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Debs P, Fayad LM, Ahlawat S. Magnetic Resonance Neurography of the Foot and Ankle. Clin Podiatr Med Surg 2024; 41:723-743. [PMID: 39237181 DOI: 10.1016/j.cpm.2024.04.006] [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: 09/07/2024]
Abstract
Peripheral neuropathies of the foot and ankle can be challenging to diagnose clinically due to concomitant traumatic and nontraumatic or degenerative orthopedic conditions. Although clinical history, physical examination, and electrodiagnostic testing comprised of nerve conduction velocities and electromyography are used primarily for the identification and classification of peripheral nerve disorders, MR neurography (MRN) can be used to visualize the peripheral nerves as well as the skeletal muscles of the foot and ankle for primary neurogenic pathology and skeletal muscle denervation effect. Proper knowledge of the anatomy and pathophysiology of peripheral nerves is important for an MRN interpretation.
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Affiliation(s)
- Patrick Debs
- The Russell H. Morgan Department of Radiology & Radiological Science, The Johns Hopkins Medical Institutions, 600 North Wolfe Street, Baltimore, MD 21287, USA
| | - Laura M Fayad
- The Russell H. Morgan Department of Radiology & Radiological Science, The Johns Hopkins Medical Institutions, 600 North Wolfe Street, Baltimore, MD 21287, USA
| | - Shivani Ahlawat
- The Russell H. Morgan Department of Radiology & Radiological Science, The Johns Hopkins Medical Institutions, 600 North Wolfe Street, Baltimore, MD 21287, USA.
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2
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Liu L, Wang T, Qi H. Foot pain in children and adolescents: a problem-based approach in musculoskeletal ultrasonography. Ultrasonography 2024; 43:193-208. [PMID: 38644779 PMCID: PMC11079505 DOI: 10.14366/usg.24002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/14/2024] [Accepted: 03/19/2024] [Indexed: 04/23/2024] Open
Abstract
Various etiologies and risk factors contribute to foot pain in children and adolescents, including conditions such as Kohler's disease, Sever's disease, Iselin's disease, rigid flat foot, accessory navicular, Freiberg's disease, sesamoiditis, os trigonum syndrome, and more. High-frequency musculoskeletal ultrasonography can show both the bone surface and the surrounding soft tissue clearly from various angles in real-time, thereby providing a higher level of detail that is helpful for identifying the etiology of foot pain and monitoring disease progression compared with other imaging modalities. This review provides an overview of the epidemiology, pathophysiology, clinical manifestations and characteristic ultrasonographic findings of select foot pain conditions in children and adolescents.
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Affiliation(s)
- Lihua Liu
- Department of Ultrasound, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Tiezheng Wang
- Department of Ultrasound, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Hengtao Qi
- Department of Ultrasound, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
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3
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Debs P, Fayad LM, Ahlawat S. Magnetic Resonance Neurography of the Foot and Ankle. Foot Ankle Clin 2023; 28:567-587. [PMID: 37536819 DOI: 10.1016/j.fcl.2023.04.003] [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] [Indexed: 08/05/2023]
Abstract
Peripheral neuropathies of the foot and ankle can be challenging to diagnose clinically due to concomitant traumatic and nontraumatic or degenerative orthopedic conditions. Although clinical history, physical examination, and electrodiagnostic testing comprised of nerve conduction velocities and electromyography are used primarily for the identification and classification of peripheral nerve disorders, MR neurography (MRN) can be used to visualize the peripheral nerves as well as the skeletal muscles of the foot and ankle for primary neurogenic pathology and skeletal muscle denervation effect. Proper knowledge of the anatomy and pathophysiology of peripheral nerves is important for an MRN interpretation.
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Affiliation(s)
- Patrick Debs
- The Russell H. Morgan Department of Radiology & Radiological Science, The Johns Hopkins Medical Institutions, 600 North Wolfe Street, Baltimore, MD 21287, USA
| | - Laura M Fayad
- The Russell H. Morgan Department of Radiology & Radiological Science, The Johns Hopkins Medical Institutions, 600 North Wolfe Street, Baltimore, MD 21287, USA
| | - Shivani Ahlawat
- The Russell H. Morgan Department of Radiology & Radiological Science, The Johns Hopkins Medical Institutions, 600 North Wolfe Street, Baltimore, MD 21287, USA.
