Day 0 — surgery day
You will stand the same day
Surgery takes 60–90 minutes, usually under spinal anaesthesia so you are comfortable but
not fully asleep. Within a few hours a physiotherapist has you sitting, and most patients stand
and take a few steps with a walker the same evening. It sounds alarming. It is deliberate —
early movement is what prevents clots and stiffness.
Day 1–3 — in hospital
Walking to the bathroom, then the corridor
Pain is controlled with a combination of medicines rather than one strong drug. You will walk
further each day, learn to manage stairs, and start bending exercises. Most people are managing
90° of bend before discharge. Expect swelling and bruising — both are normal and both
look worse than they are.
Week 1–2 — at home
The hardest fortnight
This is the stretch nobody warns you about. You are home, the novelty has gone, sleep is
broken, and the exercises hurt. Walking indoors with a walker, icing several times a day,
elevating the leg. Stitches or clips come out around day 12–14. Most people need help at
home during this period — arrange it in advance.
Week 3–6
It turns a corner
Walker to a stick, then often to nothing indoors. Bending typically reaches 100–110°.
Sleeping improves. You can usually return to desk work around week 4–6, and drive once you
can perform an emergency stop without pain — commonly week 4–6 for a right knee,
sooner for a left in an automatic.
Month 3
Normal life, mostly
Walking without support, stairs comfortably, most household activity. Bending 110–120°
or more. Swelling after a long day is still normal and can continue for months — it is not a
sign that something is wrong.
Month 6–12
The last of it
Strength keeps improving for a full year. Occasional aching in cold weather, some numbness in
a patch of skin beside the scar (usually permanent, and harmless), and clicking sounds from the
implant that mean nothing. Walking, swimming, cycling and gentle gym work are all encouraged.