The guide · topic
Mobility
Range of motion is the first thing a physiotherapist checks and the first criterion for moving on. These articles explain why a straight knee matters more than a bent one early on, what holds it bent, and how to measure both directions at home well enough to track them between appointments.
5 articles
Mobility · Measuring progress
How to measure knee extension at home
Why zero degrees is the wrong target, the two ways extension is measured, and how much of a day-to-day change is real rather than noise.
Mobility · Pain and swelling
Cyclops lesion after ACL surgery
What a cyclops lesion is, why a nodule of scar tissue can stop the knee straightening, how often it causes symptoms, and what is usually done about it.
Exercises · Mobility
When can you cycle after ACL surgery? Indoor bike to road
The stationary bike comes early, once the knee bends enough for the pedals to go round; a higher saddle brings that forward. Riding outdoors comes later.
Mobility · Early recovery
Why won't my knee straighten after ACL surgery?
Swelling, guarding and a quiet quadriceps hold the knee bent. Most straighten with heel props and quad work; a block that stays is checked for scar tissue.
Mobility · Measuring progress
How to measure knee flexion at home with your phone
What flexion and extension mean, why a phone's sensors are good enough to track them between physio visits, and how to take a reading you can trust.