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Quantitative Analysis of Contrast-Enhanced Ultrasound That Can Be Used to Evaluate Angiogenesis during Patellar Tendon Healing in Rats. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:6867743. [PMID: 36313964 PMCID: PMC9584743 DOI: 10.1155/2022/6867743] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 09/15/2022] [Indexed: 01/26/2023]
Abstract
Objective To investigate the efficacy of contrast-enhanced ultrasound (CEUS) in quantitatively evaluating angiogenesis during patellar tendon healing in rats. Methods A total of 40 Sprague-Dawley rats were used in this study. The patellar tendons of 30 rats (60 limbs) that underwent incision and suture were treated as the operation group and monitored after 7, 14, and 28 days. The normal patellar tendons of 10 rats (20 limbs) were treated as the control group and monitored on day 0. The ultrasound examination was used to evaluate the structure and blood perfusion of the patellar tendon. Immunohistochemistry was used to assess angiogenesis, and the biomechanical test was used to verify functional recovery of the patellar tendon. Results The tendons in the operation group were significantly thickened compared with those in the control group (p < 0.01). The peak intensity (PI) in CEUS of the tendons showed a clear difference at each time point after the surgery (p < 0.01). PI increased in the operation group with a maximum on day 7, and then gradually decreased until day 28 when PI was close to the basic intensity (BI) in the control group (p > 0.05). It was consistent with the change of the CD31-positive staining areas representing angiogenesis of the injured patellar tendons. The PI was positively correlated with the CD31-positive staining area fraction (R = 0.849, p < 0.001). The failure load and tensile strength of the repaired patellar tendons in the operation group increased over time. The PI showed negative correlations with the failure load (R = -0.787, p < 0.001) and tensile strength (R = -0.714, p < 0.001). Conclusion The PI in CEUS could quantitatively reflect the time-dependent change in the blood supply of the healing site, and the PI correlated with histologic and biomechanical properties of the healing tendon. Quantitative analysis of contrast-enhanced ultrasound could be a useful method to evaluate angiogenesis in healing tendons.
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Pogorzelski J, Erber B, Themessl A, Rupp MC, Feucht MJ, Imhoff AB, Degenhardt H, Irger M. Definition of the terms "acute" and "traumatic" in rotator cuff injuries: a systematic review and call for standardization in nomenclature. Arch Orthop Trauma Surg 2021; 141:75-91. [PMID: 33130936 PMCID: PMC7815591 DOI: 10.1007/s00402-020-03656-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/15/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Although of high relevance for clinical decision making, there exists no consensus throughout the literature of the terms "acute" and "traumatic" used in the classification of rotator cuff tears. With differing definitions, the comparability of outcome studies may be limited. The aim was to provide a detailed systematic review of the definitions used in the literature and present a suggestion for a standardization in nomenclature based on the findings. METHODS Four different internet databases were searched in February 2020 using the terms ("acute" OR "traumatic" OR "trauma" OR "athlete" OR "young") AND ("rotator cuff tears" OR "rotator cuff tear" OR "rotator cuff" OR "rotator cuff rupture" OR "supraspinatus" OR "infraspinatus" OR "subscapularis" OR "teres minor"). Prospective, retrospective, cohort and case-control studies as well as case series were included. Systematic reviews, cadaveric or laboratory studies and studies on non-traumatic or non-acute rotator cuff tears were excluded. RESULTS The literature search conducted 10,349 articles of which 10,151 were excluded based on the title, 119 based on the abstract and 33 based on the manuscript. A total of 46 studies were finally included for review and subsequently analyzed. Overall, there exists no consensus neither on the term "acute" nor on "traumatic" in the context of rotator cuff tears in the literature. The time span for acute injuries ranged between 2 weeks and 6 months. For traumatic injuries, only 20% of the selected studies described a specific and adequate injury mechanism in combination with adequate imaging. CONCLUSION The term "acute" should be reserved for RCT showing muscle edema, wavelike appearance of the central part of the torn tendon and joint effusion, which typically requires adequate imaging within 2 weeks from trauma. Repair of acute tears should occur within 8 weeks from trauma to benefit from possibly superior biological healing capacities. The term "traumatic" should be used for a sudden onset of symptoms in a previously asymptomatic patient, triggered by an adequate trauma, e.g., a fall on the retroverted arm with an axial cranioventral force or a traumatic shoulder dislocation.
