scholarly journals Appropriate Slice Location to Assess Maximal Cross-sectional Area of Individual Rotator Cuff Muscles in Normal Adults and Athletes

2009 ◽  
Vol 8 (2) ◽  
pp. 65-71 ◽  
Author(s):  
Osamu YANAGISAWA ◽  
Michiko DOHI ◽  
Toru OKUWAKI ◽  
Noriyuki TAWARA ◽  
Mamoru NIITSU ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Normal Adults ◽  
Slice Location

scholarly journals Cross-Sectional Area of the Rotator Cuff Muscles in MRI – Is there Evidence for a Biomechanical Balanced Shoulder?

PLoS ONE ◽  
2016 ◽  
Vol 11 (6) ◽  
pp. e0157946 ◽  
Author(s):  
Samy Bouaicha ◽  
Ksenija Slankamenac ◽  
Beat K. Moor ◽  
Sina Tok ◽  
Gustav Andreisek ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional

Cross-Sectional Area of the Supraspinatus Muscle After Rotator Cuff Repair

2013 ◽  
Vol 95 (19) ◽  
pp. 1785-1791 ◽  
Author(s):  
Chris Hyunchul Jo ◽  
Ji Sun Shin
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Supraspinatus Muscle ◽  
Cuff Repair

scholarly journals Evaluation of Muscular Atrophy and Fatty Infiltration Using Time-zero Magnetic Resonance Imaging as Baseline Data, After Rotator Cuff Repair

2019 ◽  
Vol 22 (2) ◽  
pp. 70-78 ◽  
Author(s):  
Hyoung Bok Kim ◽  
Jae Chul Yoo ◽  
Jeung Yeol Jeong
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Rotator Cuff ◽  
Cross Sectional Area ◽  
Low Grade ◽  
Sectional Area ◽  
Resonance Imaging ◽  
Cross Sectional ◽  
Time Zero ◽  
The Cross

Background: This study evaluated postoperative changes in the supraspinatus from time-zero to 6 months, using magnetic resonance imaging (MRI). We hypothesized that restoration of the musculotendinous unit of the rotator cuff by tendon repair immediately improves the rotator cuff muscle status, and maintains it months after surgery.Methods: Totally, 76 patients (29 men, 47 women) with rotator cuff tears involving the supraspinatus tendon who underwent arthroscopic rotator cuff repairs were examined. MRI evaluation showed complete repair with intact integrity of the torn tendon at both time-zero and at 6 months follow-up. All patients underwent standardized MRI at our institution preoperatively, at 1 or 2 days postoperative, and at 6 months after surgery. Supraspinatus muscular (SSP) atrophy (Thomazeau grade) and fatty infiltrations (Goutallier stage) were evaluated by MRI. The cross-sectional area of SSP in the fossa was also measured.Results: As determined by MRI, the cross-sectional area of SSP significantly decreased 11.41% from time-zero (immediate repair) to 6 months post-surgery, whereas the Goutallier stage and Thomazeau grade showed no significant changes (<i>p</i><0.01). Furthermore, compared to the preoperative MRI, the postoperative MRI at 6 months showed a no statistically significant increase of 8.03% in the crosssectional area. In addition, morphological improvements were observed in patients with high grade Goutallier and Thomazeau at timezero, whereas morphology of patients with low grade factors were almost similar to before surgery.Conclusions: Our results indicate that cross-sectional area of the initial repair appears to decrease after a few months postoperatively, possibly due to medial retraction or strained muscle.

scholarly journals Cross-sectional area of the tendon and the muscle of the biceps brachii in shoulders with rotator cuff tears

2005 ◽  
Vol 76 (4) ◽  
pp. 509-512 ◽  
Author(s):  
Aizawa Toshiaki ◽  
Eiji Itoi ◽  
Hiroshi Minagawa ◽  
Nobuyuki Yamamoto ◽  
Yilihamu Tuoheti ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Biceps Brachii ◽  
Cross Sectional Area ◽  
Rotator Cuff Tears ◽  
Sectional Area ◽  
Cross Sectional

