Skip to main content
OpenTrials
Completed

NCT Number: NCT06829849

Validity of the SHD-LESS Scale After ACL Reconstruction

After anterior cruciate ligament reconstruction (ACL-R), Single Hop for Distance (SHD) performance aids in decision-making, particularly for return-to-sport assessments. However, asymmetrical landing kinematics are common after ACL-R, even with symmetrical performances, and increase the risk of re-injury. To support clinical practice, several qualitative scales have been developed as valid and reliable tools for assessing landing quality. In 2022, Measson et al. adapted the Landing Error Scoring System for use during an SHD task (SHD-LESS scale) and demonstrated its reliability among healthy individuals.

The aim of this study is to test the validity of this scale after ACL-R by evaluating its ability to identify asymmetrical landing and characterize differences between the operated and uninjured limb. The second objective is to assess its association with knee muscle strength, functional status and psychological readiness.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

ACL Reconstruction ACL Injury Anterior Cruciate Ligament Injuries Knee Injuries Leg Injuries Wounds and Injuries

Age range

18 year–40 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Service de Médecine du sport, CHU Caen

Caen, France

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients aged 18-40, who have undergone a first ACL reconstruction more than 6 months ago and are being followed in a sports medicine care pathway
  • Affiliated with a health insurance plan
  • Information form: Non-objection to the use of data for research purposes

Exclusion criteria

  • Previous ligament surgery of the lower limbs prior to ACL reconstruction
  • Complex ligament injury (lateral ligaments, posterior cruciate ligament)
  • Recent muscle injuries
  • History of injury to the uninjured knee
  • Pregnant woman
  • Inability to perform a muscular assessment
  • Postoperative complications (deep vein thrombosis, sepsis, stiffness/arthrofibrosis)
  • Neurological history with residual effects or taking medication that affects balance/coordination

Treatment and study plan

Landing error assessment during a SHD task using the SHD-LESS scale

Diagnostic Test

Participants will perform a 2D-camera-recorded SHD task, with the SHD-LESS scored by two sports medicine physicians. Additional tests include isokinetic muscle testing, as well as functional and psychological status assessments, following standard clinical practice.

Primary outcomes

  1. Single Hop for Distance, Landing Error Scoring System (SHD-LESS) scale

    Time frame: One measurement during the visit at 6 to 12 months after surgery

    The LESS (Landing Error Scoring System) scale is a 13-item tool used to assess landing technique during a hop task.

Secondary outcomes

  1. Strength

    Time frame: One measurement during the visit at 6 to 12 months after surgery

    Measurement of knee extensors and flexors peak strength (in newton.meter, Nm) on isokinetic dynamometer

  2. ACL-RSI questionnaire (Anterior Cruciate Ligament-Return to Sport after Injury)

    Time frame: One measurement during the visit at 6 to 12 months after surgery

    The ACL-RSI measures the patient's understanding of his knee. It comprises 12 questions with a score of 1 to 10 for each

  3. International Knee Documentation Committee (IKDC) score

    Time frame: One measurement during the visit at 6 to 12 months after surgery

    Knee level of function based on patient-reported measures from symptoms to daily activities. The IKDC score includes sections on knee symptoms (7 items), function (2 items), and sports activities (2 items), with scores ranging from 0 (lowest function, highest symptoms) to 100 (highest function, lowest symptoms).

Sponsors and collaborators

Lead sponsor

University Hospital, Caen

Other

Registry information

Official study title

Validity of the SHD-LESS Scale in Detecting Landing Asymmetry and Its Association With Functional Status After ACL Reconstruction.

Acronym: ACL-LESS

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Feb 17, 2025
Registry last updated
Apr 1, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.