1
|
Yuan Z, Huan D, Dou W, Liu S, Lu C, Zhang C, Xia T, Shen J. Alteration in Microcirculation With Osteonecrosis of the Femoral Head: A Study of Dynamic Contrast-Enhanced MRI. Orthopedics 2024; 47:e73-e78. [PMID: 37757750 DOI: 10.3928/01477447-20230922-01] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is commonly used in clinical practice to detect tumor blood supply, and it has recently been applied to assess skeletal vasculature. In this study, we retrospectively analyzed DCE-MRI data from 37 patients with osteonecrosis of the femoral head to evaluate alterations in microvascular circulation of the femoral head. Time-intensity curves (TICs) in the region of interest were classified into different lesion stages. In the greater trochanter area, extracellular space volume per unit volume of tissue was significantly higher in Association Research Circulation Osseous (ARCO) stage III than in ARCO stage II (P<.05 and power ≥ 0.8), while other parameters showed no statistical difference (P>.05 and/or power < 0.8). In the necrotic area, contrast enhancement ratio and maximum slope of increase were significantly lower in ARCO stage III than in ARCO stage II (P<.05 and power ≥ 0.8), while other parameters showed no statistical difference (P>.05 and/or power < 0.8). In the repair reaction area, all parameters were significantly higher in ARCO stage III than in ARCO stage II (P<.05 and power ≥ 0.8). TIC classification showed that the greater trochanter area mainly exhibited type C (plateau type), the necrotic area mainly exhibited type B (out-flow type), and the repair reaction area mainly exhibited type A (inflow type). We believe that the exchange capacity of the vessels has a much greater impact on femoral head necrosis than the number of vessels, while the generation of the repair area greatly affects the prognosis of femoral head necrosis. These findings suggest that DCE-MRI can provide a good assessment of osteonecrosis of the femoral head perfusion and can serve as a new reference for clinical treatment decisions. [Orthopedics. 2024;47(2):e73-e78.].
Collapse
|
2
|
Griffith JF, Yip SWY, van der Heijden RA, Valenzuela RF, Yeung DKW. Perfusion Imaging of the Musculoskeletal System. Magn Reson Imaging Clin N Am 2024; 32:181-206. [PMID: 38007280 DOI: 10.1016/j.mric.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2023]
Abstract
Perfusion imaging is the aspect of functional imaging, which is most applicable to the musculoskeletal system. In this review, the anatomy and physiology of bone perfusion is briefly outlined as are the methods of acquiring perfusion data on MR imaging. The current clinical indications of perfusion related to the assessment of soft tissue and bone tumors, synovitis, osteoarthritis, avascular necrosis, Keinbock's disease, diabetic foot, osteochondritis dissecans, and Paget's disease of bone are reviewed. Challenges and opportunities related to perfusion imaging of the musculoskeletal system are also briefly addressed.
Collapse
Affiliation(s)
- James F Griffith
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong.
| | - Stefanie W Y Yip
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong
| | - Rianne A van der Heijden
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands; Department of Radiology, University of Wisconsin-Madison, Madison, WI, USA
| | - Raul F Valenzuela
- Department of Musculoskeletal Imaging, The University of Texas, MD Anderson Cancer Center, USA
| | - David K W Yeung
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong
| |
Collapse
|
3
|
Samet JD, Alizai H, Chalian M, Costelloe C, Deshmukh S, Kalia V, Kamel S, Mhuircheartaigh JN, Saade J, Walker E, Wessell D, Fayad LM. Society of skeletal radiology position paper - recommendations for contrast use in musculoskeletal MRI: when is non-contrast imaging enough? Skeletal Radiol 2024; 53:99-115. [PMID: 37300709 DOI: 10.1007/s00256-023-04367-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/01/2023] [Accepted: 05/17/2023] [Indexed: 06/12/2023]
Abstract
The following White Paper will discuss the appropriateness of gadolinium administration in MRI for musculoskeletal indications. Musculoskeletal radiologists should consider the potential risks involved and practice the judicious use of intravenous contrast, restricting administration to cases where there is demonstrable added value. Specific nuances of when contrast is or is not recommended are discussed in detail and listed in table format. Briefly, contrast is recommended for bone and soft tissue lesions. For infection, contrast is reserved for chronic or complex cases. In rheumatology, contrast is recommended for early detection but not for advanced arthritis. Contrast is not recommended for sports injuries, routine MRI neurography, implants/hardware, or spine imaging, but is helpful in complex and post-operative cases.
