How To Prep For Knee Surgery | Calm, Ready, Strong

To prep for knee surgery, follow a 4-week plan: tune meds, train gently, prevent infection, arrange help, and set up home for safe recovery.

You want a smooth operation day and a steady recovery that starts the minute you wake up. This guide gives clear steps that match what orthopedic groups and surgical programs teach. It covers your timeline, training, gear, food, skin care, and home setup. Pick the pieces that fit your case and always follow your surgeon’s playbook.

Preparing your knee for surgery: a week-by-week plan

Most people do best with a simple timeline. Use the table as your master checklist, then read the sections that follow for the how-to details.

Timeframe	What To Do	Why It Helps
4–3 weeks out	Pre-op visit, lab tests, EKG if ordered; stop smoking or vaping; start daily walking and gentle quad sets; plan rides and help at home.	Clears risks, boosts lung and heart fitness, and lines up help.
2 weeks out	Target weight-bearing exercises, balance drills, and knee range; check meds and supplements; stock meals; move tripping hazards.	Builds strength and stamina; reduces last-minute stress.
7–3 days out	Hold NSAIDs and most herbals if your team told you to; treat any skin cuts; clean sheets and towels; confirm fasting and arrival times.	Lowers bleeding and infection risk; keeps the day predictable.
2–1 days out	Antibacterial showers as instructed; pack hospital bag; set up a safe sleeping spot at home.	Reduces surface germs; speeds your first steps after discharge.
Surgery day	Follow fasting rules; take only approved meds with sips of water; bring ID, list of meds, and imaging.	Keeps anesthesia safe and check-in quick.

Medical prep that sets you up for a better stay

Pre-op clearance and tests

Your team may order blood work, a chest X-ray, or an EKG. These tests check heart, lungs, and infection risk. If you have diabetes, bring recent A1C results and your meter. Some centers add a nasal swab for staph screening. If it’s positive, you may get a short course of ointment or washes before the date.

Many orthopedic programs follow guidance like the AAOS patient page on preparing for joint replacement, which explains pre-op testing, medication review, and skin care steps in plain language.

Medication review and timing

Bring a full list of prescriptions and supplements. Many teams pause ibuprofen, naproxen, aspirin, fish oil, garlic, ginseng, ginkgo, and similar items about a week beforehand. Blood thinners need a separate plan. Never stop a prescription without clear instructions from your surgeon or the prescriber.

On the morning of surgery, take only the meds you were told to take, with tiny sips of water. Bring inhalers and CPAP gear if you use them.

Quit smoking and cut alcohol

Stopping nicotine lowers wound problems and lung issues. Even two to four weeks helps. Keep alcohol light in the final week to avoid bleeding and sleep disruption.

Knee “prehab”: train the muscles you’ll lean on

Stronger legs and hips make walking aids easier to use and help the new joint track smoothly. Aim for short, daily sessions instead of a rare long workout. If a PT is available, ask for a pre-op visit to learn form.

Daily mini-circuit (10–15 minutes)

Heel slides: 10–15 reps each side.
Quad sets: Tighten thigh, hold 5 seconds; 10–15 reps.
Straight-leg raises: 8–12 reps with slow lowers.
Glute bridges: 8–12 reps.
Standing hip abduction: 10 reps each side.
Calf pumps: 20 reps to prime circulation.

Use pain as your guide. You should feel effort, not a sharp jab. Ice for 10 minutes after if the joint feels hot or puffy.

Skin, bathing, and infection prevention

Healthy skin is your first shield. In the week before surgery, avoid cuts, sunburns, or shaving near the knee. Many programs ask for special showers the day before and the morning of surgery using soap or a skin antiseptic. Do not shave the leg; the team handles hair removal if needed inside the operating room.

The CDC’s surgical site infection guideline notes that patients should bathe or shower before the date and follow local instructions on skin cleansers. Fresh sheets, clean towels, and loose clothes help after those showers. Skip lotions or powders on the leg the morning of your procedure unless told otherwise.

Food, hydration, and fasting rules

Balanced meals in the week before help energy and wound healing. Aim for lean protein, fruits, veggies, and fiber to keep bowels moving. Drink water regularly. Follow your center’s fasting plan. Many allow clear liquids up to two hours before arrival and light solids up to six to eight hours, but always follow your printed sheet.

