Comparison of Clinical and Radiological Results in the Arthroscopic Repair of Full-Thickness Rotator Cuff Tears With and Without the Anterior Attachment of the Rotator Cable

2017 ◽  
Vol 45 (11) ◽  
pp. 2532-2539 ◽  
Author(s):  
Nam Su Cho ◽  
Seong Cheol Moon ◽  
Se Jung Hong ◽  
Seong Hae Bae ◽  
Yong Girl Rhee
Keyword(s):  
Rotator Cuff ◽  
Supraspinatus Tendon ◽  
Fatty Degeneration ◽  
Rotator Cuff Tears ◽  
Rotator Cable ◽  
The Mean ◽  
Arthroscopic Rotator Cuff ◽  
Cuff Repair ◽  
Retear Rate

Background: The anterior rotator cable is critical in force transmission of the rotator cuff. However, few clinical studies have examined the correlation between the integrity of the anterior supraspinatus tendon and surgical outcomes in patients with rotator cuff tears. Purpose: To compare the clinical and structural outcomes of the arthroscopic repair of full-thickness rotator cuff tears with and without anterior disruption of the supraspinatus tendon. Study Design: Cohort study; Level of evidence, 3. Methods: One hundred eighty-one shoulders available for magnetic resonance imaging (MRI) at least 6 months after arthroscopic rotator cuff repair, with a minimum 1-year follow-up, were enrolled. The anterior attachment of the rotator cable was disrupted in 113 shoulders (group A) and intact in 68 shoulders (group B). The mean age at the time of surgery in groups A and B was 59.6 and 59.2 years, respectively, and the mean follow-up period was 24.2 and 25.1 months, respectively. Results: There were statistically significant differences in the preoperative tear size and pattern and muscle fatty degeneration between the 2 groups ( P = .004, P = .008, and P < .001, respectively). At final follow-up, the mean visual analog scale (VAS) for pain score during motion was 1.31 ± 0.98 and 1.24 ± 0.90 in groups A and B, respectively ( P = .587). The mean Constant score was 77.5 ± 11.2 and 78.0 ± 11.9 points in groups A and B, respectively ( P = .875). The mean University of California, Los Angeles score was 30.5 ± 4.1 and 31.0 ± 3.0 points in groups A and B, respectively ( P = .652). In assessing the repair integrity on postoperative MRI, the retear rate was 23.9% and 14.7% in groups A and B, respectively ( P = .029). Conclusion: Irrespective of involvement in the anterior attachment of the rotator cable, the mean 24-month follow-up demonstrated excellent pain relief and improvement in the ability to perform activities of daily living after arthroscopic rotator cuff repair. However, tears with anterior disruption of the rotator cable showed a significantly larger and more complex tear pattern and more advanced fatty degeneration. Additionally, the retear rate was significantly higher in patients with a tear involving the anterior attachment of the rotator cable.

scholarly journals Superior Capsule Reconstruction for Reinforcement Before Arthroscopic Rotator Cuff Repair Improves Cuff Integrity

2018 ◽  
Vol 6 (3_suppl) ◽  
pp. 2325967118S0000
Author(s):  
Teruhisa Mihata ◽  
Thay Q. Lee ◽  
Kunimoto Fukunishi ◽  
Takeshi Kawakami ◽  
Yukitaka Fujisawa ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Humeral Head ◽  
Rotator Cuff Repair ◽  
Supraspinatus Tendon ◽  
Fatty Degeneration ◽  
Fascia Lata ◽  
Rotator Cuff Tears ◽  
Grade 3 ◽  
Arthroscopic Rotator Cuff ◽  
Cuff Repair

