Use of a Modified Rep Model in Primary Joint Arthroplasty: Lessons Learned

Area of Science:

• Orthopedics
• Surgical Innovation
• Healthcare Management

Background:

• Orthopedic implant device sales representatives (reps) traditionally provide intraoperative guidance.
• Experienced high-volume arthroplasty surgeons may not require a rep for all primary total knee arthroplasty (TKA) procedures.

Purpose of the Study:

• To describe the authors' experience with a modified rep model for primary TKA.
• To evaluate the safety, efficiency, and cost-effectiveness of this modified model.

Main Methods:

• A retrospective comparison of 100 primary TKAs using a modified rep model versus 100 TKAs with a conventional model.
• Implementation of improved operating room staff education and surgical tray reengineering.

Main Results:

• No significant difference in perioperative complications (readmission, fracture, infection) or length of stay between groups.
• Reduced operating room time (102.1 vs 117.8 min) and instrument turnover time (OR and sterilization) with the modified model.
• Approximately $2000 cost saving per case with the modified rep model.

Conclusions:

• The modified rep model for primary TKA is a safe and viable alternative.
• This model offers substantial operating room efficiencies and significant cost savings.
• Potential for broader adoption in high-volume arthroplasty settings.