scholarly journals Relationship of the Sagittal Extent of Rotator Cuff Tears to the Grade of Fatty Degeneration of the Rotator Cuff Muscles

1970 ◽  
Vol 14 (2) ◽  
pp. 159-164 ◽  
Author(s):  
Joong Bae Seo ◽  
Myung Ho Kim ◽  
Je Min Yi
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Tear ◽  
Fatty Degeneration ◽  
Rotator Cuff Tears ◽  
Cuff Tear ◽  
Anteroposterior Diameter ◽  
Shoulder Mri ◽  
Group 5 ◽  
Group 2 ◽  
Tear Size

PURPOSE: To investigate the relationship between the size of a rotator cuff tear and the grade of fatty degeneration of the supraspinatus and infraspinatus muscles.MATERIALS AND METHODS: From a database of 541 patients who underwent a shoulder MRI between September 2004 and September 2010, we enrolled 148 patients that had a full-thickness rotator cuff tear. The anteroposterior diameter of the tear was measured in sagittal views on an MRI. The patients were divided into 6 groups reflecting the anteroposterior diameter: group 1 (a width of <10 mm), group 2 (10 mm< or =width<15 mm), group 3 (15 mm< or =width<20 mm), group 4 (20 mm< or =width<25 mm), group 5 (25 mm< or =width<30 mm) and group 6 (a width<30 mm). Fatty degeneration was rated according to Goutallier et al.RESULTS: Fatty degeneration in the supraspinatus and infraspinatus muscles increased with the severity of the rotator cuff tear. The supraspinatus fatty degeneration increased prominently as the tear size increased from 15~19 mm to 20~24 mm and from 25~29 mm to over 30 mm. The infraspinatus fatty degeneration increased prominently as the tear size increased from 25~29 mm to over 30 mm. Seventeen patients had tear widths under 10 mm and 8 patients among them had fatty degeneration of the infraspinatus.CONCLUSION: Fatty degeneration in supraspinatus and infraspinatus muscles increases prominently at specific tear sizes. The presence of tears under 10 mm with infraspinatus fatty degeneration indicates that the infraspinatus tendon may have an anatomical or functional effect even in small tears.

scholarly journals Comparison of Clinical and Anatomical Outcomes between Delaminated Rotator Cuff Tear and Single Layer Rotator Cuff Tear

2018 ◽  
Vol 21 (4) ◽  
pp. 207-212 ◽  
Author(s):  
Jin Woo Park ◽  
Sung Hoon Moon ◽  
Jun Hee Lee
Keyword(s):  
Rotator Cuff ◽  
Clinical Outcomes ◽  
Rotator Cuff Tear ◽  
Muscle Atrophy ◽  
Single Layer ◽  
Fatty Degeneration ◽  
Rotator Cuff Tears ◽  
Cuff Tear ◽  
Group 2 ◽  
Group 1

BACKGROUND: Delaminated rotator cuff tear is known to be a degenerative tear having a negative prognostic effect. This study undertook to compare the anatomical and clinical outcomes of delaminated tears and single layer tears.METHODS: Totally, 175 patients with medium to large rotator cuff tears enrolled for the study were divided into 2 groups, based on the tear pathology: single layer tear (group 1) and delaminated tear (group 2). Preoperatively, length of the remnant tendon, muscle atrophy of supraspinatus (SS), and fatty degeneration of SS and infraspinatus (IS) muscles were assessed on magnetic resonance imaging (MRI). For follow-up, the repair integrity of the rotator cuff was evaluated by ultrasonography. Clinical outcomes were assessed by evaluating the Constant score (CS) and Korean Shoulder Score (KSS).RESULTS: Retears were detected in 6 cases of group 1 (6.5%) and 11 cases of group 2 (13.3%). Although higher in group 2, the retear rate was significantly not different (p=0.133). Preoperative MRI revealed length of remnant tendon to be 15.46 ± 3.60 mm and 14.17 ± 3.16 mm (p=0.013), and muscle atrophy of SS (occupation ratio) was 60.54 ± 13.15 and 56.55 ± 12.88 (p=0.045), in group 1 and group 2, respectively. Fatty degeneration of SS and IS in both groups had no significant differences. Postoperatively, no significant differences were observed for CS and KSS values between the groups.CONCLUSIONS: Delaminated rotator cuff tears showed shorter remnant tendon length and higher muscle atrophy that correlate to a negative prognosis. These prognostic effects should be considered during delaminated rotator cuff tear treatment.