Objectives: We developed the superior capsule reconstruction (SCR) technique for surgical treatment of irreparable rotator cuff tears. In these patients, SCR restores shoulder stability and muscle balance, consequently improving shoulder function and relieving pain. In this study, we evaluated whether SCR for reinforcement before arthroscopic rotator cuff repair (ARCR) improves cuff integrity, especially in the case of severely degenerated supraspinatus tendon. Methods: A series of 32 consecutive patients (mean age, 69.0 years) with severely degenerated but reparable rotator cuff tears (medium size: 1-3 cm, and large size: 3-5 cm) underwent SCR using fascia lata autografts for reinforcement before ARCR. To determine the indications for SCR for reinforcement, the severity of degeneration in the torn supraspinatus tendon was assessed. We evaluated fatty degeneration in the muscle by using the Goutallier grade; we also scored retraction of the torn tendon (grade 0: no retraction; grade 1: torn edge on the greater tuberosity; grade 2: torn edge on the lateral half of the humeral head; grade 3: torn edge on the medial half of the humeral head; grade 4: torn edge on the glenoid) and tendon quality (grade 0: normal; grade 1: slightly thin, or slight fatty degeneration in the tendon part; grade 2: severely thin, or severe fatty degeneration in the tendon part; grade 3: severely thin, and severe fatty degeneration in the tendon part; grade 4: no tendon). In patients classified with grade 3 or 4 in at least two of these three categories, arthroscopic SCR was performed for reinforcement, after which the torn tendon was repaired over the fascia lata graft. To assess the benefit of SCR for reinforcement, the results from these 32 patients were compared with those after ARCR alone in 91 consecutive patients with medium (1-3 cm) to large (3-5 cm) rotator cuff tears (mean age, 66.7 years). Torn tendons were repaired by using double-row suture-bridges with and without SCR for reinforcement. By using t- and chi-square tests, we compared the American Shoulder and Elbow Surgeons (ASES) score, active shoulder range of motion (ROM), and cuff integrity (Sugaya MRI classification) between ARCR with and without SCR as well as between before surgery and at final follow-up (mean, 19 months; 12 to 40 months). A significant difference was defined as P < 0.05. Results: All 32 patients who underwent SCR before ARCR had no postoperative re-tear and demonstrated type I cuff integrity (sufficient thickness with homogeneously low intensity), whereas those treated with ARCR without SCR had a 5.5% incidence (5/91 all patients) of postoperative re-tear, and 22.1% (19/86 healed patients) had type II (partial high-intensity area) or III (insufficient thickness) cuff integrity. ASES score, active elevation, active external rotation, and active internal rotation increased significantly after ARCR both with and without SCR ( P < 0.001) (Table). Postoperative ASES score and active ROM did not differ significantly between ARCR with and without SCR, but the Goutallier grade of the supraspinatus was significantly higher for ARCR with SCR (mean, 2.8) than for ARCR alone (mean, 2.1) ( P < 0.0001). Conclusion: SCR for reinforcement prevented postoperative re-tear after ARCR and improved the quality of the repaired tendon on MRI. Furthermore, postoperative functional outcomes were similar in patients who underwent ARCR alone and those who also underwent SCR, even though degeneration of the torn tendons was greater in the latter group. [Table: see text]

scholarly journals Rotátorköpeny-szakadás után kialakult zsíros degeneráció változása az ín rekonstrukcióját követően, 65 éves kor után

2019 ◽  
Vol 160 (14) ◽  
pp. 533-539
Author(s):  
Imre Sallai ◽  
Márton Weidl ◽  
Attila Szatmári ◽  
Imre Antal ◽  
Gábor Skaliczki
Keyword(s):  
Rotator Cuff ◽  
Muscle Atrophy ◽  
Rotator Cuff Repair ◽  
Constant Score ◽  
Fatty Degeneration ◽  
Shoulder Function ◽  
Rotator Cuff Tears ◽  
Before And After ◽  
Cuff Repair

Abstract: Introduction: In the case of rotator cuff tears, the severity of the muscle atrophy and fatty degeneration has an effect on the success of the repair and on the functional outcome after surgery. Aim: The ability of regeneration reduces with ageing; therefore, the study examined the atrophy and the fatty degeneration after rotator cuff repair in patients over 65. Method: Eleven patients over 65 years of age were involved whose surgery was performed at the Department of Orthopaedics of Semmelweis University between 2012 and 2015. Their average age was 71.9 years and the average follow-up period was 39.9 months. Tear sizes were C1 in 3 cases, C2 in 3 cases, C3 in 4 cases, and C4 in 1 case. Each patient had magnetic resonance examination before and after the repair; the muscle atrophy and fatty degeneration were evaluated together with the type of the tear. Visual analogue scale and Constant score were used for the assessment of the pain and the shoulder function. Results: The average Constant score was 75 points. The occupancy ratio – referring to the severity of the atrophy – did not show significant improvement. The change in fatty degeneration and the atrophy were examined in different groups according to the size of the tears. In each group, the results showed progression. Conclusions: After rotator cuff repair in patients over 65, fatty degeneration and muscle atrophy also show progression. No significant relationship was found between the size of the tear and fatty degeneration or between the size of the tear and muscle atrophy. Orv Hetil. 2019; 160(14): 533–539.

