scholarly journals Inconsistencies in the MRI Evaluation of Supraspinatus Volume After Repair

2020 ◽  
Vol 8 (6) ◽  
pp. 232596712093066
Author(s):  
Young Hoon Jang ◽  
Bo-Kyung Suh ◽  
Hyunseok Jeong ◽  
Oh Hyo Kwon ◽  
Sae Hoon Kim
Keyword(s):  
Rotator Cuff ◽  
Multiplanar Reconstruction ◽  
Level Of Evidence ◽  
Cross Sectional ◽  
Postoperative Mri ◽  
Postoperative Changes ◽  
Mri Scans ◽  
Magnetic Resonance Imaging Mri ◽  
Medial Section ◽  
Cuff Repair

Background: Reversibility of rotator cuff atrophy after surgical repair is controversial. Traditionally, the cross-sectional area (CSA) of the rotator cuff was measured in conventional Y-view (CYV) via magnetic resonance imaging (MRI) to evaluate reversibility. However, it has been suggested that scanning axis inconsistency in CYV was overlooked and that the CSA in CYV reflects not only atrophy but also rotator cuff retraction. Hypothesis: Discrepancies between scanning axes in CYV cause significant errors when one is evaluating changes in the CSA of the supraspinatus (SS) using preoperative and postoperative MRI scans. A more medial section than the Y-view is not influenced as much by retraction recovery after repair. Study Design: Cohort study (diagnosis); Level of evidence, 3. Methods: The study included 36 patients with full-thickness SS tear and retraction who underwent arthroscopic complete repair with preoperative MRI and immediate postoperative MRI (within 5 days after rotator cuff repair). Angles between CYV planes in the preoperative and immediate postoperative MRI scans were measured. MRI scans were reconstructed perpendicular to the scapular axes by multiplanar reconstruction. Differences between the CSAs of the SS in preoperative and postoperative Y-view on the original and reconstructed MRI scans were compared, and changes in CSAs of the SS muscles after repair in 2 sections medial to the reconstructed Y-view (RYV) were compared. Results: The mean angle between CYV planes in preoperative and postoperative MRI scans was 13.1° ± 7.1°. Mean pre- to postoperative increase in the CSA of the SS was greater in CYV than in RYV (95 ± 72 vs 75 ± 62 mm2; P = .024). Furthermore, pre- to postoperative CSA differences in the 2 medial sections were less than in RYV. For the most medial section, crossing the omohyoid origin, the CSA differences were not significant (434 ± 98 vs 448 ± 98 mm2; P = .061). Conclusion: Scanning axes inconsistencies in CYV cause unacceptable errors in CSA measurements of the SS after repair. We recommend reconstruction along a consistent axis by multiplanar reconstruction when evaluating postoperative changes in SS atrophy and the use of sections more medial than the scapular Y-view to reduce errors caused by tendon retraction.

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.

scholarly journals Postoperative Rehabilitation After Rotator Cuff Repair

2017 ◽  
Vol 5 (1) ◽  
pp. 232596711668477 ◽  
Author(s):  
Scott Mollison ◽  
Jason J. Shin ◽  
Alexander Glogau ◽  
R. Cole Beavis
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Demographic Data ◽  
Average Response Rate ◽  
Postoperative Rehabilitation ◽  
Level Of Evidence ◽  
Cross Sectional ◽  
Shoulder Range Of Motion ◽  
Rehabilitation Protocols ◽  
Cuff Repair

