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OpenTrials
Completed

NCT Number: NCT04939389

Comparing a Sensor for Movement Assessment With Traditional Clinical Assessment Methods in Patients After Knee Surgery.

Eight parameters measurable by the sensor "Orthelligent Pro" are compared with traditional measurements based on a goniometer or video taping. The aim is to inform potential users about the distribution of the differences they have to expect when moving from traditional measurement methods to the new sensor.

Patients will perform eight corresponding movement exercises at a single study visit.

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Key information

Conditions

Status After Knee Surgery

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

crossklinik AG

Basel, 4054, Switzerland

About this study

In patients suffering from musculo-skeletal disorders, the restoration of full functioning is an important goal of many interventions. Assessment of functioning is often based on corresponding tests. If functioning is related to specific movement patterns, accelerometers and similar sensors are promising to allow a simple and objective assessment, and may replace traditional assessment methods, e.g. based on measurements with the goniometer. Corresponding products tend to enter the market and face clinicians and patients with the question, to which degree they are reliable and comparable with the traditional assessment methods.

Recently, a sensor named "Orthelligent Pro" has been released by the medical device company OPED and is today commercially available. The sensor - to be attached to the knee of a subject - offers the opportunity to assess several parameters related to movement patterns in the lower extremities that are of relevance in the rehabilitation process of orthopedic patients.

The aim of the current project is to inform potential users of this sensor about the difference they have to expect when compared to traditional assessment techniques of the same parameters and about the reproducibility of the measurements both based on the sensor and based on traditional assessments.

Patients of a single clinic will be offered participation. The patients will perform the eight exercises at a single study visit arranged as an addition to a routine follow up visit.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Patients after knee surgery (ACL reconstruction, total or partial knee arthroplasty, knee arthroscopy etc.) who are scheduled to a clinical follow up assessment by the surgeon between 4 months and 15 months after surgery.
  • Informed consent

Exclusion criteria

  • Age below 18 years
  • Patients who underwent surgery in the lower extremities within the last 4 months
  • Patients with severe acute pain
  • Patients with contraindications to perform the movements/exercises
  • Patients who underwent surgery also at the contralateral leg since the surgery related to the current follow up visit
  • Patients who cannot follow the instructions due to language or cognitive problems

Treatment and study plan

Orthelligent Pro

Diagnostic Test

The sensor is attached to the knee of the participant and eight different movement exercises are performed

Primary outcomes

  1. Tilt angle of the leg in degrees during passive movement of the leg (knee joint)

    Time frame: At the single study visit directly after enrollment of the patient.

  2. Tilt angle of the leg in degrees during active movement of the leg (knee joint)

    Time frame: At the single study visit directly after enrollment of the patient.

  3. Tilt angle of the leg in degrees during leg stretching

    Time frame: At the single study visit directly after enrollment of the patient.

  4. Inward tilt of the lower leg in degrees/on an ordinal assessment scale during one-legged squat

    Time frame: At the single study visit directly after enrollment of the patient.

  5. Angle reproduction when moving the lower leg to three randomly chosen angles

    Time frame: At the single study visit directly after enrollment of the patient.

  6. Jump height at vertical jump (on one leg)

    Time frame: At the single study visit directly after enrollment of the patient.

  7. Inward tilt of the lower leg in degrees/on an ordinal assessment scale at drop jump

    Time frame: At the single study visit directly after enrollment of the patient.

  8. Number of jumps during 30s side hops

    Time frame: At the single study visit directly after enrollment of the patient.

Sponsors and collaborators

Lead sponsor

crossklinik AG

Other

Collaborators

  • Basel Academy for Quality and Research in Medicine

Registry information

Acronym: MA-KNEE

Important dates

Study start
2021
Primary completion
2022
Study completion
2022
First posted
Jun 25, 2021
Registry last updated
Apr 9, 2024

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.