Glossary

Prehabilitation (prehab)

Quick answer

Prehabilitation, or prehab, is targeted exercise and preparation in the weeks before surgery to reduce swelling, restore movement and build strength, so the knee goes into the operation in better condition. Dr. Pablo Gelber, knee surgeon at Aman Hospital in Doha, encourages it before ACL reconstruction and knee replacement.

What it is

Prehab is usually guided by a physiotherapist. After an ACL injury it focuses on settling swelling, regaining full straightening and good bending, walking without a limp and activating the quadriceps. Before knee replacement it includes strengthening, range-of-motion work, balance and practice with crutches.

It can also cover general health: managing blood sugar, stopping smoking, safe weight loss and arranging the home.

Why it matters for patients

Studies show that people who go into ACL surgery with a quiet, fully straightening knee and good quadriceps control tend to regain function sooner and have a lower risk of stiffness afterwards. Before knee replacement, prehab can make the first weeks easier and help with confidence.

It also gives time to learn the exercises you will need after surgery, while you are not in pain from the operation.

What a plan looks like

Typical prehab lasts a few weeks, with physiotherapy sessions plus daily home exercises, ice and compression for swelling, and cycling or pool work as the knee allows. In Qatar's summer, indoor or early-morning sessions are easier. Your surgeon decides when the knee is ready for surgery.

Frequently asked questions

Will prehab delay my ACL surgery?

It may add a few weeks, but operating on a stiff, swollen knee raises the risk of stiffness afterwards. Most patients gain more than they lose from waiting until the knee is ready.

Can prehab replace surgery?

For some people, especially with ACL tears and lower demands, rehabilitation alone works well. For others it simply prepares for surgery. Your examination and goals guide that decision.