Redesigning a joint replacement program using Lean Six Sigma in a Veterans Affairs hospital.

Area of Science:

• Healthcare Management
• Surgical Process Improvement
• Lean Six Sigma

Background:

• Total hip and knee replacements at a VA medical center incurred significant non-VA care costs ($1.4 million) and had a lengthy average stay (6.1 days).
• A Joint Replacement Program system redesign was initiated to enhance efficiency, reduce length of stay, and decrease non-VA care expenditures.

Purpose of the Study:

• To evaluate the effectiveness of Lean Six Sigma process improvement methodologies within a Veterans Affairs (VA) hospital setting.
• To determine the impact of the VA-TAMMCS model on surgical process efficiency and patient care costs.

Main Methods:

• The VA-TAMMCS (Vision-Analysis-Team-Aim-Map-Measure-Change-Sustain) model, a Lean Six Sigma approach, was implemented to redesign perioperative processes for joint replacement patients.
• A multidisciplinary team identified and eliminated waste in existing processes, focusing on improving efficiency and reducing costs.
• Data were collected over a 1-year baseline period and a subsequent 20-month sustainment period.

Main Results:

• Overall length of stay for total joint replacements decreased by 36%, from 5.3 days to 3.4 days (P < .001).
• Non-VA care costs were completely eliminated for total hip and knee replacement patients.
• An estimated annual return on investment of $1 million was achieved, with an increase in the volume of total joint replacements performed.

Conclusions:

• The VA-TAMMCS model proved effective for Lean and Six Sigma process improvement in a surgical setting.
• The initiative resulted in a sustained 36% reduction in length of stay and the elimination of non-VA care costs for joint replacements.
• The program successfully increased the volume of total joint replacements while enhancing operational efficiency and financial outcomes.