Collapse
Affiliation(s)
- Jonathan D Samet
- Ann & Robert H. Lurie Children's Hospital of Chicago, Feinberg School of Medicine, Northwestern University, Chicago, USA.
| | - Hamza Alizai
- CHOP Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, USA
| | - Majid Chalian
- Department of Radiology, University of Washington, Seattle, USA
| | | | | | - Vivek Kalia
- Children's Scottish Rite Hospital, Dallas, USA
| | - Sarah Kamel
- Thomas Jefferson University Hospital, Philadelphia, USA
| | | | - Jimmy Saade
- Creighton University School of Medicine, Phoenix Regional Campus, Phoenix, USA
| | - Eric Walker
- Penn State Health Milton S Hershey Medical Center, Hershey, USA
| | - Daniel Wessell
- Mayo Clinic Jacksonville Campus: Mayo Clinic in Florida, Jacksonville, USA
| | - Laura M Fayad
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medicine, Baltimore, USA.
| |
Collapse
|
4
|
Meaike JJ, Meaike JD, Collins MS, Bishop AT, Shin AY. Utility of preoperative MRI for assessing proximal fragment vascularity in scaphoid nonunion. Bone Joint J 2023; 105-B:657-662. [PMID: 37257849 DOI: 10.1302/0301-620x.105b6.bjj-2022-0835.r2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Aims The benefit of MRI in the preoperative assessment of scaphoid proximal fragment vascularity remains controversial. The purpose of this study is to compare preoperative MRI findings to intraoperative bleeding of the proximal scaphoid. Methods A retrospective review of 102 patients who underwent surgery for scaphoid nonunion between January 2000 and December 2020 at a single institution were identified. Inclusion criteria were: isolated scaphoid nonunion; preoperative MRI assessing the proximal fragment vascularity; and operative details of the vascularity of the proximal fragment with the tourniquet deflated. MRI results and intraoperative findings were dichotomized as either 'yes' or 'no' for the presence of vascularity. A four-fold contingency table was used to analyze the utility of preoperative MRI with 95% confidence intervals. Relative risk was calculated for subgroups to analyze the association between variables and MRI accuracy. Results Preoperative MRI identified 55 proximal scaphoid fragments with ischaemia and 47 with vascularized proximal fragments. After the proximal fragment was prepared, the tourniquet was deflated and assessed for bleeding; 63 proximal fragments had no bleeding and 39 demonstrated bleeding. MRI was not reliable or accurate in the assessment of proximal fragment vascularity when compared with intraoperative assessment of bleeding. No patient or MRI factors were identified to have a statistical impact on MRI accuracy. Conclusion Current preoperative MRI protocols and diagnostic criteria do not provide a high degree of correlation with observed intraoperative assessment of proximal fragment bleeding. While preoperative MRI may assist in surgical planning, intraoperative assessment remains the best means for assessing proximal fragment vascularity in scaphoid nonunion. Future efforts should focus on the development of objective measures of osseous blood flow that may be performed intraoperatively.
Collapse
Affiliation(s)
- Joshua J Meaike
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Jesse D Meaike
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
- Division of Plastic Surgery, Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Mark S Collins
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Allen T Bishop
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Alexander Y Shin
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| |
Collapse
|
5
|
Mourad C, Omoumi P, Vande Berg B. The Many Faces of Marrow Necrosis. Semin Musculoskelet Radiol 2023; 27:103-113. [PMID: 36868248 DOI: 10.1055/s-0043-1761497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Abstract
Depending on the age and location within the skeleton, bone marrow can be mostly fatty or hematopoietic, and both types can be affected by marrow necrosis. This review article highlights the magnetic resonance imaging findings of disorders in which marrow necrosis is the dominant feature.Fatty marrow necrosis is detected on T1-weighted images that show an early and specific finding: the reactive interface. Collapse is a frequent complication of epiphyseal necrosis and detected on fat-suppressed fluid-sensitive sequences or using conventional radiographs. Nonfatty marrow necrosis is less frequently diagnosed. It is poorly visible on T1-weighted images, and it is detected on fat-suppressed fluid-sensitive images or by the lack of enhancement after contrast injection.Pathologies historically "misnamed" as osteonecrosis but do not share the same histologic or imaging features of marrow necrosis are also highlighted.
