By Cory Calendine, MD · Updated September 27, 2026, Board-Certified Orthopedic Surgeon
Someone has probably already handed you the list. Don’t cross your legs, don’t sit in a low chair, sleep with a wedge between your knees. Hip replacement restrictions like these get passed around waiting rooms and family group texts as if they came down on stone tablets.
Here’s what I tell my patients at the Bone and Joint Institute of Tennessee: most of that list belongs to a different operation, and maybe a different decade. Stay with me, because at the end of this article I’ll tell you the real goal of hip replacement. Almost nobody says it out loud.
Where Do Hip Replacement Restrictions Come From?
That list exists for one reason: dislocation. Every rule on it is meant to keep a healing hip from popping out of its socket in the first weeks after surgery.
Whether they apply to you depends on how your surgeon got into the joint. The posterior approach reaches the hip through the muscles at the back. Those muscles and the capsule behind the joint need time to heal, and the classic hip replacement restrictions protect them while they do.
The anterior approach, which I use for almost all of my hip replacements, works between the muscles at the front of the hip. The muscles that hold your hip in place are never cut. There’s no six-week or twelve-week countdown to protect, so none of those requirements apply. Not one.
The Field Has Moved, Even for Posterior Hips
I’ll be fully transparent with you. Many posterior surgeons don’t use the strict version of these hip replacement restrictions anymore either. Larger femoral heads and careful capsule repair have made the hip more stable from the start, and several studies question whether the old rules change dislocation rates at all.
That doesn’t mean the rules are wrong for everyone. It means the list you follow should come from your own surgeon and your own operation, not from a photocopied handout written for someone else’s hip.
5 Hip Replacement Restriction Myths That Keep Patients Guarding a Healthy Hip
These are the five I hear most often in clinic. Each one has a grain of history behind it, and each one gets applied far beyond where it belongs.
Myth 1: You Can Never Cross Your Legs Again
After an anterior hip replacement, crossing your legs is fine. For a posterior hip, it’s a temporary rule while the back of the joint heals, not a life sentence.
Myth 2: Low Chairs, Couches, and Car Seats Are Off Limits
A low chair is fine. Sitting in your own kitchen chair, sinking into the couch, and climbing into the car are normal motions your new hip is built to handle. Guarding against them slows recovery without making it any safer.
Myth 3: You Have to Sleep With a Wedge or Pillow Between Your Knees
Sleeping without equipment strapped between your knees is totally fine after an anterior hip. Sleep in whatever position works for you. If you had a posterior hip, ask your surgeon how long they want the pillow used; for most, it’s a few weeks at most. I cover the details in sleep after hip replacement.
Myth 4: Bending Past 90 Degrees Will Dislocate the Hip
Bending to tie a shoe or pick something up off the floor is everyday life, not an extreme of motion. The 90-degree rule was written for posterior hips in the early healing window. It was never meant to describe how you live at six months or six years.
Myth 5: Hip Replacement Restrictions Last Forever
This is the one that bothers me most. Patients come to my Franklin clinic from Nashville, Brentwood, Columbia, and across Middle Tennessee still living carefully around a list they were given years ago. No restrictions long term is not a perk of the operation. It’s the point of it.
What Protects Your New Hip If Not the Rulebook?
If the list isn’t what keeps your hip in its socket, what does? Two things.
Your Muscles
Strong muscles hold the hip in place more than anything else. That’s why I tell every patient to come to surgery strong; the stronger you are walking in, the better you’ll do walking out. Walk, swim, ride a bike, whatever your body allows in the weeks before surgery. My free joint replacement guide covers how to build that reserve.
Common Sense in the First Couple of Weeks
The extremes of motion carry more risk than anything else while everything heals in. That’s the one rule I give my anterior hip patients, and I explain exactly what counts as an extreme in anterior hip replacement precautions. Everyday life is not an extreme of motion. Your new hip is built for it.
How Long Do Hip Replacement Restrictions Last?
It depends on which operation you had.
Anterior Approach
There is no clock to run out. You bear full weight the day of surgery, sit in a normal chair, and sleep in whatever position is comfortable. The only guidance is to avoid extremes of motion while things heal, and that fades into the background within a couple of weeks.
Posterior Approach
Traditional posterior hip replacement restrictions run about 6 to 8 weeks. The American Academy of Orthopaedic Surgeons notes most patients can do most of the “don’ts” after that window with no effect on the implant. Your own surgeon’s timeline is the one that counts.
What Should You Feel Years Later?