scholarly journals Clinical Outcomes of Arthroscopic Repair for Large or Massive Rotator Cuff Tear with Delamination: Comparison of Three Suture-Bridge Technique

2021 ◽  
Author(s):  
Atsushi Okubo ◽  
Tadahiko Yotsumoto ◽  
Nobuyoshi Watanabe ◽  
Teruyoshi Kajikawa ◽  
Shun Nakajima ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Clinical Outcomes ◽  
Double Layer ◽  
Rotator Cuff Tear ◽  
Fatty Degeneration ◽  
Rotator Cuff Tears ◽  
Suture Bridge ◽  
Cuff Tear ◽  
Massive Rotator Cuff Tears ◽  
The Mean

Abstract Background: Rotator cuff tear with delamination is considered as a risk factor for postoperative retear after rotator cuff repair. The purpose of this study was to compare clinical outcomes between 3 repair procedures for large or massive rotator cuff tears with delamination: conventional en masse suture bridge (EMSB), double-layer suture bridge (DLSB), and combination of double-layer suture bridge and modified Debyere-Patte (DLSB+DP) methods.Methods: A total of 53 shoulders of 52 patients who had large or massive rotator cuff tears with delamination were included. The patients were categorized into 3 groups: EMSB group comprised 18 patients, DLSB group comprised 24 shoulders of 23 patients, and DLSB+DP group comprised 11 patients. DP was applied for cases in which the rotator cuff was unable to be covered up to the footprint even though it was sufficiently mobilized. The mean postoperative follow-up period was 34.6 months (range, 24-72 months). Pre- and postoperative evaluations included the Constant scores and range of motion (ROM). Tendon integrity according to Sugaya classification, and fatty degeneration were also evaluated by magnetic resonance images (MRI).Results: The ROM significantly improved after the operation in all groups. Mean constant scores significantly improved (from 45.5±14.3 to 77.4±13.6, in the EMSB, from 45.5±11.6 to 87.6±11.4 in the DLSB, and from 46.3±11.2 to , and 88.0±10.5 in the DLSB+DP). Significant differences were noted in the postoperative Constant score (p<0.05: DLSB vs. EMSB , and p<0.05: DLSB+DP vs. EMSB)． The Constant pain score was better in the DLSB+DP than in the EMSB group. The mean pre-operative global fatty degeneration index was 1.52 in the EMSB group, 1.80 in the DLSB group, and 2.28 in the DLSB+DP group. Retear occurred in 27.8% in the EMSB group, 12.5% in the DLSB group, and 9.1% in the DLSB+DP group. Conclusions: Comparison of 3 groups demonstrated that DLSB and DLSB+DP achieved better clinical outcome than EMSB. DLSB+DP is useful for large or massive rotator cuff tears with severe fatty degeneration or for cases where presence of excessive tension is anticipated when repairing the torn cuff.

scholarly journals Rotator Cuff Tear Pain and Tear Size and Scapulohumeral Rhythm

2009 ◽  
Vol 44 (2) ◽  
pp. 148-159 ◽  
Author(s):  
Jason S. Scibek ◽  
James E. Carpenter ◽  
Richard E. Hughes
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Tear ◽  
The Body ◽  
Rotator Cuff Tears ◽  
Full Thickness ◽  
Scapular Kinematics ◽  
Cuff Tear ◽  
Before And After ◽  
Lidocaine Injection ◽  
Tear Size