Does an Injection of Adipose-Derived Mesenchymal Stem Cells Loaded in Fibrin Glue Influence Rotator Cuff Repair Outcomes? A Clinical and Magnetic Resonance Imaging Study

2017 ◽  
Vol 45 (9) ◽  
pp. 2010-2018 ◽  
Author(s):  
Yong Sang Kim ◽  
Chang Hun Sung ◽  
Sung Hoon Chung ◽  
Sang Joon Kwak ◽  
Yong Gon Koh
Keyword(s):  
Rotator Cuff ◽  
Fibrin Glue ◽  
Rotator Cuff Repair ◽  
Arthroscopic Rotator Cuff Repair ◽  
Conventional Group ◽  
Injection Group ◽  
The Mean ◽  
Arthroscopic Rotator Cuff ◽  
Cuff Repair

Background: The mesenchymal stem cell (MSC)–based tissue engineering approach has been developed to improve the treatment of rotator cuff tears. Hypothesis/Purpose: The purpose was to determine the effect of an injection of adipose-derived MSCs loaded in fibrin glue during arthroscopic rotator cuff repair on clinical outcomes and to evaluate its effect on structural integrity using magnetic resonance imaging (MRI). The hypothesis was that the application of adipose-derived MSCs would improve outcomes after the surgical repair of a rotator cuff tear. Study Design: Cohort study; Level of evidence, 3. Methods: Among 182 patients treated with arthroscopic surgery for a rotator cuff tear, 35 patients treated with arthroscopic rotator cuff repair alone (conventional group) were matched with 35 patients who underwent arthroscopic rotator cuff repair with an injection of adipose-derived MSCs loaded in fibrin glue (injection group) based on sex, age, and lesion size. Outcomes were assessed with respect to the visual analog scale (VAS) for pain, range of motion (ROM) (including forward flexion, external rotation at the side, and internal rotation at the back), and functional measures of the Constant score and University of California, Los Angeles (UCLA) shoulder rating scale. Repaired tendon structural integrity was assessed by using MRI at a minimum of 12 months after surgery, and the mean clinical follow-up was 28.8 ± 4.2 months in the conventional group and 28.3 ± 3.8 months in the injection group. Results: The mean VAS score at rest and during motion improved significantly in both groups after surgery. However, there were no significant differences between the groups at the final follow-up ( P = .256 and .776, respectively). Compared with preoperative measurements, forward flexion and external rotation at the side significantly improved at the final follow-up in both groups (all P < .05). However, no significant improvements in internal rotation at the back were observed in either group ( P = .625 and .834 for the conventional and injection groups, respectively). There were also no significant differences between the groups at the final follow-up for any of the 3 ROM positions (all P > .05). The mean Constant score and UCLA score improved significantly in both groups after surgery, but there were no significant differences between the groups at the final follow-up ( P = .634 and .302, respectively). MRI indicated a retear rate of 28.5% in the conventional group and 14.3% in the injection group ( P < .001). Conclusion: This study revealed that an injection of adipose-derived MSCs loaded in fibrin glue during rotator cuff repair could significantly improve structural outcomes in terms of the retear rate. There were, however, no clinical differences in the 28-month period of follow-up. Although still in the early stages of application, MSC augmentation of surgical rotator cuff repair appears useful for providing an adequate biological environment around the repair site.

scholarly journals Sex-Based Differences in Patient-Reported Outcomes After Arthroscopic Rotator Cuff Repair

