Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Video

Updated: Jun 16, 2026

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Published on: November 23, 2019

Rotational Subluxation Patterns on Stress Radiography and Clinical Relevance in PCL-Deficient Knees: A 2D-3D

Younghoon Yang¹, Young Tak Cho¹, Jang Whan Bai¹

¹Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.

Orthopaedic Journal of Sports Medicine

|June 15, 2026

Summary

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same authorSame journal

Structural Gains Without Symptomatic Benefit After Microfracture During High Tibial Osteotomy.

Orthopaedic journal of sports medicine·2026

Same author

3D bioprinting of functional meniscus constructs with anisotropic properties using meniscus-derived bioink for knee meniscus regeneration.

Biofabrication·2026

Same author

The mid-term outcomes on reverse total shoulder arthroplasty with isolated latissimus dorsi transfer in patients with isolated external rotation lag without pseudoparalysis: an average follow-up of 5 years.

Journal of orthopaedic surgery and research·2026

Same author

Increased Graft Diameter and Quadrupled Versus Tripled Hamstring Tendon Autograft Are Associated With Improved Graft Survival in Double-Bundle Anterior Cruciate Ligament Reconstruction.

Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association·2026

Same author

A machine learning approach to using ultrasound for body composition and nutritional status assessment in newborns: a pilot study protocol.

Pilot and feasibility studies·2026

Same author

Short Femoral In-Tunnel Graft Length Does Not Compromise Graft Healing and Clinical Outcomes After Combined Anterior Cruciate Ligament and Anterolateral Ligament Reconstruction Using Hamstring Autograft.

The American journal of sports medicine·2026

Posteromedial tibial subluxation is more common in posterior cruciate ligament (PCL) deficiency. The dial test indicates posterior laxity but isn't specific to posterolateral injuries, cautioning against overtreatment.

Area of Science:

Orthopedic surgery
Knee biomechanics
Ligamentous injuries

Background:

Posterior cruciate ligament (PCL) deficiency often presents with distinct tibial subluxation patterns, including posteromedial and posterolateral subluxation.
PCL injuries are frequently linked to posterolateral rotatory instability, yet diagnosing concomitant posterolateral corner (PLC) injuries is challenging due to limitations in MRI detection and reliance on clinical tests like the dial test.

Purpose of the Study:

To evaluate rotational subluxation patterns in PCL-deficient knees.
To identify factors associated with a positive dial test.
To test the hypothesis that posterolateral subluxation is more prevalent and severe in PLC injuries and that the dial test correlates with this pattern.

Main Methods:

Retrospective review of 127 patients undergoing primary PCL reconstruction.

Keywords:

2D-3D registration PCL deficiency Telos stress radiography dial test posterior cruciate ligament posterolateral corner posterolateral rotatory instability rotational laxity

More Related Videos

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis

Published on: September 2, 2025

Related Experiment Videos

Last Updated: Jun 16, 2026

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Published on: November 23, 2019

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis

Published on: September 2, 2025

Utilized 3D CT models registered to stress radiographs to assess posterior tibial translation (PTT) and side-to-side difference (STSD).

Classified rotational subluxation patterns and analyzed clinical outcomes, PLC involvement, and factors associated with the dial test using logistic regression.

Main Results:

Posteromedial subluxation (73.2%) was significantly more prevalent than posterolateral laxity (26.8%) in PCL deficiency.
Rotational laxity was greater in the posteromedial subluxation group.
A positive dial test was associated with posterior laxity (PTT/STSD and 3D model PTT) but not specifically with posterolateral subluxation.

Conclusions:

The posteromedial subluxation pattern is markedly more common than the posterolateral pattern in PCL deficiency.
The dial test correlates with posterior laxity but lacks specificity for posterolateral subluxation.
Relying solely on rotational assessments for surgical decisions in PCL deficiency may lead to overtreatment, particularly in cases of dominant posteromedial subluxation.