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4
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Cilengir AH, Bayraktar ES, Dursun S, Ozdemir M, Altay S, Elmali F, Tosun O. A retrospective magnetic resonance imaging analysis of bone and soft tissue changes associated with the spectrum of tarsal coalitions. Clin Anat 2023; 36:336-343. [PMID: 35384073 DOI: 10.1002/ca.23866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/27/2022] [Accepted: 03/28/2022] [Indexed: 11/10/2022]
Abstract
We aimed to investigate the bone and soft tissue changes accompanying tarsal coalition (TC) and aimed to evaluate their association with the location and type of coalition. Ankle magnetic resonance imagings of 65 patients with TC were included. The relationship between the location and type of coalition and bone marrow edema, subchondral cysts, sinus tarsi syndrome, tarsal tunnel syndrome, posterior impingement syndrome, accessory bone, tibiotalar effusion, talar osteochondritis dissecans, ganglion cysts, and calcaneal spur were evaluated. Twenty-nine patients without coalition were selected as the control group, and the distribution of these variables between the two groups was analyzed. There were 33 females and 32 males in the coalition group (mean age: 42.0 ± 15.63 years), and 22 females and seven males in the control group (mean age: 44.79 ± 12.33 years). Coalition was most common in the talocalcaneal joint (n = 33, 50.8%), and the most common coalition type was non-osseous (n = 57, 87.6%). We find no significant difference between the pathologies defined in terms of coalition location and type. Sinus tarsi syndrome, tarsal tunnel syndrome, subchondral cysts, and tibiotalar effusion were found to be more common in the coalition group (p = 0.028, p = 0.010, p = 0.023, and p = 0.006, respectively). The presence of coalition increased the probability of developing tarsal tunnel syndrome 9.91 times (95% CI: [1.25-78.59]; p = 0.029), and sinus tarsi syndrome 3.66 times (95% CI: [1.14-11.78]; p = 0.029). Tarsal coalition may predispose bone and soft tissue changes. In this study, sinus tarsi syndrome, tarsal tunnel syndrome, subchondral cysts and tibiotalar effusion were found to be more common in the coalition group.
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Affiliation(s)
| | - Ezgi Suat Bayraktar
- Department of Radiology, Izmir Katip Celebi University Ataturk Training and Research Hospital, Izmir, Turkey
| | - Suat Dursun
- Department of Radiology, Hatay Training and Research Hospital, Hatay, Turkey
| | - Mehmet Ozdemir
- Department of Orthopedics, Izmir Katip Celebi University Ataturk Training and Research Hospital, Izmir, Turkey
| | - Sedat Altay
- Department of Radiology, Izmir Katip Celebi University Ataturk Training and Research Hospital, Izmir, Turkey
| | - Ferhan Elmali
- Faculty of Medicine, Department of Biostatistics, Izmir Katip Celebi University, Izmir, Turkey
| | - Ozgur Tosun
- Department of Radiology, Izmir Katip Celebi University Ataturk Training and Research Hospital, Izmir, Turkey
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Aparisi Gómez MP, Bazzocchi A, Simoni P, Inarejos Clemente EJ. Postsurgical Evaluation of the Pediatric Foot and Ankle. Semin Musculoskelet Radiol 2022; 26:755-776. [PMID: 36791743 DOI: 10.1055/s-0042-1760244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
This article reviews situations in which surgical treatment is required in the context of different types of pathology in the foot and ankle of children, focusing on the role of imaging in surgical planning and postsurgical assessment. The types of pathology analyzed from this perspective are congenital pathology, neuromuscular disorders, osteochondral lesions, fractures and infection, ligament injuries, and tumors.We address the most common pitfalls of postsurgical imaging of the ankle and foot in children. With some exceptions, postsurgical follow-up focuses on clinical assessment, with imaging follow-up only needed in patients where complications are suspected or symptoms recur. Postoperative assessment of the foot and ankle in children and adolescents requires knowing the indications for surgery and the most common types of interventions, along with their imaging characteristics. The radiologist needs to be aware of the normal sequence of development of structures and how to select adequate imaging techniques to assess anatomy at various stages or in different postsurgical scenarios.