2019 ◽  
Vol 7 (11) ◽  
pp. 232596711988195
Author(s):  
Stephen D. Daniels ◽  
Cory M. Stewart ◽  
Kirsten D. Garvey ◽  
Emily M. Brook ◽  
Laurence D. Higgins ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Patient Reported Outcomes ◽  
Surgical Techniques ◽  
Arthroscopic Rotator Cuff Repair ◽  
Patient Reported ◽  
The Mean ◽  
Arthroscopic Rotator Cuff ◽  
Cuff Repair

Background: Rotator cuff repair is one of the most common surgical procedures performed on the shoulder. Previous studies have indicated that pain and disability can vary significantly between patients with similarly appearing rotator cuff tears on diagnostic imaging. Prior literature has compared functional outcomes between operative and nonoperative treatments as well as variability in surgical techniques. However, few studies have examined postoperative outcomes based on patient factors such as sex. Purpose: To compare patient-reported outcomes after rotator cuff repair between men and women. Study Design: Cohort study; Level of evidence, 2. Methods: A total of 283 patients (153 male, 130 female) who underwent primary arthroscopic rotator cuff repair were included in this study; of those, 275 patients (97.2%) completed 1-year follow-up. Patient-reported pain visual analog scale (VAS), Veterans RAND 12-item Health Survey (VR-12 mental and physical components), American Shoulder and Elbow Surgeons (ASES), and Single Assessment Numeric Evaluation (SANE) scores were collected preoperatively and at 2 weeks, 6 weeks, 3 months, 6 months, and 1 year postoperatively using an electronic outcomes system. Results: Women reported higher VAS pain scores when compared with men preoperatively ( P < .01) and at 2 weeks ( P < .01), 6 weeks ( P < .01), and 3 months ( P = .02) postoperatively. Additionally, women experienced a greater overall change in the mean VAS score preoperatively when compared with 1 year postoperatively ( P < .01). The use of narcotic pain medication 2 weeks after surgery was greater in women ( P = .032). Women had significantly lower preoperative VR-12 mental scores ( P = .03) and experienced a greater increase in the mean VR-12 mental score preoperatively when compared with 1 year postoperatively ( P < .01). Men had higher ASES scores preoperatively ( P < .01) and at 3 months postoperatively ( P < .01). Women experienced a greater overall change in the ASES score preoperatively when compared with 1 year postoperatively ( P < .01). Conclusion: Women reported greater pain and decreased shoulder function compared with men during the initial 3 months after arthroscopic rotator cuff repair. There were no sex-based differences in patient-reported outcomes at 1-year follow-up. The results of this study indicate that there are sex-related differences in the early postoperative recovery of patients undergoing rotator cuff repair, contributing to postoperative expectations for both clinicians and patients alike.

scholarly journals Five Years Follow-up After Arthroscopic Rotator Cuff Repair Using Suture Bridge Technique: Evaluation of the Retear Rate and the Impairment of the Shoulder Function

2020 ◽  
Author(s):  
Zhang Sheng ◽  
Shi Huisheng ◽  
Liu Xiaohua ◽  
Wang Zheng ◽  
Li Yan ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Muscle Strength ◽  
Shoulder Function ◽  
Rotator Cuff Tears ◽  
Full Thickness ◽  
Suture Bridge ◽  
The Difference ◽  
Arthroscopic Rotator Cuff ◽  
Retear Rate

