When a kneecap dislocates, it is painful, alarming and hard to forget. The kneecap (the patella) usually slips to the outer side of the knee during a twist, a jump-landing or a knock, and even once it is back in place, one question tends to dominate: will it happen again?
The research gives a clear steer, and it also shows why what you do next really matters. Here is what a patellar dislocation is, how likely it is to recur, why age matters, and how rehabilitation helps.
In this article
What is a patellar dislocation?
The kneecap normally glides in a groove at the front of the knee. In a dislocation, it is forced out of that groove, almost always towards the outer side of the knee. It often happens with a sudden twist, an awkward landing or a direct blow in sport.
Once it has happened, the knee can be left feeling unstable, as though the kneecap might slip again. This ongoing sense of the kneecap not tracking reliably is known as patellar instability.
Will my kneecap dislocate again?
This is the question that matters most, and the research gives a clear message.
Higher in adolescents
The risk is higher in adolescents and those whose growth plates are still open. Guided rehabilitation to rebuild quadriceps and hip control, along with load management, is central to recovery.
In other words, a first dislocation is a fork in the road. It does not mean a repeat is inevitable, but it does mean the knee deserves proper attention rather than being shrugged off once the swelling settles.
Why does age matter?
Younger knees tend to face a higher risk of recurrence for a mix of reasons. Adolescents are often more active in twisting and jumping sports that load the kneecap, and factors like still-open growth plates and individual knee anatomy can make the kneecap more prone to slipping again.
This is not a reason to panic. It is a reason for a young athlete, and their family, to take a first dislocation seriously and follow a structured plan rather than rushing back.
What should I do right after a dislocation?
At the time of injury, a suspected kneecap dislocation should be assessed by a doctor or emergency care, both to check the knee and to make sure the kneecap is safely back in its groove. Do not try to force it back yourself, and it is important to have any associated injury identified.
Once the acute stage is managed, the focus shifts to protecting the knee early and then progressively rebuilding the strength and control that keep the kneecap tracking well.
How does rehabilitation help?
Because control and load are such important factors, guided rehabilitation is central to recovery. The aim is to restore the strength and control of the quadriceps and hip muscles that steer the kneecap, then gradually reload the knee so it can handle daily life and sport again.
A physiotherapist in Mount Gravatt can assess your knee, stage your rehabilitation from early control work through to sport-specific loading, and help you understand what is realistic for your situation. For some knees, particularly those with specific risk factors or repeated dislocations, surgical options are discussed too, and your treating team can talk you through what suits you.
When should you seek help?
Consider getting assessed if
You have dislocated your kneecap, your knee feels like the kneecap might slip or give way, or you are a young athlete wanting to return to sport with confidence. A suspected dislocation should be assessed by a doctor or emergency care at the time of injury. After that, a physiotherapist can build a rehabilitation plan matched to your age, sport and goals.
Helping You Perform at Your Best
At ACE Sports Medicine in Upper Mount Gravatt, our physiotherapists provide personalised knee rehabilitation and load management for people across Brisbane's southside, from young athletes to weekend players. We will assess your knee and build a staged plan matched to your age, sport and goals.