Magnetic Resonance Based Motion Analysis of the Shoulder During Elevation

Graichen, Heiko; Stammberger, Tobias; Bonél, Harald; Haubner, Michael; Englmeier, Karl‐Hans; Reiser, Maximilian; Eckstein, F.

doi:10.1097/00003086-200001000-00014

Cited by 71 publications

(71 citation statements)

References 17 publications

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“…Unfortunately, their results could not be compared with ours because they did not show the kinematics data at the AC joint. Graichen et al 23 acquired 3D MR images using a conventional open MRI and measured the claviculo-glenoid angle.…”

Section: Discussionmentioning

confidence: 99%

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3D kinematic analysis of the acromioclavicular joint during arm abduction using vertically open MRI

Sahara

Sugamoto

Murai³

et al. 2006

J. Orthop. Res.

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Many researchers have evaluated the motions of the shoulder girdle, especially scapular and humeral motion. However, few reports exist that describe motions of the acromioclavicular joint. The purpose of the present study was to analyze the 3D kinematics of the acromioclavicular joint during arm abduction using 3D MR images obtained by a vertically open MRI. Fourteen shoulders of seven volunteers were examined in seven static positions from 08 to the maximum abduction in a seated position. 3D surface models of the clavicle and scapula were created, and the movements of the acromioclavicular joint from 08 to each position were calculated using the volume-based registration technique. From these calculations, the translations were evaluated and the rotational motions were analyzed using the concept of the screw axis. In the anteroposterior direction, the clavicle translated most posteriorly (À1.9 AE 1.3 mm) at 908 of abduction and most anteriorly (1.6 AE 2.7 mm) at maximum abduction. In the superoinferior direction, the clavicle translated slightly superiorly (0.9 AE 1.9 mm). When analyzing relative motion of the scapula with respect to the clavicle, the scapula generally rotated about a specific screw axis passing through the insertions of both the acromioclavicular and the coracoclavicular ligaments on the coracoid process. The average rotation was 34.9 AE 8.48. ß

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Section: Discussionmentioning

confidence: 99%

“…Inman et al 2 and Graichen et al 23 reported that in vivo motion of AC joint was approximately 208 and 258 using roentgenography and 3D MR images, respectively. Rockwood et al, 5 however, reported that the joint had only 58-88 of rotation using direct insertion of pins into the clavicle and acromion.…”

Section: Discussionmentioning

confidence: 99%

3D kinematic analysis of the acromioclavicular joint during arm abduction using vertically open MRI

Sahara

Sugamoto

Murai³

et al. 2006

J. Orthop. Res.

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“…Typical kinematic measurement techniques of attaching reflective markers over anatomical landmarks do not adequately track the scapula as it glides beneath the skin surface 9 . Various methods have been adopted throughout the literature to overcome these difficulties, including; imaging (X-ray or magnetic resonance) [10][11][12][13][14] , goniometers 15,16 , bone pins [17][18][19][20][21][22] , manual palpation 23,24 , and the acromion method 3,5,19,25 . Each method, however, has its limitations which include: exposure to radiation, projection errors in the case of two-dimensional image based analysis, require repeated subjective interpretation of the location of the scapula, are static in nature or are highly invasive (e.g.…”

Section: Introductionmentioning

confidence: 99%

Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact

Warner

Chappell

Stokes

2015

JoVE

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The measurement of dynamic scapular kinematics is complex due to the sliding nature of the scapula beneath the skin surface. The aim of the study was to clearly describe the acromion marker cluster (AMC) method of determining scapular kinematics when using a passive marker motion capture system, with consideration for the sources of error which could affect the validity and reliability of measurements. The AMC method involves placing a cluster of markers over the posterior acromion, and through calibration of anatomical landmarks with respect to the marker cluster it is possible to obtain valid measurements of scapular kinematics. The reliability of the method was examined between two days in a group of 15 healthy individuals (aged 19-38 years, eight males) as they performed arm elevation, to 120°, and lowering in the frontal, scapular and sagittal planes. Results showed that between-day reliability was good for upward scapular rotation (Coefficient of Multiple Correlation; CMC = 0.92) and posterior tilt (CMC = 0.70) but fair for internal rotation (CMC = 0.53) during the arm elevation phase. The waveform error was lower for upward rotation (2.7° to 4.4°) and posterior tilt (1.3° to 2.8°), compared to internal rotation (5.4° to 7.3°). The reliability during the lowering phase was comparable to results observed during the elevation phase. If the protocol outlined in this study is adhered to, the AMC provides a reliable measurement of upward rotation and posterior tilt during the elevation and lowering phases of arm movement. Video LinkThe video component of this article can be found at

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“…Most current studies capture kinematic data with a motion analysis system similar to the one used for this study. The limited availability and cost of a vertically open MRI system may make it difficult to implement into most study designs (Graichen et al, 2000;Karduna et al, 2001). Some study designs capture 3D kinematics statically versus dynamically (Marchese and Johnson, 2001).…”

Section: Discussionmentioning

confidence: 99%

Capturing three-dimensional clavicle kinematics: a validation of surface sensor measurements

Szucs

Borstad

2015

IJECB

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Despite conclusions from previous research that clavicle rotation is necessary for normal shoulder motion, dynamic clavicle rotations are rarely included in shoulder studies. This is likely due to the difficult nature in capturing clavicle motion. The purpose of this study was to determine the validity of non-invasive electromagnetic measures of dynamic clavicle motion against bone pin measurements. 3D rotations of the clavicle were collected simultaneously from a surface sensor and bone pin mounted sensor from six cadaveric shoulders. Intraclass correlation coefficients (ICCs) were calculated to determine the validity of the surface sensor measurements compared to the bone pin measurements. It was determined that the electromagnetic surface sensor accurately tracks retraction and elevation, but underestimates axial rotation. A mathematical equation was developed to improve the fit of surface sensor values for axial rotation. The strong ICC values for each clavicle rotation suggest that the surface sensor has utility in future shoulder research.

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Magnetic Resonance Based Motion Analysis of the Shoulder During Elevation

Cited by 71 publications

References 17 publications

3D kinematic analysis of the acromioclavicular joint during arm abduction using vertically open MRI

3D kinematic analysis of the acromioclavicular joint during arm abduction using vertically open MRI

Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact

Capturing three-dimensional clavicle kinematics: a validation of surface sensor measurements

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