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

Serial Changes in 3-Dimensional Supraspinatus Muscle Volume After Rotator Cuff Repair

2017 ◽  
Vol 45 (10) ◽  
pp. 2345-2354 ◽  
Author(s):  
Seok Won Chung ◽  
Kyung-Soo Oh ◽  
Sung Gyu Moon ◽  
Na Ra Kim ◽  
Ji Whan Lee ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Muscle Volume ◽  
Shoulder Abduction ◽  
Volume Changes ◽  
3 Dimensional ◽  
Supraspinatus Muscle ◽  
Semiautomatic Segmentation ◽  
Cuff Repair ◽  
Area And Volume

Background: There is considerable debate on the recovery of rotator cuff muscle atrophy after rotator cuff repair. Purpose: To evaluate the serial changes in supraspinatus muscle volume after rotator cuff repair by using semiautomatic segmentation software and to determine the relationship with functional outcomes. Study Design: Case series; Level of evidence, 4. Methods: Seventy-four patients (mean age, 62.8 ± 8.8 years) who underwent arthroscopic rotator cuff repair and obtained 3 consecutive (preoperatively, immediately postoperatively, and later postoperatively [≥1 year postoperatively]) magnetic resonance imaging (MRI) scans having complete Y-views were included. We generated a 3-dimensional (3D) reconstructed model of the supraspinatus muscle by using in-house semiautomatic segmentation software (ITK-SNAP) and calculated both the 2-dimensional (2D) cross-sectional area and 3D volume of the muscle in 3 different views (Y-view, 1 cm medial to the Y-view [Y+1 view], and 2 cm medial to the Y-view [Y+2 view]) at the 3 time points. The area and volume changes at each time point were evaluated according to repair integrity. Later postoperative volumes were compared with immediately postoperative volumes, and their relationship with various clinical factors and the effect of higher volume increases on range of motion, muscle power, and visual analog scale pain and American Shoulder and Elbow Surgeons scores were evaluated. Results: The interrater reliabilities were excellent for all measurements. Areas and volumes increased immediately postoperatively as compared with preoperatively; however, only volumes on the Y+1 view and Y+2 view significantly increased later postoperatively as compared with immediately postoperatively ( P < .05). There were 9 patients with healing failure, and area and volume changes were significantly less later postoperatively compared with immediately postoperatively at all measurement points in these patients ( P < .05). After omitting the patients with healing failure, volume increases later postoperatively became more prominent ( P < .05) in the order of the Y+2 view, Y+1 view, and Y-view. Volume increases were higher in patients who healed successfully with larger tears ( P = .040). Higher volume increases were associated only with an increase in abduction power ( P = .029) and not with other outcomes. Conclusion: The supraspinatus muscle volume increased immediately postoperatively and continuously for at least 1 year after surgery. The increase was evident in patients who had larger tears and healed successfully and when measured toward the more medial portion of the supraspinatus muscle. The volume increases were associated with an increase in shoulder abduction power.

What happens to the long head of the biceps tendon after arthroscopic rotator cuff repair?

2020 ◽  
Vol 102-B (9) ◽  
pp. 1194-1199
Author(s):  
Hyo-Jin Lee ◽  
Eung-Sic Kim ◽  
Yang-Soo Kim
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Biceps Brachii ◽  
Morphological Changes ◽  
Biceps Tendon ◽  
Cross Sectional ◽  
Postoperative Changes ◽  
Long Head ◽  
Arthroscopic Rotator Cuff ◽  
Cuff Repair

Aims The purpose of this study was to identify the changes in untreated long head of the biceps brachii tendon (LHBT) after a rotator cuff tear and to evaluate the factors related to the changes. Methods A cohort of 162 patients who underwent isolated supraspinatus with the preservation of LHBT was enrolled and evaluated. The cross-sectional area (CSA) of the LHBT on MRI was measured in the bicipital groove, and preoperative to postoperative difference was calculated at least 12 months postoperatively. Second, postoperative changes in the LHBT including intratendinous signal change, rupture, dislocation, or superior labral lesions were evaluated with seeking of factors that were correlated with the changes or newly developed lesions after rotator cuff repair. Results The postoperative CSA (12.5 mm2 (SD 8.3) was significantly larger than preoperative CSA (11.5 mm2 (SD 7.5); p = 0.005). In total, 32 patients (19.8%) showed morphological changes in the untreated LHBT 24 months after rotator cuff repair. Univariate regression analysis revealed that the factor chiefly related to the change in LHBT status was an eccentric LHBT position within the groove found on preoperative MRI (p = 0.011). Multivariate analysis using logistic regression also revealed that an eccentric LHBT position was a factor related to postoperative change in untreated LHBTs (p = 0.011). Conclusion The CSA of the LHBT inside the biceps groove increased after rotator cuff repair. The preoperative presence of an eccentrically positioned LHBT was associated with further changes of the tendon itself after rotator cuff repair. Cite this article: Bone Joint J 2020;102-B(9):1194–1199.