Collapse
Affiliation(s)
- Charbel Mourad
- Department of Diagnostic and Interventional Radiology, Hôpital Libanais Geitaoui - CHU, Beyrouth, Lebanon.,Department of Radiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Patrick Omoumi
- Department of Radiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Bruno Vande Berg
- Department of Radiology, Musculoskeletal Section, Centre Hospitalier Chretien, CHC, Clinique Mont Legia, Liege, Belgium
| |
Collapse
|
6
|
Scaphoid Nonunion Vascularized Bone Grafting in 2021: Is Avascular Necrosis the Sole Determinant? J Hand Surg Am 2021; 46:801-806.e2. [PMID: 34183203 DOI: 10.1016/j.jhsa.2021.05.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 04/01/2021] [Accepted: 05/06/2021] [Indexed: 02/02/2023]
Abstract
The decision regarding the use of vascularized bone grafting (VBG) or nonvascularized bone grafting for the treatment of scaphoid nonunion (SNU) needs guidelines based on patient- and fracture-specific risk factors. Historically, the presence of avascular necrosis was viewed as the primary indication for VBG; however, avascular necrosis is not the only indicator to determine whether VBG can improve our treatment of difficult SNU cases. The methods of detecting scaphoid avascular necrosis lack consensus and accuracy, limiting their use as decision-making tools. Additionally, many other preoperative risk factors for SNU surgery failure have been reported and require careful and standardized study, including the location of nonunion in the scaphoid proximal pole, the duration of nonunion, previous failed nonunion surgery, smoking, and fracture nonunion displacement or collapse. An appropriate study size and design are needed to determine the factors that guide the use of VBG or nonvascularized bone grafting to optimize the outcomes of SNU surgery.
Collapse
|
7
|
Aita MA, Kaempf R, Biondi BG, Montano GA, Towata F, Rodriguez GLG, Ruggiero GM. Arthroscopic Management of Intra-articular Ligament Lesions on Distal Radius Fractures. REVISTA IBEROAMERICANA DE CIRUGÍA DE LA MANO 2021. [DOI: 10.1055/s-0041-1730393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
AbstractArticular distal radius fractures (DRFs) have increased in incidence in recent years, especially among the economically active population. Most of the treatment approaches are based on plain X- rays, and do not give us any information on how to treat these fractures. In the search for solutions with greater precision in diagnosis, in reducing the joint surface of the fracture, and envolving minimally-invasive techniques, we found arthroscopy as the main tool for these patients. Therefore, an enhanced understanding of the biomechanics of the different types of fracture associated with ligamentous lesions should facilitate the right decision regarding the treatment. The present paper aims at providing a management-oriented concept to diagnose and treat ligamentous lesions associated with intra-articular DRFs based on a arthroscopy-assisted procedure, and showing the objective and patient-reported outcomes and a new classification. The objective and patient-reported outcomes were: the mean range of motion (ROM) was of 94.80% on the non-affected side; the mean score on the abbreviated version of the Disabilities of the Arm, Shoulder and Hand questionnaire (QuickDASH) was of 3.6 (range: 1 to 12). The score on the Visual Analog Scale (VAS) was of 1.66 (range: 1 to 3). Complications were observed in 2 (13.33%) patients: extensor tendon synovitis in 1 patient, and a limitation (stiffness) in ROM in 1 patient, both treated with wrist arthroscopy release. The mean time until the return to work was of 6.4 weeks. In patients with unstable intra-articular DRFs associated with ligamentous lesions, the fixation of specific osseous-ligamentous fragments and ligamentous repair/reconstruction by wrist arthroscopy prove to be a safe and reliable treatment. The clinical and functional results predict that the patients can return to work more quickly.