Abstract Purpose: To evaluate the retear rate after arthroscopic rotator cuff repair using a suture bridge (SB) technique for patients with full thickness rotator cuff tears and whether the non- healing cuff impaired the shoulder function.Methods: From January 2013 to January 2014, 92 patients in our institution underwent arthroscopic double-row suture bridge repair for the treatment of full-thickness rotator cuff tear 55 patients who have completed the 5 years follow-up were enrolled in this study. There were 36 female and 19 male patients, and the average age was 58.6 years (range, 41- 70 years). The tears were classified into small (<1 cm), medium (1-3 cm), large (3-5 cm), and massive (> 5 cm) according to the classification of DeOrio and Cofield. According to the intraoperative measurement, small tears were found in 5 shoulders (9%), medium tears in 19 shoulders (34.5%), large tears in 23 shoulders (41.8%), and massive tears in 8 shoulders (14.5%). The mean follow-up was 71.2 months (range, 66-78 months). Post-operative cuff integrity was evaluated with ultrasound (US) according to the published literature which was comparable to Sugaya MRI classification. Types I-III indicated cuff healing and types IV or V indicated retear. The retear patterns were divided into type 1 (failure at the original repair site) or 2 (failure around the medial row). At baseline and final follow-up, shoulder functional outcomes were measured using validated, shoulder-specific outcome scores, including the Constant-Murley score (CS) and the American Shoulder and Elbow Score (ASES). The difference in abduction muscle strength was also evaluated between the integrity and the retear group.Results: At final follow-up, the rotator cuff was completely healed in 45 of the 55 shoulders. There were recurrent tears in 10 shoulders, and the retear rate was 18.2%. The type 1 re- tear pattern was found in 4 shoulders (40%), and type 2 in 6 shoulders (60%). The Constant and ASES scores improved from 41.00 to 92.00, and from 41.33 to 88.00, respectively. The mean differences in shoulder scaption strength between the healing and the retear group were 1.1±0.82Kg and 3.0±0.88Kg respectively. The difference in muscle strength between the retear and the healing group was statistically significant (p<0.001).Conclusion: Arthroscopic suture bridge repair of full-thickness rotator cuff tears led to excellent improvement in shoulder function, but maintained a high retear rate. Although the retear group had inferior muscle strength, the patients were still satisfied, and shoulder function was improved due to pain relief. Whether such changes in muscle strength impair patients' long-term quality of life and shoulder function remains to be discussed.Level of evidence IV

scholarly journals Long-term Follow-up of Extensive Peri-anchor (Poly-L/D-lactic Acid) Cyst Formation after Arthroscopic Rotator Cuff Repair: A Case Report

2019 ◽  
Vol 22 (2) ◽  
pp. 100-105
Author(s):  
Jong-Ho Kim ◽  
Jong-Ick Kim ◽  
Hyo-Jin Lee ◽  
Dong-Jin Kim ◽  
Gwang Young Sung ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Cyst Formation ◽  
Arthroscopic Rotator Cuff Repair ◽  
Rotator Cuff Tears ◽  
Long Term Follow Up ◽  
Arthroscopic Rotator Cuff ◽  
Cuff Repair

Suture anchors are commonly used in shoulder surgeries, especially for rotator cuff tears. Peri-anchor cyst formation, however, is sometimes detected on follow-up radiologic image after surgery. The purpose of this report is to discuss the case of a patient who presented with regression of extensive peri-anchor cyst on postoperative 4-year follow-up magnetic resonance imaging and had good clinical outcome despite peri-anchor cyst formation after arthroscopic rotator cuff repair.

scholarly journals Will Preoperative Atrophy and Fatty Degeneration of the Shoulder Muscles Improve after Rotator Cuff Repair in Patients with Massive Rotator Cuff Tears?

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Hiroshi Yamaguchi ◽  
Naoki Suenaga ◽  
Naomi Oizumi ◽  
Yoshihiro Hosokawa ◽  
Fuminori Kanaya
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Fatty Degeneration ◽  
Rotator Cuff Tears ◽  
Massive Rotator Cuff Tear ◽  
Cuff Tear ◽  
Before And After ◽  
Magnetic Resonance Imaging Mri ◽  
Cuff Repair ◽  
Retear Rate

Recently, retear rate after repair for massive cuff tear have been improved through devised suture techniques. However, reported retear rate is relevant to preoperative atrophy and fatty degeneration. The purpose of this study was to investigate whether preoperative atrophy and fatty degeneration of rotator cuff muscles improve by successful repair. Twenty-four patients with massive rotator cuff tear were evaluated on the recovery of atrophy and fatty degeneration of supraspinatus and infraspinatus muscle after surgery. Atrophy was classified by the occupation ratio and fatty degeneration by modified Goutallier's classification. Both were assessed on magnetic resonance imaging (MRI) before and after the operation. When the cuff was well repaired, improvement of the atrophy and fatty degeneration were observed in a half and a one-fourth of the cases, respectively. In retear cases, however, atrophy and fatty degeneration became worse. Improvement of atrophy and fatty degeneration of the rotator cuff muscles may be expected in the cases with successful achievement of rotator cuff repair for large and massive tear.

