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Gan K, Bi M, Zhou K, Xia C, Ding W, Ding S, Li J. Bridging repair reinforced with artificial ligament as an internal brace for irreparable massive rotator cuff tears. J Shoulder Elbow Surg 2024; 33:e322-e335. [PMID: 38072033 DOI: 10.1016/j.jse.2023.10.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 10/20/2023] [Accepted: 10/24/2023] [Indexed: 03/09/2024]
Abstract
BACKGROUND The irreparable massive rotator cuff tear (IMRCT) is challenging to manage. Although various surgical options have been proposed to treat IMRCTs, the optimal surgical technique remains controversial. Arthroscopic bridging patch repair is clinically used for treating IMRCTs, but the healing rate of the patch graft is negatively affected by superior shift of the humeral head. This study aimed to evaluate the clinical efficacy of artificial ligament as an internal brace (IB) reinforcing fascia lata autograft bridging repair (ABR) in the treatment of IMRCTs. METHODS The data of 50 patients with IMRCTs who underwent ABR reinforced with artificial ligament as an IB (ABR + IB) (internal brace group) or ABR alone (control group) were retrospectively evaluated preoperatively and at 2-year follow-up. Clinical outcomes were assessed based on the shoulder activity, of which the strength was measured using a 0-10 points manual muscle test scale, American Shoulder and Elbow Surgeons score, and visual analog scale for pain. Imaging outcomes were evaluated based on acromiohumeral distance (AHD), Hamada grade, Goutallier grade, and the status of fascia lata grafts as per radiographs or magnetic resonance imaging findings. RESULTS Both groups showed significantly better results in shoulder activity, American Shoulder and Elbow Surgeons score, visual analog scale score, and AHD at 2-year follow-up compared with preoperative levels (P < .001). Compared with the control group (n = 24), the internal brace group (n = 26) had better mean AHD (7.0 ± 1.4 mm vs. 5.9 ± 1.0 mm, P = .002), mean improvement in AHD (3.3 ± 1.5 mm vs. 2.0 ± 0.6 mm, P < .001), healing rate of autografts (92.3% vs. 54.2%, P = .002), and improvement rate of Hamada grade (73.1% vs. 41.7%, P = .025) at 2-year follow-up. No significant differences were found in active elevation, active external rotation, active internal rotation, abduction strength, external rotation strength, internal rotation strength, American Shoulder and Elbow Surgeons score, or visual analog scale between the 2 groups at 2-year follow-up. CONCLUSION Both the ABR + IB and ABR improved the postoperative short-term clinical and imaging outcomes in managing IMRCTs, the ABR + IB is statistically superior to ABR alone in terms of healing rate of the bridging graft, AHD, and Hamada grade at 2-year follow-up, while further clinical investigations with larger sample size and longer follow-ups are required to validate the clinical significance of this novel technique for IMRCTs.
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Affiliation(s)
- Kaifeng Gan
- Department of Orthopaedics, the Affiliated LiHuiLi Hospital of Ningbo University, Ningbo, Republic of China
| | - Mingguang Bi
- Department of Orthopaedics, the Affiliated LiHuiLi Hospital of Ningbo University, Ningbo, Republic of China
| | - Ke Zhou
- Department of Orthopaedics, the Affiliated LiHuiLi Hospital of Ningbo University, Ningbo, Republic of China
| | - Chenjie Xia
- Department of Orthopaedics, the Affiliated LiHuiLi Hospital of Ningbo University, Ningbo, Republic of China
| | - Wei Ding
- Department of Orthopaedics, the Affiliated LiHuiLi Hospital of Ningbo University, Ningbo, Republic of China
| | - Shaohua Ding
- Department of Orthopaedics, the Affiliated LiHuiLi Hospital of Ningbo University, Ningbo, Republic of China
| | - Jin Li
- Department of Orthopaedics, the Affiliated LiHuiLi Hospital of Ningbo University, Ningbo, Republic of China.