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Affiliation(s)
- Maria Pilar Aparisi Gómez
- Department of Radiology, Auckland City Hospital, Auckland, New Zealand.,Department of Radiology. IMSKE, València, Spain
| | - Alberto Bazzocchi
- Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Paolo Simoni
- Diagnostic Imaging Department, "Reine Fabiola" Children's University Hospital, Université Libre de Bruxelles, Brussels, Belgium
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6
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Khodatars D, Gupta A, Welck M, Saifuddin A. An update on imaging of tarsal tunnel syndrome. Skeletal Radiol 2022; 51:2075-2095. [PMID: 35562562 DOI: 10.1007/s00256-022-04072-y] [Citation(s) in RCA: 4] [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: 03/13/2022] [Revised: 05/02/2022] [Accepted: 05/07/2022] [Indexed: 02/02/2023]
Abstract
Tarsal tunnel syndrome (TTS) is an entrapment neuropathy of the tibial nerve (TN) within the tarsal tunnel (TT) at the level of the tibio-talar and/or talo-calcaneal joints. Making a diagnosis of TTS can be challenging, especially when symptoms overlap with other conditions and electrophysiological studies lack specificity. Imaging, in particular MRI, can help identify causative factors in individuals with suspected TTS and help aid surgical management. In this article, we review the anatomy of the TT, the diagnosis of TTS, aetiological factors implicated in TTS and imaging findings, with an emphasis on MRI.
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Affiliation(s)
- Davoud Khodatars
- Radiology Department, Royal National Orthopaedic Hospital, Stanmore, UK.
| | - Ankur Gupta
- Foot and Ankle Orthopaedic Surgery Department, Royal National Orthopaedic Hospital, Stanmore, UK
| | - Matthew Welck
- Foot and Ankle Orthopaedic Surgery Department, Royal National Orthopaedic Hospital, Stanmore, UK
| | - Asif Saifuddin
- Radiology Department, Royal National Orthopaedic Hospital, Stanmore, UK
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KIM K, KOKUBO R, ISU T, NARIAI M, MORIMOTO D, KAWAUCHI M, MORITA A. Magnetic Resonance Imaging Findings in Patients with Tarsal Tunnel Syndrome. Neurol Med Chir (Tokyo) 2022; 62:552-558. [PMID: 36184477 PMCID: PMC9831623 DOI: 10.2176/jns-nmc.2022-0118] [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] [Indexed: 01/21/2023] Open
Abstract
Tarsal tunnel syndrome (TTS) is a common entrapment syndrome whose diagnosis can be difficult. We compared preoperative magnetic resonance imaging (MRI) and operative findings in 23 consecutive TTS patients (28 sides) whose mean age was 74.5 years. The 1.5T MRI sequence was 3D T2* fat suppression. We compared the MRI findings with surgical records and intraoperative videos to evaluate them. MRI- and surgical findings revealed that a ganglion was involved on one side (3.6%), and the other 27 sides were diagnosed with idiopathic TTS. MRI visualized the nerve compression point on 23 sides (82.1%) but failed to reveal details required for surgical planning. During surgery of the other five sides (17.9%), three involved varices, and on one side each, there was connective tissue entrapment or nerve compression due to small vascular branch strangulation. MRI studies were useful for nerve compression due to a mass lesion or idiopathic factors. Although MRI revealed the compression site, it failed to identify the specific involvement of varices and small vessel branches and the presence of connective tissue entrapment.
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Affiliation(s)
- Kyongsong KIM
- Department of Neurological Surgery, Chiba Hokuso Hospital, Nippon Medical School, Inzai, Chiba, Japan,Department of Neurosurgery, Chiba Shintoshi Rurban Clinic, Inzai, Chiba, Japan
| | - Rinko KOKUBO
- Department of Neurological Surgery, Chiba Hokuso Hospital, Nippon Medical School, Inzai, Chiba, Japan
| | - Toyohiko ISU
- Department of Neurosurgery, Kushiro Rosai Hospital, Kushiro, Hokkaido, Japan
| | - Michinori NARIAI
- Department of Radiology, Chiba Shintoshi Rurban Clinic, Inzai, Chiba, Japan
| | - Daijiro MORIMOTO
- Department of Neurological Surgery, Nippon Medical School, Tokyo, Japan
| | - Masaaki KAWAUCHI
- Department of Neurosurgery, Chiba Shintoshi Rurban Clinic, Inzai, Chiba, Japan
| | - Akio MORITA
- Department of Neurological Surgery, Nippon Medical School, Tokyo, Japan
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Fortier LM, Leethy KN, Smith M, McCarron MM, Lee C, Sherman WF, Varrassi G, Kaye AD. An Update on Posterior Tarsal Tunnel Syndrome. Orthop Rev (Pavia) 2022; 14:35444. [PMID: 35769658 PMCID: PMC9235437 DOI: 10.52965/001c.35444] [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: 06/29/2021] [Accepted: 01/12/2022] [Indexed: 09/14/2023] Open
