Movements at the Sternoclavicular and Acromioclavicular Joints

Conway, Anna

doi:10.1093/ptj/41.6.421

Cited by 11 publications

(11 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This information provides a foundation for understanding normal acromioclavicular joint motion as a basis for further investigation of pathology and rehabilitation approaches. J Orthop Sports Phys Ther 2008;38 (4): 181-190. doi:10.2519/jospt.2008.2386 KEY WORDS: human movement system, kinematics, scapula, shoulder medial, internal/external rotation about an approximately vertical axis, and anterior/posterior tipping or tilting about an axis directed laterally and somewhat anteriorly (FIGURE 1).…”

Section: Discussionmentioning

confidence: 99%

“…3,14 To date, few studies have been published on AC joint kinematics in human subjects. 4,11,27 Historically, Inman et al…”

Section: Discussionmentioning

confidence: 99%

“…Findings indicated that approximately 30° of upward rotation and 8° of external rotation occurred at the AC joint during a combined movement of full humeral flexion and external rotation. 4 While these studies contributed valuable information regarding AC joint movement, data were provided for only 2 rotations. Because motion at the AC joint occurs in 3 dimensions, a more comprehensive analysis is needed to fully describe joint motion.…”

Section: Discussionmentioning

confidence: 99%

“…Historically, limited attempts have been made to track the clavicle during dynamic motions, resulting in limited AC joint data for comparison. 4,11,27 Using surface sensors we were able to describe the 3-D motion occurring at the AC joint during scapular plane abduction of the humerus up to 90°, with a high level of within-session reliability, although the reliability with removal and replacement of sensors or redigitizing was not determined. Within-session ICCs were consistently above 0.94, with SEMs of approximately 2° or less.…”

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Three-Dimensional Acromioclavicular Joint Motions During Elevation of the Arm

Teece¹,

Lunden²,

Lloyd³

et al. 2008

J Orthop Sports Phys Ther

106

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

“…3,14 To date, few studies have been published on AC joint kinematics in human subjects. 4,11,27 Historically, Inman et al…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Three-Dimensional Acromioclavicular Joint Motions During Elevation of the Arm

Teece¹,

Lunden²,

Lloyd³

et al. 2008

J Orthop Sports Phys Ther

106

View full text Add to dashboard Cite

“…5,12,22,34 Inman et al 12 were the first to measure clavicular motion and position as part of a comprehensive investigation of normal shoulder function. Using a combination of 2-D radiographic data and insertion of a pin into the clavicle of a single subject, these authors described clavicular elevation and posterior long-axis rotation at the SC joint (Figure 1) as the arm was progressively elevated in flexion or abduction.…”

mentioning

confidence: 99%

Three-Dimensional Clavicular Motion During Arm Elevation: Reliability and Descriptive Data

Ludewig¹,

Behrens²,

Meyer³

et al. 2004

J Orthop Sports Phys Ther

100

View full text Add to dashboard Cite

Study Design: Cross-sectional. Objectives: To determine the reliability of a surface sensor measurement of clavicular motion during arm elevation and to describe 3-dimensional clavicular motion in an asymptomatic population. Background: Abnormal scapular motion on the thorax has been implicated in shoulder pathology. Without the ability to measure clavicular motion, it is not possible to identify if abnormal scapular motions derive from the sternoclavicular or acromioclavicular joints. Methods and Measures: Thirty-nine subjects participated in the investigation, including an asymptomatic group (n = 30) and a group with a history or current symptoms of shoulder pathology (n = 9). Clavicular angles relative to the thorax were tracked with surface electromagnetic sensors on the thorax, clavicle, and humerus as subjects completed humeral flexion, scapular plane abduction, and abduction. Within-day reliability was assessed using intraclass correlation coefficients and SEM. Descriptive statistics quantified sternoclavicular joint motions for the various arm movements. Results: Reliable measurements were obtained, with intraclass correlation coefficients ranging from 0.93 to 0.99, and SEMs from 0.9°to 1.8°. Between-day reliability SEM values were generally 2°to 4°. During elevation of the arm, the clavicle with respect to the thorax generally undergoes elevation (11°-15°maximum), retraction (15°-29°maximum), and posterior long-axis rotation (15°-31°maximum), with variability between subjects and planes of motion regarding the magnitude of motion. Conclusion: Rehabilitation approaches attempting to improve shoulder motion should benefit from improved knowledge of 3-dimensional contributions of the clavicle to normal and abnormal scapular kinematics.

show abstract