Retraction of Supraspinatus Muscle and Tendon as Predictors of Success of Rotator Cuff Repair

2012 ◽  
Vol 40 (10) ◽  
pp. 2242-2247 ◽  
Author(s):  
Dominik C. Meyer ◽  
Karl Wieser ◽  
Mazda Farshad ◽  
Christian Gerber
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Predictors Of Success ◽  
Supraspinatus Muscle ◽  
Cuff Repair

scholarly journals Effects of Electrical Muscle Stimulation for Preventing Deltoid Muscle Atrophy after Rotator Cuff Repair: Preliminary Results of a Prospective, Randomized, Single-blind Trial

2019 ◽  
Vol 22 (4) ◽  
pp. 195-202
Author(s):  
Goo Joo Lee ◽  
Hangyeol Cho ◽  
Byung-Hyun Ahn ◽  
Ho-Seung Jeong
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Neuromuscular Electrical Stimulation ◽  
Cross Sectional ◽  
Post Surgery ◽  
Significant Difference ◽  
Functional Scores ◽  
Arthroscopic Rotator Cuff ◽  
Abduction Strength ◽  
Cuff Repair

Background: This study investigates the effects of neuromuscular electrical stimulation (NMES) in preventing deltoid atrophy during the first 12 weeks after arthroscopic rotator cuff repair.Methods: Eighteen patients undergoing arthroscopic repair of a medium-sized rotator cuff tear by a single surgeon, were randomized into two groups: NMES and transcutaneous electrical nerve stimulation (TENS). Each group used the respective device for 6 weeks after surgery. Pain was measured at baseline, 6, and 12 weeks postoperatively, using the visual analogue scale (VAS); range of motion (ROM), abduction strength and functional scores were measured at baseline and 12 weeks postoperatively. Deltoid thickness and cross-sectional areas were measured using magnetic resonance imaging at 12 weeks postoperatively.Results: At 12 weeks post-surgery, no statistically significant difference was observed between the NMES and TENS groups in the pain VAS, the Disabilities of the Arm, Shoulder and Hand score, ROM, and abduction strength. Postoperative decrease in the thickness of the anterior, middle, and posterior deltoid, at the level just below the coracoid, was -2.5%, -0.7%, and -6.8%, respectively, in the NMES group, and -14.0%, -2.6%, and -8.2%, respectively, in the TENS group (<i>p</i>=0.016, <i>p</i>=0.677, and <i>p</i>=0.791, respectively). At the level of the inferior glenoid tubercle, postoperative decrease in area of the deltoid was -5.4% in the NMES group and -14.0% in the TENS group, which was significantly different (<i>p</i>=0.045).Conclusions: NMES has the potential for reducing deltoid atrophy after arthroscopic rotator cuff repair, suggesting that NMES might help minimize postoperative atrophy after various shoulder surgeries.

Increased stiffness of the supraspinatus muscle at 1 month after arthroscopic rotator cuff repair causes retear

2020 ◽  
Vol 29 (4) ◽  
pp. e136-e137
Author(s):  
Yoshiaki Itoigawa ◽  
Tomoki Wada ◽  
Takayuki Kawasaki ◽  
Daichi Morikawa ◽  
Akihisa Koga ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Arthroscopic Rotator Cuff Repair ◽  
Supraspinatus Muscle ◽  
Arthroscopic Rotator Cuff ◽  
Cuff Repair

Contrast-Enhanced Ultrasound Determines Supraspinatus Muscle Atrophy After Cuff Repair and Correlates to Functional Shoulder Outcome

2018 ◽  
Vol 46 (11) ◽  
pp. 2735-2742 ◽  
Author(s):  
Christian Fischer ◽  
Sascha Gross ◽  
Felix Zeifang ◽  
Gerhard Schmidmaier ◽  
Marc-André Weber ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Cross Sectional Study ◽  
Contrast Enhanced Ultrasound ◽  
Sectional Study ◽  
Cross Sectional ◽  
Supraspinatus Muscle ◽  
Constant Murley Score ◽  
Contrast Enhanced ◽  
Cuff Repair

Background: Muscle degeneration as a consequence of rotator cuff tears is mainly assessed by magnetic resonance imaging. Contrast-enhanced ultrasound (CEUS) is a new functional imaging method to assess microvascular perfusion as a fundamental parameter of muscle tissue vitality. In this cross-sectional study, the authors evaluated supraspinatus muscle perfusion after cuff repair and analyzed its association with functional shoulder outcome and the grade of echogenicity in B-mode ultrasound indicating fatty infiltration. Hypothesis: The authors expected reduced microperfusion of the operated versus the contralateral supraspinatus muscle and a correlation of the muscular microperfusion with functional shoulder outcome. Study Design: Cross-sectional study; Level of evidence, 3. Methods: Patients who received unilateral repair of the supraspinatus tendon between 2009 and 2014 were invited for a single follow-up examination. Functional scores were assessed, including the Constant-Murley score and American Shoulder and Elbow Surgeons score. CEUS examination was performed bilaterally in an oblique sagittal plane of the supraspinatus fossa. Perfusion was quantified by the parameters wash-in perfusion index (WiPI) and peak enhancement via VueBox quantification software. The results of the Constant-Murley score, American Shoulder and Elbow Surgeons score, and perfusion parameters were referenced to the contralateral shoulder. Echogenicity of the supraspinatus muscle was classified with a 3-point scale as compared with the trapezius muscle. Results: Sixty-seven patients were available, with a mean follow-up of 38.0 ± 18.5 months. Functional assessment showed impaired shoulder function on the operated shoulder as compared with the contralateral side (relative Constant Score [CS], 80% ± 19%). CEUS revealed diminished perfusion on the operated shoulder (WiPI, 55.1% ± 40.2%, P < .001). A strong correlation could be demonstrated between the perfusion deficit and functional impairment (relative WiPI and CS: rs = .644, P < .001). Higher grade of echogenicity in B-mode ultrasound was associated with reduced perfusion. Conclusion: CEUS could visualize impaired supraspinatus muscle perfusion after rotator cuff repair as compared with the contralateral, healthy shoulder. With its ability to quantify microvascular perfusion as a surrogate parameter for muscle vitality and function, CEUS may serve as a quantitative method to evaluate rotator cuff muscles.

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