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Menze J, Rojas JT, Ferguson SJ, De Pieri E, Gerber K, Zumstein MA. Lower trapezius and latissimus dorsi transfer relieve teres minor activity into the physiological range in Collin D irreparable posterosuperior massive rotator cuff tears: a biomechanical analysis. J Shoulder Elbow Surg 2024:S1058-2746(24)00267-2. [PMID: 38642877 DOI: 10.1016/j.jse.2024.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 02/21/2024] [Accepted: 03/03/2024] [Indexed: 04/22/2024]
Abstract
BACKGROUND Tendon transfers are established techniques to regain external rotation mobility in patients with an irreparable, posterosuperior massive rotator cuff tear (MRCT). Posterosuperior MRCT with intact teres minor (type D MRCT) can lead to excessive teres minor loading to maintain external rotation. We hypothesize that tendon transfers are effective in relieving teres minor loading in type D MRCTs. Our aim was to biomechanically assess muscle synergism with latissimus dorsi (LD transfer) and lower trapezius (LT transfer) tendon transfer during external rotation at different abduction heights. METHODS Using musculoskeletal modeling, we analyzed and compared the moment arm, muscle torque, and muscle activity between a healthy and type D MRCT pathologic model with and without the LD- or LT transfer at infraspinatus and teres minor insertion sites. Output measures were analyzed during external rotation at different abduction angles and 10-50 N resistance against external rotation. We assessed its impact on teres minor loading in a type D MRCT. Morphologic variations were parameterized using the critical shoulder angle and the acromiohumeral distance to address variations among patients. RESULTS Both transfer types reduced teres minor torque and activity significantly, reaching physiological state at 40 N external resistance (P < .001), with insertion to infraspinatus site being more effective than teres minor site (P < .001). External rotation moment arms of LD transfer were larger than LT transfer at 90° abduction (25.1 ± 0.8 mm vs. 21.2 ± 0.6 mm, P < .001) and vice versa at 0° abduction (17.4 ± 0.5 mm vs. 24.0 ± 0.2 mm, P < .001). Although the healthy infraspinatus was the main external rotator in all abduction angles (50%-70% torque), a type D MRCT resulted in a 70%-90% increase of teres minor torque and an up to 7-fold increase in its activity leading to excessive loadings beyond 10 N resistance against external rotation. Varying the critical shoulder angle and the acromiohumeral distance led to minor variations in muscle moment arm and muscle activity. CONCLUSION We identified biomechanical efficacy of both tendon transfers in type D MRCT regarding teres minor load relief and superior performance of the transfers at the infraspinatus insertion site.
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Affiliation(s)
- Johanna Menze
- School of Precision and Biomedical Engineering, University of Bern, Bern, Switzerland; Institute for Biomechanics, ETH Zürich, Zürich, Switzerland
| | - J Tomás Rojas
- Shoulder, Elbow and Orthopaedic Sports Medicine, Orthopaedics Sonnenhof, Bern, Switzerland; Department of Orthopaedics and Trauma Surgery, Hospital San José-Clínica Santa María, Santiago, Chile
| | | | - Enrico De Pieri
- Institute for Biomechanics, ETH Zürich, Zürich, Switzerland; Department of Biomedical Engineering, University of Basel, Basel, Switzerland
| | - Kate Gerber
- School of Precision and Biomedical Engineering, University of Bern, Bern, Switzerland
| | - Matthias A Zumstein
- Shoulder, Elbow and Orthopaedic Sports Medicine, Orthopaedics Sonnenhof, Bern, Switzerland; Faculty of Medicine, University of Bern, Bern, Switzerland; Faculty of Medicine, Health & Human Sciences, Macquarie University, Sydney, NSW, Australia.
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Kany J, Siala M, Werthel JD, Grimberg J. Full arthroscopic vs. arthroscopically assisted posterosuperior latissimus dorsi tendon transfer for shoulders with failed and irreparable rotator cuff repair: matched case-control study. J Shoulder Elbow Surg 2024; 33:e198-e207. [PMID: 37769869 DOI: 10.1016/j.jse.2023.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/02/2023] [Accepted: 08/06/2023] [Indexed: 10/03/2023]
Abstract
PURPOSE To compare clinical outcomes and complication rates of full arthroscopic latissimus dorsi tendon transfer (LDTT) vs. arthroscopically assisted LDTT, for the treatment of irreparable posterosuperior massive rotator cuff tears (mRCTs) in shoulders that had failed rotator cuff repair (RCR). METHODS We evaluated a continuous series of 191 patients who underwent LDTT over 4 consecutive years. A total of 107 patients did not have previous shoulder surgery, leaving 84 patients who had prior surgical procedures. All procedures performed over the first 2 years were arthroscopically assisted (n = 48), whereas all procedures performed over the last 2 years were full arthroscopic (n = 36). We noted all complications, as well as clinical scores and range of motion at ≥24 months. To enable direct comparison between the 2 techniques, propensity score matching was used to obtain 2 groups with equivalent age, sex, and follow-up. RESULTS Compared with the 48 patients who underwent arthroscopically assisted LDTT, the 36 patients who underwent full arthroscopic LDTT had comparable complications (13% vs. 11%) and conversions to RSA (8.3% vs. 5.6%). Propensity score matching resulted in 2 groups, each comprising 31 patients, which had similar outcomes in terms of clinical scores (except mobility component of Constant score, which was better following fully arthroscopic LDTT; P = .037) and range of motion at a minimum follow-up of 2 years. CONCLUSION At a minimum follow-up of 24 months, for the treatment of irreparable posterosuperior mRCTs in shoulders that had surgical antecedents, full arthroscopic LDTT had significantly better mobility component of the Constant score than arthroscopically assisted LDTT, although there were no significant differences in the other clinical or functional outcomes. Arthroscopically assisted LDTT and full arthroscopic LDTT had comparable rates of complications (8.3% vs. 13%) and conversion to RSA (5.6% vs. 8.3%).
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Affiliation(s)
- Jean Kany
- Clinique De l'Union, Ramsay Santé, Saint Jean, France
| | - Mahdi Siala
- Clinique De l'Union, Ramsay Santé, Saint Jean, France
| | | | - Jean Grimberg
- LIRCOS, Clinique Jouvenet, Ramsay Santé, Paris, France
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Velasquez Garcia A, Nieboer MJ, de Marinis R, Morrey ME, Valenti P, Sanchez-Sotelo J. Mid- to long-term outcomes of latissimus dorsi tendon transfer for massive irreparable posterosuperior rotator cuff tears: a systematic review and meta-analysis. J Shoulder Elbow Surg 2024; 33:959-974. [PMID: 37993088 DOI: 10.1016/j.jse.2023.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/20/2023] [Accepted: 10/08/2023] [Indexed: 11/24/2023]
Abstract
BACKGROUND This study aims to analyze the mid-to long-term results of the latissimus dorsi tendon for the treatment of massive posterosuperior irreparable rotator cuff tears as reported in high-quality publications and to determine its efficacy and safety. METHODS A systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. PubMed, Scopus, and EMBASE databases were searched until December 2022 to identify studies with a minimum 4 year follow-up. Clinical and radiographic outcomes, complications, and revision surgery data were collected. The publications included were analyzed quantitatively using the DerSimonian Laird random-effects model to estimate the change in outcomes from the preoperative to the postoperative condition. The proportion of complications and revisions were pooled using the Freeman-Tukey double arcsine transformation. RESULTS Of the 618 publications identified through database search, 11 articles were considered eligible. A total of 421 patients (432 shoulders) were included in this analysis. Their mean age was 59.5 ± 4 years. Of these, 277 patients had mid-term follow-up (4-9 years), and 144 had long-term follow-up (more than 9 years). Postoperative improvements were considered significant for the following outcome parameters: Constant-Murley Score (0-100 scale), with a mean difference (MD) = 28 points (95% confidence interval [CI] 21, 36; I2 = 89%; P < .001); visual analog scale, with a standardized MD = 2.5 (95% CI 1.7, 3.3; P < .001; I2 = 89%; P < .001); forward flexion, with a MD = 43° (95% CI 21°, 65°; I2 = 95% P < .001); abduction, with a MD = 38° (95% CI 20°, 56°; I2 = 85%; P < .01), and external rotation, with a MD = 8° (95% CI 1°, 16°; I2 = 87%; P = .005). The overall reported mean complication rate was 13% (95% CI 9%, 19%; I2 = 0%), while the reported mean revision rate was 6% (95% CI: 3%, 9%; I2 = 0%). CONCLUSIONS Our pooled estimated results seem to indicate that latissimus dorsi tendon transfer significantly improves patient-reported outcomes, pain relief, range of motion, and strength, with modest rates of complications and revision surgery at mid-to long-term follow-up. In well-selected patients, latissimus dorsi tendon transfer may provide favorable outcomes for irreparable posterosuperior cuff tears.
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Affiliation(s)
- Ausberto Velasquez Garcia
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA; Department of Orthopedic Surgery, Clinica Universidad de los Andes, Santiago, Chile
| | - Micah J Nieboer
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Rodrigo de Marinis
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA; Department of Orthopedic Surgery, Pontificia Universidad Católica de Chile, Santiago, Chile; Shoulder and Elbow Unit, Hospital Dr. Sótero del Rio, Santiago, Chile
| | - Mark E Morrey
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
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Sanchez-Sotelo J. Lower Trapezius Transfer for Irreparable Posterosuperior Rotator Cuff Tears. Curr Rev Musculoskelet Med 2024; 17:93-100. [PMID: 38294674 PMCID: PMC10917725 DOI: 10.1007/s12178-024-09885-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/01/2024] [Indexed: 02/01/2024]
Abstract
PURPOSE OF REVIEW Functionally irreparable posterosuperior rotator cuff tears (FIRCT) represent a substantial source of morbidity for many patients. Several surgical options can be considered for the salvage of FICRTs. Transfer of the tendon of the lower trapezius to the greater tuberosity, originally described for surgical management of the paralytic shoulder, has emerged as an attractive option, particularly for patients with external rotation lag and those looking for strength restoration. The purpose of this publication is to review the indications, surgical technique, and reported outcomes of this procedure. RECENT FINDINGS Lower trapezius transfer (LTT) to the greater tuberosity in patients with irreparable posterosuperior rotator cuff tears has been reported to be associated with satisfactory outcomes and low reoperation rates. It seems to be particularly effective in improving external rotation motion and strength, even when the teres minor is involved. In patients with a reparable infraspinatus, minimal fatty infiltration, and an intact teres minor, the outcome of LTT may be similar to that of superior capsule reconstruction (SCR), but LTT is more beneficial otherwise. The hospital cost of LTT has been reported to be less than the cost of SCR and equivalent to the cost of reverse arthroplasty. When reverse arthroplasty has been performed after a failed LTT, the outcome and complication rates do not seem to increase. LTT provides satisfactory outcomes for many patients with a posterosuperior FIRCT, particularly when they present preoperatively with an external rotation lag sign, involvement of the teres minor, or a desire to improve strength.
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Affiliation(s)
- Joaquin Sanchez-Sotelo
- Division of Shoulder and Elbow Surgery, Department of Orthopedic Surgery, Mayo Clinic, Gonda 14, 200 First Street SW, Rochester, MN, 55905, USA.
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de Marinis R, Marigi EM, Atwan Y, Velasquez Garcia A, Morrey ME, Sanchez-Sotelo J. Lower Trapezius Transfer Improves Clinical Outcomes With a Rate of Complications and Reoperations Comparable to Other Surgical Alternatives in Patients with Functionally Irreparable Rotator Cuff Tears: A Systematic Review. Arthroscopy 2024; 40:950-959. [PMID: 37394146 DOI: 10.1016/j.arthro.2023.06.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 05/12/2023] [Accepted: 06/16/2023] [Indexed: 07/04/2023]
Abstract
PURPOSE To analyze the clinical outcomes of lower trapezius transfer (LTT) for patients with functionally irreparable rotator cuff tears (FIRCT) and summarize the available literature regarding complications and reoperations. METHODS After registration in the International prospective register of systematic reviews (PROSPERO [CRD42022359277]), a systematic review following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines was performed. Inclusion criteria were English, full-length, peer-reviewed publications with a level of evidence IV or higher reporting on clinical outcomes of LTT for FIRCT. Ovid MEDLINE, Embase, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, and Scopus via Elsevier databases were searched. Clinical data, complications and revisions were systematically recorded. RESULTS Seven studies with 159 patients were identified. The mean age range was 52 to 63 years, 70.4% of the patients included were male, and the mean follow-up time ranged between 14 and 47 months. At final follow-up, LTT lead to improvements in range of motion, with reported forward elevation (FE) and external rotation (ER) mean gains of 10° to 66° and 11° to 63°, respectively. ER lag was present before surgery in 78 patients and was reversed after LTT in all shoulders. Patient-reported outcomes were improved at final follow-up, including the American Shoulder and Elbow Society score, Shoulder Subjective Value and Visual Analogue Scale. The overall complication rate was 17.6%, and the most reported complication was posterior harvest site seroma/hematoma (6.3%). The most common reoperation was conversion to reverse shoulder arthroplasty (5%) with an overall reoperation rate of 7.5%. CONCLUSIONS Lower trapezius transfer improves clinical outcomes in patients with irreparable rotator cuff tears with a rate of complications and reoperations comparable to other surgical alternatives in this group of patients. Increases in forward flexion and ER are to be expected, as well as a reversal of ER lag sign when present before surgery. LEVEL OF EVIDENCE Level IV, systematic review of Level III-IV studies.
