Hip Replacement Medically reviewed by Thomas D. Ferro, M.D. in Lancaster, OH

Hip replacement in Lancaster, Ohio, guided by a 3D plan of your anatomy and completed as same-day surgery. For patients in Lancaster and across Fairfield County, from Pickerington and Canal Winchester to Baltimore and Carroll, NanoHip™ makes it possible to have a hip replaced and sleep at home that night. Well before surgery, our team turns your CT scan into a three-dimensional surgical plan. Your surgeon then uses a muscle-sparing technique, and spinal anesthesia with sedation takes the place of general anesthesia. Within hours, most people are walking on their new hip.

Hip Replacement Done Differently in Lancaster

Built on more than 5,400 hip replacements, NanoHip™ has helped patients routinely:

Walk within a few hours of their operation
Travel home around two hours after surgery
Rejoin the sports and pastimes they enjoy without restrictions

Your implant's dimensions, placement and alignment are all chosen on a 3D model of your hip, generated from your CT scan before your surgery date.

Understand how 3D surgical planning works →

Four Key Differences NanoHip™ vs. the Conventional Approach

These four differences are what set NanoHip™ apart from conventional hip replacement. They're also good questions to ask during any surgical consultation.

Mapped in 3D before you arrive

The process begins with your CT scan, which our biomedical engineers use to build a 3D model of your hip. That model is where your cup and stem sizes are chosen, their placement is set, and your leg length and offset are planned. Nothing moves forward until your surgeon has reviewed and approved it.[3]

Get to know the 3D planning process →

Spinal anesthesia, then home

Outpatient hip replacement is well supported. In a meta-analysis of 20 studies with more than 580,000 cases, complication and readmission rates were similar for outpatient and inpatient surgery.[6] Meanwhile, a national study of more than 380,000 joint replacements found that spinal anesthesia was associated with lower 30-day mortality and fewer complications than general anesthesia.[5] You'll be home in Lancaster the same day.

Minimally invasive, muscle-sparing access

NanoHip surgeons reach the joint through the spaces between muscles instead of dividing them. Because your 3D model shows your anatomy so clearly, your surgeon can tailor the minimally invasive approach to you rather than adopting one for promotional reasons.

Clinically proven implants

NanoHip™ relies on FDA-cleared implants with lengthy national registry records. What's personalized is your plan; the implant and its materials are proven performers.

NanoHip™ and Conventional Hip Replacement in Brief

	vs	Conventional hip replacement
How surgery is planned	On a 3D model of your CT scan, by biomedical engineers, with surgeon approval; implant size, cup and stem position, leg length and offset are set ahead of time	On 2D X-ray templates, frequently finalized in the operating room under time pressure
How the hip is accessed	A muscle-sparing technique adapted to you	Posterior or lateral access through or around the hip muscles
Anesthesia provided	Spinal anesthesia and sedation	General anesthesia, still the leading choice in the U.S.
Where recovery begins	At home, generally about two hours after surgery	In a hospital bed, often for one to three days
Rehabilitation	A home program from your surgeon, with formal therapy only if needed	Weeks of outpatient physical therapy

Your Lancaster Doctor

At NanoKnee, we've curated a team of top-tier surgeons, each recognized as leaders in joint replacement for their exceptional skill and expertise. Our specialists combine their vast experience with NanoKnee's groundbreaking approach to provide unparalleled care. With a focus on innovative, minimally invasive techniques, we deliver the most advanced treatments to ensure quicker recovery, lasting results, and an enhanced quality of life.

Kristopher Donald Collins, MD

A hip and knee replacement specialist and board-certified surgeon, Dr. Kristopher Collins, MD, is passionate about helping patients regain their mobility quickly and safely. He graduated from NYU L...