Pelvic Canal Narrowing Caused by Triple Pelvic Osteotomy in the Dog

1994 ◽  
Vol 07 (03) ◽  
pp. 110-113 ◽  
Author(s):  
D. L. Holmberg ◽  
M. B. Hurtig ◽  
H. R. Sukhiani
Keyword(s):  
Postoperative Complications ◽  
Pelvic Osteotomy ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Canal Width ◽  
Operative Complications ◽  
Post Operative Complications

SummaryDuring a triple pelvic osteotomy, rotation of the free acetabular segment causes the pubic remnant on the acetabulum to rotate into the pelvic canal. The resulting narrowing may cause complications by impingement on the organs within the pelvic canal. Triple pelvic osteotomies were performed on ten cadaver pelves with pubic remnants equal to 0, 25, and 50% of the hemi-pubic length and angles of acetabular rotation of 20, 30, and 40 degrees. All combinations of pubic remnant lengths and angles of acetabular rotation caused a significant reduction in pelvic canal-width and cross-sectional area, when compared to the inact pelvis. Zero, 25, and 50% pubic remnants result in 15, 35, and 50% reductions in pelvic canal width respectively. Overrotation of the acetabulum should be avoided and the pubic remnant on the acetabular segment should be minimized to reduce postoperative complications due to pelvic canal narrowing.When performing triple pelvic osteotomies, the length of the pubic remnant on the acetabular segment and the angle of acetabular rotation both significantly narrow the pelvic canal. To reduce post-operative complications, due to narrowing of the pelvic canal, overrotation of the acetabulum should be avoided and the length of the pubic remnant should be minimized.

Jump performance and thigh muscle cross-sectional area in young female rhythmic gymnasts

2019 ◽  
Vol 178 (3) ◽  
Author(s):  
Antonio Cicchella ◽  
Monica Mannai ◽  
Jaan Ereline ◽  
Mati Paasuke ◽  
Helena Gapeyeva
Keyword(s):  
Young Female ◽  
Cross Sectional Area ◽  
Thigh Muscle ◽  
Sectional Area ◽  
Cross Sectional ◽  
Jump Performance ◽  
Muscle Cross Sectional Area ◽  
Rhythmic Gymnasts

DETERMINATION OF THE FUNCTION OF THE ROD’S CROSS-SECTIONAL AREA USING VIBRATION EIGENFREQUENCIES

2020 ◽  
Vol 0 (4) ◽  
pp. 19-24
Author(s):  
I.M. UTYASHEV ◽  
◽  
A.A. AITBAEVA ◽  
A.A. YULMUKHAMETOV ◽  
◽  
...  
Keyword(s):  
Cross Sectional Area ◽  
Variable Cross ◽  
Sectional Area ◽  
Longitudinal Vibrations ◽  
Cross Sectional ◽  
Method Error ◽  
Various Boundary Conditions ◽  
Elastic Fixation ◽  
Crosssectional Area

The paper presents solutions to the direct and inverse problems on longitudinal vibrations of a rod with a variable cross-sectional area. The law of variation of the cross-sectional area is modeled as an exponential function of a polynomial of degree n . The method for reconstructing this function is based on representing the fundamental system of solutions of the direct problem in the form of a Maclaurin series in the variables x and λ. Examples of solutions for various section functions and various boundary conditions are given. It is shown that to recover n unknown coefficients of a polynomial, n eigenvalues are required, and the solution is dual. An unambiguous solution was obtained only for the case of elastic fixation at one of the rod’s ends. The numerical estimation of the method error was made using input data noise. It is shown that the error in finding the variable crosssectional area is less than 1% with the error in the eigenvalues of longitudinal vibrations not exceeding 0.0001.

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