Clinical and Research Tools

Benefit-Risk Calculator for Total Knee Replacement  

The Benefit-Risk calculator for Total Knee Replacement estimates the chance of mortality and complications (30-day) after surgery, and compares these risks against the chance of the patient experiencing clinically meaningful improvements across 3 domains: Pain, Symptoms, and Activities of Daily Living.

Use the calculator

The Total Hip and Knee Arthroplasty Outcome Calculator  

The Total Hip and Knee Arthroplasty Outcome Calculator estimates the chance of specific outcomes (such as a complication or death) after surgery. The estimates are based upon information about the patient’s prior health history. The estimates are calculated from models developed and validated using data from a large number of patients who had a primary elective total knee or hip arthroplasty. More information about the development and accuracy of the models have been published here:

Harris AHS, Kuo AC, Weng Y, Trickey AW, Bowe T, Giori, NG (2019). Can Machine Learning Methods Produce Accurate and Easy to Use Prediction Models of 30-day Complications and Mortality  After Knee or Hip Arthroplasty. Clinical Orthopaedics & Related Research, 477(2), 452-460.

Use the calculator

The Total Hip and Knee Arthroplasty Outcome Calculator for patients within the Veterans Health Administration (“Outcome Calculator”)

The Total Hip and Knee Arthroplasty Outcome Calculator estimates the chance of specific outcomes of a large number of patients of the Veterans Health Administration (such as a complication or death) after surgery. The estimates are based upon information about the patient’s prior health history. The estimates are calculated from models developed and validated using data from a large number of patients who had a primary elective total knee or hip arthroplasty. More information about the development and accuracy of the models have been published here:

Harris AHS, Kuo A, Nordin D, Bowe T, Gupta S, Giori NG (2018). Prediction Models for 30-Day Mortality and Complications Following Total Knee and Hip Arthroplasty for Veteran Health Administration Patients with Osteoarthritis. Journal of Arthroplasty, 33(5), 1539-1545.

Use the VA calculator

Example data and R-code (under construction) for:

Harris, AHS, Hagedorn, H, Finlay, A (in review). Delta Studies: Expanding the Concept of Deviance Studies to Better Design Implementation and De-implementation Interventions.

Example Data
R-Code

American Society of Anesthesiology Calculator. A tool to estimate American Society of Anesthesiology - Physical status (ASA-PS) Classification.    

ASA Classification Calculator

Risk Calculator for Surgical Repair of Hip Fracture. A tool that estimates the chance of specific outcomes (such as a complication or death) for the 30 days after surgery.

 

Risk Calculator for Surgical Repair of Hip Fracture