Abstract Context: The body of knowledge concerning shoulder kinematics in patients with rotator cuff tears is increasing. However, the level of understanding regarding how pain and tear size affect these kinematic patterns is minimal. Objective: To identify relationships between pain associated with a full-thickness rotator cuff tear, tear size, and scapulohumeral rhythm (SHR) and to determine whether pain and tear size serve as predictors of SHR. Design: A test-retest design was used to quantify pain and SHR before and after a subacromial lidocaine injection. Correlation and multivariate analyses were used to identify relationships among pain, tear size, and SHR. Setting: Orthopaedic biomechanics research laboratory. Patients or Other Participants: Fifteen patients (age range, 40–75 years) with diagnosed full-thickness rotator cuff tears participated. They were experiencing pain at the time of testing. Intervention(s): Shoulder kinematic data were collected with an electromagnetic tracking system before and after the patient received a lidocaine injection. Main Outcome Measure(s): Pain was rated using a visual analog scale. Three-dimensional scapular kinematics and glenohumeral elevation were assessed. Scapular kinematics included anterior-posterior tilt, medial-lateral tilt, and upward-downward rotation. A regression model was used to calculate SHR (scapular kinematics to glenohumeral elevation) for phases of humeral elevation and lowering. Results: Linear relationships were identified between initial pain scores and SHR and between tear size and SHR, representing an increased reliance on scapular motion with increasing pain and tear size. Pain was identified as an independent predictor of SHR, whereas significant findings for the effect of tear size on SHR and the interaction between pain and tear size were limited. Conclusions: We noted an increased reliance on scapular contributions to overall humeral elevation with increasing levels of pain and rotator cuff tear size. Pain associated with a rotator cuff tear serves as a primary contributor to the kinematic patterns exhibited in patients with rotator cuff tears.

scholarly journals Relationship of Posterior Decentering of the Humeral Head with Tear Size and Fatty Degeneration in Rotator Cuff Tear

2019 ◽  
Vol 22 (3) ◽  
pp. 121-127
Author(s):  
Jung-Han Kim ◽  
Hyeong-Won Seo
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Tear ◽  
Humeral Head ◽  
Fatty Degeneration ◽  
Subscapularis Tendon ◽  
Tendon Tear ◽  
Level Of Evidence ◽  
Cuff Tear ◽  
Subscapularis Tendon Tear ◽  
Tear Size

Background: Posterior decentering is not an uncommon finding on rotator cuff tear patients’ shoulder magnetic resonance imaging. No previous study has reported on the relationship between posterior decentering and rotator cuff tear.Methods: We assessed patients’ rotator cuff tear humeral head positions based on humeral?scapular alignment (HSA). Subjects were classified into centering and decentering groups based on a <2 mm or >2 mm HSA value, respectively. Differences in rotator cuff tear size, degree of tear, and fatty degeneration between the two groups were evaluated.Results: One hundred seventy-five patients (80 males, 95 females; mean age: 59.7 ± 6.5 years old) were selected as subjects (casecontrol study; level of evidence: 3). Tear size, degree of subscapularis tendon tear, and fatty degeneration of the supraspinatus, infraspinatus, and subscapularis muscles were significantly different between the two groups (<i>p</i><0.001, <i>p</i><0.001, <i>p</i><0.001).Conclusions: The occurrence of decentering was related to rotator cuff tear size, degree of subscapularis tendon tear, and fatty degeneration of the rotator cuff muscles.

scholarly journals Comparing Clinical Outcomes After Subacromial Spacer Insertion Versus Other Reconstruction Methods in the Treatment of Irreparable Massive Rotator Cuff Tears

2019 ◽  
Vol 7 (9) ◽  
pp. 232596711986960
Author(s):  
Joo Han Oh ◽  
Joo Hyun Park ◽  
Hyeon Jang Jeong ◽  
Sung-Min Rhee
Keyword(s):  
Rotator Cuff ◽  
Fatty Degeneration ◽  
Rotator Cuff Tears ◽  
Massive Rotator Cuff Tears ◽  
Reconstruction Methods ◽  
Functional Scores ◽  
Group 2 ◽  
Tear Size ◽  
Group 1