Abstract
Posterior tarsal tunnel syndrome (PTTS) is an entrapment neuropathy due to compression of the tibial nerve or one of its terminal branches within the tarsal tunnel in the medial ankle. The tarsal tunnel is formed by the flexor retinaculum, while the floor is composed of the distal tibia, talus, and calcaneal bones. The tarsal tunnel contains a number of significant structures, including the tendons of 3 muscles as well as the posterior tibial artery, vein, and nerve. Focal compressive neuropathy of PTTS can originate from anything that physically restricts the volume of the tarsal tunnel. The variety of etiologies includes distinct movements of the foot, trauma, vascular disorders, soft tissue inflammation, diabetes mellitus, compression lesions, bony lesions, masses, lower extremity edema, and postoperative injury. Generally, compression of the posterior tibial nerve results in clinical findings consisting of numbness, burning, and painful paresthesia in the heel, medial ankle, and plantar surface of the foot. Diagnosis of PTTS can be made with the presence of a positive Tinel sign in combination with the physical symptoms of pain and numbness along the plantar and medial surfaces of the foot. Initially, patients are treated conservatively unless there are signs of muscle atrophy or motor nerve involvement. Conservative treatment includes activity modification, heat, cryotherapy, non-steroidal anti-inflammatory drugs, corticosteroid injections, opioids, GABA analog medications, tricyclic antidepressants, vitamin B-complex supplements, physical therapy, and custom orthotics. If PTTS is recalcitrant to conservative treatment, standard open surgical decompression of the flexor retinaculum is indicated. In recent years, a number of alternative minimally invasive treatment options have been investigated, but these studies have small sample sizes or were conducted on cadaveric models.
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Affiliation(s)
| | - Kenna N Leethy
- Louisiana State University Shreveport School of Medicine
| | - Miranda Smith
- Louisiana State University Shreveport School of Medicine
| | | | - Christopher Lee
- Department of Internal Medicine, Creighton University School of Medicine-Phoenix Regional Campus
| | | | | | - Alan D Kaye
- Department of Anesthesiology, Louisiana State University New Orleans
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Jo SY, Khurana N, Shabshin N. Imaging of Entrapment Neuropathies in the Ankle. Semin Musculoskelet Radiol 2022; 26:163-171. [PMID: 35609577 DOI: 10.1055/s-0042-1743406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Entrapment neuropathies of the ankle and foot pose a major diagnostic challenge and thus remain underdiagnosed. Recent advancements in imaging modalities, including magnetic resonance neurography (MRN), have resulted in considerable improvement in the anatomical localization and identification of pathologies leading to nerve entrapment. MRN supplements clinical examination and electrophysiologic studies in the diagnosis of neuropathies, aids in assessing disease severity, and helps formulate management strategies. A comprehensive understanding of the anatomy and imaging features of the ankle is essential to diagnose and manage entrapment neuropathies accurately. Advancements in imaging and their appropriate utilization will ultimately lead to better diagnoses and improved patient outcomes.
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Affiliation(s)
- Stephanie Y Jo
- Division of Musculoskeletal Imaging, Department of Radiology, Penn Musculoskeletal Center, Philadelphia, Pennsylvania
| | - Navpreet Khurana
- Division of Musculoskeletal Imaging, Department of Radiology, Penn Musculoskeletal Center, Philadelphia, Pennsylvania
| | - Nogah Shabshin
- Division of Musculoskeletal Imaging, Department of Radiology, Penn Musculoskeletal Center, Philadelphia, Pennsylvania.,Emek Medical Center, Clalit Healthcare Services, Afula, Israel
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Abstract
Complex tarsal coalition includes extensive talocalcaneal coalition, double or triple coalition, coalition with severe hindfoot deformities, or coalition with a ball-and-socket ankle deformity. Careful preoperative physical examination including diagnostic injection is important in treatment planning. Both radiographic examination and computed tomographic scan that involve not only the foot but also the ankle are necessary to analyze the location and size of the coalitions, determining the presence of arthritis in the involved or adjacent joints, and if there are any deformities including a ball-and-socket ankle, which is frequently associated with complex tarsal coalitions.
