A Novel Sensor-Based Application for Home-Based Rehabilitation Can Objectively Measure Postoperative Outcomes following Anterior Cruciate Ligament Reconstruction

Author:

Mengis Natalie123,Schmidt Sebastian24,Ellermann Andree2,Sobau Christian2,Egloff Christian3,Kreher Mahli Megan5,Ksoll Korbinian6ORCID,Schmidt-Lucke Caroline5ORCID,Rippke Jules-Nikolaus237

Affiliation:

1. Department of Orthopedic and Trauma Surgery, Kantonsspital Baselland, 4101 Bruderholz, Switzerland

2. ARCUS Kliniken, Department of Sports Medicine, Rastatter Straße 17-19, 75175 Pforzheim, Germany

3. Department of Orthopedic and Trauma Surgery, University Hospital Basel, Petersgraben 4/Spitalstrasse 21, 4031 Basel, Switzerland

4. Department of Orthopedic Surgery, Vincentius-Diakonissen-Kliniken gAG, Steinhäuserstraße 18, 76135 Karlsruhe, Germany

5. MEDIACC, Medical-Academic Research Consultancy, 10713 Berlin, Germany

6. OPED GmbH, Medizinpark 1, 83626 Valley, Germany

7. Department of Orthopedic and Trauma Surgery, KSA Spital Zofingen, Mühlethalstrasse 27, 4800 Zofingen, Switzerland

Abstract

In order to successfully implement individualized patient rehabilitation and home-based rehabilitation programs, the rehabilitation process should be objectifiable, monitorable and comprehensible. For this purpose, objective measurements are required in addition to subjective measurement tools. Thus, the aim of this prospective, single-center clinical trial is the clinical validation of an objective, digital medical device (DMD) during the rehabilitation after anterior cruciate ligament reconstruction (ACLR) with regards to an internationally accepted measurement tool. Sixty-seven patients planned for primary ACLR (70:30% male–female, aged 25 years [21–32], IKDC-SKF 47 [31–60], Tegner Activity Scale 6 [4–7], Lysholm Score 57 [42–72]) were included and received physical therapy and the DMD after surgery. For clinical validation, combined measures of range of motion (ROM), coordination, strength and agility were assessed using the DMD in addition to patient-reported outcome measures (PROMs) at three and six months after ACLR. Significant correlations were detected for ROM (rs = 0.36–0.46, p < 0.025) and strength/agility via the single-leg vertical jump (rs = 0.43, p = 0.011) and side hop test (rs = 0.37, p = 0.042), as well as for coordination via the Y-Balance test (rs = 0.58, p ≤ 0.0001) regarding the IKDC-SKF at three months. Additionally, DMD test results for coordination, strength and agility (Y-Balance test (rs = 0.50, p = 0.008), side hop test (rs = 0.54, p = 0.004) and single-leg vertical jump (rs = 0.44, p = 0.018)) correlate significantly with the IKDC-SKF at six months. No adverse events related to the use of the sensor-based application were reported. These findings confirm the clinical validity of a DMD to objectively quantify knee joint function for the first time. This will have further implications for clinical and therapeutic decision making, quality control and monitoring of rehabilitation measures as well as scientific research.

Funder

OPED GmbH

Publisher

MDPI AG

Subject

Medicine (miscellaneous)

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