Related Experiment Video
Updated: Jun 24, 2025
04:00
Author Spotlight: Assessing Surgical Frailty with Point-of-Care Ultrasound of Quadriceps Muscles
Published on: July 26, 2024
514
Identifying unstable ramp lesions using ultrasonography.
Tomoyuki Kanayama1, Junsuke Nakase2, Yoshihiro Ishida1
1Department of Orthopedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-Machi, Kanazawa City, 920-8641, Japan.
Journal of Medical Ultrasonics (2001)
|June 6, 2024
Summary
Ultrasound effectively detects unstable ramp lesions in anterior cruciate ligament (ACL) injuries. Stable lesions were harder to visualize, highlighting US utility for specific ACL complications.
Area of Science:
- Orthopedic surgery
- Diagnostic imaging
Background:
- Ramp lesions, often suspected via MRI or US, can heal without instability.
- Intraoperative arthroscopy is the gold standard for assessing ramp lesion stability.
Purpose of the Study:
- To evaluate the efficacy of ultrasound (US) in diagnosing ramp lesions preoperatively and intraoperatively.
- To assess the detection rate and reliability of US for ramp lesions.
Main Methods:
- Eighty-two knees undergoing anterior cruciate ligament (ACL) reconstruction were analyzed.
- Ultrasound detection rates at initial and preoperative visits were compared to arthroscopic findings.
- Test-retest reliability was assessed using intraclass correlation coefficient.
Main Results:
- Ultrasound identified ramp lesions in 90.0% of cases initially; 22.2% were poorly delineated preoperatively.
- Unstable ramp lesions were successfully delineated by US during surgery.
- Stable ramp lesions proved difficult to visualize with US.
Conclusions:
- Ultrasound can detect unstable ramp lesions associated with ACL injuries.
- US utility is higher for unstable ramp lesions compared to stable ones.
