A tibial plateau fracture is a break in the top of the shinbone, right where it forms the knee joint.
Recovery is SLOOOOOOOOOOOOOOW. Most people spend about 6 to 12 weeks putting little or no weight through the leg, and it often takes around a year before the knee is as good as it’s going to get.
Two things matter most in the first months: protecting the joint surface while the bone heals, and keeping the knee BENDING. A knee that stiffens early is hard to win back.
Whether you need surgery, and when you can put weight on the leg, is your surgeon’s call. It depends on how the bone broke and how it was fixed. Follow your surgeon’s protocol over any timeline here, including this one.
Surgery or no surgery?
- No surgery: for breaks where the pieces haven’t moved much and the joint surface is still level. You wear a hinged knee brace and keep weight off the leg while it heals, with X-rays to check nothing shifts
- Surgery: when the joint surface has a step or a dip, the pieces have moved apart, or the knee is unstable. The surgeon lifts the joint surface back into line and holds it with plates and screws, sometimes with bone graft to fill the space underneath
- Why the surface matters: the top of the shinbone carries your weight every step. If it heals out of line, the knee can feel unstable and wear out sooner
- Sometimes it’s done in stages: after a high-energy injury with a lot of swelling, the surgeon may hold the leg in a temporary frame first and do the main operation once the skin has settled
- Your general health counts too: for some people with other medical problems, surgery offers limited benefit and a brace is the better choice. That’s a decision to make with your surgeon
Recovery timeline after surgery
- Weeks 0 to 2: hinged brace, crutches or a frame, and the leg raised as much as possible. Little or no weight through the leg. In many protocols, gentle knee bending starts in the first days. Your team will talk to you about preventing blood clots
- Around week 2: wound check, and stitches or clips out
- Weeks 2 to 6: working toward about 90 degrees of bend, a right angle, by around 6 weeks. Thigh and hip muscle exercises. Still little or no weight. See weight bearing after surgery for what each level means
- Weeks 6 to 12: weight is usually increased step by step, often after an X-ray shows healing. Full weight often comes around 3 months, sometimes later
- Months 3 to 6: weaning off crutches, rebuilding strength and balance, and working on a normal walk. Stationary bike and pool work help
- Months 6 to 12: most of the strength and confidence comes back in this window. Running and sport, if your surgeon clears them, usually not before 6 months
Why so long off the leg?
- The joint surface sits on broken bone. Standing on it too early can push the fragments back down before they’ve healed
- You’ll feel ready before the bone is. Many people feel fine at 4 or 5 weeks and are tempted to walk on it. Less pain doesn’t mean the bone can take your weight
- It isn’t rest. You can and should move the knee, work the thigh and hip muscles, and keep your arms and other leg strong for the crutches
- It can run past 3 months. The American Academy of Orthopaedic Surgeons notes that full weight bearing may need 3 months or more of healing
Keep weight off the bone. Never keep the bend out of the knee.
Getting the knee to bend
- Start when you’re allowed, and do it often: several short sessions a day beat one long one
- Heel slides: lying on your back, slide your heel toward your bottom, hold for a few seconds, then slide it back
- Keep it straight too: a knee that won’t fully straighten makes walking hard work. Don’t rest with a pillow under the knee
- Control the swelling: leg up, ice wrapped in a towel, and ankle pumps. A less swollen knee bends more easily
- Some units use a machine that bends the knee for you in the early days. It helps, but your own exercises matter more
- Speak up if it stalls: stiffness is much easier to treat in the first couple of months than later
Arthritis later
- The risk is real: a break through the joint surface raises the chance of arthritis in that knee later, even after a good repair
- In numbers: in one large long-term follow-up, about 1 in 20 people went on to need a knee replacement over roughly 14 years, around three times the rate in people without the fracture. Most never needed one
- It’s more likely after more severe breaks, if the joint surface heals out of line, if the knee stays unstable, or if the meniscus or ligaments were damaged too
- What helps: strong thigh muscles, a healthy weight and staying active. See knee arthritis for what to do if it develops
Go to the emergency department if
- Pain in the leg is severe and keeps getting worse, far more than you’d expect, especially when the toes or foot are moved. This can be compartment syndrome, a dangerous build-up of pressure in the leg muscles
- Your foot or toes go numb, pale, cold or blue
- You have sudden pain or swelling in your calf or thigh
- You have chest pain or sudden shortness of breath
Call your surgeon today if
- The wound is red, hot, swollen, spreading or leaking
- You have a fever or chills, or feel unwell
- You fall, or put full weight on the leg by accident, and now have new pain
Mention it at your next review if
- The knee bends well short of 90 degrees at around 6 weeks
- The knee won’t fully straighten
- The knee feels like it gives way once you’re walking on it
- A plate or screw rubs or aches under the skin
Weight waits for the bone. Bend can’t wait for anything.