Background: Previous studies on subacromial spacer (SAS) insertion have been limited to case series that did not compare the effectiveness of this technique with other techniques. Hypothesis: Outcomes after SAS insertion for the treatment of irreparable massive rotator cuff tears (IMRCTs) will be similar to those of other techniques. Study Design: Cohort study; Level of evidence, 3. Methods: This retrospective study was based on data collected from patients who underwent correction of IMRCTs between January 2010 and October 2017. Group 1 patients (n = 17) received SAS insertion with or without partial repair; group 2 patients (n = 36) were treated with other techniques (isolated partial repairs or bridging grafts). Preoperative tear size and global fatty degeneration index values were evaluated. Range of motion, visual analog scale for pain, American Shoulder and Elbow Surgeons (ASES) score, Constant score, Simple Shoulder Test (SST), Disabilities of the Arm, Shoulder and Hand score, and acromiohumeral distance (AHD) were assessed preoperatively and at final follow-up at least 2 years after the surgery (range, 24-60 months). In both groups, ultrasonographic examination was performed at 3 and 6 months postoperatively, and magnetic resonance imaging (MRI) was performed at 1 year. Results: Tear size and preoperative global fatty degeneration index were not significantly different between the groups (all P > .05). There were no differences in functional scores between the groups at final follow-up (all P > .05). AHD was maintained at final follow-up in group 1 (mean ± SD: 6.2 ± 2.1 mm [postoperatively] vs 6.7 ± 2.3 mm [final follow-up]; P = .678), and there was no difference compared with group 2 (7.2 ± 3.2 mm; P = .244). Patients with retears in group 2 (23 of 36, 63.9%) had lower ASES ( P = .041) and SST ( P = .027) scores at final follow-up when compared with patients in group 1. Six patients (35.3%) in group 1 had partial repairs; these patients had better external rotation at 90° ( P = .047), better SST scores ( P = .036), and higher AHDs at final follow-up ( P = .046) than those in group 1 who had no repair. Three patients (50%) showed retears of partially repaired tendons on MRI. Of 13 patients (76.5%) in group 1 with postoperative MRI, 12 (92.3%) showed fibrotic tissue in the subacromial space not seen preoperatively. Conclusion: There was no difference in outcomes between SAS and the other reconstruction methods for treating IMRCTs. However, given the high retear rate associated with other techniques and poor functional outcomes after retear, SAS insertion could be a viable option for treating IMRCTs.

IMPACT OF PAIN ON SHOULDER ELEVATION VELOCITY IN PATIENTS WITH ROTATOR CUFF TEARS

2010 ◽  
Vol 13 (01) ◽  
pp. 23-33 ◽  
Author(s):  
Jason S. Scibek ◽  
Amy G. Mell ◽  
Brian K. Downie ◽  
Riann Palmieri-Smith ◽  
Richard E. Hughes
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Tear ◽  
Tracking System ◽  
Human Motion ◽  
Rotator Cuff Tears ◽  
Movement Velocity ◽  
Cuff Tear ◽  
Shoulder Movement ◽  
Tear Size ◽  
Shoulder Elevation

Pain is routinely implicated as a factor when considering impaired movement in injured populations. Movement velocity is often considered during the rehabilitation process; unfortunately our understanding of pain's impact on shoulder movement velocity in rotator cuff tear patients is less understood. Therefore, the purpose of this study was to test the hypothesis that there would be an increase in peak and mean shoulder elevation velocities following the decrease of shoulder pain in rotator cuff tear patients, regardless of tear size. Fifteen subjects with full-thickness rotator cuff tears (RCT) performed humeral elevation and lowering in three planes before and after receiving a lidocaine injection to relieve pain. Pain was assessed using a visual analog scale. Humeral elevation velocity data were collected using an electromagnetic tracking system. A significant reduction in pain (pre-injection 3.53 ± 1.99; post-injection 1.23 ± 1.43) resulted in significant increases in maximum and mean humeral elevation velocities. Mean shoulder elevation and lowering velocities increased 15.10 ± 2.45% while maximum shoulder movement velocities increased 12.77 ± 3.93%. Furthermore, no significant relationships were noted between tear size and movement velocity. These significant increases in movement velocity provide evidence to further support the notion that human motion can be inhibited by injury-associated pain, and that by reducing that pain through clinical interventions, human movement can be impacted in a positive fashion.

scholarly journals What is the relationship with rotator cuff tear size of the double row suture bridge transosseous equivalent repair technique?

2017 ◽  
Vol 5 (2_suppl2) ◽  
pp. 2325967117S0005
Author(s):  
Hakan Tırın ◽  
Murat Gülçek
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Tear ◽  
Rotator Cuff Tears ◽  
Double Row ◽  
Cuff Tear ◽  
Repair Technique ◽  
Significant Difference ◽  
Group 2 ◽  
Double Row Repair ◽  
Group 1

