Clinical Study to Assess the Effectiveness of the Device Patello (Patello)

The device "Patello" was designed to passively mobilize the Patella in cranial-caudal direction. Its application field lays in the rehabilitation of any knee pathology where knee range of motion may be restricted due to the Patella mobility.

Study Overview

• Status: Completed
• Conditions: Passiv Continuous Patella Mobilisation
• Intervention / Treatment: Device: Patello

Detailed Description

The effectiveness of the device Patello has not been tested so far. This clinical study aims to assess and proof the effectiveness of this device. The aim is to objectify the movement of the Patella induced by the device Patello in cranial / caudal direction. As outcome parameter serve ultrasound measurements of a bony reference point of the femur and the Patella and its displacement / distance after mobilization.

• Study Type: Interventional
• Enrollment (Actual): 9
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Switzerland
  • Kanton Graubünden
    • Landquart, Kanton Graubünden, Switzerland, 7302
      • SUPSI Landquart

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 30 years (Adult)
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• no operation and / or actual problems (pain at rest or during strain) of the muscular or bony parts of the lower extremities
• closed and intact skin conditions in the area of the knees and thighs
• no fear of the intervention
• willingness to participate on all 2 measurement days

Exclusion Criteria:

• operation and / or actual problems (pain at rest or during strain) of the muscular or bony parts of the lower extremities
• open skin conditions in the area of the knees and thighs
• fear of the intervention
• no willingness to participate on all 2 measurement days

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Device Feasibility
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Patello; The participants' right knee was placed inside the patello device, a total of 50 repetitions, with a constant mobilisation speed, was conducted and the degree of translation was assessed after 1, 10, 20, 30 and 50 repetitions.	Device: Patello; The Patello is a new intervention device which mobilizes the Patella passively and continuously in cranial-caudal direction to increase Patella mobility.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Patellofemoral Translation	Patellar cranial-caudal translation (in centimeters) is assessed repeatedly within a single passive continuous mobilization session. A total of 50 repetitions are performed at a constant mobilization speed. Ultrasound video sequences are recorded, and patellar translation is analyzed immediately after 1, 10, 20, 30, and 50 repetitions during the same session.	Assessed after 1, 10, 20, 30 and 50 mobilization repetitions during a single continous passieve patellar moblizitaion session of 50 repetitions (total duration approximately 5-10 minutes)

Collaborators and Investigators

• Sponsor: University of Applied Sciences and Arts of Southern Switzerland
• Investigators: Principal Investigator: Ron Clijsen, Dr, University of Applied Sciences and Art of Switzerland (SUPSI)

Publications and helpful links

General Publications

• Hohenauer, E., Stoop, R., Koller, A., Gredig, J., Fenzl, M., Deflorin, C., & Clijsen, R. (2020). Efficacy of a new device for passive continuous patellar mobilization. International Journal of Medical and Biomedical Studies, 4(3), 07-10. doi: 10.32553/ijmbs.v4i3.971

Helpful Links

• fullversion of publication

Study record dates

Study Major Dates

• Study Start (Actual): May 31, 2018
• Primary Completion (Actual): July 31, 2019
• Study Completion (Actual): August 31, 2019

Study Registration Dates

• First Submitted: April 3, 2018
• First Submitted That Met QC Criteria: April 18, 2018
• First Posted (Actual): May 1, 2018

Study Record Updates

• Last Update Posted (Estimated): December 2, 2025
• Last Update Submitted That Met QC Criteria: November 17, 2025
• Last Verified: November 1, 2025

More Information

Terms related to this study

• Other Study ID Numbers: SUPSI

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Study Data/Documents

1. scientific Article

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No