FOIA official website and that any information you provide is encrypted This site needs JavaScript to work properly. Touch device users, explore by touch or with swipe gestures. eCollection 2022. Authors N J Bureau 1 , E Cardinal, R Hobden, B Aubin. Al Buwairda St, Doha, Qatar; Department of Radiology, Boston University School of Medicine . Plantarflexion: 0-40 degrees. Radiology. 171 Delancey Street Suite 210 New York, NY 10002, Home | Disclaimer | Privacy | Sitemap | Feedback | Tell a Friend | Contact Us | Accessibility Statement. sharing sensitive information, make sure youre on a federal Posterior ankle impingement syndrome refers to a group of abnormal entities that result from repetitive or acute forced plantar flexion of the foot . Their clinical records and imaging studies . The site is secure. Ortho A large os trigonum with mild edema seen along the synchondrosis of an os trigonum and the talus with associated osteophytes, subarticular pseudocysts, and mild regional surrounding soft tissue edema. Electronic address: gary.limarzi.md@flhosp.org. 2021 May 15;3(4):e1077-e1086. A CT arthrography study, Magnetic resonance arthrography including ABER view in diagnosing partial-thickness tears of the rotator cuff: accuracy, and inter- and intra-observer agreements, Quantitative assessment of morphology, T1, and T2 of shoulder cartilage using MRI. official website and that any information you provide is encrypted 2022. An official website of the United States government. Thirty-eight patients (20 females, 18 males), 51 ankles, with an average age of 12.9 years had an average 18-month delay in diagnosis. Accessibility doi: 10.1007/s12306-013-0286-8. Posterior impingement syndromes of the ankle. Federal government websites often end in .gov or .mil. 2012 Sep-Oct;51(5):687-9 Posterior hindfoot impingement most commonly occurs in middle-aged and older individuals with a chronic hindfoot valgus deformity. Before York, NY. Posterior ankle impingement (PAI) is an umbrella term for a collection of pathologies that cause posterior ankle pain with ankle plantarflexion (pointing the toes downwards). Results: doi: 10.1016/j.asmr.2021.03.013. Symptoms of posterior ankle impingement are due to failure to accommodate the reduced interval between the posterosuperior aspect of the talus and tibial plafond during plantar flexion, and can be due to osseous or soft tissue lesions. . All 51 ankles had a PAIS diagnosis confirmed during arthroscopy. Am J Sports Med. Explore. This can lead to bone spurs on the tibia or talus and synovitis. Tendons: check the tendons using the four quadrant approach; 4 Maquirriain J. Posterior ankle impingement. Would you like email updates of new search results? Disclaimer, National Library of Medicine there may be tenosynovitis involving the flexor hallucis longus. Anterior and Posterior Ankle Impingement. The .gov means its official. Objective: To identify the possible role of imaging in the delayed diagnosis of PAIS and identify key findings on imaging to suggest PAIS in pediatric and adolescent patients. Sugimoto K, Isomoto S, Samoto N, Matsui T, Tanaka Y. Arthrosc Sports Med Rehabil. Osteophytes of the posterosuperior calcaneus opposed to the os trigonum are also noted. Materials and methods: 2019 Oct 18;10(10):364-370. doi: 10.5312/wjo.v10.i10.364. 1, Radiologic Clinics of North America, Vol. World J Orthop. Posterior humeral head remodeling is an important clue to the radiologist that the . Anterior ankle impingement, also referred to as athletes ankle or footballers ankle, occurs when bone or soft tissue in the anterior ankle joint becomes inflamed due to repetitive stress. This will cause pain, swelling and restricted range of motion of the ankle, especially dorsiflexion. 2000 May;215(2):497-503. doi: 10.1148/radiology.215.2.r00ma01497. When physical therapy fails, surgical treatment is often required. PURPOSE: To report the magnetic resonance (MR) imaging findings in seven patients with posterior ankle impingement (PAI) syndrome. The posterior-ankle impingement due to os trigonum can develop after disruption of the os trigonum through a significant acute injury (for example, fracture, fragmentation, and/or pseudoarthrosis). With legs hanging from couch (knee flexion) and knee extension: Dorsiflexion: 0-15 degrees. T2* mapping and delayed gadolinium-enhanced magnetic resonance imaging in cartilage (dGEMRIC) of glenohumeral cartilage in asymptomatic volunteers at 3 T. 