Background: Postoperative rehabilitation after arthroscopic rotator cuff repair (ARCR) remains controversial and suffers from limited high-quality evidence. Therefore, appropriate use criteria must partially depend on expert opinion. Hypothesis/Purpose: The purpose of the study was to determine and report on the standard and modified rehabilitation protocols after ARCR used by member orthopaedic surgeons of the American Orthopaedic Society for Sports Medicine (AOSSM) and the Arthroscopy Association of North America (AANA). We hypothesized that there will exist a high degree of variability among rehabilitation protocols. We also predict that surgeons will be prescribing accelerated rehabilitation. Study Design: Cross-sectional study; Level of evidence, 4. Methods: A 29-question survey in English language was sent to all 3106 associate and active members of the AOSSM and the AANA. The questionnaire consisted of 4 categories: standard postoperative protocol, modification to postoperative rehabilitation, operative technique, and surgeon demographic data. Via email, the survey was sent on September 4, 2013. Results: The average response rate per question was 22.7%, representing an average of 704 total responses per question. The most common immobilization device was an abduction pillow sling with the arm in neutral or slight internal rotation (70%). Surgeons tended toward later unrestricted passive shoulder range of motion at 6 to 7 weeks (35%). Strengthening exercises were most commonly prescribed between 6 weeks and 3 months (56%). Unrestricted return to activities was most commonly allowed at 5 to 6 months. The majority of the respondents agreed that they would change their protocol based on differences expressed in this survey. Conclusion: There is tremendous variability in postoperative rehabilitation protocols after ARCR. Five of 10 questions regarding standard rehabilitation reached a consensus statement. Contrary to our hypothesis, there was a trend toward later mobilization.

scholarly journals ALLOGENEIC PLATELET-RICH PLASMA FOR ROTATOR CUFF REPAIR

2017 ◽  
Vol 25 (1) ◽  
pp. 38-43 ◽  
Author(s):  
CHRIS HYUNCHUL JO ◽  
JI SUN SHIN ◽  
SEUNG YEON LEE ◽  
SUE SHIN
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Platelet Rich Plasma ◽  
Level Of Evidence ◽  
Cross Sectional ◽  
Significant Difference ◽  
One Year ◽  
Arthroscopic Rotator Cuff ◽  
Retrospective Comparative Study ◽  
Cuff Repair

ABSTRACT Objective: To investigate the safety and efficacy of allogeneic platelet-rich plasma (PRP) in rotator cuff repair . Methods: Seventeen patients with a full-thickness rotator cuff tear were included. Ten patients underwent arthroscopic rotator cuff repair with allogeneic, and seven patients with autologous PRP. Three PRP gels in a volume 3 ml each were applied between the torn end and the greater tuberosity. Clinical outcomes were assessed preoperatively and at a minimum of 2 years after surgery. Structural outcomes were evaluated with the presence of retear and the change of the cross-sectional area (ACT) of the supraspinatus . Results: Allogeneic PRP did not cause any adverse events during the follow-up period. There was no significant difference in the clinical outcome measures between the two groups (all p > 0.05). The retear rate was 33.3% and 25.0% in the allogeneic group and autologous group, respectively (p = 0.764). The change between the one-year postoperative and immediately postoperative ACT was not also significantly different between the two groups (p = 0.373) . Conclusion: Allogeneic PRP in arthroscopic rotator cuff did not cause any local or general complications and that has the efficacy comparable to autologous PRP with respect to the clinical and structural outcomes. Level of Evidence III, Retrospective Comparative Study.

scholarly journals Cross-sectional analysis of follow-up chest MRI and chest CT scans in patients previously affected by COVID-19

2021 ◽  
Author(s):  
Martina Pecoraro ◽  
Stefano Cipollari ◽  
Livia Marchitelli ◽  
Emanuele Messina ◽  
Maurizio Del Monte ◽  
...  
Keyword(s):  
Chest Ct ◽  
Ct Scans ◽  
Imaging Biomarker ◽  
Cross Sectional ◽  
Mri Scans ◽  
Magnetic Resonance Imaging Mri ◽  
Sectional Analysis ◽  
Ct And Mri ◽  
Interlobular Septal Thickening

