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Related Experiment Video

Updated: Jun 19, 2026

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
09:51

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

Published on: September 7, 2022

Experience curve compared with manufacturing processes for TKA.

Shameem A C Sampath1, Howard Davies, South Voon

  • 1Bluespot Knee Clinic, Lytham St Annes, Lancashire FY8 1PF, United Kingdom.

Orthopedics
|October 20, 2009
PubMed
Summary
This summary is machine-generated.

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The surgical team

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Surgical Navigation

Background:

  • The experience curve concept, originating from NASA, posits that production time decreases with cumulative production experience.
  • This principle has been applied to various manufacturing processes, establishing benchmark figures for efficiency gains.

Purpose of the Study:

  • To analyze the application of the NASA experience curve concept to navigated total knee arthroplasties (TKA).
  • To evaluate the efficiency and learning curve associated with performing navigated TKA for varus knees.

Main Methods:

  • The study analyzed the first 240 navigated total knee arthroplasties performed for varus knee alignment.
  • NASA's benchmark figures for manufacturing processes were utilized to establish an expected experience curve.

Related Experiment Videos

Last Updated: Jun 19, 2026

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
09:51

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

Published on: September 7, 2022

  • The actual surgical performance was compared against these benchmarks to determine the surgical team's experience curve.

    • Main Results:

    • The surgical team demonstrated an experience curve of 93% for navigated total knee arthroplasties.
    • This 93% curve is comparable to the 90% benchmark for manufacturing processes involving significant hand assembly and machining.
    • The results indicate a statistically significant learning curve (P < .001) in surgical time reduction with increasing case numbers.

    Conclusions:

    • The experience curve model is applicable to navigated total knee arthroplasty, demonstrating efficiency improvements with practice.
    • The findings suggest that the experience curve can serve as a valuable tool for comparing surgical teams and navigation systems.
    • This methodology may aid in optimizing resource allocation within orthopedic surgery departments.