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Affiliation(s)
- Shuyuan Li
- Department of Orthopaedic Surgery, University of Colorado, Denver, CO, USA; Steps2Walk, Denver, CO, USA.
| | - Mark S Myerson
- Department of Orthopaedic Surgery, University of Colorado, Denver, CO, USA
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3-T MRI of the Ankle Tendons and Ligaments. Clin Sports Med 2021; 40:731-754. [PMID: 34509208 DOI: 10.1016/j.csm.2021.05.009] [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: 11/22/2022]
Abstract
Ankle sprain is the most common injury in athletic populations. Ligament and tendon pathologies of the ankle are common, ranging from traumatic injuries to degeneration leading to chronic pain and acquired foot deformities. MRI is the imaging modality of choice to evaluate tendon and ligament pathology of the ankle, specifically derangements of tendons and ligaments. 3-T MRI offers improved imaging characteristics relative to 1.5-T MRI, allowing for better delineation of anatomic detail and pathology. This article provides a review of the anatomy and common pathologies of the ankle ligaments and tendons using high-resolution 3-T MRI.
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Abstract
INTRODUCTION Pediatric orthopaedic patients have the potential for significant radiation exposure from the use of imaging studies, such as computed tomography and bone scintigraphy. With the potential for long-term treatment, such as is required for scoliosis or osteogenesis imperfecta, patients are at even greater risk of radiation-induced carcinogenesis. DISCUSSION Although an association between radiation and cancer risk is evident, causation is difficult to prove because comorbidities or genetic predispositions may play a role in the higher baseline rates of malignancy later in life. Efforts have been made over the years to reduce exposure using more modern imaging techniques and simple radiation reduction strategies. Educational efforts and clinical practice guidelines are decreasing the rate of computed tomography scan use in pediatrics. Although considerable work is being done on the development of radiation-free imaging modalities, imaging that uses ionizing radiation will, in the near term, be necessary in specific circumstances to provide optimal care to pediatric orthopaedic patients. CONCLUSION Knowledge of the ionizing radiation exposure associated with commonly used tests as well as radiation-reduction strategies is essential for the optimal and safe care of pediatric orthopaedic patients.
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Affiliation(s)
- Jeffrey R Sawyer
- Department of Orthopaedic Surgery, University of Tennessee/Campbell Clinic, Memphis, TN
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Wang T, Qi H, Rong K, Zhang S, Bao S, Cheng T, Teng J. The role of ultrasonography in the diagnosis of talocalcaneal coalitions. Acta Radiol 2021; 62:897-903. [PMID: 32757638 DOI: 10.1177/0284185120944911] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Patients with talocalcaneal coalitions (TCC) often undergo computed tomography (CT). However, ultrasonography diagnosis of TCC has been seldom done according to the literature. PURPOSE To investigate the accuracy of ultrasonography in diagnosing TCC compared to CT. MATERIAL AND METHODS Ninety-seven consecutive patients with a clinical suspicion of TCC were included. Ultrasonography was used to assess the classification and complication of TCC. The main sonographic criteria for a positive diagnosis in cases of osseous coalition were the joint space between the medial surface of talar head and the underlying sustentaculum tali of calcaneus disappearing and being replaced by a continuous hyperechoic bony structure. In cases of fibrous coalition, ultrasonography revealed a reduced space of the joint associated with an irregular, angular appearance of its outline and hypoechoic fibrous tissue inside. These data were compared with CT findings. κ statistic was applied to determine the level of agreement. The sensitivity, specificity, positive and negative predictive values, accuracy, and Youden index of ultrasonography as a diagnostic method were assessed. RESULTS Ultrasonography findings were positive in 20 of 97 patients with a clinical suspicion of TCC. The diagnosis was confirmed by CT in 21 patients. There were one false-positive result and two false-negative results by ultrasonography. The κ value was 0.907. The sensitivity, specificity, positive and negative predictive values, accuracy, and Youden index of ultrasonography were 90.5%, 98.7%, 95.0%, 97.4%, 96.9%, and 0.892, respectively. CONCLUSION Ultrasonography could be a reliable, accurate, and non-radioactive diagnostic imaging method in diagnosis of patients with suspected TCC.