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Affiliation(s)
- Rodrigo de Marinis
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A.; Department of Orthopedic Surgery, Pontificia Universidad Católica de Chile, Santiago, Chile; Shoulder and Elbow Unit, Hospital Dr. Sótero del Rio, Santiago, Chile
| | - Erick M Marigi
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | - Yousif Atwan
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | - Ausberto Velasquez Garcia
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A.; Clinica Universidad de los Andes, Department of Orthopedic Surgery, Santiago, Chile
| | - Mark E Morrey
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
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La Banca V, Bonadiman JA, Gonzalez FF, Gustafson JA, Leporace G, Garrigues GE, Chahla J, Metsavaht L. Changes in in vivo three dimensional shoulder kinematics following latissimus dorsi tendon transfer for irreparable posterosuperior rotator cuff tears: A systematic review with meta-analysis. Clin Biomech (Bristol, Avon) 2024; 111:106148. [PMID: 37979245 DOI: 10.1016/j.clinbiomech.2023.106148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 11/05/2023] [Accepted: 11/08/2023] [Indexed: 11/20/2023]
Abstract
BACKGROUND Latissimus dorsi transfer is a surgical procedure that can be used for treating posterosuperior rotator cuff tears. The procedure leads to improved shoulder function via alterations in the force vector couple around the shoulder. However, there is still no consensus on the biomechanical changes resulting from latissimus dorsi transfer. METHODS We performed a systematic review of the literature on 3D motion analysis studies evaluating the effects of latissimus dorsi transfer on shoulder kinematics. The available data on segment and joint range of motion was extracted and subject to meta-analysis when consistent across the studies. FINDINGS Our meta-analysis of pre- and post-operative studies revealed a significant improvement in forward flexion and abduction following latissimus dorsi transfer. When comparing the latissimus transferred shoulder with an uninjured contralateral side the meta-analysis found no significant difference in flexion range of motion, while abduction and external rotation was significantly higher in the uninjured shoulders. The overall risk of bias was moderate to high. High heterogeneity was found in the reporting of data, which limited our ability to perform a meta-analysis across the studies for all interest outcomes. INTERPRETATIONS Our findings suggest that latissimus dorsi transfer for posterosuperior rotator cuff tears effectively improves shoulder flexion and abduction. External rotation is also expected to improve but at inferior levels as compared to the unaffected side. However, the heterogeneity of the reported data on 3D motion analysis studies highlights the need for better standardization in research and reporting as to conclude the impact of different joints.
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Affiliation(s)
- Vitor La Banca
- Midwest Orthopedics at Rush, Rush University Medical Center, 1611 West Harrison St, Chicago, IL, USA; Instituto Brasil de Tecnologia da Saúde, R.Visc de Pirajá, 407, Rio de Janeiro, RJ, Brazil; Disciplina de Ortopedia, Centro Universitário Faculdade de Medicina do ABC (FMABC), Av. Lauro Gomes, 2000, Santo André, SP, Brazil.
| | - João Artur Bonadiman
- Midwest Orthopedics at Rush, Rush University Medical Center, 1611 West Harrison St, Chicago, IL, USA; Instituto Brasil de Tecnologia da Saúde, R.Visc de Pirajá, 407, Rio de Janeiro, RJ, Brazil.
| | - Felipe Fernandes Gonzalez
- Midwest Orthopedics at Rush, Rush University Medical Center, 1611 West Harrison St, Chicago, IL, USA; Instituto Brasil de Tecnologia da Saúde, R.Visc de Pirajá, 407, Rio de Janeiro, RJ, Brazil.
| | - Jonathan Adam Gustafson
- Midwest Orthopedics at Rush, Rush University Medical Center, 1611 West Harrison St, Chicago, IL, USA; Instituto Brasil de Tecnologia da Saúde, R.Visc de Pirajá, 407, Rio de Janeiro, RJ, Brazil.
| | - Gustavo Leporace
- Instituto Brasil de Tecnologia da Saúde, R.Visc de Pirajá, 407, Rio de Janeiro, RJ, Brazil; Depto. de Diagnóstico por Imagem - Escola Paulista de Medicina, Universidade Federal de São Paulo, R. Napoleão de Barros, 800, São Paulo, SP, Brazil.
| | - Grant E Garrigues
- Midwest Orthopedics at Rush, Rush University Medical Center, 1611 West Harrison St, Chicago, IL, USA.
| | - Jorge Chahla
- Midwest Orthopedics at Rush, Rush University Medical Center, 1611 West Harrison St, Chicago, IL, USA.
| | - Leonardo Metsavaht
- Instituto Brasil de Tecnologia da Saúde, R.Visc de Pirajá, 407, Rio de Janeiro, RJ, Brazil.
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Baek CH, Kim BT, Kim JG. Arthroscopic-Assisted Lower Trapezius Tendon Transfer Using a Fasciae Lata Autograft in Treatment of Posterior Superior Irreparable Rotator Cuff Tears in Lateral Decubitus Position. Arthrosc Tech 2023; 12:e2227-e2237. [PMID: 38196876 PMCID: PMC10772998 DOI: 10.1016/j.eats.2023.07.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 07/29/2023] [Indexed: 01/11/2024] Open
Abstract
The optimal treatment for patients with posterior superior irreparable rotator cuff tears (PSIRCTs) is still a topic of ongoing debate. Lower trapezius tendon transfer is one of the effective surgical treatments for PSIRCTs in younger patients and elderly patients with high activity levels without arthritis. In this report, we describe an arthroscopic-assisted technique for lower trapezius transfer using a fascia lata autograft for patient with PSIRCTs in lateral decubitus position.
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Affiliation(s)
- Chang Hee Baek
- Department of Orthopaedic Surgery, Yeosu Baek Hospital, Jeollanam-do, Republic of Korea
| | - Bo Taek Kim
- Department of Orthopaedic Surgery, Yeosu Baek Hospital, Jeollanam-do, Republic of Korea
| | - Jung Gon Kim
- Department of Orthopaedic Surgery, Yeosu Baek Hospital, Jeollanam-do, Republic of Korea
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Almeida TBC, Pascarelli L, Bongiovanni RR, Tamaoki MJS, Rodrigues LMR. Outcomes of lower trapezius transfer with hamstring tendons for irreparable rotator cuff tears. Shoulder Elbow 2023; 15:63-71. [PMID: 37974604 PMCID: PMC10649487 DOI: 10.1177/17585732221135181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 10/01/2022] [Accepted: 10/09/2022] [Indexed: 11/19/2023]
Abstract
Background The aim of this study was to evaluate the results of the transfer of the lower trapezius with a graft from hamstring tendons in the treatment of irreparable rotator cuff tears . Level IV; Case Series; Treatment Study. Methods Ten patients diagnosed with irreparable tears of the supraspinatus and infraspinatus tendons, were evaluated retrospectively -preoperatively, 6 and 12 months postoperatively. They underwent transfer of the prolonged lower trapezius with an autologous graft of the knee flexor tendons. Results The Shoulder Subjective Value increased from 47 (preoperative) to 71 (1 year after surgery), American Shoulder and Elbow Surgeons Score increased from 26.63 to 75.24. Pain improved from 7.9 to 2.5 on the Visual Analogue Scale. The mean lateral rotation improved from 31° to 51°, flexion from 84° to 122°, and abduction from 76° to 101°. These results have not changed significantly between 6 and 12 months. Discussion The transfer of the lower trapezius with autologous grafts from the hamstring tendons showed good results in patients under 65 years of age with irreparable rotator cuff tears . Longer follow-up and a greater number of cases are necessary to confirm the efficacy of the transfer.
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Affiliation(s)
- Thiago BC Almeida
- Shoulder and Elbow Department, Hospital IFOR - Rede D’Or, São Bernardo do Campo, SP, Brazil
- Centro Universitário Faculdade de Medicina do ABC, Santo André, SP, Brazil
| | - Luciano Pascarelli
- Shoulder and Elbow Department, Hospital IFOR - Rede D’Or, São Bernardo do Campo, SP, Brazil
| | - Roberto R Bongiovanni
- Shoulder and Elbow Department, Hospital IFOR - Rede D’Or, São Bernardo do Campo, SP, Brazil
| | - Marcel JS Tamaoki
- Orthopaedics and Traumatology Department, Universidade Federal de São Paulo, São Paulo, SP, Brazil
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Loren J, Lu CY(J, Yang CP, Hsu KY, Cheng YH, Sheu H, Chen CY, Tang HC, Chuang CA, Chiu CH(J. Arthroscopic Lower Trapezius Tendon Transfer for a Patient with Axillary Nerve Injury and Concomitant Rotator Cuff Tear: A Case Report and Technical Notes. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1817. [PMID: 37893536 PMCID: PMC10608587 DOI: 10.3390/medicina59101817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/10/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023]
Abstract
Introduction: Concomitant nerve injuries with musculoskeletal injuries present a challenging problem. The goals of nerve reconstruction for the shoulder include shoulder abduction and external rotation. When patients fail to achieve acceptable shoulder external rotation and shoulder abduction, tendon transfers such as trapezius transfer offer a reliable option in the subsequent stage. Case Presentation: A 32-year-old male presented with weak external rotation in his left shoulder, after previous axillary nerve reconstruction. He received the ipsilateral lower trapezius transfer with the aim of improving the external rotation. Discussion: The lower trapezius restores a better joint reaction force in both the compressive-distractive and anterior-posterior balancing and provides a centering force through the restoration of the anterior-posterior force couple. Conclusion: We believe that the ipsilateral lower trapezius transfer to the infraspinatus is a good outcome and is effective in improving overall shoulder stability and the shoulder external rotation moment arm or at least maintaining in neutral position with the arm fully adducted in patients with post axillary nerve injuries post unsatisfactory nerve reconstruction to increase the quality of life and activities of daily living.
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Affiliation(s)
- Jeff Loren
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (J.L.); (C.-P.Y.); (C.-Y.C.)
- Department of Orthopedics & Traumatology, Royal Prima General Hospital, Medan 20118, Indonesia
| | - Chuieng-Yi (Johnny) Lu
- Division of Reconstructive Microsurgery, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan;
- Department of Occupational Therapy and Graduate Institute of Behavioral Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Cheng-Pang Yang
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (J.L.); (C.-P.Y.); (C.-Y.C.)
| | - Kuo-Yao Hsu
- Department of Orthopedic Surgery, New Taipei Municipal Tucheng Hospital, New Taipei City 236, Taiwan; (K.-Y.H.); (Y.-H.C.)
| | - You-Hung Cheng
- Department of Orthopedic Surgery, New Taipei Municipal Tucheng Hospital, New Taipei City 236, Taiwan; (K.-Y.H.); (Y.-H.C.)
| | - Huan Sheu
- Department of Orthopedic Surgery, Taoyuan Chang Gung Memorial Hospital, Taoyuan 333, Taiwan;
| | - Chao-Yu Chen
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (J.L.); (C.-P.Y.); (C.-Y.C.)
| | - Hao-Che Tang
- Department of Orthopedic Surgery, Keelung Chang Gung Memorial Hospital, Keelung 204, Taiwan; (H.-C.T.); (C.-A.C.)
| | - Chieh-An Chuang
- Department of Orthopedic Surgery, Keelung Chang Gung Memorial Hospital, Keelung 204, Taiwan; (H.-C.T.); (C.-A.C.)
| | - Chih-Hao (Joe) Chiu
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (J.L.); (C.-P.Y.); (C.-Y.C.)
