A dislocated knee is a relatively uncommon injury. Ligaments connect the bones of the knee, and a ligament tear caused by extreme force can push the knee out of its normal position. Most knee dislocations are linked to traumatic events such as falls or collisions, and people who play soccer or football are at particularly high risk. Understanding how to treat the injury and the recovery steps that follow can make a real difference to outcomes.
What Are the Common Causes of Knee Dislocation?
Knee dislocations are most commonly caused by high-impact injuries such as car accidents, serious falls, or sports activities. It's a severe injury that requires realignment of the dislocated bones, and even bending or straightening the knee becomes painful. Common causes include:
- Excessive pressure on the knee joint: Running at speed and changing direction quickly puts significant stress on the joint, which can lead to dislocation if the strain is too great.
- Weak knee bones and joints: Weaker knees carry more strain during everyday movement, increasing the risk of patellar dislocation and limiting participation in athletic activity.
- Obesity: Kneecap dislocation is more common in people who are significantly overweight, even without an acute injury, since excess weight places ongoing strain on the joint.
- Misaligned patella: A misaligned kneecap increases the risk of dislocation and can worsen over time if left untreated.
How Can I Identify That My Knee Is Dislocated?
Visible swelling and deformity around the knee are common signs, along with a lower limb that appears shorter or misplaced, and pain with any movement of the joint. Around half of all knee dislocations relocate before reaching hospital care. Leaving the injury untreated can be dangerous, as it may lead to further complications, including:
- Compression or damage to the peroneal nerve, which runs along the calf
- Rupture or blockage of the popliteal vein at the back of the knee
- Deep vein thrombosis (DVT)
How Is a Dislocated Knee Treated?
How is a dislocated knee treated? Treatment generally follows three steps: a doctor first realigns the joint (reduction), the knee is then immobilised in a brace to prevent further movement while the ligaments heal, and physiotherapy follows once initial healing allows safe movement. More severe dislocations involving torn ligaments, nerve damage, or blood vessel damage may require surgery. Delaying treatment increases the risk of tissue atrophy, reduced range of motion, and long-term stiffness.
How to Choose a Knee Brace for a Dislocated Knee
The following types of knee brace are commonly used to support a dislocated knee:
- Knee support brace: A knee brace can help protect the joint and support recovery. It's important to choose one that's comfortable and easy to use — it should provide stable pressure across the knee joint and ligaments, helping relieve strain on the patella and allowing freer movement.
- Neoprene knee support: Neoprene supports provide continuous compression and warmth, which can help ease swelling, discomfort, and soreness throughout the day. They're often worn under clothing and can be used as part of post-surgery recovery.
- Compression knee support: Compression knee braces give support and even pressure to a dislocated knee, offering protection and comfort. They suit athletic activities such as football, hiking, and running, and are often worn during recovery from knee fractures, dislocation, or other injuries.
- Patella knee straps: These use an adjustable strap to fit around the knee and are popular for sports involving a lot of jumping and running. They can support athletic performance and help manage discomfort linked to dislocation or sports-related knee injuries.
- Patella knee brace with double straps: Double-strap braces help stabilise the patella while absorbing shock, providing compression to help ease pain and stiffness. The dual straps apply targeted pressure around the knee, which may help reduce stress and support faster comfort during recovery.
Verdict
Knee dislocation is a serious injury, and delaying treatment can lead to significant complications. In cases involving major blood loss, surgery may be required. Wearing a knee brace afterwards can help stabilise and strengthen the joint again, supporting recovery and helping reduce the risk of re-injury.
It's essential to choose a knee brace that's both comfortable and simple to use. 360 Relief knee braces and supports provide stable pressure across the knee joint, helping give you the support and protection you need while your knee recovers.
