Skip to main content
Hospital for Special Surgery Logo
phone 1.212.606.1000
Make an Appointment
1.212.606.1000 Make an Appointment

Reliability Comparisons for Knee Replacement

Getting reliability data about the hospitals you’re considering for your care can help you choose better and avoid unnecessary risks.

Make sure you're asking the critical questions to make the best decision for your care

Not all hospitals achieve the same results

Knee replacement is a surgery focused on reducing pain and getting you back to the activities you love. But not all hospitals achieve the same results. Some are more reliable than others. With the help of the HSS Hospital Reliability Scorecard, you can make sure you're asking the critical questions to find the hospital that's right for you. Understanding the data points below will help you make the best decision for your care. Learn why we chose these factors.

Knee Replacement Overview

What

Surgical procedure in which damaged cartilage in the knee is replaced by a metal implant. Also called “knee arthroplasty.”

Where

Takes place in a hospital or ambulatory surgery center.

Length of hospital stay

Ranges from less than one day to several days, depending on the complexity of the procedure and your overall health.

patient testimonial image

David — New York, NY

"After just 10 weeks, I am back to work and navigating stairs, driving, sitting and standing with no pain and no complications."

flag icon Success Rate

95%

Of HSS patients reported improvement within 12 months

Out of 121 responses, 76% response rate. Represents unilateral knee replacement.

Source: HSS Internal Data, 2022

star icon Patient Experience

90%

Of patients would recommend HSS; over the national average of 70%

Source: CMS Care Compare, Feb 2025 Release.

plus icon Complications

2.8%

Complications within 90 days of surgery

3.5%

National Rate

Represents total hip/knee replacement care. 
Lower is better.

Source: CMS Care Compare, July 2020 – March 2023.
For inpatient procedures.

quote icon Testimonial

Bruce, HSS Patient

It has been a year since my knee replacements, and I am riding the bike regularly, enjoying walks, and back on the tennis court.

Bruce, Knee Replacement

shield icon Avoidable Hospital Visits

2.9%

HSS Readmissions

4.5%

National Rate

Represents total hip/knee replacement care. 
Lower is better.

Source: CMS Care Compare, July 2020 – June 2023.
For inpatient procedures.

triangle icon Procedure Volume

3,401

Knee replacements per year

Source: NYSDOH SPARCS 2022 Public Use File, APR DRG 326 Elective Knee Joint Replacement.

Endorsements

How much do endorsements from third parties really matter? The answer all depends on who’s doing the endorsing. Several groups of independent experts have dug deeper and found U.S. News & World Report to be the most credible of the various hospital rating systems.

US News Badge

Download your Hospital Reliability Scorecard

The Hospital Reliability Scorecard highlights valuable data to consider before you schedule your procedure. Our helpful worksheet makes it easy to compare different hospitals.

Reliable care is good for your health.

Ready to speak with an HSS specialist? Book online or call us directly at 877.606.1555.