happen in any breed but is particularly common as a congenital condition in small breeds. When it’s congenital, it’s often bilateral, affecting both shoulders, and the joint socket remodels over time in a way that makes it very difficult to pop back into place.
Lateral luxation (the bone shifts outward, away from the body) occurs most often in large breeds after a traumatic event like being hit by a car, a hard fall, or a collision during play. Regardless of direction, the result is the same: the joint is unstable, surrounding soft tissue is damaged, and the dog is in pain.
Signs Beyond Limping
A dislocated shoulder produces more than just lameness. You may notice swelling around the shoulder area, your dog flinching or crying when the leg is touched or moved, and a reluctance to lie on that side. The affected leg may appear shorter or hang at an unusual angle compared to the other front leg. Some dogs become withdrawn, lose interest in food, or pant excessively from pain.
In severe cases, the force that dislocates the shoulder can also damage the brachial plexus, the bundle of nerves running from the spine down into the front leg. If these nerves are stretched or torn, the dog may drag the top of the paw along the ground and lose sensation below the elbow. This is a serious complication that changes the treatment picture significantly.
How a Dislocation Is Diagnosed
Your vet will start by carefully manipulating the shoulder to check for pain and abnormal looseness in the joint. This initial assessment can often happen while the dog is awake, though sedation or anesthesia is sometimes needed for a thorough exam. X-rays confirm the diagnosis and reveal the direction of the dislocation. Stress radiographs, where the joint is gently pushed into specific positions during imaging, can measure exactly how much instability is present. These images also rule out fractures, which sometimes accompany dislocations.
Non-Surgical Treatment
If the dislocation is caught quickly, the vet may attempt a closed reduction, which means manually guiding the bone back into the socket under anesthesia. This approach works best within the first 24 to 48 hours after the injury. Once four to five days have passed, swelling and muscle spasm make closed reduction much harder and often unsuccessful.
When the joint stays in place after being reset, a bandage or sling is applied for about 14 days. The specific type depends on the direction of the dislocation. For a medial luxation, the leg is flexed against the chest wall in a Velpeau sling. For a lateral luxation, a non-weight-bearing bandage holds the leg in a more natural position. During this period, your dog needs strict rest so the surrounding ligaments and joint capsule can begin healing.
When Surgery Is Needed
Surgery becomes necessary when closed reduction fails, when the joint won’t stay in place after being reset, or when the dislocation has been present for too long. Chronic or congenital dislocations almost always require a surgical approach because the joint structures have remodeled and can no longer hold the bone in position on their own.
The most common surgical technique involves repositioning the tendon of the biceps muscle to act as a stabilizer for the joint. This is sometimes combined with prosthetic sutures (synthetic material that mimics the function of damaged ligaments) and a rigid splint or body cast applied after the procedure. While the surgery carries some risk of complications, it remains the recommended approach for traumatic lateral shoulder dislocations. After surgery, the limb is bandaged or splinted for roughly 14 days, similar to the non-surgical timeline.
Recovery and Returning to Normal Activity
Regardless of whether the shoulder is treated surgically or with closed reduction, the recovery period follows a similar pattern. The first two weeks focus on immobilization and rest. After the bandage comes off, your vet will outline a gradual return to activity, typically starting with short, controlled leash walks and slowly increasing duration over several weeks.
Physical therapy can speed things along and improve outcomes. Options include laser therapy to reduce inflammation, passive range-of-motion exercises where the therapist gently moves the joint through its full arc, and hydrotherapy (walking on an underwater treadmill) that allows the dog to rebuild muscle without putting full weight on the joint. Because a shoulder dislocation usually involves significant soft tissue damage to ligaments, the joint capsule, and surrounding muscles, full healing typically takes a few months even when everything goes well.
Dogs with congenital dislocations that go untreated can develop secondary problems over time. In one documented case, a 10-month-old Poodle with congenital shoulder luxation developed a contracture of the elbow joint from chronic disuse, severely limiting the leg’s range of motion. Early treatment helps prevent these kinds of cascading complications.
Small Breeds vs. Large Breeds
The underlying cause and outlook differ quite a bit depending on your dog’s size. Small breeds are more prone to congenital shoulder instability, where the socket itself is malformed. These cases tend to show up in the first year of life with intermittent lameness that may seem mild at first. Because the joint is structurally abnormal, these dogs often need surgical correction, and simple reduction rarely works long term due to the remodeled bone.
Large breeds are more likely to experience traumatic dislocations from high-energy injuries. Their stronger musculature can sometimes help stabilize a joint after closed reduction, but the force of the initial trauma also means more extensive soft tissue damage. Lateral dislocations, more common in large dogs, frequently require surgical stabilization to prevent re-dislocation once the sling comes off.