Abstract Purpose The aim of the study was to prospectively evaluate the agreement between chest magnetic resonance imaging (MRI) and computed tomography (CT) and to assess the diagnostic performance of chest MRI relative to that of CT during the follow-up of patients recovered from coronavirus disease 2019. Materials and methods Fifty-two patients underwent both follow-up chest CT and MRI scans, evaluated for ground-glass opacities (GGOs), consolidation, interlobular septal thickening, fibrosis, pleural indentation, vessel enlargement, bronchiolar ectasia, and changes compared to prior CT scans. DWI/ADC was evaluated for signal abnormalities suspicious for inflammation. Agreement between CT and MRI was assessed with Cohen’s k and weighted k. Measures of diagnostic accuracy of MRI were calculated. Results The agreement between CT and MRI was almost perfect for consolidation (k = 1.00) and change from prior CT (k = 0.857); substantial for predominant pattern (k = 0.764) and interlobular septal thickening (k = 0.734); and poor for GGOs (k = 0.339), fibrosis (k = 0.224), pleural indentation (k = 0.231), and vessel enlargement (k = 0.339). Meanwhile, the sensitivity of MRI was high for GGOs (1.00), interlobular septal thickening (1.00), and consolidation (1.00) but poor for fibrotic changes (0.18), pleural indentation (0.23), and vessel enlargement (0.50) and the specificity was overall high. DWI was positive in 46.0% of cases. Conclusions The agreement between MRI and CT was overall good. MRI was very sensitive for GGOs, consolidation and interlobular septal thickening and overall specific for most findings. DWI could be a reputable imaging biomarker of inflammatory activity.

Imaging

2017 ◽  
Author(s):  
Robert Laureno
Keyword(s):  
Resonance Imaging ◽  
Cross Sectional ◽  
Advantages And Disadvantages ◽  
Mri Scans ◽  
Cross Sectional Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
Cellular Pathology ◽  
Brain And Spinal Cord ◽  
The Brain

This chapter on “Imaging” examines the relative advantages and disadvantages of computed tomography (CT) and magnetic resonance imaging (MRI) scans. It compares the modalities to each other and to gross neuropathology. For several decades, neurologists have been able to view cross-sectional images of living patients. Analogous to gross neuropathology, cross-sectional imaging displays the brain as an entire organ but does not demonstrate microscopic tissue or cellular pathology. By allowing practitioners to view sections of brain and spinal cord in vivo, imaging has improved neurologic practice and facilitated clinical research. This chapter deals with imaging topics that are important to the neurologist. The timing of scans, the effects of gravity, and the importance of plane of section are considered. Imaging is compared to gross neuropathology, and MRI is compared to CT.

scholarly journals Augmented latissimus dorsi transfer: initial results in patients with massive irreparable posterosuperior rotator cuff tears

2018 ◽  
Vol 11 (1_suppl) ◽  
pp. 59-67 ◽  
Author(s):  
Claudia C. Sidler-Maier ◽  
Jennifer A. Mutch ◽  
Martin Sidler ◽  
Dimitra Leivadiotou ◽  
Jubin B. Payandeh ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Latissimus Dorsi ◽  
Negative Impact ◽  
Case Series ◽  
Rotator Cuff Tears ◽  
Subscapularis Tendon ◽  
Level Of Evidence ◽  
Latissimus Dorsi Transfer ◽  
Cuff Repair

Background The surgical treatment of irreparable massive rotator cuff tears is challenging. The purpose of the present study was to report the initial outcomes after a modified latissimus dorsi transfer (LDT) augmented by acellular dermal allograft (ADA). Methods This retrospective study includes 24 patients managed with LDT using ADA augmentation as a bursal-sided onlay between March 2009 and December 2015. Results All patients were men with a mean age of 57 years (range 48 years to 70 years). Seven patients had a previously failed rotator cuff repair and ten patients presented with a deficient subscapularis tendon. At last follow-up (mean 27 months), there was a significant improvement in active forward flexion (mean increase 31°; p = 0.016), and abduction by 25° ( p = 0.059). The acromiohumeral distance remained stable and the failure rate was low (4%). Neither a history of previous rotator cuff surgery, nor the presence of a subscapularis tear had a negative impact on functional outcome. Conclusions In our cohort of patients, LDT augmented with ADA was a reasonable option for patients with previously failed rotator cuff repair, as well as in the subgroup of patients with a deficient subscapularis tendon. Level of evidence Level IV: Therapeutic study (case series)

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.