Learn More about Kristopher Donald Collins, MD

Meet our Surgeons

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Behind the Scenes of a NanoHip™ Procedure

Every NanoHip™ hip replacement begins as a 3D plan and ends as an outpatient procedure, so you're using your new hip on surgery day and recovering in your own surroundings. Our surgeons focus on patients who want to remain active, and that priority runs through each plan they create. Nationwide, instability is the most common reason for revising a hip replacement.[2]

For that reason, your biomedical engineers and surgeon complete and check your plan well in advance. Your cup and stem placement relative to your pelvis and femur, along with how your leg length and offset will be restored, is set on your 3D model, not estimated from a flat X-ray partway through surgery. That preparation helps your surgeon restore a stable, strong hip and lower the odds of an instability-related revision.

Signs You May Need a New Hip

Hip replacement is usually advised once arthritis disrupts everyday activities and conservative measures, such as activity changes, medication, physical therapy or injections, stop providing relief. Indicators that it may be time include:

Hip or groin pain that makes walking, climbing stairs or getting out of a chair a challenge
Pain that persists at rest or wakes you during the night
Stiffness that makes it hard to bend, such as when picking something up from the floor
Imaging that shows bone-on-bone wear or significant joint damage

Surgery Day, Step by Step

NanoHip™ surgery is performed as an outpatient procedure. Spinal anesthesia with sedation keeps you comfortable and unaware of the operation, without general anesthesia. Most procedures take 90 minutes to two hours.

Several hours later, your care team will guide you through your first walk, and most patients head home that day. Your new hip can bear full weight from the beginning.

Healing Well After Surgery

Most NanoHip™ patients resume their usual routines within one to two weeks and return to an active lifestyle in six to eight weeks, following a surgeon-designed home exercise program. In the published literature, the typical return to sport after hip replacement, moderate-impact sports included, comes at around five months.[8]

Resuming the Activities You Enjoy

NanoHip™ is built to help you return to an active life without restrictions. The evidence supports that goal: a review spanning 37 studies of standard hip replacement showed that people who played sports before their operation usually returned, and over 80% got back to the level they had before symptoms began.[8] Your NanoHip™ surgeon will explain what to expect as you heal and set a realistic plan for your return to the things you love, from a round of golf to the climb up Mount Pleasant in Rising Park.

Hip Replacement Frequently Asked Questions

How long do modern hip implants typically last?

Most last a very long time when they're placed correctly. The largest review of national registry and long-term case data showed that about 89% of hip replacements remained in place after 15 years, 70% after 20 years and 58% after 25 years.[1] NanoHip™ combines patient-specific positioning with modern implant designs in pursuit of a hip that lasts without activity restrictions, which is why your anatomy is mapped carefully before surgery.

Can surgical planning extend the life of my hip replacement?

Planning addresses the factors a surgical team controls, and those factors matter. In every NanoHip™ case, biomedical engineers use a CT-based 3D plan to size your cup and stem to your bone and to map their positions, your leg length and your offset, all before your surgeon gives final approval. The gains in accuracy are significant. In a study of 200 patients, CT-based 3D planning selected the correct stem size in 88% of cases compared with 69% using X-ray templating, and the correct cup size in 96% compared with 56%. Offset errors larger than 3 mm fell from 23% to 5% of patients, varus stem placement fell from 10% to 2%, and the 3D-planned group had no early fractures or subsidence while the X-ray group had three.[3] Alongside this proprietary 3D modeling, NanoHip™ uses FDA-cleared implants with long registry histories to fine-tune placement and limit soft tissue trauma.

What makes a patient a strong fit for NanoHip™?

The strongest fits are people who've been told they need a hip replacement and who want to recover at home, stay active, and have their implant planned around their own anatomy. NanoHip™ serves active patients of many ages who expect excellent function after surgery. Your NanoHip™ surgeon will confirm candidacy at your consultation and recommend the right next step.

What should I try before considering surgery?

Your surgeon may suggest non-surgical options first, such as adjusting your activities, losing weight if needed, physical therapy, anti-inflammatory medication, or corticosteroid injections. After reviewing your imaging and history, your NanoHip™ surgeon will recommend what makes sense for your condition. When arthritis has moved beyond what those treatments can address, hip replacement provides dependable long-term results.

Does NanoHip™ plan for leg length?