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Marigi EM, Jackowski JR, Elahi MA, Barlow J, Morrey ME, Camp CL, Sanchez-Sotelo J. Improved Yet Varied Clinical Outcomes Observed With Comparison of Arthroscopic Superior Capsular Reconstruction Versus Arthroscopy-Assisted Lower Trapezius Transfer for Patients With Irreparable Rotator Cuff Tears. Arthroscopy 2023; 39:2133-2141. [PMID: 37142136 DOI: 10.1016/j.arthro.2023.04.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 05/06/2023]
Abstract
PURPOSE To evaluate the outcomes of arthroscopic superior capsular reconstruction (SCR) and arthroscopy-assisted lower trapezius tendon transfer (LTT) for posterosuperior irreparable rotator cuff tears (IRCTs). METHODS Over an almost 6-year period (October 2015 to March 2021), all patients who underwent IRCT surgery with a minimum 12-month follow-up period were identified. For patients with a substantial active external rotation (ER) deficit or lag sign, LTT was preferentially selected. Patient-reported outcome scores included the visual analog scale (VAS) pain score, strength score, American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES) score, Single Assessment Numeric Evaluation (SANE) score, and Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) score. RESULTS We included 32 SCR patients and 72 LTT patients. Preoperatively, LTT patients had more advanced teres minor fatty infiltration (0.3 vs 1.1, P = .009), a higher global fatty infiltration index (1.5 vs 1.9, P = .035), and a higher presence of the ER lag sign (15.6% vs 48.6%, P < .001). At a mean follow-up of 2.9 ± 1.3 years (range, 1.0-6.3 years), no differences in patient-reported outcome scores were observed. Postoperatively, SCR patients had a lower VAS score (0.3 vs 1.1, P = .017), higher forward elevation (FE) (156° vs 143°, P = .004), and higher FE strength (4.8 vs 4.5, P = .005) and showed greater improvements in the VAS score (6.8 vs 5.1, P = .009), FE (56° vs 31°, P = .004), and FE strength (1.0 vs 0.4, P < .001). LTT patients showed greater improvement in ER (17° vs 29°, P = .026). There was no statistically significant between-cohort difference in complication rate (9.4% vs 12.5%, P = .645) or reoperation rate (3.1% vs 10%, P = .231). CONCLUSIONS With adequate selection criteria, both SCR and LTT provided improved clinical outcomes for posterosuperior IRCTs. Additionally, SCR led to better pain relief and restoration of FE whereas LTT provided more reliable improvement in ER. LEVEL OF EVIDENCE Level III, treatment study with retrospective cohort comparison.
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Affiliation(s)
- Erick M Marigi
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | - Jacob R Jackowski
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | | | - Jonathan Barlow
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | - Mark E Morrey
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | - Christopher L Camp
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
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Kandeel AAM. Biceps-based 3-layer reconstruction of the irreparable rotator cuff: a technical note on biceps tendon as a common local graft for in-situ superior capsular reconstruction, partial cuff repair, and middle trapezius tendon transfer. J Orthop Surg Res 2023; 18:499. [PMID: 37454106 DOI: 10.1186/s13018-023-03978-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 07/03/2023] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND For irreparable rotator cuff tears, 3-layer tendon reconstruction (in which in-situ superior capsular reconstruction-reinforced partial rotator cuff repair was augmented with hamstring-sheet-lengthened middle trapezius tendon transfer) was recently reported to achieve satisfactory postoperative outcomes. To avoid hamstring graft-related drawbacks, the current note describes a technical modification of that reconstruct; wherein long head of biceps tendon is used as a cornerstone structure for simultaneously reconstructing the superior capsule; lengthening the transferred middle trapezius tendon; and augmenting the partially-repaired rotator cuff. METHODS Via sub-pectoral approach, long head of biceps tendon is distally-tenotomized. Through McKenzie approach, proximal stump of the tenotomized long head of biceps is retrieved to the sub-acromial space where double-row biceps tenodesis (into a trough at the greater tuberosity) is performed for reconstructing the superior capsule. Next, postero-superior rotator cuff is partially repaired, and side-to-side sutured to the reconstructed capsule. Through a 7-8-cm skin incision over the medial scapular spine, middle trapezius tendon is released. Portion of long head of biceps tendon distal to the tenodesis site is retrieved via a sub-trapezius/sub-acromial corridor to the scapular wound where it is re-attached to the released middle trapezius tendon. RESULTS Use of long head of biceps tendon as a common local graft (for simultaneously reconstructing the superior capsule, lengthening the transferred middle trapezius tendon, and augmenting the partially-repaired rotator cuff) is technically feasible provided that the harvested tendon stump is at least 10 cm in length. CONCLUSION While avoiding hamstring graft-related complications, the currently-reported biceps-based 3-layer rotator cuff tendon reconstruction might offer the advantages of reproducibility, safety, simplicity and quickness; however, it should be validated via further studies. Trial registration The present study was approved by the Institutional Committee of Scientific Research and Ethics (3-2023Orth10-1).
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Affiliation(s)
- Amr Abdel-Mordy Kandeel
- Department of Orthopedics and Traumatology, Faculty of Medicine, Menoufia University, Gamal Abdel-Nasser Street, Shebien El-kom, Menoufia Governorate, Egypt.
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12
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Muench LN, Rupp MC, Obopilwe E, Mehl J, Scheiderer B, Siebenlist S, Elhassan BT, Mazzocca AD, Berthold DP. Physiological Tensioning During Lower Trapezius Transfer for Irreparable Posterosuperior Rotator Cuff Tears May Be Important for Improvement in Shoulder Kinematics. Am J Sports Med 2023; 51:2422-2430. [PMID: 37318086 PMCID: PMC10353027 DOI: 10.1177/03635465231179693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 04/28/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND Lower trapezius transfer (LTT) has been proposed for restoring the anteroposterior muscular force couple in the setting of an irreparable posterosuperior rotator cuff tear (PSRCT). Adequate graft tensioning during surgery may be a factor critical for sufficient restoration of shoulder kinematics and functional improvement. PURPOSE/HYPOTHESIS The purpose was to evaluate the effect of tensioning during LTT on glenohumeral kinematics using a dynamic shoulder model. It was hypothesized that LTT, while maintaining physiological tension on the lower trapezius muscle, would improve glenohumeral kinematics more effectively than undertensioned or overtensioned LTT. STUDY DESIGN Controlled laboratory study. METHODS A total of 10 fresh-frozen cadaveric shoulders were tested using a validated shoulder simulator. Glenohumeral abduction angle, superior migration of the humeral head, and cumulative deltoid force were compared across 5 conditions: (1) native, (2) irreparable PSRCT, (3) LTT with a 12-N load (undertensioned), (4) LTT with a 24-N load (physiologically tensioned according to the cross-sectional area ratio of the lower trapezius muscle), and (5) LTT with a 36-N load (overtensioned). Glenohumeral abduction angle and superior migration of the humeral head were measured using 3-dimensional motion tracking. Cumulative deltoid force was recorded in real time throughout dynamic abduction motion by load cells connected to actuators. RESULTS Physiologically tensioned (Δ13.1°), undertensioned (Δ7.3°), and overtensioned (Δ9.9°) LTT each significantly increased the glenohumeral abduction angle compared with the irreparable PSRCT (P < .001 for all). Physiologically tensioned LTT achieved a significantly greater glenohumeral abduction angle than undertensioned LTT (Δ5.9°; P < .001) or overtensioned LTT (Δ3.2°; P = .038). Superior migration of the humeral head was significantly decreased with LTT compared with the PSRCT, regardless of tensioning. Physiologically tensioned LTT resulted in significantly less superior migration of the humeral head compared with undertensioned LTT (Δ5.3 mm; P = .004). A significant decrease in cumulative deltoid force was only observed with physiologically tensioned LTT compared with the PSRCT (Δ-19.2 N; P = .044). However, compared with the native state, LTT did not completely restore glenohumeral kinematics, regardless of tensioning. CONCLUSION LTT was most effective in improving glenohumeral kinematics after an irreparable PSRCT when maintaining physiological tension on the lower trapezius muscle at time zero. However, LTT did not completely restore native glenohumeral kinematics, regardless of tensioning. CLINICAL RELEVANCE Tensioning during LTT for an irreparable PSRCT may be important to sufficiently improve glenohumeral kinematics and may be an intraoperatively modifiable key variable to ensure postoperative functional success.
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Affiliation(s)
- Lukas N. Muench
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
- Department of Orthopedics & Sports Medicine, University of Connecticut, Farmington, Connecticut, USA
| | | | - Elifho Obopilwe
- Department of Orthopedics & Sports Medicine, University of Connecticut, Farmington, Connecticut, USA
| | - Julian Mehl
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Bastian Scheiderer
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Bassem T. Elhassan
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Augustus D. Mazzocca
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Daniel P. Berthold
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
- Department of Orthopedics & Sports Medicine, University of Connecticut, Farmington, Connecticut, USA
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13
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Ahmed AF, Lohre R, Elhassan BT. Muscular Retraining and Rehabilitation after Shoulder Muscle Tendon Transfer. Phys Med Rehabil Clin N Am 2023; 34:481-488. [PMID: 37003665 DOI: 10.1016/j.pmr.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Muscle tendon transfers around the shoulder involve transferring the tendon of a well-functioning muscle-tendon unit to the site of damaged muscle-tendon insertion. In turn, this restores function and strength of the injured shoulder muscle through dynamic muscular contraction and a tenodesis effect. Rehabilitation after shoulder muscle tendon transfers requires extensive and lengthy rehabilitation to achieve satisfactory clinical outcomes. It is crucial to gain detailed understanding of the rehabilitation requirements for different tendon transfer procedures such as the type of immobilization and specific range of motion limitations at specific time points during rehabilitations.
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Desai V, Stambulic T, Daneshvar P, Bicknell RT. Lower trapezius tendon transfer for irreparable rotator cuff injuries: a scoping review. JSES REVIEWS, REPORTS, AND TECHNIQUES 2023; 3:1-9. [PMID: 37588064 PMCID: PMC10426520 DOI: 10.1016/j.xrrt.2022.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Background Rotator cuff tears are a common source of shoulder pain and dysfunction. An irreparable rotator cuff tear poses a particular treatment challenge. There have been few studies reporting the outcomes of lower trapezius tendon (LTT) transfer for irreparable rotator cuff injuries. Therefore, the purpose of this review is to summarize the postoperative functional outcomes and complications of patients undergoing a LTT transfer for massive irreparable rotator cuff injuries. Methods A scoping review was performed using the Medline, Embase, Cochrane Central Register of Controlled Trials, and Google Scholar databases with the search terms "trapezius" AND "transfer." Of 362 studies included for initial screening, 37 full-text citations were reviewed, with 5 studies meeting all the inclusion criteria to be included in the review. Two reviewers extracted data on study design, patient demographics, surgical technique, functional outcomes, range of motion (ROM), and complications for each study according to the predefined criteria. Results Improvements in the preoperative to postoperative functional status, identified using the Disabilities of the Arm, Shoulder, and Hand (50.34 to 18), The American Shoulder and Elbow Surgeons Score (48.56 to 80.24), Visual Analog Scale (5.8 to 1.89), Single Assessment Numeric Evaluation (34.22 to 69.86), and Subjective Shoulder Value (52.24 to 77.66), were evident across all 5 studies. Preoperative to postoperative increases in ROM were seen for flexion (85 to 135), external rotation (18 to 52), and abduction (50 to 98). The overall complication rate was 18%, with seroma formation (8%) as the most common postoperative complication. Discussion/Conclusion Our analysis showed that LTT transfer improved postoperative function, ROM, and pain for patients with irreparable rotator cuff tears with an overall complication rate of 18%. Future controlled studies are required to directly compare LTT transfer to other tendon transfers and other surgical techniques for irreparable rotator cuff tears.
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Affiliation(s)
- Veeral Desai
- School of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Thomas Stambulic
- School of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Parham Daneshvar
- Department of Othopaedic Surgery, Queen’s University, Kingston, Ontario, Canada
| | - Ryan T. Bicknell
- Department of Othopaedic Surgery, Queen’s University, Kingston, Ontario, Canada
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15
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Tendon Transfers in Rotator Cuff Deficiency. OPER TECHN SPORT MED 2023. [DOI: 10.1016/j.otsm.2023.150986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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16
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Velasquez Garcia A, Osorio Valdivia P, Brito Ayet C, Mendez M. Latissimus Dorsi Transfer Combined with Subacromial Balloon Spacer for Bidirectional Rotator Cuff Deficiency. Arthrosc Tech 2022; 11:e2327-e2335. [PMID: 36632392 PMCID: PMC9827003 DOI: 10.1016/j.eats.2022.08.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 08/22/2022] [Indexed: 11/19/2022] Open
Abstract
Patients with massive, irreparable rotator cuff tears represent a challenge for treatment, particularly those with loss of external rotation and active elevation. In the cases of glenohumeral arthropathy, reverse shoulder arthroplasty combined with transfer of the latissimus dorsi and teres major tendons has improved active external rotation and overall patient outcomes. However, the reverse shoulder prosthesis could be better used as a second-line treatment in patients without arthropathy. Several joint-preserving surgical approaches have been described for irreparable cuff tears with no substantial differences in results. Although latissimus dorsi transfer has shown long-term clinical reliability and improved functional shoulder function in relatively young patients, isolated tendon transfer appears insufficient to restore range of motion in patients with a bidirectional deficit. The subacromial balloon spacer is an additional new treatment option. This surgical procedure describes an arthroscopic-assisted transfer of the latissimus dorsi tendon followed by the implantation of the subacromial balloon. This combination potentially addresses the bidirectional deficiency by restoring the shoulder external rotational coupling, improving the deltoid load, centering the humeral head, and protecting the transferred tendon from the subacromial compression stresses.