Collapse
Affiliation(s)
| | | | | | | | - Fernando Towata
- Faculdade de Medicina do ABC, Santo André, São Paulo, SP, Brazil
| | | | | |
Collapse
|
8
|
Abstract
Imaging plays a key role in the evaluation and treatment planning of hand and wrist injuries in athletes. Depending on the suspected injury, a combination of conventional radiographs, computed tomography, magnetic resonance imaging, magnetic resonance arthrography, and/or ultrasound may be indicated. This article reviews the strengths and limitations of these imaging modalities and how they can be utilized in commonly encountered clinical questions.
Collapse
Affiliation(s)
| | - B Matthew Howe
- Department of Radiology, Mayo Clinic, 200 1st Street Southwest, Rochester, MN 55905, USA
| |
Collapse
|
9
|
Bäcker HC, Wu CH, Strauch RJ. Systematic Review of Diagnosis of Clinically Suspected Scaphoid Fractures. J Wrist Surg 2020; 9:81-89. [PMID: 32025360 PMCID: PMC7000269 DOI: 10.1055/s-0039-1693147] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 05/18/2019] [Indexed: 01/28/2023]
Abstract
Background Scaphoid fracture accounts for approximately 15% of acute wrist fractures. Clinical examination and plain X-rays are commonly used to diagnose the fracture, but this approach may miss up to 16% of fractures in the absence of clear-cut lucent lines on plain radiographs. As such, additional imaging may be required. It is not clear which imaging modality is the best. The goal of this study is to summarize the current literature on scaphoid fractures to evaluate the sensitivity, specificity, and accuracy of four different imaging modalities. Case Description A systematic-review and meta-analysis was performed. The search term "scaphoid fracture" was used and all prospective articles investigating magnetic resonance imaging (MRI), computed tomography (CT), bone scintigraphy, and ultrasound were included. In total, 2,808 abstracts were reviewed. Of these, 42 articles investigating 51 different diagnostic tools in 2,507 patients were included. Literature Review The mean age was 34.1 ± 5.7 years, and the overall incidence of scaphoid fractures missed on X-ray and diagnosed on advanced imaging was 21.8%. MRI had the highest sensitivity and specificity for diagnosing scaphoid fractures, which were 94.2 and 97.7%, respectively, followed by CT scan with a sensitivity and specificity at 81.5 and 96.0%, respectively. The sensitivity and specificity of ultrasound were 81.5 and 77.4%, respectively. Significant differences between MRI, bone scintigraphy, CT, and ultrasound were identified. Clinical Relevance MRI has higher sensitivity and specificity than CT scan, bone scintigraphy, or ultrasound. Level of Evidence This is a Level II systematic review.
Collapse
Affiliation(s)
- Henrik Constantin Bäcker
- Department of Orthopaedic Surgery, Columbia University Medical Center–Presbyterian Hospital, New York City, New York
| | - Chia H. Wu
- Department of Orthopaedic Surgery, Columbia University Medical Center–Presbyterian Hospital, New York City, New York
| | - Robert J. Strauch
- Department of Orthopaedic Surgery, Columbia University Medical Center–Presbyterian Hospital, New York City, New York
| |
Collapse
|
10
|
Moser TP, Martinez AP, Andoulsi S, Jeantroux J, Cardinal É. Radiographic/MR Imaging Correlation of the Wrist. Magn Reson Imaging Clin N Am 2019; 27:601-623. [PMID: 31575396 DOI: 10.1016/j.mric.2019.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
In this review article, the authors discuss the imaging features of the most common pathologic conditions of the wrist by putting the emphasis on radiographic and MR imaging correlations. A topographic approach based on the 3 functional columns of the wrist (radial, central, and ulnar) serves as a framework. The pathologic conditions are classified, based on the structures involved, as fractures, ligament injuries, arthropathies, bone abnormalities, and tendinopathies. The authors describe and evaluate classic radiographic signs and explain how they correlate with MR imaging. The advantages and limitations of each technique are thoroughly discussed as well as other imaging modalities.