Yes. Your leg length and offset, which is how far your hip sits from your body's midline, are both planned on your 3D model before surgery, so your surgeon has a defined target for each. In one 200-patient comparison, CT-based 3D planning lowered offset errors above 3 mm from 23% of patients to 5%.[3]

How much muscle is disturbed during NanoHip™?

As little as possible. NanoHip™ is a minimally invasive hip replacement that reaches the joint by working between muscles rather than cutting through them, and randomized trials report an easier first few weeks with these muscle-sparing approaches.[7] For the long run, though, accurately restoring your anatomy is more important than incision size. A well-sized, well-placed implant governs how your hip performs for years, and those decisions are locked in during 3D planning.[3]

What kind of anesthesia will keep me comfortable?

NanoHip™ surgeons use spinal (regional) anesthesia combined with “twilight” sedation. You'll be comfortable and unaware during surgery, without general anesthesia. In a national analysis of more than 380,000 joint replacements, spinal anesthesia was associated with lower 30-day mortality and fewer complications than general anesthesia.[5] Your anesthesia team reserves general anesthesia for the uncommon cases where it's the better fit.

Does NanoHip™ require an overnight stay?

No. NanoHip™ is performed on an outpatient basis, and most patients leave about two hours after their procedure. Outpatient hip replacement has been widely studied, and a meta-analysis of 20 studies found complication rates no different from inpatient surgery, with the benefit of healing at home.[6] Your surgeon will make the same-day call with your safety in mind.

How long does the operation itself last?

Usually 90 minutes to two hours. Since your implant sizes, positions, leg length and offset have already been planned in 3D, your surgeon has fewer decisions to make on the clock, and comes prepared with insights from NanoKnee's proprietary 3D Blueprinting® plan, offered nowhere else.

When can I expect to feel recovered?

Most NanoHip™ patients walk within hours of surgery and handle light activities in the first week. Here's a typical progression:

7–14 days: normal daily activities
2–6 weeks: moderate-intensity activities
6–8 weeks: a fully active lifestyle without limits

Individual timelines can differ.

Is physical therapy part of the plan?

For most NanoHip™ patients, therapy takes the form of a home exercise program guided by their surgeon, and formal outpatient physical therapy is added only on your surgeon's recommendation. You'll walk on surgery day, and once your incision has healed, typically within two weeks, you'll move on to strengthening, cycling and low-impact activities like swimming. The NanoKnee app makes it easy to track progress and reach your care team.

What activities are possible after NanoHip™?

Most NanoHip™ patients get back to walking, cycling, golf, swimming, hiking, tennis, running and skiing without restrictions. A review of 37 studies involving 6,485 hip replacement patients found that more than 80% returned to their pre-symptom level of sport after an average of roughly five months, most often in low- and moderate-impact activities.[8]

Will I regain the flexibility I've lost?

Many patients do. Most recover the motion they need for daily life and sports, and many regain flexibility that arthritis had gradually taken. Your 3D plan places the cup and stem to restore your hip's center of rotation and offset, helping the joint stay stable as it moves. Progress continues throughout the first year, and our aim is to help every patient win back the mobility they've lost to arthritis and wear.

What does the incision look like after NanoHip™?

There's one incision, usually 4 to 6 inches long, closed with absorbable sutures and a cosmetic closure to minimize scarring. The skin typically heals within two weeks, and you'll continue protecting the area for several weeks after.

What risks are involved with NanoHip™?

Like any hip replacement, NanoHip™ carries risks such as infection, blood clots, dislocation, fracture, a leg length difference, nerve injury, implant loosening over time, and anesthesia complications. Several are directly targeted: spinal anesthesia is associated with fewer perioperative complications than general anesthesia,[5] and pre-operative 3D planning focuses on the component position, leg length and offset issues that underlie instability and loosening, the two leading causes of revision.[2][3] Your surgeon will discuss your individual risks and plan to minimize them.

How does hip replacement rate in terms of patient satisfaction?

