noRmativE ValuEs for Achilles tendons on uLtrasound examination

Obtaining reference values of Achilles tendon structure and calf muscle strength-endurance

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON24725

Enrollment

800

Registered

2020-10-26

Start date

2020-10-12

Completion date

Unknown

Last updated

2024-02-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None

Interventions

None

Eligibility

Inclusion criteria

Inclusion criteria: 1. Age = 18 2. No current localized Achilles tendon pain or stiffness 3. No localized visible fusiform thickening of the Achilles tendon 4. No medical history of pain or stiffness of the Achilles tendon region 5. Full score on the adapted VISA-A questionnaire (question 1 – question 5)

Exclusion criteria

Exclusion criteria: 1. Achilles tendon or ankle surgery in the past 2. Known systemic inflammatory disorders or internal diseases that can cause Achilles tendon pain (e.g. Spondylarthropathy, Psoriatic Arthritis or Familial Hypercholesterolaemia) 3. Recent (past 12 months) lower-limb injury requiring immobilisation 4. No written consent provided

Design outcomes

Primary

Measure	Time frame
The primary aim of this research project is to obtain reference values of the Achilles tendon structure (echo types I, II, III and IV) using the UTC procedure in adults without (previous) Achilles tendinopathy.	—

Secondary

Measure	Time frame
1. To obtain reference values of the Achilles tendon geometry (maximum anterior-posterior distance, maximum medio-lateral width, maximum cross-sectional area and tendon volume) using the UTC procedure in adults without (previous) Achilles tendinopathy. 2. To obtain reference values for the maximum calf muscle strength endurance (total vertical displacement, vertical height loss, Power and Work) in adults without (previous) Achilles tendinopathy. 3. To correlate tendon structure with calf muscle strength endurance. Additional collected parameters - Anthropometric Characteristics (age, gender, height, mass and Body Mass Index; BMI) - Past medical history (presence of comorbidities; heterozygous hypercholesteroleamia and diabetes) - Medication use that can influence tendon health (past or current use of fluoroquinolones and statins) - Smoking (current or past smoking and pack years) - Current and past physical activity using a 6-point Likert scale and the Sports Activity Rating Scale (SARS) - Amount of pain on Achilles tendon palpation (VAS 0-10) - Arc sign (present/absent) - Amount of Achilles tendon pain during HRET (VAS 0-10)	—

Measure

Time frame

1. To obtain reference values of the Achilles tendon geometry (maximum anterior-posterior distance, maximum medio-lateral width, maximum cross-sectional area and tendon volume) using the UTC procedure in adults without (previous) Achilles tendinopathy. 2. To obtain reference values for the maximum calf muscle strength endurance (total vertical displacement, vertical height loss, Power and Work) in adults without (previous) Achilles tendinopathy. 3. To correlate tendon structure with calf muscle strength endurance. Additional collected parameters - Anthropometric Characteristics (age, gender, height, mass and Body Mass Index; BMI) - Past medical history (presence of comorbidities; heterozygous hypercholesteroleamia and diabetes) - Medication use that can influence tendon health (past or current use of fluoroquinolones and statins) - Smoking (current or past smoking and pack years) - Current and past physical activity using a 6-point Likert scale and the Sports Activity Rating Scale (SARS) - Amount of pain on Achilles tendon palpation (VAS 0-10) - Arc sign (present/absent) - Amount of Achilles tendon pain during HRET (VAS 0-10)

—

Contacts

Public ContactTjerk Sleeswijk Visser

Erasmus MC, Rotterdam

t.sleeswijkvisser@erasmusmc.nl-

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)