Collapse
Affiliation(s)
- Thomas P Moser
- Department of Radiology, Centre Hospitalier de l'Université de Montréal, 1000, rue Saint-Denis, Montréal, Québec H2X 0C1, Canada.
| | - Adriana P Martinez
- Department of Orthopedic Surgery, University of Ottawa, The Ottawa Hospital Civic Campus, 1053 Carling Avenue, Ottawa, Ontario K1Y 4E9, Canada
| | - Sooheib Andoulsi
- Department of Radiology, Centre Hospitalier de l'Université de Montréal, 1000, rue Saint-Denis, Montréal, Québec H2X 0C1, Canada
| | - Jérémy Jeantroux
- Service d'Imagerie Médicale, Clinique St-François, 1-5, rue Colomé, Haguenau 67502, France
| | - Étienne Cardinal
- Medvue, 5811 Côte-des-Neiges Road, Montreal, Québec H3S 1Z2, Canada
| |
Collapse
|
11
|
Abstract
Many hand surgeons argue that vascularized bone grafting is indicated in proximal pole avascular necrosis, prior failed surgery, or long-standing scaphoid nonunion. However, the available evidence does not support improved treatment outcomes for vascularized bone grafting rather than traditional nonvascularized techniques. This article addresses the available evidence and examines the role of vascularized bone grafting in scaphoid nonunion treatment. It also identifies important factors that influence healing, clarifies the decision-making algorithm, and proposes areas for further research.
Collapse
Affiliation(s)
- Schneider K Rancy
- College of Medicine, SUNY Downstate Medical Center, 1160 Ocean Avenue, Apt 5F, Brooklyn, NY 11230, USA
| | - Gernot Schmidle
- Department of Trauma Surgery, Medical University Innsbruck, Anichstraße 35, Innsbruck 6020, Austria
| | - Scott W Wolfe
- Hand and Upper Extremity Service, Hospital for Special Surgery, Weill Medical College of Cornell University, 535 East 70th Street, New York, NY 10021, USA.
| |
Collapse
|
12
|
Abstract
The scaphoid is the most commonly fractured bone in the wrist but 20% to 40% of scaphoid fractures are radiographically occult. Delayed or misdiagnosis can have significant consequences with late complications such as nonunion, malunion, or the development of avascular necrosis in the proximal pole. After initial negative radiographs, advanced cross-sectional imaging, including CT and MRI, ultimately may provide more accurate and rapid diagnosis than conventional radiography. With chronic fractures, the preferred modality depends on the clinical question. New techniques are evolving that will further advance imaging for diagnosis and treatment of scaphoid fractures.
Collapse
Affiliation(s)
- Kimberly K Amrami
- Department of Radiology, Mayo Clinic, 200 1st Street Southwest, Rochester, MN 55905, USA.
| | - Matthew A Frick
- Department of Radiology, Mayo Clinic, 200 1st Street Southwest, Rochester, MN 55905, USA
| | - Jane M Matsumoto
- Department of Radiology, Mayo Clinic, 200 1st Street Southwest, Rochester, MN 55905, USA
| |
Collapse
|
13
|
Bazzocchi A, Aparisi Gómez MP, Spinnato P, Marinelli A, Napoli A, Rotini R, Catalano C, Guglielmi G. Imaging the Postsurgical Upper Limb: The Radiologist Perspective. Radiol Clin North Am 2019; 57:977-1000. [PMID: 31351545 DOI: 10.1016/j.rcl.2019.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Imaging has a paramount role in postsurgical assessment. Radiologists need to be familiar with the different surgical procedures to be able to identify expected postsurgical appearances and also detect potential complications. This article reviews the indications, normal expected postsurgical appearances, and complications of the most frequently used surgical procedures in the shoulder, elbow, and wrist. The emphasis is on points that should not be overlooked in the surgical planning.