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Affiliation(s)
- Ausberto Velasquez Garcia
- Department of Orthopedic Surgery, Clinica Universidad de Los Andes, Santiago, Chile,Department of Orthopedic Surgery, Hospital Militar de Santiago, Santiago, Chile,Address correspondence to Ausberto Velasquez Garcia, M.D., Clinica Universidad de Los Andes, Av. Plaza 2501, Las Condes, Santiago 7620157, Chile.
| | | | - Cristián Brito Ayet
- Orthopaedic Department, Hospital Naval de Chile, Viña del Mar, Santiago, Chile
| | - Magdalena Mendez
- Resident of Orthopedic Surgery, Pontificia Universidad Catolica de Chile, Santiago, Chile
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17
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Premsiri A, Mahasupachai N, Chanlalit C. Arthroscopic-assisted lower trapezius transfer with peroneus longus graft for massive irreparable rotator cuff tear and glenohumeral joint instability: a case report. JSES REVIEWS, REPORTS, AND TECHNIQUES 2022; 2:539-545. [PMID: 37588471 PMCID: PMC10426571 DOI: 10.1016/j.xrrt.2022.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Affiliation(s)
- Arnakorn Premsiri
- Department of Orthopedics, Faculty of Medicine, Srinakharinwirot University, Nakhon Nayok, Thailand
| | - Nattakorn Mahasupachai
- Department of Orthopedics, Faculty of Medicine, Srinakharinwirot University, Nakhon Nayok, Thailand
| | - Cholawish Chanlalit
- Department of Orthopedics, Faculty of Medicine, Srinakharinwirot University, Nakhon Nayok, Thailand
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18
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Muench LN, Berthold DP, Kia C, Obopilwe E, Cote MP, Imhoff AB, Scheiderer B, Elhassan BT, Beitzel K, Mazzocca AD. Biomechanical comparison of lower trapezius and latissimus dorsi transfer for irreparable posterosuperior rotator cuff tears using a dynamic shoulder model. J Shoulder Elbow Surg 2022; 31:2392-2401. [PMID: 35671930 DOI: 10.1016/j.jse.2022.05.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 05/02/2022] [Accepted: 05/07/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND In the setting of irreparable posterosuperior rotator cuff tears (PSRCTs), lower trapezius transfer (LTT) may be anatomically better positioned for restoring the muscular force couple compared with latissimus dorsi transfer (LDT). The purpose of the study was to evaluate the effect of LTT and LDT on glenohumeral kinematics using a dynamic shoulder model. METHODS Ten fresh-frozen cadaveric shoulders (mean age: 56.5 ± 17.2 years) were tested using a dynamic shoulder simulator. The maximum abduction angle (MAA), superior humeral head migration (SHM), and cumulative deltoid forces (CDFs) were compared across 4 conditions: (1) native; (2) irreparable PSRCT; (3) LTT using an Achilles tendon allograft; and (4) LDT. MAA and SHM were measured using 3-dimensional motion tracking. CDF was recorded in real time throughout the dynamic abduction motion by load cells connected to actuators. RESULTS Compared to the native state, the PSRCT resulted in a significant decrease (Δ-24.1°; P < .001) in MAA, with a subsequent significant increase after LTT (Δ13.1°; P < .001) and LDT (Δ8.9°; P < .001). LTT achieved a significantly greater MAA than LDT (Δ4.2°; P = .004). Regarding SHM, both LTT (Δ-9.4 mm; P < .001) and LDT (Δ-5.0 mm; P = .008) demonstrated a significant decrease compared with the PSRCT state. LTT also achieved significantly less SHM compared with the LDT (Δ-4.4 mm; P = .011). Further, only the LTT resulted in a significant decrease in CDF compared with the PSRCT state (Δ-21.3 N; P = .048), whereas LTT and LDT showed similar CDF (Δ-11.3 N; P = .346). However, no technique was able to restore the MAA, SHM, and CDF of the native shoulder (P < .001, respectively). CONCLUSION LTT and LDT both achieved a significant increase in MAA along with significantly less SHM compared with the PSRCT state. Although LTT required significantly less compensatory deltoid forces compared with the PSRCT state, this was not observed for the LDT. Further, the LTT prevented loss of abduction motion and SHM more sufficiently. In the challenging treatment of irreparable PSRCTs, LTT may restore native glenohumeral kinematics more sufficiently, potentially leading to improved postoperative functional outcomes.
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Affiliation(s)
- Lukas N Muench
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany; Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT, USA.
| | - Daniel P Berthold
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany; Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT, USA
| | - Cameron Kia
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT, USA
| | - Elifho Obopilwe
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT, USA
| | - Mark P Cote
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT, USA
| | - Andreas B Imhoff
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | - Bastian Scheiderer
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | - Bassem T Elhassan
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Knut Beitzel
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany; Department of Shoulder Surgery, ATOS Clinic, Cologne, Germany
| | - Augustus D Mazzocca
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, CT, USA
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19
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Chiu CH, Yang CP, Tang HC, Weng CJ, Hsu KY, Chen ACY, Chan YS. Arthroscopic-Assisted Lower Trapezius Tendon Transfer With Autologous Semitendinosus Tendon and Long Head of Biceps Superior Capsule Reconstruction for Massive Irreparable Posterosuperior Rotator Cuff Tears. Arthrosc Tech 2022; 11:e1251-e1259. [PMID: 35936855 PMCID: PMC9353193 DOI: 10.1016/j.eats.2022.03.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 03/04/2022] [Indexed: 02/03/2023] Open
Abstract
We present a surgical technique combining arthroscopic-assisted lower trapezius tendon (LTT) transfer with autologous semitendinosus tendon and long head of biceps tendon (LHBT) superior capsule reconstruction (SCR) for massive irreparable posterosuperior rotator cuff tears. The patients are placed in the beach-chair position with the ipsilateral lower leg prepared simultaneously. After both tendons are harvested, 1 limb of a semitendinosus graft is fixed with the LTT via a Krakow suture. The LHBT is then fixed by an anchor 5 to 8 mm posterior to the bicipital groove and tenotomized distally. The transverse humeral ligament is released afterward to provide better visualization. A Beath pin is introduced from anterolateral portal, aiming at the bicipital groove, and drilled posteriorly until it exits at the infraspinatus footprint. Next, 4.5- and 8-mm cannulated drills are used sequentially to create a humeral tunnel. A shuttle suture passed through infraspinatus fascia in the back brings the EndoButton and looped semitendinosus graft from posterior to anterior of the humerus, until the EndoButton flips and is fixed inside the bicipital groove. The shoulder is placed in 45° abduction and 30° external rotation. The free limb of semitendinosus tendon is then sutured with LTT with the desired tension.
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Affiliation(s)
- Chih-Hao Chiu
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan,Bone and Joint Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan,Address correspondence to Chih-Hao Chiu, M.D., Ph.D., Department of Orthopedic Surgery, Taoyuan Chang Gung Memorial Hospital, No.123, Dinghu Rd., Guishan District, Taoyuan City 333, Taiwan.
| | - Cheng-Pang Yang
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan,Comprehensive Sports Medicine Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan,Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan,Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Hao-Che Tang
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan,Comprehensive Sports Medicine Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan,Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan,Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Chun-Jui Weng
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan,Comprehensive Sports Medicine Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan,Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan,Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Kuo-Yao Hsu
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan,Comprehensive Sports Medicine Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan,Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan,Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Alvin Chao-Yu Chen
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan,Comprehensive Sports Medicine Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan,Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan,Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Yi-Sheng Chan
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan,Comprehensive Sports Medicine Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan,Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan,Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Keelung, Taiwan
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20
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Editorial Commentary: Predictors of Best Outcomes After Latissimus Dorsi Transfer for Irreparable Rotator Cuff Tear. Arthroscopy 2022; 38:1831-1833. [PMID: 35660179 DOI: 10.1016/j.arthro.2022.03.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 03/29/2022] [Accepted: 03/31/2022] [Indexed: 02/02/2023]
Abstract
The management of patients with massive posterosuperior rotator cuff tears without glenohumeral arthritis remains a challenge to arthroscopic surgeons. A wide variety of treatment options have been described, including latissimus dorsi tendon transfer (LDTT) and lower trapezius tendon transfer. These tendon transfers have been utilized to rebalance the glenohumeral force couple for patients with massive or irreparable posterosuperior rotator cuff tears. Proponents of the latissimus dorsi tendon transfer have touted several theoretical advantages, including improvement of the shoulder fulcrum, optimization of the deltoid function, improved humeral head depression, and restoration of shoulder motion. Currently accepted contra-indications to LDTT include glenohumeral arthritis, irreparable subscapularis tear, axillary nerve palsy and/or deltoid insufficiency. However, few studies have investigated the ideal patient selection for LDTT, particularly as it relates to clinically significant outcomes. Recent literature suggests a high rate of complications and re-tear following LDTT, and studies suggest that older age, previous surgery, true pseuoparalysis, lower low pre-operative acromiohumeral interval (AHI) or AHI reversibility negatively impact results. Ultimately, candidates for tendon transfer should be carefully stratified according to their modifiable and non-modifiable risk factors, and surgeons should understand how pre-operative patient characteristics may affect the treatment options available for this unique patient population. In the setting of supraspinatus and infraspinatus deficiency, we prefer to utilize the lower trapezius tendon transfer, given its more predictable handling characteristics, ease of harvest, and greater function consistency compared to LDTT.
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21
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Abstract
Massive rotator cuff tears (MRCTs) present a particular challenge due to high rates of retear that can range from 18 to 94%, failure of healing after repair, and potential for irreparability. Management of MRCTs must take into consideration the patient's characteristics, clinical examamination and expectation, number and quality of muscle tendons units involved. Conservative treatment, arthroscopic long head of the biceps tenotomy, cuff debridement, partial repair, and superior capsule reconstruction are viable solutions to treat selected patients. The goal of tendon transfers is to achieve stable kinematic by restoring rotational strength and force coupling of the shoulder joint. The ideal candidate is a young, motivated patient with small degenerative changes of the glenohumeral joint, a massive irreparable cuff tear, significant atrophy, fatty infiltration, and functional deficit. Patients with posterosuperior massive tears have impaired shoulder function with external rotation weakness and eventually lag sign If the teres minor is affected. Latissimus dorsi transfer is the most used with results lasting for long follow-up and lower Trapezius transfer is becoming a surgical option. For anterosuperior tears, there is still controversial if pectoralis major is the best option when compared to latissimus dorsi although this last has a similar vector force with the supraspinatus tendon. Complications associated with tendon transfers include neurovascular injury, infection, and rupture of the transferred tendon.
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Affiliation(s)
- Antonio Cartucho
- Shoulder and Elbow Unit, Hospital Cuf Descobertas, Lisbon, Portugal
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McCormick JR, Menendez ME, Hodakowski AJ, Garrigues GE. Superior Capsule Reconstruction and Lower Trapezius Transfer for Irreparable Posterior-Superior Rotator Cuff Tear: A Case Report. JBJS Case Connect 2022; 12:01709767-202206000-00051. [PMID: 35696719 DOI: 10.2106/jbjs.cc.22.00098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
CASE A 49-year-old right-hand-dominant male weightlifter was referred with persistent left shoulder pain, weakness, and range of motion limitations after failed arthroscopic rotator cuff repair and subsequent arthroscopic debridement for a massive posterior-superior supraspinatus and infraspinatus tear. The patient underwent a superior capsular reconstruction (SCR) with lower trapezius (LT) transfer to re-establish rotator cuff function. CONCLUSION LT transfer in addition to SCR may be a promising modality to treat massive, irreparable posterior-superior rotator cuff tears in young adults. LT transfer can optimize external rotation, whereas SCR may more adequately address pain and forward elevation.