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As a ligament injury was suspected to be the cause of the patient's symptoms, a magnetic resonance (MR) imaging scan of the ankle was performed with a high-resolution surface coil on a 1.5-tesla (T) scanner. This arthroscopic approach can now be done in the office via nano-arthroscopy to allow rapid return to sport. Affiliation 1 Department of Radiology, Hpital . 57, No. At an average follow-up of 10.2 months, there was improvement of VAS pain (7.0 to 1.1) and AOFAS ankle-hindfoot scores (65.1 to 93.5). Data were collected prospectively in patients younger than 18 years of age who underwent arthroscopy after being diagnosed with PAIS. Check for errors and try again. Impingement can be a consequence of ineffective rehabilitation following an injury and may also be due to bone spurs and . and transmitted securely. Posterior ankle impingement syndrome and os trigonum relationship in children. Careers. Arthroscopic versus posterior endoscopic excision of a symptomatic os trigonum: a retrospective cohort study. Dr. Kennedy and his team have been in the forefront of investigating and utilizing biologics and nano-arthroscopy in the treatment of musculoskeletal injuries. The largest series in North America was reported by our team on this condition treated with arthroscopic resection, providing much shorter time to return to play sports. Twenty-seven of the 38 (73%) patients had previously seen multiple medical providers and were given multiple misdiagnoses. (2000) Posterior ankle impingement syndrome: MR imaging findings in seven patients. may demonstrate posterolateral capsular thickening and synovitis involving an intact posterior talofibular ligament. localized fluid and/or edema in the posterior joint . 3 Van Dijk NC. . Pathophysiology and clinical features Posterior impingement, or so-called "os trigonum syndrome," is caused by repetitive plantar flexion leading to compression of bone and soft tissues at the posterior ankle [6, 49, 50]. government site. North Clin Istanb. Anterior ankle impingement, also referred to as athletes ankle or footballers ankle, occurs when bone or soft tissue in the anterior ankle joint becomes inflamed due to repetitive stress. 2013 May;41(5):1082-9. doi: 10.1177/0363546513480614. E., Hobden R., et al. Keywords: Different names have been given to posterior ankle impingement syndrome, including the os trigonum syndrome, talar compression syndrome, and posterior block of the ankle. Materials and methods: Data were collected prospectively in patients younger . To identify the possible role of imaging in the delayed diagnosis of PAIS and identify key findings on imaging to suggest PAIS in pediatric and adolescent patients. Objective: eCollection 2019 Oct 18. CT. Axial bone window. Focal marrow edema signal of the medial talar dome is seen with hypointense T1 and hyperintense T2 and STIR signal with likely small osteochondral lesion. Kennedy, MD, FRCS, Lower Limb, Foot & Ankle, Cartilage Restoration, Orthopedic Surgeon, New A typical injury mechanism is plantar flexion, inversion and internal rotation, which causes compression and injury of the posterior tibiotalar ligament and the posteromedial joint capsule 2. Posterior elbow impingement specialist, Doctor Riley J. Williams provides diagnosis as well as surgical and nonsurgical treatment options for patients in Manhattan, Brooklyn, New York City and surrounding areas who are . HHS Vulnerability Disclosure, Help government site. D Karasick, M E Schweitzer. 