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Kanakamedala AC, Hinz M, Millett PJ. Editorial Commentary: Bridging Graft Techniques Improve Short-Term Outcomes for Irreparable Rotator Cuff Tear Repair. Arthroscopy 2024; 40:262-264. [PMID: 38296434 DOI: 10.1016/j.arthro.2023.10.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 10/31/2023] [Indexed: 02/08/2024]
Abstract
There is a growing need for nonarthroplasty treatment options for irreparable rotator cuff tears. Options include superior capsular reconstruction (SCR), tendon transfers, subacromial balloon spacer, bridge grafting, biological tuberoplasty, and partial rotator cuff repair with or without augmentation. In our experience, repair with marginal convergence techniques is superior to SCR; if there is enough tissue, repair is the preferred strategy. In an effort to improve outcomes after repair, there has been increased interest in the use of interposition or bridging graft (BG) techniques, in which an allograft or autograft is secured on the humerus laterally and to the remnant tendon medially. Interposition or bridging grafts can be used to supplement partial repair in an effort to replace the patient's own missing tissues, and restore the biomechanical force couple of the rotator cuff and create a humeral head-depressing spacer effect in the subacromial space. These techniques show promising results compared to superior capsular reconstruction. Various graft options for BG are available, including human dermal allograft, fascia lata autograft, and tenotomized biceps autograft. Multiple animal studies have demonstrated that interposition grafts can improve the biomechanical properties of the repair construct, and histological studies in animal models have shown evidence of tissue in-growth into the BG, which could lead to increased repair strength over time. Finally, recent studies suggest that a bridging graft may improve short-term outcomes compared to partial repair alone. It remains to be seen whether this difference is clinically meaningful and durable.
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Funakoshi T, Takahashi T, Murayama T, Miyamoto A, Koga R, Kusano H, Yamamoto Y. Arthroscopic superior capsule reconstruction augmentation using a semitendinosus autograft in massive reparable rotator cuff tears. JSES Int 2024; 8:32-40. [PMID: 38312265 PMCID: PMC10837716 DOI: 10.1016/j.jseint.2023.08.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024] Open
Abstract
Background Arthroscopic superior capsule reconstruction (SCR) augmentation is a viable treatment option for massive reparable cuff tears. This study aimed to retrospectively compare clinical and imaging outcomes of patients with reparable massive rotator cuff tears after arthroscopic rotator cuff repair (ARCR) with those after SCR augmentation using a semitendinosus autograft. Methods We retrospectively compared 50 patients with massive reparable rotator cuff tears who underwent ARCR and SCR augmentation (n = 25 each). Patients were clinically followed up for at least 2 years, and the American Shoulder and Elbow index, other patient-reported outcomes, active range of motion, and radiography and magnetic resonance imaging findings were assessed. Results At the final follow-up, both patient groups showed significant improvements in forward elevation in range of motion and visual analog scale scores. Improvements in the American Shoulder and Elbow scores in the SCR augmentation group were significantly superior to those in the ARCR group (48.3 and 28.9, P < .01). There was a significant difference in the retear rate between the SCR augmentation group and ARCR group (20% and 56%, respectively; P = .009). Conclusion Our study demonstrated that patient-reported outcomes and retear rates in patients who underwent SCR augmentation with rotator cuff repair for massive rotator cuff tears significantly improved compared with those in patients who underwent ARCR without augmentation. Augmentation with semitendinosus autografting during rotator cuff repair represents a solution for patients with massive reparable rotator cuff tears.