scholarly journals Patients With Diabetes Mellitus Have a Higher Risk of Tendon Retear After Arthroscopic Rotator Cuff Repair: A Meta-analysis

2020 ◽  
Vol 8 (11) ◽  
pp. 232596712096140 ◽  
Author(s):  
Chih-Kai Hong ◽  
Chao-Jui Chang ◽  
Fa-Chuan Kuan ◽  
Kai-Lan Hsu ◽  
Yueh Chen ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Systematic Review ◽  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
English Language ◽  
Arthroscopic Rotator Cuff Repair ◽  
Inclusion Criteria ◽  
Level Of Evidence ◽  
Arthroscopic Rotator Cuff ◽  
Cuff Repair

Background: Retear of a repaired rotator cuff tendon is a major issue for shoulder surgeons. It is possible that diabetes mellitus (DM) is associated with a greater risk of tendon retear after arthroscopic rotator cuff repair. Purpose: To determine whether patients with DM have a higher tendon retear risk after arthroscopic rotator cuff repair. Study Design: Systematic review; Level of evidence, 4. Methods: A systematic review was conducted following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines using the Web of Science, PubMed, and Embase databases. Inclusion criteria were articles written in the English language that included patients undergoing arthroscopic rotator cuff repair surgeries, reported the numbers of patients with and those without DM, and reported the number of rotator cuff retears. Data relevant to this study were extracted and statistically analyzed. Random-effects models were used to generate pooled odds ratio estimates and CIs. Results: A total of 160 studies were identified from the initial search, and 5 of them met the inclusion criteria. A total of 1065 patients (207 patients with DM and 858 patients without DM) were included. The pooled results showed that the patients in the DM group had a significantly higher tendon retear risk than did those in the non-DM group (relative risk, 2.25; 95% CI, 1.14-4.45; P = .02). Conclusion: Patients with DM have a 2.25 times higher risk of tendon retear after arthroscopic rotator cuff repair compared with patients without DM.

Progression of long head of the biceps brachii tendon abnormality on magnetic resonance imaging after rotator cuff repair

2021 ◽  
pp. 20210366
Author(s):  
Seung Eun Lee ◽  
Joon-Yong Jung ◽  
So-Yeon Lee ◽  
Hyerim Park
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Fatty Degeneration ◽  
Postoperative Mri ◽  
Shoulder Joints ◽  
Long Term Follow Up ◽  
Long Head ◽  
Cuff Repair

Objectives To correlate the deterioration of preserved long head of biceps tendon (LHB) after rotator cuff repair with preoperative and postoperative MRI factors. Methods Total of 209 shoulder joints (F:M = 145:64; mean age 57.4 years) which underwent rotator cuff repair and at least two postoperative MRI scans over 10 months after surgery were included. LHB integrity was graded with a five point severity scale. LHB deterioration was defined by increased composite score of integrity and extent score between the preoperative and second postoperative MRI. For preoperative and postoperative MRI factors, size and location of superior cuff -supraspinatus and infraspinatus- and subscapularis tears, fatty degeneration of rotator cuff, preoperative LHB status, subluxation of LHB, superior labral tear, acromion type, repaired rotator cuff status, postoperative capsulitis and acromioplasty state were assessed. Logistic regression was used to evaluate the association between LHB deterioration and aforementioned factors. Same analysis was conducted for 62 shoulder joints with a long-term follow-up MRI. Results Of the 209 shoulders, 49.3% (n = 103) showed LHB deterioration on short-term follow-up MRI. In long-term follow-up subgroup, 32 LHBs were further deteriorated. In multivariate analysis, fatty degeneration of superior cuff showed significant association with LHB deterioration in both short-term (p = .04, p = .007) and long-term subgroups (p = .004, p = .005) among preoperative and postoperative factors, respectively. Conclusions Degree of fatty degeneration in superior cuff is associated with LHB deterioration on postoperative MRI. Advances in knowledge Our results support that tenotomy or tenodesis of LHB should be considered during rotator cuff repair, especially in patients with advanced fatty degeneration of rotator cuff.

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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