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Affiliation(s)
| | - Mariano E Menendez
- Rush University Medical Center, Department of Orthopedic Surgery, Chicago, Illinois
| | | | - Grant E Garrigues
- Rush University Medical Center, Department of Orthopedic Surgery, Chicago, Illinois
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Marigi EM, Harstad C, Elhassan B, Sanchez-Sotelo J, Wieser K, Kriechling P. Reverse shoulder arthroplasty after failed tendon transfer for irreparable posterosuperior rotator cuff tears. J Shoulder Elbow Surg 2022; 31:763-771. [PMID: 34592412 DOI: 10.1016/j.jse.2021.08.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/12/2021] [Accepted: 08/20/2021] [Indexed: 02/01/2023]
Abstract
BACKGROUND Tendon transfers (TTs) can be successful for the management of selected posterosuperior functionally irreparable rotator cuff tears. However, when these procedures fail to provide adequate pain relief or functional improvement, reverse shoulder arthroplasty (RSA) is commonly considered the next treatment option. The effect of prior TT on RSA remains largely unknown. The purposes of this investigation were to evaluate the outcomes of RSA after previous TT performed for posterosuperior functionally irreparable rotator cuff tears and to determine the effect of various TT types on RSA. METHODS A retrospective review of 2 institutional databases identified 33 patients who underwent RSA implantation between 2006 and 2019 with a previous failed tendon transfer (FTT) of the shoulder and at least 2 years of clinical follow-up. FTTs included 21 latissimus dorsi transfers, 6 latissimus dorsi and teres major (LD-TM) transfers, and 6 lower trapezius transfers. RSAs were performed at an average of 5.5 years (range, 0.3-28 years) after FTT, with a mean follow-up period of 4.1 ± 2.0 years. Outcomes evaluated included the visual analog scale pain score, range of motion, absolute Constant-Murley score (CS) and relative CS, American Shoulder and Elbow Surgeons score, Subjective Shoulder Value, complications, and implant survivorship free of reoperation or revision. RESULTS RSA significantly improved pain and function, with improvements in the visual analog scale pain score (6.2 preoperatively vs. 2.2 at most recent follow-up, P < .001), active elevation (85° vs. 111°, P < .001), American Shoulder and Elbow Surgeons score (51 vs. 74, P = .001), absolute CS (34 vs. 48, P = .003), and relative CS (42% vs. 59%, P = .002), exceeding the minimal clinically important difference threshold. There were 7 complications (21%) across the entire cohort, with dislocation (n = 3, 9.1%) as the most common complication. Comparison across TT groups showed that LD-TM transfer had the highest complication rate (3 shoulders, 50%), followed by lower trapezius transfer (1 shoulder, 16.7%); latissimus dorsi transfer had the lowest rate (3 shoulders, 14.3%; P = .037). Survivorship free of revision or reoperation was estimated to be 90.1% at 1 year, 84.9% at 2 years, and 71.2% at 5 years, with no difference among TT groups (P = .654). CONCLUSIONS RSA can serve as a viable salvage option for FTT procedures. At mid-term follow-up, RSA led to significant improvements in pain, range of motion, and patient-reported outcomes. Patients with prior LD-TM transfers may have a higher complication rate, but no other differences were found between TT groups.
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Affiliation(s)
- Erick M Marigi
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Chelsea Harstad
- Department of Orthopedic Surgery, Mass General Hospital, Boston, MA, USA
| | - Bassem Elhassan
- Department of Orthopedic Surgery, Mass General Hospital, Boston, MA, USA
| | | | - Karl Wieser
- Department of Orthopaedics, Balgrist University Hospital, Zürich, Switzerland
| | - Philipp Kriechling
- Department of Orthopaedics, Balgrist University Hospital, Zürich, Switzerland
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Chan K, Langohr GDG, Athwal GS, Johnson JA. The biomechanical effectiveness of tendon transfers to restore rotation after reverse shoulder arthroplasty: latissimus versus lower trapezius. Shoulder Elbow 2022; 14:48-54. [PMID: 35154402 PMCID: PMC8832707 DOI: 10.1177/1758573220946257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 07/06/2020] [Accepted: 07/07/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND The purpose of this biomechanical simulator study was primarily to compare latissimus dorsi to lower trapezius tendon transfers for active external rotation and the pectoralis major transfer for internal rotation after reverse shoulder arthroplasty. Secondarily, the role of humeral component lateralization on transfer function was assessed. METHODS Eight rotator cuff deficient cadavers underwent reverse shoulder arthroplasty with an adjustable lateralization humeral component. Latissimus dorsi and lower trapezius transfers were compared for active external rotation restoration and pectoralis major transfer for internal rotation restoration. Internal rotation/external rotation torques were measured for each lateralization at varying abduction and internal rotation/external rotation ranges-of-motion. RESULTS The lower trapezius transfer generated, on average, 1.6 ± 0.2 nm more torque than the latissimus dorsi transfer (p < 0.001). The internal rotation/external rotation torques of all tendon transfers decreased as abduction increased (p < 0.01). At 0° elevation, reverse shoulder arthroplasty humeral component lateralization had a significant positive effect on tendon transfer torque at 60° internal rotation and external rotation (p < 0.01). DISCUSSION Both the lower trapezius and the latissimus dorsi tendon transfers were effective in restoring active external rotation after reverse shoulder arthroplasty; however, the lower trapezius generated significantly more torque. Additionally, the pectoralis major transfer was effective in restoring active internal rotation. All tendon transfers were optimized with greater humeral component lateralization.
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Affiliation(s)
| | | | - George S Athwal
- George S Athwal, St Joseph's Health Care, PO BOX 5777, STN B London, Ontario, Canada N6A 4V2.
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Ye L, Han D, Zhang Q, Yang X, Tung TH, Zhou X. Early Efficacy Assessment of Arthroscopic Lower Trapezius Transfer With Tendon Autograft in the Management of Massive Irreparable Posterosuperior Rotator Cuff Tears. Front Surg 2022; 8:796359. [PMID: 35071315 PMCID: PMC8782238 DOI: 10.3389/fsurg.2021.796359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 12/08/2021] [Indexed: 11/21/2022] Open
Abstract
Objectives: To explore the indications and surgical techniques for arthroscopic lower trapezius transfer (LTT) with tendon autograft in managing massive irreparable posterosuperior rotator cuff tears (PSRCTs); to validate the feasibility, safety, and efficacy of this technique. Methods: This study retrospectively enrolled 23 patients with massive irreparable PSRCTs, admitted to and followed up by the Taizhou Hospital of Zhejiang province between July 2020 and April 2021, and treated with ipsilateral LTT and ipsilateral hamstring tendon autograft. The control group consisted of 23 patients with massive RCTs receiving conventional repair procedures within the same frame. Follow-up data at the preoperative visit, and postoperative month 3 were collected to assess the active range of motion, Constant–Murley Score (CMS),American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES), University of California, Los Angeles (UCLA)shoulder score, visual analog scale (VAS)and the post-operative MRI results, all of which could provide a comprehensive postoperative early efficacy assessment. Results: Three months follow-up visits were completed for all patients, revealing improvements in all aspects compared to the preoperative state, with no complications, such as postoperative infection of surgical sites and nerve injuries of infection and nerve injury. The distribution of active shoulder range of motion of patients and function scores with two types of operation was as follow: angles of flexion and lifting (130.00° ± 31.55° vs. 90.78° ± 19.85°), abduction (123.26° ± 30.47°vs. 85.87° ± 18.74°), external rotation at side (101.74° ± 14.74° vs. 91.74° ± 11.92°), external rotation at 90° abduction (41.52° ± 21.97° vs. 24.57° ±12.60°), VAS (0.74± 0.81 vs. 1.87 ±0.87), CMS(56.3 ± 13.01 vs. 48.30 ± 8.38), UCLA shoulder score (24.04 ± 2.88 vs.20.96 ± 3.47), ASES (72.91 ± 9.99 vs.60.74 ± 8.84). Significantly better improvements were found in the study group on month 3.19 of 23 patients in the study group and 17 of 23 patients in the control group underwent MRI on the 3 months follow up. Retear was found in only one patient who had grade 4 subscapularis tendon injury, However, revision was not performed due to postoperative pain relief and functional improvement. Conclusion: Compared to conventional repair procedures, in the early postoperative period, LTT with tendon autograft could achieve better pain relief, more rapid motor functional recovery, and higher functional scores for massive irreparable PSRCTs.
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Affiliation(s)
- Lingchao Ye
- Department of Sports Medicine, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Dawei Han
- Department of Sports Medicine, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Qingguo Zhang
- Department of Sports Medicine, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Xiangdong Yang
- Department of Sports Medicine, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Tao-Hsin Tung
- Public Laboratory, Evidence-Based Medicine Center, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Xiaobo Zhou
- Department of Sports Medicine, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
- *Correspondence: Xiaobo Zhou
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26
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Rotator cuff irreparability or failure of repair (re-tear): technical note on middle trapezius tendon transfer for reproduction of supraspinatus function. J Exp Orthop 2021; 8:105. [PMID: 34797448 PMCID: PMC8603989 DOI: 10.1186/s40634-021-00426-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 11/02/2021] [Indexed: 11/10/2022] Open
Abstract
Purpose Based on its close anatomic features and nearly-collinear force vector to those of supraspinatus muscle, the current article describes a technique of middle trapezius tendon transfer for reproduction of supraspinatus function in the context of rotator cuff irreparability/re-tear management. Methods While seating the patient in beach-chair position, arthroscopic gleno-humeral examination and sub-acromial decompression are initially performed. Hamstring tendons are harvested and fashioned as flattened quadruple sheet. Through McKenzie approach, infraspinatus and subscapularis tendons are repaired. Then, medial half of middle trapezius insertion tendon is harvested from most medial 5-6 cm of the scapular spine. Through McKenzie approach, hamstring sheet is retrieved via a sub-trapezius/sub-acromial corridor from the scapular wound. Hamstring sheet is re-attached to cuff footprint by double row/suture bridge repair configuration. While retracting the scapula and placing gleno-humeral joint in 45O-abduction/45O-external rotation, hamstring sheet is re-attached to released middle trapezius tendon by non-absorbable sutures. Finally, tendon reconstruct is dynamically-tested in different positions of range of motion. Results Transfer of medial portion of middle trapezius insertion tendon (lengthened by interposition hamstring tendon sheet) to cuff footprint was technically feasible. Dynamic testing showed smooth sub-acromial gliding motion of the tendon reconstruct. Conclusion For reproduction of supraspinatus function, hamstring tendon augmented-middle trapezius tendon transfer to cuff footprint heralds a number of technical and biomechanical advantages; thus offering a potential effective modality of cuff irreparability/re-tear management in relatively young patients of high functional demands. However, current description should be investigated in further biomechanical and clinical studies to validate its long-term outcomes. Supplementary Information The online version contains supplementary material available at 10.1186/s40634-021-00426-y.
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Kucirek NK, Hung NJ, Wong SE. Treatment Options for Massive Irreparable Rotator Cuff Tears. Curr Rev Musculoskelet Med 2021; 14:304-315. [PMID: 34581991 PMCID: PMC8497660 DOI: 10.1007/s12178-021-09714-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/03/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE OF REVIEW Massive irreparable rotator cuff tears present a significant challenge to the orthopedic surgeon. No single treatment, particularly among joint-preserving options, has been shown to be superior. The purpose of this review is to discuss recent advances in the treatment of massive irreparable rotator cuff tears, including partial repair with and without graft augmentation, interposition grafts, superior capsule reconstruction, subacromial balloon spacers, tendon transfer, and reverse total shoulder arthroplasty. We will also offer guidance on surgical indications based on our clinical experience. RECENT FINDINGS Partial repair may offer reasonable clinical improvement for patients with lower preoperative function despite high re-tear rates. Additionally, several types of interposition grafts have shown promising short-term results and may outperform repair alone. Subacromial balloon spacers may lead to clinical improvement, especially in patients without glenohumeral osteoarthritis or pseudoparalysis, and recently received FDA approval for use in the USA. Superior capsule reconstruction is a technically demanding procedure that appears to produce excellent short-term results particularly when performed at high volume, but long-term studies in heterogeneous study groups are needed. Tendon transfers improve function by restoring force coupling in the shoulder, offering a promising option for younger patients. Reverse total shoulder arthroplasty (RTSA) is a reliable option for treatment of irreparable cuff tears in elderly patients with lower functional demands. Irreparable cuff tears remain a difficult condition to treat. Recommended treatment for younger patients without glenohumeral osteoarthritis is particularly controversial. For older patients with low-demand lifestyles and glenohumeral osteoarthritis, RTSA is an effective treatment option. For all discussed procedures, patient selection appears to play a critical role in clinical outcomes.
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Affiliation(s)
- Natalie K. Kucirek
- School of Medicine, University of California, San Francisco, San Francisco, CA USA
| | - Nicole J. Hung
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA USA
| | - Stephanie E. Wong
- Department of Orthopaedic Surgery, University of California, San Francisco, 1500 Owens Street, San Francisco, CA 94158 USA
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Broida SE, Sweeney AP, Gottschalk MB, Woodmass JM, Wagner ER. Clinical outcomes of latissimus dorsi tendon transfer and superior capsular reconstruction for irreparable rotator cuff tears: a systematic review. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2021; 32:1023-1043. [PMID: 34370112 DOI: 10.1007/s00590-021-03046-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 04/25/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Functionally irreparable rotator cuff tears (FIRCTs) present an ongoing challenge to the orthopedic surgeon. The aim of this systematic review was to critically compare the outcomes of three latissimus dorsi tendon transfer (LDT) techniques and two superior capsular reconstruction (SCR) techniques in treatment of FIRCTs. METHODS A systematic review of studies evaluating the outcome of FIRCT treatment was performed via a search of four databases in April 2020. Each included study was reviewed in duplicate by two reviewers for evaluation of methodological quality. The treatments analyzed were arthroscopic LDT (aLDT), open LDT Gerber technique (oLDTG), open LDT L'Episcopo technique (oLDTL), SCR with allograft (SCR-Allo), and SCR with autograft (SCR-TFL). Demographics, range of motion, patient-reported outcome measures, radiographic acromiohumeral distance (AHD), treatment failures, and revisions were recorded. RESULTS Forty-six studies (1287 shoulders) met criteria for inclusion. Twenty-three studies involved open latissimus transfer, with 445 shoulders undergoing oLDTG with mean follow-up of 63.2 months and 60 patients undergoing oLDTL with mean follow-up of 51.8 months. Ten studies (n = 369, F/U 29.2mo) reported on aLDT. Seven studies (n = 253, F/U 16.9mo) concerned SCR-Allo, and six studies (n = 160, F/U 32.mo) reported on SCR-TFL. Range of motion and subjective outcome scores improved in all techniques with no differences across treatments. Both SCR methods provided greater improvement in AHD than open LDT methods (p < 0.01). The re-tear rates were lower in both oLDT groups compared to the SCR groups (p = 0.03). Clinical failure rates were higher in the SCR-Allo and oLDTG groups, while overall treatment failures were lowest in oLDTL compared to all four other groups. CONCLUSION SCR techniques were associated with improved short-term radiographic acromiohumeral distance, while the open LDT techniques had lower tendon re-tear and treatment failure rates. All techniques resulted in improved clinical outcomes and pain relief compared to preoperative levels with no differences across techniques. LEVEL OF EVIDENCE IV Systematic review of case series and cohort studies.