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Affiliation(s)
- Tiezheng Wang
- Shandong Medical Imaging Research Institute Affiliated to Shandong University, Jinan, Shandong, PR China
| | - Hengtao Qi
- Shandong Medical Imaging Research Institute Affiliated to Shandong University, Jinan, Shandong, PR China
| | - Kai Rong
- Department of Hand-Foot Surgery, Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
| | - Shuqian Zhang
- Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Shougang Bao
- Shandong Medical Imaging Research Institute Affiliated to Shandong University, Jinan, Shandong, PR China
| | - Tianqing Cheng
- Department of Hand-Foot Surgery, Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
| | - Jianbo Teng
- Shandong Medical Imaging Research Institute Affiliated to Shandong University, Jinan, Shandong, PR China
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Abstract
The assessment of bone mainly relies on standard radiographs, CT, MRI, and bone scintigraphy depending on the anatomic region complexity and clinical scenario. Ultrasound (US), due to different acoustic impedance between soft tissues and the bone cortex, only allows the evaluation of the bone surfaces. Nevertheless, US can be useful in the evaluation of several bone disorders affecting the limbs as a result of its tomographic capabilities and high definition. This pictorial review article summarises our clinical experience in adults and reviews the literature on US bone examination. We first present the US appearance of normal bone and the main congenital anatomic variations, after which we illustrate the US findings of a variety of bone disorders. Although US has limits in bone assessment, its analysis must be a part of every musculoskeletal US examination.
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Affiliation(s)
- Stefano Bianchi
- CIM SA Cabinet Imagerie Médicale, 40a route de Malagnou, 1208, Geneva, Switzerland.
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Qu W, Liu T, Chen W, Sun Z, Dong S, Chen M. Effect of extensive tenosynovectomy on diffuse flexor hallucis longus tenosynovitis combined with effusion. J Orthop Surg (Hong Kong) 2020; 27:2309499019863355. [PMID: 31366279 DOI: 10.1177/2309499019863355] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE The objective of this study was to examine the clinical and magnetic resonance imaging (MRI) outcomes of extensive tenosynovectomy on patients with diffuse flexor hallucis longus tenosynovitis combined with effusion (DFHLT-E). METHODS Consecutive patients undergoing extensive tenosynovectomy for DFHLT-E in the same foot and ankle center from January 2013 to December 2016 were selected; a total of 14 patients were included in the final analysis. Patients with a minimum 1-year follow-up were evaluated with physical examination, MRI, American Orthopaedic Foot and Ankle Society (AOFAS) clinical midfoot scale, and visual analog scale (VAS) pain scores. RESULTS The 14 patients were followed up for an average of 15.0 ± 2.3 months (12-18 months). There were no recurrences in all clinical examinations at the final follow-up. The AOFAS score was improved from 61.57 ± 10.70 before surgery to 90.28 ± 9.41 at the final follow-up. The difference was statistically significant (p = 0.001). The VAS score was improved from 4.00 ± 0.82 before surgery to 0.43 ± 0.53 at the final follow-up (p < 0.001). MRI examination revealed two patients with small residual and limited effusion with no clinical symptoms. Superficial pin infection was observed in one patient, and two patients had transient neurostimulation. CONCLUSIONS Extensive tenosynovectomy is an effective alternative for the treatment of DFHLT-E with less complications or recurrence.
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Affiliation(s)
- Wenqing Qu
- 1 Department of Foot and Ankle Surgery, Yantaishan Hospital, Yantai, China
| | - Tong Liu
- 1 Department of Foot and Ankle Surgery, Yantaishan Hospital, Yantai, China
| | - Wentao Chen
- 2 Department of Orthopedics, Friendship Hospital, Beijing, China
| | - Zhenzhong Sun
- 3 Department of Radiology, Yantaishan Hospital, Yantai, China
| | - Shengjie Dong
- 4 Department of Joint Surgery, Yantaishan Hospital, Yantai, China
| | - Mingxia Chen
- 5 Department of Pathology, Yantaishan Hospital, Yantai, China
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16
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Anteroposterior Radiograph of the Ankle with Cross-Sectional Imaging Correlation. Magn Reson Imaging Clin N Am 2019; 27:701-719. [PMID: 31575401 DOI: 10.1016/j.mric.2019.07.001] [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: 11/21/2022]
Abstract
The focus of this article is to illustrate various pathologic entities and variants, heralding disease about the ankle, based on scrutiny of AP radiographs of the ankle, with correlative findings on cross-sectional imaging. Many of these entities can only be detected on the AP ankle radiograph and, if not recognized, may lead to delayed diagnosis and persistent morbidity to the patient. However, a vigilant radiologist, equipped with the knowledge of the characteristic appearance and typical locations of the imaging findings, should be able to make the crucial initial diagnosis and surmise additional findings to be confirmed on cross-sectional imaging.
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17
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Garwood ER, Duarte A, Bencardino JT. MR Imaging of Entrapment Neuropathies of the Lower Extremity. Radiol Clin North Am 2018; 56:997-1012. [DOI: 10.1016/j.rcl.2018.06.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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