Thoracohumeral Joint Kinematics During Weighted Reaching Tasks Preoperative Versus Postoperative Supraspinatus Repair
Mentor 1
Brook Slavens
Location
Union Wisconsin Room
Start Date
5-4-2019 1:30 PM
End Date
5-4-2019 3:30 PM
Description
Rotator cuff (RC) tears are one of the most common injuries to the shoulder joint as around a quarter of the United States population will experience an RC tear, with a majority of these being tears in the supraspinatus tendon. These tears can make activities of daily living difficult, as the pain and injury impede the individual’s range of motion (ROM). Approximately 300,000 Americans need surgery to repair an RC tear each year. The goal of surgery is that ROM of the injured arm is increased after operation. Therefore, it is important that the amount of time necessary for successful recovery is understood, which this study aims to evaluate. Six subjects were tested within three months before operation, three months postoperatively, and six months postoperatively. Subjects performed the following tasks: lifting a weight from the waist height up 30.3 cm onto a platform, and lowering a weight from a platform at eye level down 30.3 cm. Each task was completed five times in both the sagittal plane and coronal plane, and used a maximum weight of two pounds. A 15 camera Vicon T-Series Motion Capture System was used to capture reflective markers placed on specific locations of the upper limbs and torso. A custom biomechanical model was applied to the motion data to calculate the 3D thoracohumeral joint (humerus relative to torso) angles. The ROM in coronal and sagittal planes will be calculated and averaged over three trials. Individual and group averages will then be compared across the visits. It is expected that the subjects’ average ROM will increase following surgery as the supraspinatus heals. The data from this study could be used by therapists and clinicians to develop new strategies to improve the recovery process, or as evidence for insurance companies to provide for more postoperative therapy.
Thoracohumeral Joint Kinematics During Weighted Reaching Tasks Preoperative Versus Postoperative Supraspinatus Repair
Union Wisconsin Room
Rotator cuff (RC) tears are one of the most common injuries to the shoulder joint as around a quarter of the United States population will experience an RC tear, with a majority of these being tears in the supraspinatus tendon. These tears can make activities of daily living difficult, as the pain and injury impede the individual’s range of motion (ROM). Approximately 300,000 Americans need surgery to repair an RC tear each year. The goal of surgery is that ROM of the injured arm is increased after operation. Therefore, it is important that the amount of time necessary for successful recovery is understood, which this study aims to evaluate. Six subjects were tested within three months before operation, three months postoperatively, and six months postoperatively. Subjects performed the following tasks: lifting a weight from the waist height up 30.3 cm onto a platform, and lowering a weight from a platform at eye level down 30.3 cm. Each task was completed five times in both the sagittal plane and coronal plane, and used a maximum weight of two pounds. A 15 camera Vicon T-Series Motion Capture System was used to capture reflective markers placed on specific locations of the upper limbs and torso. A custom biomechanical model was applied to the motion data to calculate the 3D thoracohumeral joint (humerus relative to torso) angles. The ROM in coronal and sagittal planes will be calculated and averaged over three trials. Individual and group averages will then be compared across the visits. It is expected that the subjects’ average ROM will increase following surgery as the supraspinatus heals. The data from this study could be used by therapists and clinicians to develop new strategies to improve the recovery process, or as evidence for insurance companies to provide for more postoperative therapy.