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Affiliation(s)
- Samuel E Broida
- Department of Orthopaedic Surgery, Emory University, 59 S Executive Park NW, Atlanta, GA, 30329, USA
| | - Aidan P Sweeney
- Department of Orthopaedic Surgery, Emory University, 59 S Executive Park NW, Atlanta, GA, 30329, USA
| | - Michael B Gottschalk
- Department of Orthopaedic Surgery, Emory University, 59 S Executive Park NW, Atlanta, GA, 30329, USA
| | - Jarret M Woodmass
- Department of Orthopaedic Surgery, PanAm Clinic, University of Manitoba, Winnipeg, Canada
| | - Eric R Wagner
- Department of Orthopaedic Surgery, Emory University, 59 S Executive Park NW, Atlanta, GA, 30329, USA.
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Checchia CS, Silva LAD, Sella GDV, Fregoneze M, Miyazaki AN. Current Options in Tendon Transfers for Irreparable Posterosuperior Rotator Cuff Tears. Rev Bras Ortop 2021; 56:281-290. [PMID: 34239191 PMCID: PMC8249074 DOI: 10.1055/s-0040-1709988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 01/10/2020] [Indexed: 10/28/2022] Open
Abstract
Massive irreparable posterosuperior rotator-cuff tears are debilitating lesions that usually require surgical treatment. Even though there is no consensus regarding the best surgical technique, tendinous transfers around the shoulder are the most commonly performed procedures. The latissimus dorsi tendon remains the most commonly used, but different modifications to the original technique have been shown to minimize complications and to improve functional results and satisfaction. Other techniques, such as the transfer of the lower trapezius tendon, are promising and should be considered, especially for patients with isolated loss of external rotation. The present paper is a literary review regarding tendon transfers for irreparable posterosuperior rotator-cuff tears.
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Affiliation(s)
- Caio Santos Checchia
- Departamento de Ortopedia e Traumatologia, Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, Brasil
| | - Luciana Andrade da Silva
- Departamento de Ortopedia e Traumatologia, Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, Brasil
| | - Guilherme do Val Sella
- Departamento de Ortopedia e Traumatologia, Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, Brasil
| | - Marcelo Fregoneze
- Departamento de Ortopedia e Traumatologia, Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, Brasil
| | - Alberto Naoki Miyazaki
- Departamento de Ortopedia e Traumatologia, Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, Brasil
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30
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Biomechanical bases for tendon transfers at the shoulder. HAND SURGERY & REHABILITATION 2021; 41S:S29-S33. [PMID: 34217900 DOI: 10.1016/j.hansur.2018.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 05/19/2018] [Accepted: 06/14/2018] [Indexed: 11/23/2022]
Abstract
Paralysis of the muscles around the shoulder is a debilitating condition that continues to be a very challenging problem. It leads to an inability to position one's hand in space. This greatly compromises the function of the upper limb and can lead to chronic shoulder pain due to inferior glenohumeral subluxation. Management of these complex problems has two main objectives: (i) stabilize the glenohumeral joint to decrease pain related to inferior glenohumeral subluxation; (ii) restore active range of motion in external rotation, abduction, and internal rotation. All the shoulder muscles contract in a coordinated and complex manner to allow the shoulder to move through a complete range of motion. Understanding how the different muscle groups coordinate their contractions and the basic biomechanical principles of tendon transfers is paramount before considering doing a tendon transfer around the shoulder. To function properly, a tendon transfer should have a similar line of pull (similar moment arm), similar tension and similar excursion to that of the muscle it replaces; one tendon transfer should replace only one function and the donor (transferred) muscle should have normal muscle strength (at least M4).
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31
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Werthel JD, Schoch BS, Hooke A, Sperling JW, An KN, Valenti P, Elhassan B. Biomechanical effectiveness of tendon transfers to restore active internal rotation in shoulder with deficient subscapularis with and without reverse shoulder arthroplasty. J Shoulder Elbow Surg 2021; 30:1196-1206. [PMID: 32919048 DOI: 10.1016/j.jse.2020.08.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 08/13/2020] [Accepted: 08/17/2020] [Indexed: 02/01/2023]
Abstract
BACKGROUND Loss of active shoulder internal rotation can be very disabling. Several tendon transfers have been described for the management of an irreparable subscapularis (SSC) tear. The purpose of this study was to determine and compare the internal rotation moment arm (IRMA) of the sternal head of the pectoralis major (PM), latissimus dorsi (LD), and teres major (TM) when transferred to different insertion sites to restore shoulder internal rotation with and without reverse shoulder arthroplasty (RSA). METHODS Six fresh-frozen right hemithoraces were prepared and evaluated using a custom tendon transfer model to determine the IRMA of different tendon transfers using the tendon and joint displacement method. Five tendon-transfer pairs were modeled using a single suture and tested before and after implantation of an RSA (Comprehensive; Zimmer-Biomet, Warsaw, IN, USA): PM to the insertion site of the SSC, LD to the anterior insertion site of the supraspinatus (SSP) tendon on the greater tuberosity, LD to SSC, TM to SSP, and TM to SSC. The SSC was not repaired at the end of the RSA procedure to simulate an SSC deficiency. The PM transfer was passed under the conjoined tendon when tested on the intact shoulder and above the conjoined tendon when tested with an RSA. RESULTS Tendon transfers were shown to have a significant effect on IRMA. The effect of transferred tendons was significantly affected by the position of the humerus. With the humerus adducted, the IRMA of the TM-SSP (14.1 mm ± 3.1 mm) was significantly greater than the other transfers. With the humerus abducted to 90°, the IRMAs of the LD-SSP (30.0 mm ± 5.4 mm) and TM-SSP (28.4 mm ± 6.6 mm) were significantly greater than the IRMAs of other transfer options. The IRMA of the native shoulder differed significantly from that of the RSA state for all tendon transfers. With the humerus adducted to the side of the body, the IRMA of the RSA PM-SSC transfer was significantly greater than that without an RSA (19.0 mm ± 6.4 mm vs. 7.1 mm ± 0.9 mm), demonstrating increased efficiency for internal rotation in the RSA state. CONCLUSION Tendon transfers to restore shoulder internal rotation differ in effectiveness and may be affected by arm position and by implantation of a lateralized humerus/lateralized glenoid RSA. The LD potentially results in superior restoration of shoulder internal rotation in a native shoulder (given the risk of nerve compression with the TM transfer) compared with PM and should be considered as a potential tendon transfer to restore internal rotation in selected patients. In combination with a lateralized humerus/lateralized glenoid RSA, the fulcrum provided by the biomechanics of the semiconstrained implant allows the PM transfer to become a more efficient tendon transfer to restore active internal rotation.
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Affiliation(s)
- Jean-David Werthel
- Department of Orthopedic Surgery, Hopital Ambroise Paré, Boulogne-Billancourt, France.
| | - Bradley S Schoch
- Department of Orthopedic Surgery, Mayo Clinic, Jacksonville, FL, USA
| | - Alex Hooke
- Department of Biomechanics, Mayo Clinic, Rochester, MN, USA
| | | | - Kai-Nan An
- Department of Biomechanics, Mayo Clinic, Rochester, MN, USA
| | - Philippe Valenti
- Department of Orthopedic Surgery, Paris Shoulder Unit, Paris, France
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32
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Turkmen I, Koraman E, Poyanlı O. Latissimus dorsi tendon transfers: a historical journey. SICOT J 2021; 7:9. [PMID: 33683194 PMCID: PMC7938722 DOI: 10.1051/sicotj/2021009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 02/10/2021] [Indexed: 11/15/2022] Open
Abstract
Several latissimus dorsi tendon transfer techniques for shoulder problems have been previously described and developed. These techniques involve the transfer in obstetric palsy, transfer in irreparable posterosuperior rotator cuff tears and subscapularis tears, and transfer in reverse shoulder arthroplasty. We detail the differences in planning and surgery and the need for different approaches. This historical and technical description provided in this study will benefit surgeons wishing to use the procedure.
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Affiliation(s)
- Ismail Turkmen
- Associate Professor, Department of Orthopaedics and Traumatology, Goztepe City Hospital, Egitim mh Dr. Erkin cd, 34722 Kadikoy, Istanbul, Turkey
| | - Emre Koraman
- MD, Department of Orthopaedics and Traumatology, Goztepe City Hospital, 34722 Kadikoy, Istanbul, Turkey
| | - Oguz Poyanlı
- Professor, Department of Orthopaedics and Traumatology, Goztepe City Hospital, 34722 Kadikoy, Istanbul, Turkey
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33
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Stone MA, Kane LT, Ho JC, Namdari S. Short-Term Outcomes of Lower Trapezius Tendon Transfer With Achilles Allograft for Irreparable Posterosuperior Rotator Cuff Tears. Arthrosc Sports Med Rehabil 2021; 3:e23-e29. [PMID: 33615244 PMCID: PMC7879194 DOI: 10.1016/j.asmr.2020.08.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 08/18/2020] [Indexed: 11/19/2022] Open
Abstract
Purpose To evaluate functional outcomes, return to work, and reoperations associated with lower trapezius tendon transfer (LTT) for irreparable rotator cuff tears. Methods This is a retrospective study performed by a single surgeon with minimum 1-year follow-up. LTT was performed using an open (n = 9; 60%) or arthroscopically assisted (n = 6, 40%) technique. Outcomes included failure rate, range of motion, satisfaction, return to work, and pre- and postoperative functional scores, as well as American Shoulder and Elbow Surgeons score, Single Assessment Numeric Evaluation, and the Simple Shoulder Test. Results Fifteen patients were included. LTT was performed using an open or arthroscopically assisted technique. Mean age was 52 (range 31-62 years), 13 (92.9%) were manual laborers, and 9 (60%) had a worker’s compensation claim. Three patients (20%) underwent conversion to reverse shoulder arthroplasty. Of the remaining 12 patients, there were significant improvements in American Shoulder and Elbow Surgeons, Single Assessment Numeric Evaluation, and Simple Shoulder Test at 24.1 ± 9.6 (range 12-38.5) months. Active forward elevation, abduction, and external rotation were all significantly improved. Postoperative satisfaction ratings indicated 67% of the revision-free cohort was “very satisfied” and 33% was “somewhat satisfied” with their outcome. Seven (50%) returned to full duty, 4 (28.6%) returned to modified duty, and 3 (21.4%) were unable to return to work. Two patients (open techniques) underwent a superficial wound debridement for seroma and wound breakdown. Conclusions LTT results in successful clinical outcomes with a high rate of return to work in a challenging patient population. However, only 67% of patients rated themselves as “very satisfied,” and 20% of patients were revised to reverse shoulder arthroplasty before 1 year. Limited preoperative active forward elevation (<90°) appears to predict poor functional results and risk for reoperation. Level of Evidence Level IV, therapeutic case series.
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Affiliation(s)
| | | | | | - Surena Namdari
- Address correspondence to Surena Namdari, M.D., M.Sc., Associate Professor of Orthopaedic Surgery, Rothman Orthopaedic Institute, Thomas Jefferson University, Shoulder & Elbow Surgery, 925 Chestnut St., 5th floor, Philadelphia, PA 19107.
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Zheng X, Tang K. [Research progress of treatment for massive rotator cuff tears]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2021; 35:8-13. [PMID: 33448192 DOI: 10.7507/1002-1892.202004056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective To review the research progress of treatment for massive rotator cuff tears. Methods The domestic and foreign literature about the treatment of massive rotator cuff tears was reviewed. The methods and effectiveness were extensively summarized. Results The treatment of massive rotator cuff tears still needs long-term research to promote its continuous improvement. The main goal of treatment is to relieve the symptoms and improve the shoulder joint function. With the development of arthroscopic technique, arthroscopic repair of rotator cuff tears has become a mature surgical protocol. Among these techniques, superior capsule reconstruction and patch augmentation for massive rotator cuff tears acquire more attention in recent years. As for rotator cuff arthropathy, reverse shoulder arthroplasty is considered to be a final choice. Conclusion Surgical treatment is the main choice for massive rotator cuff tears. Patients' age and muscle condition should be taken into consideration to decide the surgical technique.
