Related Experiment Video
Updated: Dec 23, 2025

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
3.4K
Techniques for Femoral Socket Creation in ACL Reconstruction
Graeme Matthewson1, Peter Macdonald
1Pan Am Clinic Foundation, University of Manitoba, Winnipeg, MB, Canada.
Sports Medicine and Arthroscopy Review
|April 30, 2020
Summary
Anterior cruciate ligament (ACL) reconstruction outcomes depend on femoral tunnel placement. This review compares transtibial, anteromedial portal, and outside-in techniques to optimize surgical results for athletes.
Area of Science:
- Orthopedic Surgery
- Sports Medicine
- Biomechanics
Background:
- Anterior cruciate ligament (ACL) injuries are prevalent, particularly in athletes.
- ACL reconstruction is the standard treatment for knee instability.
- Femoral tunnel placement is critical for successful ACL reconstruction outcomes.
Purpose of the Study:
- To compare three femoral tunnel drilling techniques for ACL reconstruction.
- To analyze the advantages and disadvantages of each technique.
- To review clinical outcomes associated with different femoral tunnel placements.
Main Methods:
- Literature review of relevant studies on ACL reconstruction techniques.
- Comparison of transtibial, anteromedial portal, and outside-in femoral tunnel drilling methods.
- Analysis of technical errors, particularly nonanatomic tunnel placement.
Main Results:
- Transtibial technique can lead to proximal and nonanatomic femoral tunnel placement.
- Anteromedial portal and outside-in techniques facilitate more anatomic tunnel placement.
- Tunnel placement significantly impacts clinical outcomes and graft stability.
Conclusions:
- Anatomic femoral tunnel placement is crucial for optimal ACL reconstruction results.
- Anteromedial portal and outside-in techniques offer advantages over traditional transtibial methods.
- Further research is needed to fully elucidate the clinical differences and long-term outcomes.