3, Current Sports Medicine Reports, Vol. Another shoulder impingement [in French], Impingement of the deep surface of the supraspinatus tendon on the posterosuperior glenoid rim: An arthroscopic study, Shoulder and Elbow Lesions Distinctive of Baseball Players, Abduction and external rotation in shoulder impingement: an open MR study on healthy volunteers initial experience, MR imaging of the throwers shoulder. Anterior ankle impingment syndrome is less frequent, but associated with a longer absence and higher re-injury rate compared to posterior syndrome: a prospective cohort study of 6754 male professional soccer players. Anterior ankle impingement, also referred to as "athlete's ankle" or "footballer's ankle," occurs when bone or soft tissue in the anterior ankle joint becomes inflamed due to repetitive stress. MRI. Please enable it to take advantage of the complete set of features! American journal of roentgenology. This condition is most commonly seen in ballet dancers and soccer players . MATERIALS AND METHODS: Seven patientsthree ballet dancers, one badminton player, one soccer player, one hockey player, and one construction workerwho presented with posterior ankle pain were assessed with MR imaging. Bookshelf NCI CPTC Antibody Characterization Program. MeSH Acetabular retroversion is a form of hip dysplasia where the cranial opening of the acetabulum faces backward rather than forward in the sagittal plane , .The prevalence of acetabular retroversion is 4-7% in individuals with pelvises exhibiting normal anterior pelvic tilt , , and is most commonly seen in young females .The condition is genuine , associated with increased antero . 3 MRI of Ankle and Lateral . D'Hooghe P, Waldn M, Hgglund M, Bengtsson H, Ekstrand J. Knee Surg Sports Traumatol Arthrosc. 8600 Rockville Pike Knee Surg Sports Traumatol Arthrosc. 2022 Oct 8;17(1):444. doi: 10.1186/s13018-022-03345-5. 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J Dance Med Sci. {"url":"/signup-modal-props.json?lang=us\u0026email="}, Saber M, Posterior ankle impingement (Os trigonum syndrome). Magn Reson Imaging Clin N Am. The procedure can be done arthroscopically and special instruments are used to shave away redundant soft tissues and bone spurs. 2013 Aug;97 Suppl 2:S161-8. Posterior ankle impingement is a clinical diagnosis which can be seen following a traumatic hyper-plantar flexion event and may lead to painful symptoms in athletes such as female dancers ('en pointe'), football players, javelin throwers and gymnasts. PURPOSE: To report the magnetic resonance (MR) imaging findings in seven patients with posterior ankle impingement (PAI) syndrome. doi: 10.1016/j.mric.2009.06.006. PMC 2013 Mar;34(3):459-65. doi: 10.1177/1071100713477609. Results of Treatment of Posterior Ankle Impingement Syndrome and Flexor Hallucis Longus Tendinopathy in Dancers: A Systematic Review. Posteromedial ankle impingement usually occurs as a consequence of an acute traumatic injury. Epub 2021 May 19. Recovery is a matter of a few weeks before patients can resume sports. Pathoanatomy of posterior ankle impingement in ballet dancers. Symptoms often include hindfoot pain on weight-bearing, swelling and tenderness in the region anterior and inferior to the lateral malleolus, and limited subtalar range of motion. eCollection 2021 Aug. Ankle impingement: a review of multimodality imaging approach. Systematic approach. Baillie P, Cook J, Ferrar K, Smith P, Lam J, Mayes S. Skeletal Radiol. Today. The https:// ensures that you are connecting to the This can lead to bone spurs on the tibia or talus and synovitis. 2009 Nov;17(4):775-800, vii-viii. Nikolopoulos D, Safos G, Moustakas K, Sergides N, Safos P, Siderakis A, Kalpaxis D, Moutsios-Rentzos A. Thirty patients had magnetic resonance imaging (MRI) and findings included the presence of an os trigonum/Stieda process (94%) with associated osseous edema (69%), flexor hallucis longus (FHL) tenosynovitis (16%), and edema in Kager's fat pad (63%). The https:// ensures that you are connecting to the PMID: 30322489. PMC Bethesda, MD 20894, Web Policies Posterior ankle impingement syndrome: MR imaging findings in seven patients Radiology. 2018 Mar 15;22(1):19-32. doi: 10.12678/1089-313X.22.1.19. Bethesda, MD 20894, Web Policies The yellow circles highlight the changes along the os trigonum/ talus synchondrosis, Here is a case of Os trigonum syndrome, one of the predisposing factors of posterior ankle impingement with typical CT and MRI features along the os trigonum/ talus synchondrosis. Anterior Ankle Impingement. 