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Affiliation(s)
- Tadanao Funakoshi
- Keiyu Shoulder Surgery Center, Keiyu Orthopaedic Hospital, Tatebayashi, Japan
| | - Toru Takahashi
- Keiyu Shoulder Surgery Center, Keiyu Orthopaedic Hospital, Tatebayashi, Japan
| | - Toshiki Murayama
- Keiyu Shoulder Surgery Center, Keiyu Orthopaedic Hospital, Tatebayashi, Japan
| | - Azusa Miyamoto
- Keiyu Shoulder Surgery Center, Keiyu Orthopaedic Hospital, Tatebayashi, Japan
| | - Ryuji Koga
- Keiyu Shoulder Surgery Center, Keiyu Orthopaedic Hospital, Tatebayashi, Japan
| | - Hiroshi Kusano
- Keiyu Shoulder Surgery Center, Keiyu Orthopaedic Hospital, Tatebayashi, Japan
| | - Yuzuru Yamamoto
- Keiyu Shoulder Surgery Center, Keiyu Orthopaedic Hospital, Tatebayashi, Japan
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Wan RW, Luo ZW, Yang YM, Zhang HL, Chen JN, Chen SY, Shang XL. Long head of biceps tendon transposition for massive and irreparable rotator cuff tears: A systematic review and meta-analysis. World J Orthop 2023; 14:813-826. [DOI: 10.5312/wjo.v14.i11.813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/21/2023] [Accepted: 10/16/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Superior capsular reconstruction (SCR) with long head of biceps tendon (LHBT) transposition was developed to massive and irreparable rotator cuff tears (MIRCTs); however, the outcomes of this technique remain unclear.
AIM To perform a systematic review of biomechanical outcomes and a meta-analysis of clinical outcomes after LHBT transposition for MIRCTs.
METHODS We performed a systematic electronic database search on PubMed, EMBASE, and Cochrane Library. Studies of SCR with LHBT transposition were included according to the inclusion and exclusion criteria. Biomechanical studies were assessed for main results and conclusions. Included clinical studies were evaluated for quality of methodology. Data including study characteristics, cohort demographics, and outcomes were extracted. A meta-analysis was conducted of the clinical outcomes.
RESULTS According to our inclusion and exclusion criteria, a total of six biomechanical studies were identified and reported an overall improvement in subacromial contact pressures and prevention of superior humeral migration without limiting range of motion (ROM) after LHBT transposition for MIRCTs. A total of five clinical studies were included in the meta-analysis of LHBT transposition outcomes, consisting of 253 patients. The results indicated that compared to other surgical methods for MIRCTs, LHBT transposition had advantages of more significant improvement in ROM (forward flexion mean difference [MD] = 6.54, 95% confidence interval [CI]: 3.07-10.01; external rotation [MD = 5.15, 95%CI: 1.59-8.17]; the acromiohumeral distance [AHD] [MD = 0.90, 95%CI: 0.21-1.59]) and reducing retear rate (odds ratio = 0.27, 95%CI: 0.15-0.48). No significant difference in American Shoulder and Elbow Surgeons score, visual analogue scale score, and University of California at Los Angles score was demonstrated between these two groups for MIRCTs.
CONCLUSION In general, SCR with LHBT transposition was a reliable and economical technique for treating MIRCTs, both in terms of biomechanical and clinical outcomes, with comparable clinical outcomes, improved ROM, AHD, and reduced the retear rates compared to conventional SCR and other established techniques. More high-quality randomized controlled studies on the long-term outcomes of SCR with LHBT transposition are required to further assess.
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Affiliation(s)
- Ren-Wen Wan
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Zhi-Wen Luo
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Yi-Meng Yang
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Han-Li Zhang
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Jia-Ni Chen
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Shi-Yi Chen
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Xi-Liang Shang
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
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Yoon TH, Kim SJ, Choi YR, Oh JH, Chun YM. Comparison of the Goutallier Classification of Fatty Infiltration for the Subscapularis With a Novel Modified Classification. Orthop J Sports Med 2023; 11:23259671231174428. [PMID: 37576456 PMCID: PMC10416662 DOI: 10.1177/23259671231174428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 03/02/2023] [Indexed: 08/15/2023] Open
Abstract