Collapse
Affiliation(s)
- Alberto Bazzocchi
- Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Rizzoli, Via G. C. Pupilli 1, Bologna 40136, Italy.
| | - Maria Pilar Aparisi Gómez
- Department of Radiology, National Women's Hospital, Auckland City Hospital, Greenlane Clinical Center, Auckland District Health Board, 2 Park Road, Grafton, Auckland 1023, New Zealand; Department of Ultrasound, National Women's Hospital, Auckland City Hospital, Greenlane Clinical Center, Auckland District Health Board, 2 Park Road, Grafton, Auckland 1023, New Zealand; Department of Radiology, Hospital Nisa Nueve de Octubre, Calle Valle de la Ballestera, 59, Valencia 46015, Spain
| | - Paolo Spinnato
- Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Rizzoli, Via G. C. Pupilli 1, Bologna 40136, Italy
| | - Alessandro Marinelli
- Shoulder and Elbow Surgery, IRCCS Istituto Ortopedico Rizzoli, Via G. C. Pupilli 1, Bologna 40136, Italy
| | - Alessandro Napoli
- Department of Radiologic, Oncologic and Pathologic Sciences, La Sapienza University of Rome, V.le Regina Elena 324, Rome 00180, Italy
| | - Roberto Rotini
- Shoulder and Elbow Surgery, IRCCS Istituto Ortopedico Rizzoli, Via G. C. Pupilli 1, Bologna 40136, Italy
| | - Carlo Catalano
- Department of Radiologic, Oncologic and Pathologic Sciences, La Sapienza University of Rome, V.le Regina Elena 324, Rome 00180, Italy
| | - Giuseppe Guglielmi
- Department of Radiology, University of Foggia, Viale Luigi Pinto 1, Foggia 71100, Italy
| |
Collapse
|
14
|
Werneck L, Canella C, Costa F, de Melo ASA, Marchiori E. Usefulness of dynamic contrast-enhanced MRI in the evaluation of osteonecrosis of the proximal fragment in scaphoid fractures. Radiol Bras 2018; 51:334. [PMID: 30369662 PMCID: PMC6198839 DOI: 10.1590/0100-3984.2017.0036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Luiza Werneck
- Clínica de Diagnóstico Por Imagem (CDPI), Rio de Janeiro, RJ, Brazil
| | - Clarissa Canella
- Clínica de Diagnóstico Por Imagem (CDPI), Rio de Janeiro, RJ, e Universidade Federal Fluminense (UFF), Niterói, RJ, Brazil
| | - Flavia Costa
- Clínica de Diagnóstico Por Imagem (CDPI), Rio de Janeiro, RJ, Brazil
| | | | - Edson Marchiori
- Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| |
Collapse
|
15
|
Pianta M, McCombe D, Slavin J, Hendry S, Perera W. Dual-energy contrast-enhanced CT to evaluate scaphoid osteonecrosis with surgical correlation. J Med Imaging Radiat Oncol 2018; 63:69-75. [PMID: 30183133 DOI: 10.1111/1754-9485.12796] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Accepted: 08/01/2018] [Indexed: 11/28/2022]
Abstract
To evaluate the validity of contrast enhanced dual energy CT using a lung perfusion algorithm in assessing for post-traumatic scaphoid proximal pole avascular necrosis. From Aug 2013 to Aug 2016, 18 patients (19 wrists, 16 males, 2 females, mean age 28 years) were assessed as high-risk for proximal pole scaphoid avascular necrosis by a single surgeon following a scaphoid fracture and were referred for contrast-enhanced dual energy CT. 8 wrists had specimens sent for correlative histological analysis and 11 were correlated with operative notes. Eight surgical specimens were sent to histology and showed a 100% correlation (8/8) with the DECT findings. The remaining 11 wrists that did not have a specimen sent had in-surgery findings that also correlated with DECT. A single case was discrepant (1/11) due to presence of an intra-osseous ganglion, which was reported as osteonecrosis on CT, but considered viable at surgery. No case was called viable on CT that proved to be necrotic at either surgery or histologically. Contrast-enhanced dual energy CT using a perfusion algorithm is an innovative and promising method in evaluating viability of the post-trauma proximal pole of scaphoid.