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Affiliation(s)
- Jonas Pogorzelski
- Department of Orthopedic Sports Medicine, Hospital Rechts Der Isar, Technical University of Munich, Ismaninger Street 22, 81675, Munich, Germany.
| | - Bernd Erber
- Department of Orthopedic Sports Medicine, Hospital Rechts Der Isar, Technical University of Munich, Ismaninger Street 22, 81675, Munich, Germany
| | - Alexander Themessl
- Department of Orthopedic Sports Medicine, Hospital Rechts Der Isar, Technical University of Munich, Ismaninger Street 22, 81675, Munich, Germany
| | - Marco-Christopher Rupp
- Department of Orthopedic Sports Medicine, Hospital Rechts Der Isar, Technical University of Munich, Ismaninger Street 22, 81675, Munich, Germany
| | - Matthias J Feucht
- Department of Orthopedic Sports Medicine, Hospital Rechts Der Isar, Technical University of Munich, Ismaninger Street 22, 81675, Munich, Germany
- Department of Orthopaedics and Trauma Surgery, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Andreas B Imhoff
- Department of Orthopedic Sports Medicine, Hospital Rechts Der Isar, Technical University of Munich, Ismaninger Street 22, 81675, Munich, Germany
| | - Hannes Degenhardt
- Department of Orthopedic Sports Medicine, Hospital Rechts Der Isar, Technical University of Munich, Ismaninger Street 22, 81675, Munich, Germany
| | - Markus Irger
- Department of Orthopedic Sports Medicine, Hospital Rechts Der Isar, Technical University of Munich, Ismaninger Street 22, 81675, Munich, Germany
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Bruns A, Möller I, Martinoli C. Back to the roots of rheumatology - Imaging of regional pain syndromes. Best Pract Res Clin Rheumatol 2020; 34:101630. [PMID: 33272828 DOI: 10.1016/j.berh.2020.101630] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Musculoskeletal regional pain syndromes (RPS) often lead to patient referrals in general and rheumatological practice. Detailed history taking and clinical examination can, in most cases, reveal the cause for pain and direct the subsequent management of the conditions. Yet, when in doubt, imaging methods, such as ultrasound (US) may support the clinical assessment. This paper reviews the underlying pathologies of some of the most frequently encountered RPS and the role of musculoskeletal US imaging for their diagnosis and treatment. If available, data on diagnostic accuracy and comparisons with gold standards are reported. The article stresses the importance of anatomical and sonoanatomical knowledge for the proper interpretation of the US images, points out the advantages and disadvantages of this imaging tool, and suggests the future research agenda.
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Affiliation(s)
- Alessandra Bruns
- Division of Rheumatology, Sherbrooke University, Sherbrooke, Canada.
| | - Ingrid Möller
- Instituto Poal de Reumatologia, University of Barcelona, Barcelona, Spain
| | - Carlo Martinoli
- Department of Health Sciences (DISSAL), Università di Genova, Genova, Italy; IRCCS Ospedale Policlinico San Martino, Genova, Italy
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Guillen Astete CA, Garcia Garcia V, Luque Alarcon M. Relevance of a normal ultrasound study in patients with non-traumatic acute shoulder pain. REUMATOLOGIA CLINICA 2020; 16:509-510. [PMID: 30704920 DOI: 10.1016/j.reuma.2018.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 10/20/2018] [Accepted: 10/25/2018] [Indexed: 06/09/2023]
Affiliation(s)
| | | | - Monica Luque Alarcon
- Servicio de Neurología, Hospital Universitario Clínico San Carlos, Madrid, España
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Rodríguez-Piñero Durán M, Vidal Vargas V, Castro Agudo M. [Ultrasound findings in chronic subacromal pain syndrome]. Rehabilitacion (Madr) 2019; 53:240-246. [PMID: 31813421 DOI: 10.1016/j.rh.2019.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/19/2019] [Accepted: 06/19/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE Subacromial pain syndrome is a clinical picture characterised by pain located around the acromion triggered or exacerbated by shoulder movements. Ultrasound is a suitable imaging technique to evaluate the soft tissues occupying the subacromial space. The aim of this study was to describe the ultrasound findings in patients diagnosed with chronic subacromial pain syndrome by age, sex, and time since onset. MATERIAL AND METHODS We conducted a retrospective study of patients diagnosed with chronic SDS who underwent shoulder ultrasound. The variables studied were age, sex, affected side, time since onset, sonographic findings and ultrasound diagnosis. A descriptive study of the variables and statistical inference was performed with the chi-square test. RESULTS A total of 253 clinical histories of patients who underwent shoulder ultrasound were reviewed. Of these, 100 were selected who met the pre-established criteria. Involvement was bilateral in 5 of them and consequently the total number of ultrasound scans reviewed was 105. Differences were found between ultrasound finding by age, but not by sex or time since onset. CONCLUSIONS The findings of this study indicate that there is good clinical-radiological correlation between subacromial pain syndrome and ultrasound findings. The structure most frequently involved in the origin of the pain was the supraspinatus tendon. Differences were found by age but not by sex or the time since onset.
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Affiliation(s)
- M Rodríguez-Piñero Durán
- Servicio de Medicina Física y Rehabilitación, Hospital Universitario Virgen Macarena, Unidad de Gestión Clínica de Rehabilitación provincial de Sevilla, Sevilla, España
| | - V Vidal Vargas
- Servicio de Medicina Física y Rehabilitación, Hospital Universitario Virgen Macarena, Unidad de Gestión Clínica de Rehabilitación provincial de Sevilla, Sevilla, España.
| | - M Castro Agudo
- Servicio de Medicina Física y Rehabilitación, Hospital Universitario Virgen Macarena, Unidad de Gestión Clínica de Rehabilitación provincial de Sevilla, Sevilla, España
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