scholarly journals Conservative versus accelerated rehabilitation after rotator cuff repair: a systematic review and meta-analysis

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Umile Giuseppe Longo ◽  
Laura Risi Ambrogioni ◽  
Alessandra Berton ◽  
Vincenzo Candela ◽  
Filippo Migliorini ◽  
...  
Keyword(s):  
Systematic Review ◽  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
External Rotation ◽  
Meta Analysis ◽  
Conservative Group ◽  
Arthroscopic Rotator Cuff ◽  
Cuff Repair ◽  
Retear Rate

Abstract Background The purpose of this systematic review and meta-analysis is to compare the conservative and accelerated rehabilitation protocols in patients who underwent arthroscopic rotator cuff repair in terms of clinical outcomes and range of motions at 3, 6, 12, and 24-month follow-up. Methods According to PRISMA guidelines, a systematic review of the literature was performed. For each included article, the following data has been extracted: authors, year, study design, level of evidence, demographic characteristics, follow-up, clinical outcomes, range of motions, and retear events. A meta-analysis was performed to compare accelerated versus conservative rehabilitation protocols after arthroscopic rotator cuff repair. The retear rate, postoperative Constant-Murley score and range of motions at 3, 6, 12, and 24 months of follow-up were the outcomes measured. Results The search strategy yielded 16 level I-II clinical studies. A total of 1424 patients, with 732 patients and 692 in the accelerated and conservative group, were included. The average age (mean ± standard deviation) was 56.1 ± 8.7 and 56.6 ± 9 in the accelerated and conservative group. The mean follow-up was 12.5 months, ranging from 2 to 24 months. The meta-analysis showed no statistically significant differences in terms of retear rate between the groups (P = 0.29). The superiority of the accelerated group was demonstrated in terms of external rotation (P < 0.05) at 3-month follow-up; in terms of forward elevation, external rotation, abduction (P < 0.05), but not in terms of Constant-Murley score at 6-month follow-up; in terms of forward elevation (P < 0.05) at 12-month follow-up. No significant differences between the two group were highlighted at 24-month follow-up. Conclusions No statistically significant differences in the retear rate among the accelerated and conservative group have been demonstrated. On the other hand, statistically and clinically significant differences were found in terms of external rotation at 3 and 6 months of follow-up in favour of the accelerated group. However, no differences between the two groups were detected at 24 months follow-up.

Arthroscopic Rotator Cuff Repair With Graft Augmentation of 3-Dimensional Biological Collagen for Moderate to Large Tears: A Randomized Controlled Study

2018 ◽  
Vol 46 (6) ◽  
pp. 1424-1431 ◽  
Author(s):  
You-Zhi Cai ◽  
Chi Zhang ◽  
Ri-Long Jin ◽  
Tong Shen ◽  
Peng-Cheng Gu ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Tears ◽  
Controlled Study ◽  
Control Group ◽  
Study Group ◽  
Randomized Controlled ◽  
3D Collagen ◽  
Cuff Repair ◽  
Retear Rate

