Glenohumeral joint kinematics related to minor anterior instability of the shoulder at the end of the late preparatory phase of throwing

Baeyens, Jean-Pierre; Roy, Peter Van; Schepper, A. De; Declercq, G; Clarijs, J. P.

doi:10.1016/s0268-0033(01)00068-7

Cited by 47 publications

(31 citation statements)

References 12 publications

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“…2D imaging of glenohumeral joint position using fluoroscopy (Werner et al 2004) or radiography (Poppen and Walker 1976) can not sufficiently characterize motion of a six degree-of-freedom joint. 3D imaging of glenohumeral joint position has been performed with MRI (Graichen et al 2000), CT (Baeyens et al 2001), or biplane radiography (Paletta et al 1997), but these techniques are currently limited to static analyses. Conventional motion measurement systems can track the position of surface markers or sensors during dynamic activities (Ludewig and Cook 2002), but these systems are susceptible to skin movement artifact and in-vivo accuracy assessment is difficult and rarely performed.…”

Section: Discussionmentioning

confidence: 99%

Measuring dynamic in-vivo glenohumeral joint kinematics: Technique and preliminary results

Bey

Kline

Zauel

et al. 2008

Journal of Biomechanics

107

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Rotator cuff tears are a common injury that affect a significant percentage of the population over age 60. Although it is widely believed that the rotator cuff's primary function is to stabilize the humerus against the glenoid during shoulder motion, accurately measuring the three-dimensional (3D) motion of the shoulder's glenohumeral joint under in-vivo conditions has been a challenging endeavor. In particular, conventional motion measurement techniques have frequently been limited to static or two-dimensional (2D) analyses, and have suffered from limited or unknown in-vivo accuracy. We have recently developed and validated a new model-based tracking technique that is capable of accurately measuring the 3D position and orientation of the scapula and humerus from biplane x-ray images. Herein we demonstrate the in-vivo application of this technique for accurately measuring glenohumeral joint translations during shoulder motion in the repaired and contralateral shoulders of patients following rotator cuff repair. Five male subjects were tested at 3−4 months following arthroscopic rotator cuff repair. Superior-inferior humeral translation was measured during elevation, and anterior-posterior humeral translation was measured during external rotation in both the repaired and contralateral shoulders. The data failed to detect statistically significant differences between the repaired and contralateral shoulders in superior-inferior translation (p=0.74) or anterior-posterior translation (p=0.77). The measurement technique overcomes the limitations of conventional motion measurement techniques by providing accurate, 3D, in-vivo measures of glenohumeral joint motion during dynamic activities. On-going research is using this technique to assess the effects of conservative and surgical treatment of rotator cuff tears.

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Section: Discussionmentioning

confidence: 99%

Measuring dynamic in-vivo glenohumeral joint kinematics: Technique and preliminary results

Bey

Kline

Zauel

et al. 2008

Journal of Biomechanics

107

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“…The relative position of the rotation centers of the humerus and the scapula is characterized by the absolute displacement of two points relative to each other (absolute displacement of rotation centers). The steps in determining the parameter are as follows: (1) to determine the rotation centers of the humerus and the scapula when the two rotation centers are the closest to (r Hmin and r Smin ), and the farthest from each other (r Hmax and r Smax ); (2) to determine the maximum distance (d SH, max ) and minimum distance between the rotation centers of the scapula and the humerus; (3) to determine the absolute displacement of rotation centers (D SH ), which is the difference between the maximum and the minimum distance.…”

Section: Assessment Parametersmentioning

confidence: 99%

Kinematic and muscle activity characteristics of multidirectional shoulder joint instability during elevation