Gear and home setup that make day one easier

Safety first

Clear pathways; coil or tape cords.
Remove throw rugs or use grip mats.
Place night lights from bed to bathroom.
Raise a favorite chair with firm cushions so knees are above 90 degrees when sitting.
Add grab bars or a sturdy rail near the shower and toilet.

Tools that help

Shower chair and handheld sprayer.
Toilet riser if your bathroom is low.
Reacher tool for socks and dropped items.
Ice packs or a cold-therapy cuff.
Slip-on shoes with backs and non-skid soles.
Two firm gel packs to rotate through the day.

What to pack for the hospital or center

Keep it light and simple. Use a small bag that leaves your hands free for crutches or a walker.

Item	Details	Pro Tip
Documents	ID, insurance card, list of meds, allergy card, and your surgeon’s instructions.	Snap photos of papers to your phone.
Clothing	Loose shorts or pants with wide leg openings; zip hoodie or button top.	Avoid tight waistbands or narrow cuffs.
Footwear	Backed, non-slip shoes or secure slippers.	No flip-flops.
Devices	Phone, charger, CPAP if used, hearing aids, labeled case.	Bring a long charging cable.
Comfort	Lip balm, dry shampoo sheet, simple toiletries.	Skip lotions on the operative leg.
Ice and pain plan	Cold packs, compression sleeve if advised.	Set a timer for 15–20 minute sessions.

Day-before and morning-of checklist

Day-before

Confirm your ride both ways and a helper for the first 24 hours.
Do the instructed shower. Use clean towel and clothes.
Eat a light dinner without heavy fat late at night.
Move your walker and cold packs near your landing spot at home.

Morning-of

Follow fasting rules. Take approved meds with small sips of water.
Leave jewelry and valuables at home.
Wear loose layers and bring your photo ID.
Arrive early to allow time for check-in and a final review with anesthesia.

Pain control, nausea, and blood clot prevention

Your team may use a mix of nerve blocks, spinal or general anesthesia, and scheduled oral meds. The goal is steady comfort so you can walk safely with therapy. Tell the nurse if you feel queasy; medication changes help many people. Expect calf pumps, ankle flexes, and early walking to lower clot risk. You may receive blood thinners for a short window based on your profile.

Eating, bowels, and sleep after the procedure

Start with clear liquids and simple foods. Add fiber and fluids through the first week. Many people need a gentle stool softener while on opioids. Plan a short daytime nap and a lights-out time that fits your pain pills. Ice before bed can ease the first hours of sleep.

Walking aids and first steps

A walker is the most stable early on. Move to a cane when your PT says the gait looks smooth and safe. At home, practice the “up with the good, down with the bad” rule on stairs unless told differently. Keep pets out of the path during the first days.

When to call your team

Call if you get fever that climbs, a calf that swells or feels warm, shortness of breath, chest pain, spreading redness at the incision, or drainage that soaks dressings. Reach out for new numbness in the foot or a fall.

Simple meal plan for the first week back

Energy matters when you’re healing. Prep easy, protein-forward meals before your date. Aim for 20–30 grams of protein per meal, plenty of fruit and greens, and water through the day. Here’s a quick starter plan.

Three low-effort ideas

Greek yogurt bowl with berries, chia, and honey.
Turkey and avocado wrap, baby carrots, and an apple.
Salmon, microwave brown rice, and a big salad.

Realistic milestones after you get home

First 48 hours

Short walks every hour while awake, ankle pumps, and frequent icing. Keep the leg elevated when resting. Review your pain pill schedule and set alarms so you don’t fall behind overnight.

Days 3–7

Build time on your feet, add gentle knee bends, and try a few porch or hall steps if cleared. Many people shower once the dressing is waterproof or the team says it’s safe.

Weeks 2–4

Goal is a smooth heel-to-toe gait with the cane and a knee bend that handles daily tasks like sitting and getting in a car. Keep icing after therapy to calm swelling.

Smart questions to ask at your pre-op visit

What meds do I stop and when? Which ones do I keep?
Do I need a nasal swab, special soap, or dental clearance?
What are my weight-bearing limits the first week?
How many nights will I stay? Who removes the dressing and when?
Who do I call for refills, wound questions, or therapy concerns?

Final prep snapshot

Set your plan on a single page: rides, meds to pause, shower timing, bag list, home setup, and first PT visit. Tape it near the door. Share it with your helper. When the day comes, you’ll walk in ready.