NCT05789095

Brief Summary

Osgood-Schlatter is a growth-related condition involving multiple different types of tissue in the tendon-bone interface at the tibial tubercle. Osgood-Schlatter affects one in ten adolescents causing persistent pain and reduced ability to maintain physical activities. Changes in rate of torque development is associated with decreased neuromuscular functioning and pain chronicity, thereby affecting athletic performances and general physical activities. However, changes in rate of torque development has not been investigate in patients with Osgood-Schlatter and could help characterize the condition and guide management. The aim of the study is to investigate early and peak rate of torque development during maximal voluntary isometric knee extension and knee flexion in adolescents with Osgood-Schlatter, compared to a matched group of asymptomatic adolescents (controls), in a cross-sectional study. The study will include 13 adolescent participants with Osgood-Schlatter and a group of 13 pain free controls matched on sex, age, and sports participation on the group level. Testing will include rate of torque measurements of knee extension and flexion for each limb with a fixated handheld dynamometer during a single test-session lasting approximately two hours. The examiner responsible for strength-testing will be blinded to case-status. Along with anthropometric data, participants will perform the anterior knee pain provocation test to assess pain-response to sustained knee loading, a countermovement jump test to assess power and jump height, and provide patient-reported measures of condition severity, pain, disability, and quality of life. Data collection will start March 2023 and is expected to finish by May 2023.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
26

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Feb 2023

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 23, 2023

Completed
5 days until next milestone

Study Start

First participant enrolled

February 28, 2023

Completed
29 days until next milestone

First Posted

Study publicly available on registry

March 29, 2023

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2023

Completed
Last Updated

January 9, 2024

Status Verified

January 1, 2024

Enrollment Period

2 months

First QC Date

February 23, 2023

Last Update Submit

January 8, 2024

Conditions

Keywords

AdolescentsRate of torque developmentOsgood-SchlatterNeuromuscularInhibition

Outcome Measures

Primary Outcomes (7)

  • Rate of torque development (Nm/s/kg) at 0-200 ms during maximal isometric knee extension

    Test performed seated on an examination bed with a belt-fixated handheld dynamometer (MicroFet 2, Hoggan Scientific, USA) at 60 degrees of knee flexion during a 5 second maximal exertion.

    Day 1

  • Rate of torque development (Nm/s/kg) at 0-100 ms during maximal isometric knee extension

    Test performed seated on an examination bed with a belt-fixated handheld dynamometer (MicroFet 2, Hoggan Scientific, USA) at 60 degrees of knee flexion during a 5 second maximal exertion.

    Day 1

  • Peak rate of torque development (Nm/s/kg) during maximal isometric knee extension

    Test performed seated on an examination bed with a belt-fixated handheld dynamometer (MicroFet 2, Hoggan Scientific, USA) at 60 degrees of knee flexion during a 5 second maximal exertion.

    Day 1

  • Time to peak force, during maximal isometric knee extension

    Test performed seated on an examination bed with a belt-fixated handheld dynamometer (MicroFet 2, Hoggan Scientific, USA) at 60 degrees of knee flexion during a 5 second maximal exertion.

    Day 1

  • Rate of torque development (Nm/s/kg) at 0-200 ms during maximal isometric knee flexion

    Test performed seated on an examination bed with a belt-fixated handheld dynamometer (MicroFet 2, Hoggan Scientific, USA) at 20 degrees of knee flexion during a 5 second maximal exertion.

    Day 1

  • Rate of torque development (Nm/s/kg) at 0-100 ms during maximal isometric knee flexion

    Test performed seated on an examination bed with a belt-fixated handheld dynamometer (MicroFet 2, Hoggan Scientific, USA) at 20 degrees of knee flexion during a 5 second maximal exertion.

    Day 1

  • Peak rate of torque development (Nm/s/kg) during maximal isometric knee flexion

    Test performed seated on an examination bed with a belt-fixated handheld dynamometer (MicroFet 2, Hoggan Scientific, USA) at 20 degrees of knee flexion during a 5 second maximal exertion.

    Day 1

Secondary Outcomes (1)

  • Pain during strength testing (NRS 10)

    Day 1

Other Outcomes (12)

  • Knee osteoarthritis Outcome Score for children (KOOS Child)

    Day 1

  • The Tampa Scale 17 (TSK-17)

    Day 1

  • Duration of pain

    Day 1

  • +9 more other outcomes

Study Arms (2)

Case-group

13 adolescents, 9-16 years, with Osgood-Schlatter Disease.

Other: Rate of torque development testing of knee flexors and knee extensors using a fixated handheld dynamometer (MicroFet 2, Hoggan, Scientific L.L.C., Salt Lake City, USA), sampling rate of 100hz)

Control-group

13 healthy adolescents, 9-16 years, without any knee pain, matched on age, sex and type of sport on the group-level.

Other: Rate of torque development testing of knee flexors and knee extensors using a fixated handheld dynamometer (MicroFet 2, Hoggan, Scientific L.L.C., Salt Lake City, USA), sampling rate of 100hz)

Interventions

Participants and their parents/guardian receives information about the test procedures. Written informed consent is obtained before clinical examination and testing. Clinical testing is performed, anthropometric values are obtained and patient reported outcome measure is filled out, before the tests are performed. Cases will receive treatment for their condition and controls a movie ticket as compensation.

Case-groupControl-group

Eligibility Criteria

Age9 Years - 16 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

Adolescents aged 9-16 residing in the uptake area of Copenhagen University Hospital, Amager-Hviodvre (1.8m total residents), who is made aware of the study be either 1) being referred to the orthopedic department for Osgood-Schlatter, 2) sees adverts and local sports clubs, or 3) sees the online advert on the research unit webpage

You may qualify if:

  • Patients must be 9-16 years of age
  • Presence of pain for 12 weeks or more
  • Pain at tibial tubercle during loading activities
  • Palpable pain at the tibial tuberosity

You may not qualify if:

  • Previous knee or hip surgery
  • Other main diagnose of anterior knee pain (patellofemoral pain, Sinding-Larsen Johansson disease, Jumpers knee, etc.)
  • Hip and/or back pain interfering with activities of daily living or physical activities
  • Suspicion of other main diagnose such as meniscal tears and or ligamental tears
  • Unable to communicate verbally or orally in Danish

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hvidovre Hospital

Hvidovre, 2610, Denmark

Location

MeSH Terms

Conditions

OsteochondrosisInhibition, Psychological

Condition Hierarchy (Ancestors)

Bone DiseasesMusculoskeletal DiseasesBehavior

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Sensior Research Coordinator, PhD Fellow

Study Record Dates

First Submitted

February 23, 2023

First Posted

March 29, 2023

Study Start

February 28, 2023

Primary Completion

April 30, 2023

Study Completion

April 30, 2023

Last Updated

January 9, 2024

Record last verified: 2024-01

Data Sharing

IPD Sharing
Will share

The dataset will be published either along the primary peer-reviewed journal publication if this will be available, otherwise to a public repository with a permanent Digital Object Identifier (DOI), for example, zenodo, figshare or similar.

Shared Documents
STUDY PROTOCOL
Time Frame
The study protocol wil be uploaded to this registration once the study has been given an identifier from ClinicalTrials.gov
Access Criteria
No restrictions, but collaborators are required to adhere to the CC-BY-NC-ND 4.0 Licensing: Anyone can share this material, provided it remains unaltered in any way, this is not done for commercial purposes, and the original authors are credited and cited.

Locations