Orthopaedic Innovation

Kneecap (patella) fracture: causes, symptoms & treatment options

Proven, trusted Orthopaedic surgery to get you back to living your life sooner

What is a kneecap (patella) fracture?

A patella fracture is a break in the kneecap, the small bone at the front of the knee that protects the joint. It can range from a small crack to a complete break, making it difficult or impossible to straighten the knee or walk.

What causes a patella fracture?

Direct impact

A fall onto the knee or a strong blow, such as from a car accident.

Sudden muscle contraction

In rare cases, the quadriceps muscles (a group of muscles at the front of your thigh) can pull the kneecap apart during a strong movement.

Common symptoms of kneecap fracture

  • Severe pain in the front of the knee
  • Swelling and bruising
  • Difficulty or inability to straighten the leg
  • A visible gap or deformity if the bone has moved apart

How is knee arthritis diagnosed?

A doctor will diagnose a patella fracture using:

Physical examination

Checking knee movement and stability.

X-rays

To confirm the fracture and check for bone displacement.

Treatment options

Non-surgical treatments of kneecap fracture

For small cracks or fractures where the bone remains in place:

Rest and immobilisation

A brace or cast keeps the knee straight while the bone heals.

Physiotherapy

 Once healed, exercises help regain knee strength and movement.

Pain relief

Paracetamol or anti-inflammatory medication.

Surgical treatment of kneecap fracture

For fractures where the bone has moved or is broken into several pieces:

Bone fixation surgery

Screws, wires, or plates hold the kneecap together.

Partial or total patellectomy

In severe cases, part or all of the kneecap may be removed.

Recovery & rehabilitation for patella fracture

Mild fractures

Healing takes 6-8 weeks with a brace.

Severe fractures (surgery required)

Recovery may take 3-6 months, including physiotherapy.

When to see a specialist for your kneecap fracture

If you experience intense knee pain after a fall or impact, cannot straighten your leg, or notice significant swelling, seek medical help immediately.

Meet your knee specialists

At Orthopaedic Innovation, our world leading surgical team offers a range of treatment options for people experiencing patella fracture.
Locations

The Harley Street Hospital,
19 Harley Street,
London, W1G 9QJ
The Cromwell Hospital,
164-178 Cromwell Road,
London SW5 0TU
The London Independent Hospital,
1 Beaumont Square,
London E1 4NL
Medical disclaimer
The information provided on this website is for informational purposes only and should not be considered medical advice. It is not intended to replace consultation with a qualified healthcare professional. While we strive to provide accurate and up-to-date information, medical knowledge is constantly evolving, and individual cases may vary. Any surgical or non-surgical treatments discussed on this website should be considered in consultation with a medical professional who can assess your individual needs and medical history.
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