Background: Due to the highly organized tissue and avascular nature of the rotator cuff, rotator cuff tears have limited ability to heal after the tendon is reinserted directly on the greater tubercle of the humerus. Consequently, retears are among the most common complications after rotator cuff repair. Augmentation of rotator cuff repairs with patches has been an active area of research in recent years to reduce retear rate. Hypothesis: Graft augmentation with 3D collagen could prevent retears of the repaired tendon and improve tendon-bone healing in moderate to large rotator cuff tears. Study Design: Randomized controlled study; Level of evidence, 2. Methods: A prospective, randomized controlled study was performed in a consecutive series of 112 patients age 50 to 85 years who underwent rotator cuff repair with the suture-bridge technique (58 patients, control group) or the suture-bridge technique augmented with 3-dimensional (3D) collagen (54 patients, study group). All patients were followed for 28.2 months (range, 24-36 months). Visual analog scale score for pain, University of California Los Angeles (UCLA) shoulder score, and Constant score were determined. Magnetic resonance imaging was performed pre- and postoperatively (at a minimum of 24 months) to evaluate the integrity of the rotator cuff and the retear rate of the repaired tendon. Three patients in each group had biopsies at nearly 24 months after surgery with histological assessment and transmission electron microscopy. Results: A total of 104 patients completed the final follow-up. At the 12-month follow-up, the UCLA shoulder score was 28.1 ± 1.9 in the study group, which was significantly better than that in the control group (26.9 ± 2.1, P = .002). The Constant score was also significantly better in the study group (87.1 ± 3.2) than in the control group (84.9 ± 4.2, P = .003). However, at the final follow-up, no significant differences were found in the UCLA shoulder scores (29.4 ± 1.9 in the control group and 30.0 ± 1.6 in the study group, P = .052) or Constant scores (89.9 ± 3.2 in the control group and 90.8 ± 3.5 in the study group, P = .18). In terms of structural integrity, more patients in the study group had a favorable type I retear grade (18/51) than in the control group (10/53) ( P = .06). The postoperative retear rate was 34.0% in the control group and 13.7% in the study group, thus indicating a significantly lower retear rate in the study group ( P = .02). Biopsy specimens of the tendon-bone interface in 6 patients revealed more bone formation and more aligned fibers with larger diameters in the study group than in the control group. No intraoperative or postoperative complications were noted in either group. Conclusion: 3D collagen augmentation could provide effective treatment of moderate to large rotator cuff tears, providing substantial functional improvement, and could reduce the retear rate. This technique could also promote new tendon-bone formation, thus exerting a prominent effect on tendon-bone healing.

scholarly journals Arthroscopic Rotator Cuff Repair With Muscle Advancement and Artificial Biodegradable Sheet Reinforcement for Massive Rotator Cuff Tears

2020 ◽  
Vol 8 (10) ◽  
pp. 232596712096016
Author(s):  
Shin Yokoya ◽  
Yohei Harada ◽  
Hiroshi Negi ◽  
Ryosuke Matsushita ◽  
Norimasa Matsubara ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Failure Rate ◽  
Rotator Cuff Tears ◽  
Control Group ◽  
Study Group ◽  
Massive Rotator Cuff Tears ◽  
Arthroscopic Rotator Cuff ◽  
Cuff Repair ◽  
Isometric Muscle

Background: Because high failure rates have frequently been reported after arthroscopic rotator cuff repair (ARCR) of massive rotator cuff tears (mRCTs), we introduced the technique of ARCR with supraspinatus and infraspinatus muscle advancement (MA). However, for cases where the original footprint cannot be completely covered, additional surgery using an approved artificial biomaterial is performed. Purpose: To investigate the postoperative clinical outcomes and failure rate after MA-ARCR, with and without our reinforcement technique. Study Design: Cohort study; Level of evidence, 3. Methods: A total of 74 patients (mean ± SD age, 68.7 ± 7.7 years) diagnosed with mRCT with a minimum postoperative follow-up of 2 years were included in the current study. Of these patients, 47 underwent MA-ARCR with polyglycolic acid (PGA) sheet reinforcement (study group), and 27 patients underwent MA-ARCR alone (control group). PGA reinforcement was performed when full coverage of the footprint could not be achieved by MA alone, but where the latter was possible, reinforcement was not required. Thus, the study group had significantly worse muscle quality than the control group ( P < .05). The pre- and postoperative range of motion (ROM), isometric muscle strength, acromiohumeral interval, and clinical outcomes were evaluated and compared between these 2 groups. Cuff integrity during the last follow-up period was assessed with magnetic resonance imaging, and the failure rate was calculated. In addition, the postoperative foreign body reaction was investigated in the study group. Results: In both groups, significant postoperative improvements were seen in acromiohumeral interval, clinical scores, ROM in anterior flexion, and isometric muscle strength in abduction, external rotation, and internal rotation ( P < .001 for all). The failure rate of the study group was 12.8% (6 patients) and that of the control group was 25.9% (7 patients). No significant differences were noted between the 2 groups on any of the data findings, even regarding the failure rate. Foreign body reactions in the early period were found in 3 patients, although these spontaneously disappeared within 3 months. Conclusion: Patients who underwent PGA patch reinforcement for MA-ARCR when the footprint could not be completely covered had clinical results similar to isolated MA-ARCR when the footprint could be covered. Both procedures resulted in significant improvement in symptoms and function compared with preoperatively.

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