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Affiliation(s)
- Xiaolong Zheng
- Department of Sports Medicine Center, the First Affiliated Hospital of the Army Medical University of Chinese PLA, Chongqing, 400038, P.R.China
| | - Kanglai Tang
- Department of Sports Medicine Center, the First Affiliated Hospital of the Army Medical University of Chinese PLA, Chongqing, 400038, P.R.China
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Neyton L, Gossing L, Gasbarro G, Kirsch JM. Modified L'Episcopo tendon transfer for isolated loss of active external rotation. J Shoulder Elbow Surg 2020; 29:2587-2594. [PMID: 32669198 DOI: 10.1016/j.jse.2020.03.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 02/01/2023]
Abstract
BACKGROUND Patients with isolated loss of active external rotation (ILER) but preserved active forward elevation have recently been identified as a rare and distinct clinical entity. The modified L'Episcopo procedure attempts to restore horizontal muscle balance and restore active external rotation. METHODS A retrospective study was performed for all patients with ILER and preserved forward elevation with Hamada stage ≤2 changes undergoing the modified L'Episcopo tendon transfer. Preoperative rotator cuff fatty infiltration and morphology was reported. Clinical, radiographic, and functional outcomes were recorded preoperatively and compared to postoperative outcomes at a minimum of 24 months' follow-up. RESULTS Nine patients (8 male, 1 female) with a mean age of 58.4 years (range, 51-67 years) were evaluated at a mean follow-up of 64.3 months (range, 24-126 months). Significant improvement was demonstrated in active external rotation with the arm at the side (mean increase of 47°; range, 30°-60°, P = .004) and at 90° abduction (mean increase of 41°; range, 20°-70°, P = .004). The mean Constant score and pain score significantly improved at final follow-up (P = .004). All patients were either very satisfied or satisfied, with a mean subjective shoulder value of 74% (range, 60%-99%). CONCLUSION In appropriately selected patients with ILER and preserved active forward elevation, the modified L'Episcopo procedure can restore horizontal muscle balance and produce significant improvements in active external rotation, Constant score, and pain.
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Affiliation(s)
- Lionel Neyton
- Ramsay Générale de Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique Santy, Lyon, France.
| | - Louis Gossing
- Ramsay Générale de Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique Santy, Lyon, France
| | - Gregory Gasbarro
- Orthopaedic Specialty Hospital, Mercy Medical Center, Baltimore, MD, USA
| | - Jacob M Kirsch
- Departments of Orthopaedic Surgery & Shoulder/Elbow Surgery, The Rothman Institute-Thomas Jefferson, Philadelphia, PA, USA
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Arthroscopic-Assisted Lower Trapezius Tendon Transfer for Massive Irreparable Posterosuperior Rotator Cuff Tears Using an Achilles Tendon-Bone Allograft. Arthrosc Tech 2020; 9:e1759-e1766. [PMID: 33294337 PMCID: PMC7695616 DOI: 10.1016/j.eats.2020.07.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 07/28/2020] [Indexed: 02/03/2023] Open
Abstract
The lower trapezius tendon (LTT) transfer has been described for the management of irreparable posterosuperior rotator cuff tears. Here we describe our technique of an arthroscopic-assisted LTT transfer using an Achilles tendon-bone allograft. This technique allows for augmentation of the tendon transfer using an Achilles tendon allograft while also keeping the calcaneal bone insertion, which allows for added bony fixation into the humerus and also minimizing the risk of the "killer turn" phenomenon at the aperture of fixation.
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Feasibility of lower trapezius transfer extended by the infraspinatus fascia for restoration of external rotation in irreparable posterosuperior rotator cuff tears: an anatomical study. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2020; 31:661-667. [PMID: 33098460 DOI: 10.1007/s00590-020-02817-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 10/15/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE Lower trapezius (LT) transfer using Achilles tendon allograft or semitendinosus autograft is effective in restoring external rotation in massive irreparable posterosuperior rotator cuff tears (RCT). The purpose of this study was to evaluate if the infraspinatus fascia (IF) could be used in LT transfer to extend the LT tendon. METHODS Eight fresh-frozen whole-body cadavers were dissected using both shoulders, beach chair position. A 2.5-3 cm wide bundle of the IF was dissected, from the inferior angle of the scapula up to the insertion of the LT which was then detached subperiosteally in continuity with the fascia. The extended tendon was reinforced with sutures and brought to the center of the footprint of the supraspinatus on the humerus. We measured: (a) the distance between the insertion of the LT on the scapula and the inferior angle of the scapula, estimating the length of the IF that can be harvested, (b) the distance between the insertion of the LT on the scapula and the center of footprint of the infrastinatus on the humerus, estimating the distance needed to be covered by the graft (c) the length of the extended tendon between the center of footprint of the infrastinatus on the humerus (fixation point) and its free end, estimating the length available for fixation. RESULTS The mean length of the fascia that can be harvested is 125.56 mm. The mean distance that needs to be covered by the graft is 100 mm. The extended tendon is long enough leaving 24.69 mm for fixation. CONCLUSIONS The transfer of the LT extended with the IF on the footprint of the infraspinatus is feasible. It could be a viable alternative to the currently used grafts in LT transfer in irreparable posterosuperior RCT.
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Outcome of arthroscopically assisted lower trapezius transfer to reconstruct massive irreparable posterior-superior rotator cuff tears. J Shoulder Elbow Surg 2020; 29:2135-2142. [PMID: 32573447 DOI: 10.1016/j.jse.2020.02.018] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 02/14/2020] [Accepted: 02/20/2020] [Indexed: 02/01/2023]
Abstract
BACKGROUND The purpose of this study is to report the outcome of arthroscopically assisted lower trapezius transfer to reconstruct irreparable posterior-superior rotator cuff tear. METHODS Forty-one consecutive patients with irreparable posterior-superior rotator cuff tears who underwent an arthroscopically assisted transfer of the lower trapezius transfer were included in this study. The patients' average age was 52 years (range 37-71), and average follow-up was 14 months (range 6-19 months). Nineteen patients had true pseudoparalysis preoperatively, whereas 66% had a prior failed rotator cuff repair. Outcome measures included visual analog scale (VAS) pain score, range of motion, Subjective Shoulder Value (SSV), and Disabilities of the Arm, Shoulder, and Hand (DASH) score. RESULTS Thirty-seven (90%) patients had significant improvement of all outcome scores: VAS, SSV, and DASH. The presence of a subscapularis tear did not affect the outcome. However, 3 patients who had preoperative rotator cuff arthropathy changes of the shoulder had persistent pain and limited range of motion of the shoulder after surgery, and 2 of them underwent reverse shoulder arthroplasty. Two additional patients had a traumatic rupture of the transfer as a result of fall (at 5 and 8 months postop). One underwent revision arthroscopic repair and did well after surgery, and the other had good pain relief but recurrent weakness and limited range of motion, and elected not to have a revision surgery. CONCLUSIONS Arthroscopic-assisted lower trapezius transfer may lead to a good outcome in patients with massive irreparable posterior-superior rotator cuff tears, including patients with pseudoparalysis. The presence of an associated reparable subscapularis tear did not affect the outcome.
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Ghoraishian M, Stone MA, Elhassan B, Abboud J, Namdari S. Techniques for lower trapezius tendon transfer for the management of irreparable posterosuperior rotator cuff tears. J Orthop 2020; 22:331-335. [PMID: 32884205 DOI: 10.1016/j.jor.2020.08.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 08/12/2020] [Indexed: 10/23/2022] Open
Abstract
Irreparable posterosuperior rotator cuff tears are a challenging treatment problem. Several tendon transfers have been described for the treatment of irreparable tears. Recently the lower trapezius (LT) tendon transfer has grown in popularity. This procedure has shown promise in biomechanical studies, improving the external rotation moment arm at the side. This transfer may be done in several ways, including an open approach with an acromial osteotomy, mini-open, and arthroscopic-assisted. The purpose of this paper is to review the current evidence and rationale for the use of the LT transfer and to describe the available techniques.
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Affiliation(s)
- Mohammad Ghoraishian
- Rothman Orthopaedic Institute- Thomas Jefferson University, Philadelphia, PA 19107, USA
| | | | | | - Joseph Abboud
- Rothman Orthopaedic Institute- Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Surena Namdari
- Rothman Orthopaedic Institute- Thomas Jefferson University, Philadelphia, PA 19107, USA
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Woodmass JM, Wagner ER, Chang MJ, Welp KM, Grubhofer F, Higgins LD, Warner JJP. Arthroscopic lower trapezius tendon transfer provides equivalent outcomes to latissimus dorsi transfer in the treatment of massive posterosuperior rotator cuff tears. J ISAKOS 2020. [DOI: 10.1136/jisakos-2019-000341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Wagner ER, Elhassan BT. Surgical Management of Massive Irreparable Posterosuperior Rotator Cuff Tears: Arthroscopic-Assisted Lower Trapezius Transfer. Curr Rev Musculoskelet Med 2020; 13:592-604. [PMID: 32661919 DOI: 10.1007/s12178-020-09657-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE OF THE REVIEW Functionally irreparable rotator cuff tears (FIRCTs) remain one of the most challenging pathologies treated in the shoulder. The lower trapezius transfer represents a very promising treatment option for posterosuperior FIRCT. This article reviews the role for the lower trapezius transfer in the treatment of patient with FIRCTs and highlights the tips and tricks to performing this arthroscopic-assisted procedure. RECENT FINDINGS The treatment of posterosuperior FIRCTs contemplates a wide array of surgical options, including partial repair, biceps tenodesis/tenotomy, superior capsule reconstruction, subacromial balloon, reverse shoulder arthroplasty, and open-/arthroscopic-assisted tendon transfers. Tendon transfers have emerged as very promising reconstructive options to rebalance the anterior-posterior force couple. Controversy remains regarding the relative indications of latissimus dorsi transfer (LDT) and lower trapezius transfer (LTT). Initially used with very good success in patients with brachial plexus injuries, the open LTT has shown excellent clinical and radiographic outcomes in a recent series of patients with FIRCTs. However, this technique should be reserved for patients with an intact or reparable subscapularis tendon and no advanced glenohumeral arthritis or humeral head femoralization. With advancements in surgical technique, the arthroscopic-assisted LTT has shown similar promising results. However, studies on arthroscopically assisted LTT are limited to short-term follow-up, and future comparative trials with large patient numbers and longer follow-up are needed to better understand the indications for this novel tendon transfer in the treatment of FIRCT. The arthroscopic-assisted LTT is a novel, promising option for the treatment of patients with functional irreparable posterosuperior rotator cuff tears. Careful attention to indications and technical pearls are paramount when performing this procedure to optimize postoperative clinical outcomes.
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Affiliation(s)
- Eric R Wagner
- Department of Orthopaedic Surgery, Division of Upper Extremity Surgery, Emory University, Atlanta, GA, 30329, USA.
| | - Bassem T Elhassan
- Department of Orthopaedic Surgery, Mayo Clinic, Rochester, MN, 55905, USA
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Clouette J, Leroux T, Shanmugaraj A, Khan M, Gohal C, Veillette C, Henry P, Paul RA. The lower trapezius transfer: a systematic review of biomechanical data, techniques, and clinical outcomes. J Shoulder Elbow Surg 2020; 29:1505-1512. [PMID: 32169465 DOI: 10.1016/j.jse.2019.12.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 11/29/2019] [Accepted: 12/10/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND Lower trapezius (LT) transfers were originally described to restore external rotation (ER) in the management of brachial plexus palsy; however, there is recent interest in the role of this transfer to restore shoulder function, specifically ER, in patients with a massive irreparable rotator cuff tear (RCT). The purpose of this systematic review is to summarize the current literature pertaining to LT transfers, including biomechanics, techniques, and clinical outcomes for patients with brachial plexus palsy and massive RCTs. METHODS MEDLINE, EMBASE, and PubMed were searched for biomechanical and clinical studies, as well as technique articles. Four biomechanical studies reported on moment arms, range of motion (ROM), and force vectors. Seven clinical studies reported postoperative ROM and functional outcomes, and weighted mean improvements in ROM were calculated. RESULTS Overall, 18 studies were included, and then subdivided into 3 themes: biomechanical, technique, and clinical. Biomechanical studies comparing LT and latissimus dorsi (LD) transfers observed an overall larger moment arm in abduction and ER in adduction for the LT transfer, with similar results in forward elevation. Clinical studies noted significant improvement in shoulder function following the LT transfer, including ROM and functional outcome scores. There were several described techniques for performing the LT transfer, including arthroscopically assisted and open approaches, and the use of both allograft and autograft augmentation. CONCLUSION This study suggests that the LT transfer is generally safe, and the clinical and biomechanical data to date support the use of the LT transfer for restoration of function in these challenging patient populations.
