Hip resurfacing vs. total hip replacement: how the options differ

The words “bone preserving” can make resurfacing sound like the obvious choice. The actual decision is more complicated. Implant material, bone quality, anatomy, diagnosis, activity goals, and the surgeon’s experience all affect the balance of benefits and risks.

This guide is designed to help you compare the operations without turning population-level research into a personal prediction.

Hip resurfacing vs. total hip replacement at a glance

In a total hip replacement, the surgeon removes the damaged femoral head, places a stem in the femur, and replaces the socket surface. In resurfacing, the femoral head and neck remain in place; the head is shaped and covered with a metal cap, and the socket receives a metal cup. [1]

Who may be considered for hip resurfacing?

Resurfacing is usually discussed for advanced hip arthritis after reasonable non-surgical options no longer provide enough relief and symptoms meaningfully limit daily life. AAOS describes the strongest candidate pattern as younger age, a larger frame, and strong, healthy bone. It also stresses that resurfacing is unsuitable for many patients and requires a comprehensive orthopedic assessment. [1]

Those broad patterns are screening clues, not a candidacy formula. Your surgeon may consider:

• the diagnosis and extent of joint damage;
• the shape and size of the femoral head and socket;
• bone density and the condition of the femoral neck;
• kidney health, metal sensitivity, immune status, and medications such as high-dose corticosteroids;
• your activity goals and willingness to follow a long-term monitoring plan; and
• the surgeon’s experience with the exact implant and with other hip replacement options.

The FDA lists kidney problems, known metal allergy or sensitivity, immune suppression, high-dose corticosteroid use, and childbearing potential among important considerations for metal-on-metal resurfacing devices. The details must be discussed with the treating surgeon because devices and patient circumstances differ. [2]

Why preserve the femoral head?

Resurfacing removes less bone from the upper femur. That may leave more femoral bone available if another operation is needed later. The larger ball is also closer to the natural size of the femoral head, which may reduce dislocation risk in selected comparisons. Neither point guarantees an easier future revision or a particular activity level. Surgical approach, implant design and size, bone quality, and other factors influence the result. [1] [4]

HealthLink BC notes that any activity advantage remains uncertain and that implant size and patient selection matter. Ask the surgeon to explain the goal of resurfacing in your situation rather than relying on the phrase “more natural.” [3]

Metal-on-metal deserves a separate conversation

In established hip resurfacing systems, a metal cap moves against a metal socket. Friction can release small metal particles and ions. Some people can develop a reaction in nearby bone or soft tissue, with pain, swelling, implant loosening, or the need for revision. Metal ions can also enter the bloodstream, and individual reactions are difficult to predict. [1] [2]

This is a material difference from total hip replacements, which can use metal, plastic, or ceramic components. Ask for the exact manufacturer, model, bearing surfaces, and Canadian licensing status of any implant being proposed. Ask how the team monitors the device after surgery and which symptoms should prompt an earlier assessment. [1]

If you already have a metal-on-metal hip and develop new or worsening hip or groin pain, swelling, weakness, noise, or a change in walking, contact your treating clinician. The FDA advises ongoing surgeon follow-up, with the schedule adjusted to the implant and the patient’s findings. [2]

What comparative evidence can and cannot tell you

A 2026 systematic review and meta-analysis included 11 studies published from 2013 through 2021. Across the review, patient-reported outcomes, revision, survivorship, metal-ion results, and overall complications were broadly similar. The clearest comparative signal was a lower dislocation rate after resurfacing. [4]

That finding still needs context. The included groups were largely younger and predominantly male, study designs and follow-up varied, and most total-hip comparators used metal-on-metal or mixed bearings. The authors rated several outcomes as low-certainty and cautioned against applying pooled averages uniformly to every patient or modern implant. Even the dislocation finding was sensitive to differences in total-hip head size. [4]

For a consultation, the practical use of the evidence is to ask why the surgeon expects one option to fit your anatomy, health, and goals. A study average cannot decide whether you can return to a particular job or sport, how long an implant will last for you, or whether a revision would be straightforward.

A Canadian context for the decision

Canada’s joint-replacement evidence base includes the Canadian Joint Replacement Registry, which collects clinical, surgical, and prosthesis information on hip and knee replacements. Registry reporting helps describe national patterns and outcomes, but it does not replace an individual implant and candidacy discussion. [5]

Availability and surgeon experience with resurfacing can differ. Before arranging care, confirm the exact procedure and implant being offered, what follow-up is required, who will provide that follow-up if you live elsewhere, and how complications would be assessed. This article does not establish that resurfacing is available through Pathway or that a particular device is appropriate.

How Pathway’s hip podcast can help you prepare

In Pathway’s All Things Hip podcast, Dr. Sebastian Rodriguez-Elizalde and Dr. Thierry Pauyo explain the basic bone-preserving design of resurfacing, the larger femoral head, metal-ion concerns, and why arthritis is still required before the procedure is considered. Their discussion offers useful questions for a specialist visit. The clinical statements in this guide are independently cross-checked against professional guidance, public health information, and peer-reviewed research.

Questions to take to your appointment

• What diagnosis and imaging findings are driving the recommendation?
• Am I a reasonable candidate for both resurfacing and total hip replacement? If one is unsuitable, why?
• How do my bone quality and anatomy affect the choice?
• Which exact implant and bearing materials would you use?
• How often do you perform each operation, and what outcomes do you track?
• How do femoral neck fracture, dislocation, metal debris, infection, and revision risks compare for me?
• What activity limits would you advise in the first year and over the longer term?
• What follow-up, blood tests, or imaging would this implant require?
• If this implant fails, what would revision involve?
• Who will coordinate follow-up if I travel for surgery?

Ask the surgeon to connect the recommendation to your images and priorities in plain language. It is reasonable to take notes and request the implant details in writing.

References

1. American Academy of Orthopaedic Surgeons. Hip Resurfacing. Used for procedure descriptions, selection factors, potential benefits, and risks.
2. U.S. Food and Drug Administration. Metal-on-Metal Hip Implants: Information for Patients. Used for metal-related risks, selection considerations, and follow-up questions.
3. HealthLink BC. Hip Resurfacing Arthroplasty. Canadian patient guidance used for bone preservation, implant size, and uncertainty around activity advantages.
4. Demosthenous C, et al. Comparative Outcomes of Resurfacing vs Total Hip Arthroplasty: A Systematic Review and Meta-Analysis. Advances in Orthopedics. Published July 7, 2026. DOI: 10.1155/aort/4661645.
5. Canadian Institute for Health Information. Canadian Joint Replacement Registry. Used for the scope of Canadian hip and knee replacement data collection.

Sources accessed September 28, 2026. This article provides general education and does not determine which procedure is appropriate for you. Your treating clinician should guide individual decisions. See our editorial policy.