Background Fatty infiltration in the subscapularis muscle extends to the upper portion of the muscle first and then to the lower portion only after some degree of fatty change has taken place in the upper region. Although the Goutallier classification is the most widely used method to categorize fatty infiltration, how to accurately and reliably determine the extent of infiltration is controversial. Purpose To examine a modified classification that is more reliable in (1) assessing fatty infiltration of the subscapularis muscle and (2) predicting the structural integrity of the repaired tendon by identifying cutoff points for retear. Study Design Cohort study (diagnosis); Level of evidence, 3. Methods This study retrospectively examined the records of 545 patients who underwent arthroscopic repair for a subscapularis tear. Two shoulder surgeons reviewed the preoperative magnetic resonance imaging scans of all enrolled patients and evaluated the fatty infiltration of the subscapularis muscle based on the original Goutallier classification, as well as a novel modified Goutallier classification designed to measure the proportion of fat and muscle in the upper and lower portions of the muscle separately. Intra- and interobserver agreement of the reviewers was calculated using κ statistics. Using receiver operating characteristic curve analysis, we determined the cutoff point for the particular fatty infiltration grade related to the occurrence of retear for each classification scheme. Results The κ values for interobserver reliability were 0.743 and 0.856 for the original and modified Goutallier classifications, respectively, with the modified classification having significantly higher reliability (Z = 4.064; P < .001). Cutoff points for the fatty infiltration grade associated with retear were 2.5 for the original Goutallier classification (sensitivity, 65.3%; specificity, 95.6%; accuracy, 87.8%) and 3.5 for the modified classification (sensitivity, 52.5%; specificity, 97.8%; accuracy, 89.7%). Conclusion In assessing fatty infiltration of the subscapularis muscle, the modified Goutallier classification showed higher reliability than the original Goutallier classification. The cutoff point for potential retear (grade 3.5) was at a point where the fatty infiltration extended to the lower portion of the subscapularis muscle.
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Affiliation(s)
- Tae-Hwan Yoon
- Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sung-Jae Kim
- Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yun-Rak Choi
- Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung-Hyun Oh
- Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yong-Min Chun
- Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
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Schanda JE, Eigenschink M, Laky B, Frank JK, Pauzenberger L, Anderl W, Heuberer PR. Comparison of Outcomes After Arthroscopic Superior Capsule Reconstruction Versus Arthroscopic Partial Repair or Arthroscopic Debridement for Irreparable Rotator Cuff Tears. Orthop J Sports Med 2023; 11:23259671231185182. [PMID: 37529527 PMCID: PMC10387798 DOI: 10.1177/23259671231185182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/13/2023] [Indexed: 08/03/2023] Open
Abstract
Background Arthroscopic superior capsule reconstruction (SCR), arthroscopic partial repair (PR), and arthroscopic debridement (DB) are valid treatment options for irreparable rotator cuff (RC) tears. Purpose/Hypothesis The purpose of this study was to compare clinical, functional, and radiological outcomes of arthroscopic SCR with arthroscopic PR and arthroscopic DB in patients with irreparable posterosuperior RC tears. It was hypothesized that SCR would lead to superior clinical and functional outcomes compared with PR or DB. Study Design Cohort study; Level of evidence, 3. Methods Clinical and functional outcomes of this single-center retrospective study included range of motion, strength, and the age- and sex-adjusted Constant-Murley score. Patient-reported outcome measures (PROMs) involved the quick Disabilities of the Arm, Shoulder and Hand score, the Subjective Shoulder Value, and the visual analog scale for pain. Graft and repaired tendon integrity was evaluated by magnetic resonance imaging (MRI) at 12 months of follow-up. Results In total, 57 patients treated with SCR (n = 20), PR (n = 17), and DB (n = 20) were included. The mean clinical follow-up was 33.8 ± 17.9 months. Preoperative clinical and functional characteristics were comparable among the 3 groups. The range of motion and clinical and functional scores of all 3 groups significantly improved from pre- to postoperatively. Postoperative PROMs showed no differences among all 3 study groups. SCR revealed significantly higher postoperative strength compared with PR (P = .001) and DB (P = .004). Postoperative MRI revealed a rerupture in 4 patients with SCR (20%). Postoperative MRI showed a rerupture in 9 patients with PR ( 53%). Fatty muscle infiltration of the supraspinatus and infraspinatus significantly progressed within all 3 study groups in postoperative MRI scans. No clinical and functional differences were observed between intact and reruptured PR. Conclusion Patients who underwent SCR had better postoperative strength recovery than patients who underwent PR or DB.