03, Seminars in Musculoskeletal Radiology, Vol. Epub 2021 Apr 7. This condition is often seen in ballet dancers, runners and soccer players. 18, No. The os trigonum syndrome: imaging features. -, Clin Radiol. Accessibility No joint effusion. Clipboard, Search History, and several other advanced features are temporarily unavailable. 2008 Jun;12(2):154-69. doi: 10.1055/s-2008-1078703. Wall Plug. Giannini S, Buda R, Mosca M, Parma A, Di Caprio F. Foot Ankle Int. Background: Endoscopic Treatment of Posterior Ankle Impingement Secondary to Os Trigonum in Recreational Athletes. . Their clinical records and imaging studies . The diagnosis of PAIS is based on patient's clinical history and physical examination with the hyperplantarflexion test as a very important part of it and Conservative treatment is recommended as the primary treatment strategy. Viewer, The Radiologists Primer to Imaging the Noncuff, Nonlabral Postoperative Shoulder, Comprehensive Shoulder US Examination: A Standardized Approach with Multimodality Correlation for Common Shoulder Disease, Beyond the Cuff: MR Imaging of Labroligamentous Injuries in the Athletic Shoulder, Coracoid Process: The Lighthouse of the Shoulder, Shoulder Arthroplasty, from Indications to Complications: What the Radiologist Needs to Know, Easier to Catch Than a Can of Corn: MRI and MRI Arthrogram of Shoulder Injuries in the Throwing Athlete , All About the Subscapularis Tendon - A Case-based Review with Image-arthroscopic Correlations, Magnetic Resonance Imaging Findings of Superior Capsular Reconstruction in the Shoulder, Avulsion fracture of the coracoid process of the scapula. The typical imaging finding of internal impingement in addition to posterosuperior rotator cuff and labral tears is remodeling of the posterior humeral head, consisting of subcortical cyst formation, bone marrow edema, and cortical flattening or depression . Before Pinterest. Osteophytes of the posterosuperior calcaneus opposed to the os trigonum are also noted. Posterior ankle impingement syndrome (PAIS) . Copyright 2015 Elsevier Ireland Ltd. All rights reserved. Unable to process the form. Posterior ankle impingement syndrome (PAIS) is a clinical syndrome characterized by posterior ankle pain which occurs in maximal forced plantar flexion of the foot. Clin Anat. 3 Department of Radiology, MSK Division, University of Michigan Health System, 1500 Medical Center Drive-TC2910Q, Ann Arbor, MI 48109, USA. -, J Orthop Surg Res. The aims of this pictorial review article is to describe different types of posterior ankle impingement due to traumatic and non-traumatic osseous and soft tissue pathology in athletes, to describe diagnostic imaging strategies of these pathologies, and illustrate their imaging features, including relevant differential diagnoses. The scan revealed a well-corticated, triangular bone . Rietveld ABMB, Hagemans FMT, Haitjema S, Vissers T, Nelissen RGHH. Increased awareness about this condition is needed among radiologists and physicians treating young athletes. Unable to load your collection due to an error, Unable to load your delegates due to an error. Foot Ankle Clin. The posterior talofibular ligament also appears mildly thickened with intermediate T1 and T2 signal intensity. Pre- and postsurgical Visual Analogue Scale (VAS) pain and American Orthopedic Foot Ankle Society (AOFAS) ankle-hindfoot scores were noted. Joints: screen for effusion and look at the joint capsule for thickening. A preliminary report. 6, Expert Opinion on Biological Therapy, Vol. Soft tissue impingement may occur after a lateral ligamentous injury of the ankle and results in chronic pain with mechanical symptoms. Anteromedial impingement of the ankle (AMI) is common in runners and soccer players. (2013) AJR. FOIA . Causes of delayed diagnosis of posterior ankle impingement in the pediatric and adolescent population. -. 215:497-503. Sportschaden, Vol. Semin Musculoskelet Radiol. We use a checklist when evaluating an MRI of the Ankle: Bones: screen on fatsat images for bone marrow edema. This limits the ability of dorsiflexion the ankle has. 3-T MRI of the shoulder: is MR arthrography necessary? Radiology 2001; 221: . Foot (Edinb). Although individual findings were noted, the impression in the MRI reports in 16/32 (50%) did not mention PAIS as the likely diagnosis. -, J Foot Ankle Surg. An official website of the United States government. 