Background: Rotator cuff tears have an adverse effect on daily activities in personal disability and functional restriction. A few clinical studies have demonstrated the structural superiority of the double row technique. The aim of our study 3 cm below and the top of the rotator cuff tears and a double row repair technique with the results of the retrospectively our patients treated by comparing the results of double row repair techniques to understand the relationship between the tear size. Methods: In this retrospective study, and the data of patients who underwent arthroscopic rotator cuff repair in the years 2011-2014 were scanned as a single center. Inclusion criteria:1)3 cm above and below the rotator cuff tear preoperative identified by MRI imaging and confirmed by arthroscopy,2)which is operated by a double row repair techniques 3)do not benefit from conservative treatment 4)before patients are no operation history. Exclusion criteria: 1)partial tears, 2)irrepereabl tears, 3)arthritis in the shoulder x-ray, 4)are the follow-up of the patients over 2 years ago. In our study, patients under 3 cm (small and medium) and 3 cm above (large and massive) as we group. Tears under 3 cm was named as group 1, 3 cm above the tears were classified as group 2. 33 patients in group 1, 31 patients group 2 were classified. The patients preoperatively, postoperatively at 6 months, 12 months and finally at 24 months VAS scores, joint ROMs, Constant and UCLA scores were evaluated. At the end of 2 years, patients MRI taken as a result of rupture rates and functional outcomes were compared. Results: Between the groups; age, sex, side, AC joint pathology and the dominant limb with respect was found that no statistically significant difference (p>0.05). According to MRI results rupture rate of 33.3% in group 1, group 2 was found to be 19.4%. The comparison between groups; Constant score at all measurement values were found to be statistically significant difference (p<0.05). 3 cm below the rotator cuff tear time of four measurements was found to be higher than the constant score. The comparison between groups; VAS and UCLA scores in all measured time was found that no statistically significant difference (p>0.05). Conclusions: Double row repair technique is a safe surgical technique that can be applied regardless of the size of the tear. 3 cm above the rotator cuff tear in functional outcomes are worse, rupture rate is higher.

Diagnostic value of the axial view of magnetic resonance imaging to identify two-dimensional shapes of full-thickness rotator cuff tears

2020 ◽  
Vol 61 (11) ◽  
pp. 1545-1552
Author(s):  
Sung-Weon Jung ◽  
Jin-Woo Jin ◽  
Dong-Hee Kim ◽  
Hyeon-Soo Kim ◽  
Gwang-Eun Lee ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Rotator Cuff ◽  
Rotator Cuff Tear ◽  
Fatty Infiltration ◽  
Rotator Cuff Tears ◽  
Two Dimensional ◽  
Resonance Imaging ◽  
Cuff Tear ◽  
Tear Size

Background Coronal and sagittal views of magnetic resonance imaging (MRI) were used to determine rotator cuff tear size and fatty infiltration, but these images were not enough to identify the tear shape. Purpose To correlate the preoperative axial MRI views and arthroscopic surgical findings to identify the two-dimensional shapes in rotator cuff tears. Material and Methods This study included 166 patients who underwent arthroscopic repair between 2015 and 2018. Preoperative coronal, sagittal, and axial MRI views were evaluated for tear size and geographic configuration in axial sections, and the length and the width were measured and were matched with arthroscopic surgical views by lateral portals. Results The agreement of axial MRI views with the arthroscopic view was 88.0% in crescent, 97.2% in longitudinal, 78.6% in massive, and 100% in rotator cuff tear arthropathy. The mean agreement rate of axial MRI views with arthroscopic view was 81.9%. Mean mediolateral and anteroposterior tear sizes on axial MRI were 16.68 mm and 19.33 mm, respectively. Mean mediolateral and anteroposterior tear sizes by arthroscopic view were 21.49 mm and 21.04 mm, respectively. Tear sizes by MRI axial images were 71.3% of arthroscopic view. SST/IST degenerative changes were noted in most patients with massive tears and rotator cuff arthropathy ( P = 0.001). Conclusion Rotator cuff tear shape on preoperative axial MRI view had close agreement (81.9%) with arthroscopic findings by lateral portal, and tear size by preoperative axial MRI views was 71.3% of that of arthroscopic view. Axial MRI views helped to predict the geometric tear shape of rotator cuff tears.

scholarly journals Magnetic resonance imaging analysis of rotator cuff tear after shoulder dislocation in a patient older than 40 years