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Affiliation(s)
- Jakob E. Schanda
- Department for Trauma Surgery, AUVA Trauma Center Vienna-Meidling, Vienna, Austria
- Ludwig Boltzmann Institute for Traumatology–The Research Center in Cooperation with AUVA, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Martin Eigenschink
- Department for Trauma Surgery, AUVA Trauma Center Vienna-Meidling, Vienna, Austria
- Austrian Research Group for Regenerative and Orthopedic Medicine (AURROM), Vienna, Austria
| | - Brenda Laky
- Austrian Research Group for Regenerative and Orthopedic Medicine (AURROM), Vienna, Austria
- Austrian Society for Regenerative Medicine, Vienna, Austria
| | - Julia K. Frank
- II Orthopedic Department, Sacred Heart Hospital of Jesus, Vienna, Austria
| | - Leo Pauzenberger
- II Orthopedic Department, Sacred Heart Hospital of Jesus, Vienna, Austria
- healthPi Medical Center, Vienna, Austria
| | - Werner Anderl
- Austrian Society for Regenerative Medicine, Vienna, Austria
| | - Philipp R. Heuberer
- Austrian Research Group for Regenerative and Orthopedic Medicine (AURROM), Vienna, Austria
- healthPi Medical Center, Vienna, Austria
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Lee JB, Kholinne E, Ben H, So SP, Alsaqri H, Lee HJ, Koh KH, Jeon IH. Clinical and Radiological Outcomes of Arthroscopic Superior Capsular Reconstruction Versus Primary Rotator Cuff Repair in Massive Rotator Cuff Tears: A Propensity Score-Matched Study. Am J Sports Med 2023; 51:1971-1978. [PMID: 37260275 DOI: 10.1177/03635465231171928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
BACKGROUND Arthroscopic superior capsular reconstruction (aSCR) has emerged as a treatment option for managing massive rotator cuff tears (MRCTs) given the unpredictable results after an arthroscopic rotator cuff repair (aRCR). Yet, few comparative studies of aSCR and aRCR have been conducted. PURPOSE To compare the clinical and radiological outcomes between aRCR and aSCR in patients with MRCT. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A total of 163 cases of MRCT from 2010 to 2020 with follow-up ≥2 years were retrospectively reviewed. Among them, 102 had aRCR and 61 had aSCR using fascia lata autograft. Propensity score matching was used to select controls matched for age, sex, diabetes mellitus, osteoporosis, preoperative American Shoulder and Elbow Surgeons score, Single Assessment Numeric Evaluation score, Constant score, pain visual analog scale (pVAS) score, range of motion (ROM), tear size, global fatty degeneration index, and acromiohumeral distance (AHD). Last, 33 cases in each group were selected after propensity score matching. Radiological assessment was conducted using serial postoperative magnetic resonance imaging. Pre- and postoperative findings-including American Shoulder and Elbow Surgeons, pVAS, Single Assessment Numeric Evaluation, and Constant scores and ROM-were assessed to compare clinical outcomes. For radiological outcomes, global fatty degeneration index, AHD, and healing rate were evaluated. Healing failure was defined as Sugaya classification IV or V in the aRCR group, as compared with a full-thickness tear of the graft in the aSCR group, which corresponded to Sugaya classification IV or V. RESULTS Postoperative clinical outcomes were significantly improved at the final follow-up in both groups. In the aSCR group, postoperative forward flexion, pVAS, and AHD were significantly improved as compared with the aRCR group (mean, 161° vs 148° [P = .02]; 1.03 vs 1.64 [P = .047]; 7.00 vs 5.23 mm [P < .001], respectively). The healing rate was 20 of 33 (60.6%) for aRCR and 29 of 33 (87.9%) for aSCR (P = .022). CONCLUSION aSCR and aRCR are effective and reliable treatment options for MRCT. However, when compared with aRCR, aSCR showed improved clinical outcomes, including pVAS score, postoperative ROM, and favorable radiological findings, including AHD and a higher healing rate.