Collapse
Affiliation(s)
- Marcus Pianta
- Department of Medical Imaging, St Vincent's Hospital, Melbourne, Victoria, Australia
| | - David McCombe
- Department of Surgery, St Vincent's Hospital, Melbourne, Victoria, Australia
| | - John Slavin
- Department of Anatomical Pathology, St Vincent's Hospital, Melbourne, Victoria, Australia
| | - Shona Hendry
- Department of Anatomical Pathology, St Vincent's Hospital, Melbourne, Victoria, Australia
| | - Warren Perera
- Department of Medical Imaging, St Vincent's Hospital, Melbourne, Victoria, Australia
| |
Collapse
|
16
|
Sujlana P, Skrok J, Fayad LM. Review of dynamic contrast‐enhanced MRI: Technical aspects and applications in the musculoskeletal system. J Magn Reson Imaging 2017; 47:875-890. [DOI: 10.1002/jmri.25810] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 06/20/2017] [Indexed: 12/18/2022] Open
Affiliation(s)
- Parvinder Sujlana
- The Russell H. Morgan Department of Radiology and Radiological ScienceBaltimore Maryland USA
| | - Jan Skrok
- The Russell H. Morgan Department of Radiology and Radiological ScienceBaltimore Maryland USA
| | - Laura M. Fayad
- The Russell H. Morgan Department of Radiology and Radiological ScienceBaltimore Maryland USA
| |
Collapse
|
17
|
Characterization of a Pre-Clinical Mini-Pig Model of Scaphoid Non-Union. J Funct Biomater 2015; 6:407-21. [PMID: 26086923 PMCID: PMC4493521 DOI: 10.3390/jfb6020407] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 06/09/2015] [Indexed: 12/24/2022] Open
Abstract
A fractured scaphoid is a common disabling injury that is frequently complicated by non-union. The treatment of non-union remains challenging because of the scaphoid's small size and delicate blood supply. Large animal models are the most reliable method to evaluate the efficacy of new treatment modalities before their translation into clinical practice. The goal of this study was to model a human scaphoid fracture complicated by non-union in Yucatan mini-pigs. Imaging and perfusion studies were used to confirm that the anatomy and blood supply of the radiocarpal bone in mini-pigs were similar to the human scaphoid. A 3 mm osteotomy of the radiocarpal bone was generated and treated with immediate fixation or filled with a dense collagen gel followed by delayed fixation. Bone healing was assessed using quantitative micro computed tomography and histology. With immediate fixation, the osteotomy site was filled with new bone across its whole length resulting in complete bridging. The dense collagen gel, previously shown to impede neo-vascularization, followed by delayed fixation resulted in impaired bridging with less bone of lower quality. This model is an appropriate, easily reproducible model for the evaluation of novel approaches for the repair of human scaphoid fractures.
Collapse
|
18
|
Griffith JF. Functional imaging of the musculoskeletal system. Quant Imaging Med Surg 2015; 5:323-31. [PMID: 26029633 DOI: 10.3978/j.issn.2223-4292.2015.03.07] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 02/28/2015] [Indexed: 12/17/2022]
Abstract
Functional imaging, which provides information of how tissues function rather than structural information, is well established in neuro- and cardiac imaging. Many musculoskeletal structures, such as ligaments, fascia and mineralized bone, have by definition a mainly structural role and clearly don't have the same functional capacity as the brain, heart, liver or kidney. The main functionally responsive musculoskeletal tissues are the bone marrow, muscle and nerve and, as such, magnetic resonance (MR) functional imaging has primarily addressed these areas. Proton or phosphorus spectroscopy, other fat quantification techniques, perfusion imaging, BOLD imaging, diffusion and diffusion tensor imaging (DTI) are the main functional techniques applied. The application of these techniques in the musculoskeletal system has mainly been research orientated where they have already greatly enhanced our understanding of marrow physiology, muscle physiology and neural function. Going forwards, they will have a greater clinical impact helping to bridge the disconnect often seen between structural appearances and clinical symptoms, allowing a greater understanding of disease processes and earlier recognition of disease, improving prognostic prediction and optimizing the monitoring of treatment effect.
Collapse
Affiliation(s)
- James F Griffith
- Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
| |
Collapse
|