2020 ◽  
Vol 23 (3) ◽  
pp. 144-151
Author(s):  
Jung-Han Kim ◽  
Jin-Woo Park ◽  
Si-Young Heo ◽  
Young-Min Noh
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Rotator Cuff ◽  
Rotator Cuff Tear ◽  
Shoulder Dislocation ◽  
Age Groups ◽  
Fatty Degeneration ◽  
Resonance Imaging ◽  
Cuff Tear ◽  
Tear Size

Background: This study was designed to evaluate characters of the rotator cuff tear (RCT) recognized after primary shoulder dislocation in patients older than 40. Methods: From 2008 to 2019, patients who visited two hospitals after dislocation were retrospectively reviewed. Inclusion criteria were patients over 40 who had dislocation, with magnetic resonance imaging (MRI) undergone. Exclusion criteria were patients who lost to follow-up, combined with any proximal humerus fracture, brachial plexus injury, and previous operation or dislocation history in the ipsilateral shoulder. Also patients who had only bankart or bony bakart lesion in MRI were excluded. We evaluated RCTs that were recognized by MRI after the primary shoulder dislocation with regard to tear size, degree, involved tendons, fatty degeneration, the age when the first dislocation occurred, and the duration until the MRI was evaluated after the dislocation. Results: Fifty-five RCTs were included. According to age groups, the tear size was increased in coronal and sagittal direction, the number of involved tendons was increased, and the degree of fatty degeneration was advanced in infraspinatus muscle. Thirty-two cases (58.2%) conducted MRI after 3 weeks from the first shoulder dislocation event. Conclusions: This group showed that the retraction size of the coronal plane was increased significantly and the fatty accumulation of the supraspinatus muscle had progressed significantly. Age is also a strong factor to affect the feature of RCT after the shoulder dislocation in patients over 40. And the delay of the MRI may deteriorate the degree of tear size and fatty degeneration.

scholarly journals Comparison of three suture-bridge techniques for large or massive rotator cuff tear with delamination

SICOT-J ◽  
2021 ◽  
Vol 7 ◽  
pp. 41
Author(s):  
Atsushi Okubo ◽  
Tadahiko Yotsumoto ◽  
Nobuyoshi Watanabe ◽  
Teruyoshi Kajikawa ◽  
Shun Nakajima ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Clinical Outcomes ◽  
Rotator Cuff Tear ◽  
Fatty Degeneration ◽  
Magnetic Resonance Images ◽  
Rotator Cuff Tears ◽  
Suture Bridge ◽  
Cuff Tear ◽  
Massive Rotator Cuff Tears ◽  
Constant Pain

Introduction: Rotator cuff tear with delamination is considered a risk factor for postoperative retear. The purpose of this study was to compare clinical outcomes between three repair procedures for large or massive rotator cuff tears with delamination: conventional en masse suture bridge (EMSB), double-layer suture bridge (DLSB), and the combination of DLSB with modified Debyere-Patte (DLSB + DP). Methods: 53 shoulders of 52 patients who had massive rotator cuff tears with delamination were categorized into three groups: EMSB (18 shoulders), DLSB (24 shoulders), and DLSB + DP (11 shoulders). The mean postoperative follow-up period was 34.6 months. Pre- and postoperative evaluations included a range of motion (ROM), Constant scores, global fatty degeneration (GFDI), and tendon integrity according to Sugaya’s classification by magnetic resonance images (MRI). Results: In all groups, ROM significantly improved after the procedures. Mean constant scores significantly improved: from 45.5 to 77.4 after EMSB, from 45.5 to 87.6 after DLSB, and from 46.3 to 88.0 after DLSB + DP. Significant differences were noted in postoperative Constant scores (p = 0.018: DLSB vs. EMSB, and p = 0.045: DLSB + DP vs. EMSB). The Constant pain scores were better for DLSB + DP than for EMSB (p = 0.012). Global fatty degeneration index (GFDI) with DLSB + DP was significantly higher than that for either EMSB or DLSB, indicating significant preoperative fatty degeneration for DLSB + DP. Retear occurred in 27.8% of the EMSB group, 12.5% of the DLSB group, and 9.1% of the DLSB + DP group. Discussion: Comparisons of the three groups demonstrated that DLSB and DLSB + DP achieved better clinical outcomes than EMSB for the repair of large or massive rotator cuff tears. DLSB + DP is useful for massive rotator cuff tears with severe fatty degeneration or for cases where the presence of excessive tension is anticipated when repairing the torn cuff.

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