Very well. In a study of 850 hip replacement patients, only 7% were dissatisfied one year after surgery,[4] and hip replacement is widely considered one of the most successful operations in medicine, with more than 4.4 million hip and knee replacements recorded by the American Joint Replacement Registry since 2012.[9] Serious complications are rare, and some risks can be lowered by decisions made in advance. A national analysis of more than 380,000 joint replacements associated spinal anesthesia with lower 30-day mortality and fewer in-hospital complications than general anesthesia.[5] NanoHip™ procedures are performed under spinal anesthesia with sedation by board-certified orthopedic surgeons, and our proprietary 3D modeling supports consistent implant placement and a muscle-sparing approach tailored to you.

Is hip replacement an option later in life?

Yes. Plenty of patients choose a new hip in their later decades and find it gives them back walks, travel and time with family. What determines eligibility is your health picture, not the number on your driver's license, and each NanoHip™ patient goes through a full evaluation first. NanoHip™'s standard use of spinal anesthesia is associated with fewer perioperative complications than general anesthesia.[5]

What will insurance pay for, and what won't it?

Medicare and most commercial plans pay for hip replacement surgery when it's medically necessary. They don't cover the pre-operative 3D planning and engineering, which may cost you up to $8,500 depending on your plan. Our patient navigators will review your coverage and out-of-pocket costs with you before you commit, and financing is available for uncovered amounts.

Do robots or artificial intelligence play a role in NanoHip™?

No robot is involved in your surgery; your surgeon performs it. AI plays a supporting role in planning only, helping our biomedical engineers create a 3D model from your CT scan, which your surgeon then reviews and approves. NanoHip™'s accuracy comes from that pre-operative preparation, not from technology in the operating room.

Sources

Evans JT, Evans JP, Walker RW, Blom AW, Whitehouse MR, Sayers A. How long does a hip replacement last? A systematic review and meta-analysis of case series and national registry reports with more than 15 years of follow-up. Lancet. 2019;393(10172):647-654. doi:10.1016/S0140-6736(18)31665-9
Bozic KJ, Kurtz SM, Lau E, Ong K, Vail TP, Berry DJ. The epidemiology of revision total hip arthroplasty in the United States. J Bone Joint Surg Am. 2009;91(1):128-133. doi:10.2106/JBJS.H.00155
Aubert T, Galanzino G, Gerard P, Le Strat V, Rigoulot G, Lhotellier L. Accuracy of preoperative 3D vs 2D digital templating for cementless total hip arthroplasty using a direct anterior approach. Arthroplasty Today. 2023;24:101260. doi:10.1016/j.artd.2023.101260
Anakwe RE, Jenkins PJ, Moran M. Predicting dissatisfaction after total hip arthroplasty: a study of 850 patients. J Arthroplasty. 2011;26(2):209-213.
Memtsoudis SG, Sun X, Chiu YL, Stundner O, Liu SS, Banerjee S, Mazumdar M, Sharrock NE. Perioperative comparative effectiveness of anesthetic technique in orthopedic patients. Anesthesiology. 2013;118(5):1046-1058. doi:10.1097/ALN.0b013e318286061d
Gong S, Yi Y, Wang R, Han L, Gong T, Wang Y, Shao W, Feng Y, Xu W. Outpatient total knee and hip arthroplasty present comparable and even better clinical outcomes than inpatient operation. Front Surg. 2022;9:833275. doi:10.3389/fsurg.2022.833275
Ramadanov N, Bueschges S, Lazaru P, Dimitrov D. A meta-analysis on RCTs of direct anterior and conventional approaches in total hip arthroplasty. Sci Rep. 2021;11:20991. doi:10.1038/s41598-021-00405-4
Hoorntje A, Janssen KY, Bolder SBT, et al. The effect of total hip arthroplasty on sports and work participation: a systematic review and meta-analysis. Sports Med. 2018;48(7):1695-1726. doi:10.1007/s40279-018-0924-2
American Academy of Orthopaedic Surgeons. American Joint Replacement Registry (AJRR): 2025 Annual Report. Rosemont, IL: AAOS; 2025.
Chua MJ, Hart AJ, Mittal R, Harris IA, Xuan W, Naylor JM. Early mobilisation after total hip or knee arthroplasty: a multicentre prospective observational study. PLoS One. 2017;12(6):e0179820. doi:10.1371/journal.pone.0179820