Influence of high-energy laser light application to the patellar tendon on its ligamentous microcirculation. A quasi-experiment.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00028155

Enrollment

Registered

2022-02-18

Start date

2022-03-30

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

Investigation on healthy test persons

Interventions

Group 1: A group size of 20 healthy volunteers in the age range of 18 to 50 years is targeted. Inclusion criteria are: a generally healthy constitution, no previous mental illnesses, no surgeries in t

Eligibility

Sex/Gender

All

Age

18 Years to 50 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria are: a generally healthy constitution. The persons to be treated must have intact thermal sensation and be able to perceive and communicate pain.

Exclusion criteria

Exclusion criteria: Exclusion criteria include: previous mental illness, surgery in the last three months, prosthetics or internal knee arthroplasty, acute inflammation, large scar area, known adhesions, skin disease or hematoma in the area of the knee joint, use of pain medication or mind-altering substances.

Design outcomes

Primary

Measure	Time frame
Measurement of the ligamentous microcirculation of the patellar tendon was performed using a laser Doppler flowmeter and tissue spectrometer (O2C, LEA Medizintechnik GmbH, Heuchelheim, Germany).	—

Secondary

Measure	Time frame
The infrared surface temperature of the patellar tendon is recorded using an infrared thermometer (Breuer GmbH) and thermography (FLIR LLC), contactless.	—

Countries

Germany

Contacts

Public ContactChristoph Egner

DIPLOMA Hochschule

christoph.egner@diploma.de+49 5722 28699732

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026