Illyés

Kiss²

2005

Knee Surg Sports Traumatol Arthr

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Alterations of shoulder motion have been suggested to be associated with shoulder disorders. The objective of this study was to perform a 3D motion analysis (kinematic and electromyographical) of skeletal elements and muscles of shoulder joint in patients with multidirectional instability. Fifteen patients with multidirectional instability and 15 normal controls were investigated during continuous elevation in the scapular plane. The spatial coordinates of 16 anatomical points of the shoulder to determine kinematical parameters were quantified by an ultrasound-based motion analyzer. The activities of 12 muscles were measured by surface electromyography. Kinematic characteristics of motion were identified by scapulothoracic, glenohumeral, and humeral elevation angles; range of angles; scapulothoracic and glenohumeral rhythm; scapulothoracis, glenohumeral, and scapuloglenoid ratios; and the relative displacement between the rotation centers of the humerus and the scapula. The electromyographical characteristics of motion were modeled by the on-off pattern of muscle activity. Significant alterations in kinematical parameters were observed between patients and asymptomatic volunteers. The anterior, posterior, and inferior dislocations of shoulders with multidirectional instability could be properly modeled by the relative displacement between the rotation centers of the scapula and humerus. The shorter activity by m. pectoralis maior and all three parts of m. deltoideus and longer activity by m. supraspinatus, m. biceps brachii, and m. infraspinatus assure the centralization of the glenuhumeral head of a shoulder with multidirectional instability.

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“…This study defined the axis of the humeral head and the axis of the scapula, and it conducted static experimental research using X-ray [5]. Later studies, too, have depended on cadaveric simulations [18], 2D imaging [5], static 3D imaging [40][41][42] and conventional motion measurement systems [36]. Cadaveric experiments can provide accurate measures of joint position or motion, but are unable to duplicate the complex motions or forces associated with in vivo conditions [43].…”

Section: Discussionmentioning

confidence: 99%

“…Cadaveric experiments can provide accurate measures of joint position or motion, but are unable to duplicate the complex motions or forces associated with in vivo conditions [43]. The shoulder joint was experimented in 3D using MRI [41], CT [40], and biplane radiography [42], but currently, these technologies are limited to static analyses. This study conducted serial radiography in shoulder abduction using the C-arm that can conduct dynamic experiments, and followed the definitions of the axis of the humeral head and the axis of the scapula by Poppen and Walker [5].…”

Section: Discussionmentioning

confidence: 99%

Osteokinematic analysis during shoulder abduction using the C-arm

Lee

Kim²,

Lee

et al. 2017

PTRS

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Objective: Despite reliable evidence of abnormal scapular motions increases, there is not yet sufficient evidence of abnormal humeral translations. This study aims to analyze the motion of the humeral head toward the scapula when the shoulder is actively abducted using the C-arm. Design: A case report. Methods: The participant was a healthy man without any limitation and pain during shoulder movement. The participant's shoulder was abducted; this movement in the frontal plane was measured using a C-arm (anterior-posterior view) and was analyzed with computer-aided design. The starting posture was 15°, and as the participant abducted his shoulder measurements were taken and analyzed at 30°, 60°, 90°, 120°, 150°, and ending at 165°. A line was drawn perpendicularly to the line connecting the humeral head axis to the glenoid, and another line was drawn perpendiculary to the line connecting the scapular axis to the glenoid. The distance between the two lines measured is defined as the e value. Results: At the starting posture (15°), the central axis of the humeral head was located 1.92 mm inferior to the central axis of the scapula. The humeral head was superiorly translated from the starting posture to 120°, and then, showed an inferior translation to the ending posture (165°). Conclusions:The results of this study showed that the humeral head moved upward from the starting posture (15°) up to 120° indicating, superior translation, and it moved downward when the posture was past 120°, indicating inferior translation.

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Glenohumeral joint kinematics related to minor anterior instability of the shoulder at the end of the late preparatory phase of throwing

Cited by 47 publications

References 12 publications

Measuring dynamic in-vivo glenohumeral joint kinematics: Technique and preliminary results

Measuring dynamic in-vivo glenohumeral joint kinematics: Technique and preliminary results

Kinematic and muscle activity characteristics of multidirectional shoulder joint instability during elevation

Osteokinematic analysis during shoulder abduction using the C-arm

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