Ideally, nothing. Some people do feel the hip now and then: a little tendonitis around the outside of the hip, or an ache after a long day on your feet. That’s soft tissue, not the implant, and it usually settles. What matters is that function keeps improving.
The Real Goal: A Hip You Forget
Now, the part nobody says out loud. Once everything heals in, the goal of hip replacement is not a hip you protect. It’s a normal hip.
The Forgotten Hip
Surgeons call it the forgotten hip. Researchers measure it with a survey called the Forgotten Joint Score, which asks one simple thing: how often are you aware of your artificial joint in daily life?
How many people forget they ever had a hip replacement? In my practice, after more than 20 years and hundreds of anterior hips each year, it’s probably 70 to 80 percent of patients. That’s my clinical observation, not a study result, but it’s a consistent one. They quit thinking about the hip at all.
Regret Is Rare
Some people still notice the joint from time to time, but their function is dramatically better than it was before surgery. It is rare for me to hear anyone say they regret having their hip replaced. Far more often I hear the opposite: “I wish I’d done this five years ago.”
High-Impact Sports and the New Hip
Everyday life carries no lifelong restrictions; sports are a longer conversation. Golf, cycling, swimming, hiking, and doubles pickleball are all reasonable after a hip replacement. Repetitive pounding, like distance running, is where many surgeons still counsel caution because of implant wear over decades. I go through the evidence in pickleball after hip and knee replacement.
When Should You Call Your Surgeon?
“No restrictions” is not the same as “no attention.” A hip replacement is still a major operation. Call your surgeon about a new pop or shift in the hip with pain that feels wrong, a calf that is suddenly swollen or painful, a fever, or a wound that starts to drain.
And if you’re living carefully around a list someone handed you for an operation you didn’t have, call about that too. Ask your surgeon which rules actually apply to you. You might be guarding a hip that doesn’t need guarding.
The Bottom Line on Hip Replacement Restrictions
Hip replacement restrictions were written to prevent dislocation while a posterior hip heals. After the anterior approach, the muscles that stabilize the hip are never cut, so the list does not apply. After a posterior approach, the rules are temporary, and many surgeons have relaxed them.
Nobody has a hip replaced so they can spend the rest of their life avoiding low chairs. The goal is a normal hip, and for most of my patients, it becomes a hip they forget they have. If you’re still following a list years later, it’s time to ask whether that list was ever yours.
This content reflects Dr. Calendine’s independent clinical perspective and is not a substitute for advice from your own surgeon.
Medical Disclaimer: This article is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified orthopedic surgeon or healthcare provider about your specific condition, restrictions, and recovery plan. Individual results vary based on personal health circumstances.
By Cory Calendine, MD, Bone and Joint Institute of Tennessee, 3000 Edward Curd Lane, Franklin, TN 37067. (615) 791-2630.
Want Dr. Calendine’s articles to stand out in your Google and AI search results? Add him as a preferred source (one tap).
Watch: What Actually Protects a New Hip
In this video, Dr. Calendine walks through where the classic hip replacement restrictions came from, why they don’t apply after the anterior approach, and the two things that actually keep a new hip stable long term.
References
- Behrend H, Giesinger K, Giesinger JM, Kuster MS. The “forgotten joint” as the ultimate goal in joint arthroplasty: validation of a new patient-reported outcome measure. J Arthroplasty. 2012;27(3):430-436.e1. PubMed
- Crompton J, Osagie-Clouard L, Patel A. Do hip precautions after posterior-approach total hip arthroplasty affect dislocation rates? A systematic review of 7 studies with 6,900 patients. Acta Orthop. 2020;91(6):687-692. PubMed
- Tetreault MW, Akram F, Li J, et al. Are postoperative hip precautions necessary after primary total hip arthroplasty using a posterior approach? Preliminary results of a prospective randomized trial. J Arthroplasty. 2020;35(6S):S246-S251. PubMed
- Restrepo C, Mortazavi SM, Brothers J, Parvizi J, Rothman RH. Hip dislocation: are hip precautions necessary in anterior approaches? Clin Orthop Relat Res. 2011;469(2):417-422. PubMed
- Hamilton DF, Loth FL, Giesinger JM, et al. Validation of the English language Forgotten Joint Score-12 as an outcome measure for total hip and knee arthroplasty in a British population. Bone Joint J. 2017;99-B(2):218-224. PubMed
- Wang Z, Hou JZ, Wu CH, et al. A systematic review and meta-analysis of direct anterior approach versus posterior approach in total hip arthroplasty. J Orthop Surg Res. 2018;13(1):229. PubMed