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Affiliation(s)
- Julien Clouette
- The Arthritis Program, University Health Network, Toronto, ON, Canada
| | - Timothy Leroux
- The Arthritis Program, University Health Network, Toronto, ON, Canada.
| | | | - Moin Khan
- Department of Orthopaedic Surgery, McMaster University, Hamilton, ON, Canada
| | - Chetan Gohal
- Department of Orthopaedic Surgery, McMaster University, Hamilton, ON, Canada
| | | | - Patrick Henry
- Department of Orthopaedic Surgery, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Ryan A Paul
- The Arthritis Program, University Health Network, Toronto, ON, Canada
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Young BL, Connor PM, Schiffern SC, Roberts KM, Hamid N. Reverse shoulder arthroplasty with and without latissimus and teres major transfer for patients with combined loss of elevation and external rotation: a prospective, randomized investigation. J Shoulder Elbow Surg 2020; 29:874-881. [PMID: 32305105 DOI: 10.1016/j.jse.2019.12.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 12/15/2019] [Accepted: 12/21/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND Latissimus dorsi (LD) and teres major (TM) tendon transfers have been performed concurrently with reverse shoulder arthroplasty (RSA) to address combined loss of elevation and external rotation (CLEER) at the shoulder. The purpose of this prospective, randomized study was to compare RSA with and without LD-TM tendon transfer in patients with rotator cuff tear arthropathy and CLEER. METHODS Patients undergoing RSA for rotator cuff tear arthropathy who also had CLEER were randomized into the group undergoing RSA with tendon transfer or the group undergoing RSA without tendon transfer. The primary outcome measure was the Activities of Daily Living and External Rotation (ADLER) score 2 years after surgery. Secondary outcome measures included the Disabilities of the Arm, Shoulder and Hand (DASH) score, American Shoulder and Elbow Surgeons (ASES) score, and Simple Shoulder Test (SST) score. RESULTS Both the treatment and control groups showed significant improvements in the ability to perform activities of daily living requiring active external rotation measured by the ADLER score postoperatively. No significant difference in the ADLER, DASH, ASES, or SST score was found between the 2 groups at final follow-up. Resolution of the Hornblower sign occurred postoperatively in 58.3% of patients in the control group and 73.3% of those in the treatment group. CONCLUSION No differences in the ADLER, DASH, ASES, and SST results were found between patients treated with RSA alone and those treated with RSA with LD-TM transfer for rotator cuff tear arthropathy and CLEER. Both groups showed significant improvements in all clinical outcome assessments including functional tasks that require active external rotation.
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Affiliation(s)
- Bradley L Young
- Department of Orthopaedic Surgery, Atrium Health Musculoskeletal Institute, Charlotte, NC, USA
| | - Patrick M Connor
- OrthoCarolina Shoulder and Elbow Center, Charlotte, NC, USA; OrthoCarolina Sports Medicine Center, Charlotte, NC, USA
| | | | | | - Nady Hamid
- OrthoCarolina Shoulder and Elbow Center, Charlotte, NC, USA.
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Checchia C, Domos P, Grimberg J, Kany J. Current Options in Tendon Transfers for Irreparable Rotator Cuff Tears. JBJS Rev 2020; 7:e6. [PMID: 30817693 DOI: 10.2106/jbjs.rvw.18.00044] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
| | - Peter Domos
- The Northern General Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom
| | - Jean Grimberg
- Institut de recherche en chirurgie orthopédique sportive, Clinique Remusat, Paris, France
| | - Jean Kany
- Toulouse Shoulder Unit, Clinique de l'Union, Saint Jean, France
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Hetto P, Erhard S, Thielen M, Wolf SI, Zeifang F, van Drongelen S, Maier MW. 3D motion analysis of latissimus dorsi tendon transfer in patients with posterosuperior rotator cuff tears: Analysis of proprioception and the ability to perform ADLS. Orthop Traumatol Surg Res 2020; 106:39-44. [PMID: 31837929 DOI: 10.1016/j.otsr.2019.10.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/09/2019] [Accepted: 10/23/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Massive irreparable posterosuperior rotator cuff tears may result in a loss of external rotation. Most of these patients lose their ability to perform activities of daily living (ADLs), especially where external rotation and abduction are needed. Latissimus dorsi tendon transfer (LDTT) is a method to restore abduction and external rotation in patients with posterosuperior rotator cuff tears. There are no objective data concerning whether LDTT can restore range of motion (ROM), especially in performing ADLs and if proprioception changes after LDTT. METHODS We examined 12 patients 4.2 years (1-9 years) after LDTT with simultaneous 3D motion analysis; the opposite, nonaffected side was assessed as control. The measurement protocol included maximum values in flexion/extension, abduction/adduction, internal/external rotation in 0° and in 90° flexion and in 90° abduction. To evaluate competences, we measured seven activities of daily life and examined the proprioceptive ability using an active angle reproduction test. RESULTS In total, 4.2 years (1-9 years) after LDTT there was no significant difference in flexion/extension and abduction/adduction compared to the healthy side. Maximum external rotation was significantly reduced compared to the opposite side. Eleven patients (85%) were able to perform all ADL. Proprioceptive ability did not differ from the healthy side. CONCLUSION LDTT cannot fully restore a patient's ability for external rotation after a posterosuperior rotator cuff tear. However, 4.2 years after surgery, 85% of the patients are able to perform all ADLs. Proprioceptive ability is not affected by the transfer.
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Affiliation(s)
- Pit Hetto
- Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg, Germany.
| | - Sarah Erhard
- Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Mirjam Thielen
- Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Sebastian I Wolf
- Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | | | | | - Michael W Maier
- Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg, Germany
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Tendon transfers in rotator-cuff surgery. Orthop Traumatol Surg Res 2020; 106:S43-S51. [PMID: 31843509 DOI: 10.1016/j.otsr.2019.05.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 04/22/2019] [Accepted: 05/10/2019] [Indexed: 02/08/2023]
Abstract
Indications and techniques for tendon transfer in irreparable rotator-cuff tear have greatly progressed and are no longer restricted to external rotation deficit. The present article first reviews the various types of tear and corresponding tendon transfers and the biomechanics of the pseudoparalytic shoulder. The indication of choice for tendon transfer is iterative tear following failure of isolated long biceps tenotomy or partial repair. Latissimus dorsi, inferior trapezius and pectoralis major transfer are the 3 types to be used after failure of primary surgery. Latissimus dorsi transfer is indicated for partial loss of active limb elevation or isolated loss of internal rotation. Inferior trapezius transfer is best indicated for isolated active external rotation deficit. In pseudoparalytic shoulder with total loss of active elevation or combined loss of elevation and active external rotation, isolated transfer is insufficiently powerful to restore active range of motion and should be associated to reverse arthroplasty. We describe the various transfer techniques and report their results.
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Méndez-Domínguez N, Aguiñaga-Malanco SE, López-Muñoz R, Santos-Zaldivar KP. Bases para el abordaje multidisciplinario de la seudo paresia y seudo parálisis de hombro por patología del manguito rotador. ACTA ORTOPÉDICA MEXICANA 2020; 34:242-248. [DOI: 10.35366/97559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/02/2024]
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Juhan T, Stone M, Jalali O, Curtis W, Prodromo J, Weber AE, Hatch GF, Omid R. Irreparable rotator cuff tears: Current treatment options. Orthop Rev (Pavia) 2019; 11:8146. [PMID: 31616552 PMCID: PMC6784596 DOI: 10.4081/or.2019.8146] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 06/07/2019] [Indexed: 01/07/2023] Open
Abstract
Rotator cuff disease is one of the most common causes of shoulder pain, yet controversy still exists regarding treatment of "irreparable" tears. Nonoperative management, including physical therapy and steroid injections, should be reserved for those without significant pain or functional impairment. Debridement may be used for low-demand patients, and should be performed with partial cuff repair, subacromial decompression, and/or acromioplasty to maximize outcomes. Biceps tenotomy and/or tenodesis have been shown to reduce postoperative pain and improve satisfaction when performed in conjunction with rotator cuff repairs, with no difference in functional outcome comparatively. Tendon transfers have been advocated with the potential benefit to improve function and decrease pain. More recently, extracellular matrix and human-derived dermal allografts have been used off-label as patch grafts in irreparable tears. Superior capsular reconstructive techniques and subacromial balloon spacers serve a similar function by acting to depress the humeral head in a cuff-deficient shoulder, however long-term data is needed before widespread adoption of these procedures. Finally, reverse shoulder arthroplasty serves as a salvage option for low demand elderly patients.
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Affiliation(s)
- Tristan Juhan
- Epstein Center for Sports Medicine, Department of Orthopaedic Surgery, University of Southern California, Los Angeles, CA, USA
| | - Michael Stone
- Epstein Center for Sports Medicine, Department of Orthopaedic Surgery, University of Southern California, Los Angeles, CA, USA
| | - Omid Jalali
- Epstein Center for Sports Medicine, Department of Orthopaedic Surgery, University of Southern California, Los Angeles, CA, USA
| | - Will Curtis
- Epstein Center for Sports Medicine, Department of Orthopaedic Surgery, University of Southern California, Los Angeles, CA, USA
| | - John Prodromo
- Epstein Center for Sports Medicine, Department of Orthopaedic Surgery, University of Southern California, Los Angeles, CA, USA
| | - Alexander E Weber
- Epstein Center for Sports Medicine, Department of Orthopaedic Surgery, University of Southern California, Los Angeles, CA, USA
| | - George Frederick Hatch
- Epstein Center for Sports Medicine, Department of Orthopaedic Surgery, University of Southern California, Los Angeles, CA, USA
| | - Reza Omid
- Epstein Center for Sports Medicine, Department of Orthopaedic Surgery, University of Southern California, Los Angeles, CA, USA
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Stoll LE, Codding JL. Lower Trapezius Tendon Transfer for Massive Irreparable Rotator Cuff Tears. Orthop Clin North Am 2019; 50:375-382. [PMID: 31084840 DOI: 10.1016/j.ocl.2019.03.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The treatment of the massive irreparable rotator cuff tear poses a challenging problem. Tendon transfers offer a solution for irreparable posterosuperior rotator cuff tears. The lower trapezius tendon transfer with incorporation of an Achilles tendon allograft has emerged as an effective way to restore strength and function in select patients. Both open and arthroscopic-assisted techniques have been described.
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Affiliation(s)
- Laura E Stoll
- Division of Orthopaedic Surgery and Sports Medicine, Virginia Mason Medical Center, 1100 Ninth Avenue, X6-ORT, Seattle, WA 98101, USA.
| | - Jason L Codding
- Department of Orthopaedic Surgery, The Everett Clinic, 3901 Hoyt Avenue, Everett, WA 98201, USA
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Reddy A, Gulotta LV, Chen X, Castagna A, Dines DM, Warren RF, Kontaxis A. Biomechanics of lower trapezius and latissimus dorsi transfers in rotator cuff-deficient shoulders. J Shoulder Elbow Surg 2019; 28:1257-1264. [PMID: 30826203 DOI: 10.1016/j.jse.2018.11.066] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 11/26/2018] [Accepted: 11/30/2018] [Indexed: 02/01/2023]
Abstract
BACKGROUND Irreparable posterosuperior rotator cuff tears cause pain and impaired shoulder function. Latissimus dorsi (LD) transfer has been proven to improve shoulder function, but lower trapezius (LT) transfer has recently been proposed as an alternative. This study aimed to compare the biomechanics of LD and LT transfers and how they are affected by different insertion sites. METHODS The Newcastle shoulder model was used to investigate the biomechanics of these 2 tendon transfers. Computed tomography data sets from 10 healthy subjects were used to customize the model, and virtual LD and LT transfers were performed on supraspinatus, infraspinatus, and teres minor insertion sites. Muscle moment arms and lengths were computed for abduction, forward flexion, and external rotation. RESULTS The LT yields greater abduction moment arms compared with the LD when it is transferred to the native supraspinatus and infraspinatus insertion sites. However, they become adductors when transferred to the native teres minor insertion. Both muscles show strong external rotation moment arms, except for the LT with a supraspinatus insertion. Resting muscle strains were 0.21 (±0.03), 0.12 (±0.02), and 0.06 (±0.03) for the LD and 0.70 (±0.15), 0.61 (±0.13), and 0.58 (±0.13) for the LT for the supraspinatus, infraspinatus, and teres minor insertions, respectively. CONCLUSIONS LT provided better abduction and external rotation moment arms when transferred to the infraspinatus insertion. LD performed better when transferred to the supraspinatus insertion. Overall, LT transfer showed a biomechanical advantage compared with LD transfer because of stronger abduction moment arms. However, significantly larger muscle strains after LT transfer necessitate a tendon allograft to prevent muscle overtensioning.
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Affiliation(s)
- Akhil Reddy
- Weill Cornell Medical College, New York, NY, USA
| | | | - Xiang Chen
- Hospital for Special Surgery, New York, NY, USA
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