Measurement of active shoulder motion using the Kinect, a commercially available infrared position detection system. J Shoulder Elbow Surg 2016 Feb;25(2):216-23
Date
09/06/2015Pubmed ID
26341024DOI
10.1016/j.jse.2015.07.011Scopus ID
2-s2.0-84958769059 (requires institutional sign-in at Scopus site) 26 CitationsAbstract
BACKGROUND: The shoulder's ability to participate in sports and activities of daily living depends on its active range of motion. Clinical goniometry is of limited utility in rigorously assessing limitation of motion and the effectiveness of treatment. We sought to determine (1) whether a validated position-sensing tool, the Kinect, can enable the objective clinical measurement of shoulder motion and (2) the degree to which active range of motion correlates with patient self-assessed shoulder function.
METHODS: In 10 control subjects, we compared Kinect motion measurements to measurements made on standardized anteroposterior and lateral photographs taken concurrently. In 51 patients, we correlated active motion with the ability to perform the functions of the Simple Shoulder Test (SST).
RESULTS: In controls, Kinect measurements strongly agreed with photographic measurements. In patients, the total SST score was strongly correlated with the range of active abduction. The ability to perform each of the individual SST functions was strongly correlated with active motion. The active motion in well-functioning patient shoulders averaged 155° ± 22° abduction, 159° ± 14° flexion, 76° ± 18° external rotation in abduction, -59° ± 25° internal rotation in abduction, and -3.3 ± 3.7 inches of cross-body adduction, values similar to the control shoulders. Use of the Kinect system was practical in clinical examination rooms, requiring <5 minutes to document the 5 motions in both shoulders.
DISCUSSION: The Kinect provides a clinically practical method for objectively measuring active shoulder motion. Active motion was an important determinant of patient-assessed shoulder function.
Author List
Matsen FA 3rd, Lauder A, Rector K, Keeling P, Cherones ALAuthor
Peyton Keeling MD Assistant Professor in the Orthopaedic Surgery department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
Activities of Daily LivingAdult
Arthrometry, Articular
Control Groups
Female
Humans
Male
Movement
Rotation
Shoulder
Shoulder Joint
Young Adult