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Affiliation(s)
- Jun-Bum Lee
- Department of Orthopaedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Erica Kholinne
- Department of Orthopedic Surgery, St Carolus Hospital, Faculty of Medicine, Trisakti University, Jakarta, Indonesia
| | - Hui Ben
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Sang-Pil So
- Department of Orthopaedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hood Alsaqri
- Department of Orthopaedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
- Department of Orthopaedic Surgery, Rustaq Hospital, Rustaq, Sultanate of Oman
| | - Hyun June Lee
- Department of Orthopaedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Kyoung Hwan Koh
- Department of Orthopaedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - In-Ho Jeon
- Department of Orthopaedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Li H, Liao Y, Jin B, Yang M, Tang K, Zhou B. Dynamic Superior Capsular Reconstruction for Irreparable Massive Rotator Cuff Tears: Histologic Analysis in a Rat Model and Short-term Clinical Evaluation. Am J Sports Med 2023; 51:1255-1266. [PMID: 36943262 DOI: 10.1177/03635465231156619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
BACKGROUND Superior capsular reconstruction (SCR) has been demonstrated to be a valuable treatment for patients with irreparable massive rotator cuff tears (IMRCTs). However, the torn medial supraspinatus (SSP) tendons, which acted as dynamic stabilizers, were left untreated in conventional SCR, and the dynamic force from the SSP tendon was not restored. PURPOSE To evaluate the effect of dynamic SCR (dSCR) on fascia-to-bone healing in a rat model, and to compare the short-term clinical effectiveness of dSCR and SCR using autologous fascia lata (FL) in patients with IMRCTs. STUDY DESIGN Controlled laboratory study and cohort study; Level of evidence, 3. METHODS A total of 50 rats were divided randomly into 2 groups: the dSCR group and the SCR group (25 rats per group). First, chronic IMRCTs were created, and then the torn tendons in both groups were subjected to SCR using autologous thoracolumbar fascial (TLF) grafts. The remnant of the SSP tendon was sutured to the medial part of the TLF graft in the dSCR group but not in the SCR group. Histologic sections were assessed at 1, 2, 4, 8, and 16 weeks postoperatively. In the clinical study, 22 patients (9 SCR, 13 dSCR) were analyzed. The recovery of shoulder function, including the active range of motion (ROM), visual analog scale (VAS), American Shoulder and Elbow Surgeons score, Constant score, and University of California Los Angeles score, acromiohumeral distance (AHD), and fatty infiltration, was evaluated before surgery and at the last follow-up. RESULTS Histologic analysis of the fascia-to-bone junction in the rat model showed that the TLF gradually migrated into tendon-like tissue over the rotator cuff defects in both groups, and the modified tendon maturation score of the fascia-to-bone interface in the dSCR group was higher than that in the SCR group at 4 weeks (12.20 ± 1.30 vs 14.60 ± 1.52; P = .004), 8 weeks (19.60 ± 1.14 vs 22.20 ± 1.10; P = .019), and 16 weeks (23.80 ± 0.84 vs 26.20 ± 0.84 P = .024). The dSCR group showed earlier fibrocartilage cell formation and angiogenesis. In the clinical study, all 22 patients completed a minimum of 12 months of follow-up after surgery, and the mean follow-up duration was 22.89 ± 7.59 months in the SCR group and 25.62 ± 7.32 months in the dSCR group. The patients in both groups showed significant improvements in terms of ROM, shoulder function scores, and AHD. At the last follow-up, abduction (56.67°± 27.39° vs 86.54°± 30.37°; P = .029), external rotation (25.00°± 9.35° vs 33.08°± 8.55°; P = .049), internal rotation cone rank (-2.78 ± 2.44 vs -4.38 ± 1.12; P = .049), VAS (-3.00 ± 0.87 vs -3.92 ± 0.95; P = .031) and Constant (47.89 ± 15.39 vs 59.15 ± 9.74; P = .048) scores, and the AHD improvement degree (3.06 ± 1.41 mm vs 4.38 ± 1.35 mm; P = .039) in the dSCR group were significantly improved compared with those in the SCR group. The results of fatty infiltration at the last follow-up showed that there was significant improvement compared with the preoperative results in both the conventional SCR (P = .036) and the dSCR (P = .001) groups. However, there were no significant differences between the 2 groups (P = .511). CONCLUSION dSCR can promote faster fascia-to-bone healing in a rat model, and the dSCR technique could provide a preferable treatment option for patients with IMRCTs. CLINICAL RELEVANCE dSCR might restore the dynamic of SSP in some sense and then improve the fatty infiltration in the SSP.
