Patient question
Will my kneecap dislocate again after the first time?
Quick answer
It may or may not. Many people never dislocate again after good rehabilitation, but the risk is higher in teenagers and when the groove is shallow, the kneecap sits high or the ligaments are loose. Imaging shows which factors apply to you, explains Dr. Pablo Gelber, who treats kneecap instability at Aman Hospital in Doha.
Why the answer differs from person to person
A first dislocation tears or stretches the medial patellofemoral ligament (MPFL), the inner restraint of the kneecap. Whether the knee stays stable afterwards depends partly on how well that ligament heals and how strong the muscles become, and partly on the shape of the joint you were born with.
Someone who dislocated in a heavy tackle with a normal-shaped knee is in a different position from someone whose kneecap slipped while simply turning, because the second situation suggests the anatomy itself makes slipping easier.
Factors that raise the risk
- Age: a first dislocation in the early teenage years carries a higher risk of repeat episodes
- Trochlear dysplasia: a shallow or flat groove at the end of the thigh bone
- Patella alta: a kneecap that rides high and engages the groove late
- An outward pull from the tendon attachment on the shin bone
- General joint laxity, or a dislocation in the other knee
- A previous dislocation in the same knee
What lowers the risk
Structured physiotherapy that builds quadriceps and hip strength, balance and landing control is the foundation for most people. Returning to sport gradually, only once strength and confidence are back, also matters.
When the kneecap keeps slipping despite good rehabilitation, or when the anatomy makes another episode very likely, surgery such as MPFL reconstruction is discussed. In selected cases realignment of the bone is added.
Getting a personal assessment in Doha
Your own risk depends on examination and imaging rather than averages. At Aman Hospital, Dr. Gelber measures the groove depth, kneecap height and tendon position on MRI, checks your other knee and general laxity, and talks through your sport and goals before suggesting a plan.
Frequently asked questions
Does each dislocation make the next one more likely?
Generally yes. Each episode can stretch the restraints further and may damage cartilage, which is why repeated dislocations are a common reason to consider stabilising surgery.
Can I have surgery after the first dislocation to stop it happening again?
Sometimes, mainly when there is a loose fragment that needs fixing or when imaging shows several strong risk factors. For most first episodes, physiotherapy is tried first.
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