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Affiliation(s)
- Huaisheng Li
- Department of Sports Medicine, Southwest Hospital, Army Medical University, Chongqing, China
| | - Yatao Liao
- Department of Sports Medicine, Southwest Hospital, Army Medical University, Chongqing, China
| | - Baoyong Jin
- Department of Sports Medicine, Southwest Hospital, Army Medical University, Chongqing, China
| | - Mingyu Yang
- Department of Sports Medicine, Southwest Hospital, Army Medical University, Chongqing, China
| | - Kanglai Tang
- Department of Sports Medicine, Southwest Hospital, Army Medical University, Chongqing, China
| | - Binghua Zhou
- Department of Sports Medicine, Southwest Hospital, Army Medical University, Chongqing, China
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Lee JB, Kholinne E, Yeom JW, Ben H, AlAhmadi BM, Koh KH, Jeon IH. Effect of Fatty Infiltration of the Infraspinatus Muscle on Outcomes and Graft Failure After Arthroscopic Superior Capsule Reconstruction for Irreparable Posterosuperior Rotator Cuff Tears. Am J Sports Med 2022; 50:3907-3914. [PMID: 36341723 DOI: 10.1177/03635465221130459] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Superior capsule reconstruction (SCR) was developed as an alternative treatment for irreparable rotator cuff tears to restore superior stability of the glenohumeral joint. Although fatty infiltration (FI) of the rotator cuff muscles, especially the infraspinatus, has been implicated as a predictor of outcomes and graft integrity after rotator cuff repair, it has not been fully investigated in cases of SCR. PURPOSE To evaluate the effect of FI of the infraspinatus muscle on clinical and radiological outcomes after SCR. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A total of 55 consecutive patients with irreparable posterosuperior rotator cuff tears who underwent SCR between January 2013 and August 2020 were included retrospectively. Preoperative and postoperative clinical and radiological findings (median follow-up of >2 years), including magnetic resonance imaging results, were thoroughly reviewed. The patients were divided into 2 groups: group 1 with mild FI of the infraspinatus (Goutallier grades 0-2) and group 2 with severe FI of the infraspinatus (Goutallier grades 3-4). The American Shoulder and Elbow Surgeons score, Constant score, visual analog scale score for pain, and range of motion were evaluated. Acromiohumeral distance and rotator cuff tear arthropathy using the Hamada classification were assessed on plain radiography. Postoperative graft integrity was evaluated by magnetic resonance imaging. Graft failure was defined as complete discontinuity. Univariate and multivariable logistic regression analyses were performed to evaluate clinical and radiological findings that might be associated with successful SCR. RESULTS Clinical and radiological outcomes significantly improved after SCR. Graft failure was noted in 15 (27.3%) patients and was more frequent in group 2 than in group 1 (50.0% vs 14.3%, respectively; P = .004). Univariate analysis indicated a significant association between severe FI in the infraspinatus (group 2) and graft failure after SCR (odds ratio, 6.00 [95% CI, 1.65-21.80]; P = .006). Multivariable analysis indicated that FI of the infraspinatus was the only factor associated with graft failure (odds ratio, 6.37 [95% CI, 1.63-24.90]; P = .008). CONCLUSION Severe FI of the infraspinatus muscle was a factor indicating a poor prognosis for graft integrity after SCR. Preoperative evaluation of FI in the rotator cuff muscles can help predict postoperative outcomes and may help guide therapeutic options.
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Affiliation(s)
- Jun-Bum Lee
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Erica Kholinne
- Department of Orthopedic Surgery, St Carolus Hospital, Faculty of Medicine, Trisakti University, Jakarta, Indonesia
| | - Ji Woong Yeom
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hui Ben
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Basim Masoud AlAhmadi
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.,Department of Orthopedic Surgery, St Carolus Hospital, Faculty of Medicine, Trisakti University, Jakarta, Indonesia
| | - Kyung-Hwan Koh
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - In-Ho Jeon
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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