24, No. and transmitted securely. sharing sensitive information, make sure youre on a federal Different names have been given to posterior ankle impingement syndrome, including the os trigonum syndrome, talar compression syndrome, and posterior block of the ankle. MeSH Part II: evaluation and treatment of SLAP lesions in throwers, Correlation of glenohumeral internal rotation deficit and total rotational motion to shoulder injuries in professional baseball pitchers, Deficits in Glenohumeral Passive Range of Motion Increase Risk of Shoulder Injury in Professional Baseball Pitchers: A Prospective Study, Posterior superior glenoid impingement: expanded spectrum, Postero-superior glenoid impingement. Instructions, Anteromedial impingement in the ankle joint: outcomes following arthroscopy, Current concepts review: Arthroscopic treatment of anterior ankle impingement, Hindfoot arthroscopic surgery for posterior ankle impingement: a systematic surgical approach and case series, Surgical treatment for posterior ankle impingement, Posterior ankle impingement syndrome: A systematic four-stage approach, John G. Epub 2013 Aug 15. Conclusion: J Orthop Surg Res. Posterior-ankle impingement syndrome due to os trigonum syndrome. This typically leads to synovial thickening and synovitis . 2004 Nov;59(11):1025-33 A large os trigonum with degenerative changes are seen along the synchondrosis of an os trigonum and the talus in the term of osteophytes and subarticular pseudocysts. PURPOSE: To report the magnetic resonance (MR) imaging findings in seven patients with posterior ankle impingement (PAI) syndrome. Findings. a. Ankle: Passive movement must be assessed with forefoot in supination and inversion of heel (to exclude dorsiflexion at chopart's joint and midtarsal joint and to lock subtalar joint). J Clin Orthop Trauma. accompanying bone contusion may be present, involving the lateral tubercle of the posterior talar process. 2 Department of Radiology, University of Michigan Health System, 1500 Medical Center Drive-TC2910Q, Ann Arbor, MI 48109, USA. Pain felt to the rear of the ankle is the result of compression of the soft tissue or bone when 'plantar flexion' occurs, where the foot and ankle are angled away from the body. 2020 Sep 23;5(3):2473011420945330. doi: 10.1177/2473011420945330. Hamilton, W. (2008) Posterior ankle . Watch. Epub 2013 Mar 20. Radiology 2001; 221: . 03, Current Sports Medicine Reports, Vol. A large os trigonum with degenerative changes are seen along the synchondrosis of an os trigonum and the talus in the term of osteophytes and subarticular pseudocysts. Posterior elbow impingement occurs when the resulting inflammation compresses the synovial tissue within the elbow. Imaging was reviewed retrospectively by two radiologists, compared with findings in literature and an age-matched control group, and correlated with arthroscopic findings. Intact collateral ligaments and tendo-achilles. There was a significant difference in the MRI findings of ankle impingement in the patient population when compared to the control group. Unable to load your collection due to an error, Unable to load your delegates due to an error. Radiology 2000;215: 497-503. 2013 Jun;18(2):301-18 102 cases confirmed at arthroscopic surgery. Anatomical observation, classification, fracture and finite element analysis of the posterior process of the Asian adult talus. Magnetic resonance imaging findings associated with posterior ankle impingement syndrome are prevalent in elite ballet dancers and athletes. 2020 May-Jun;11(3):479-481. doi: 10.1016/j.jcot.2020.03.008. J Am Acad Orthop Surg 2005;13:365-71 Osteophytes of the posterosuperior calcaneus opposed to the os trigonum are also noted. 2010 Sep;23(6):613-21. doi: 10.1002/ca.20991. The site is secure. As determined by thorough pre-operative evaluation of radiology, first soft-tissue impingement is removed, followed by removal of bony impingement The gutters are cleared and the osteophytes are shaved with use of osteotome. PAIS as a diagnosis is commonly delayed clinically in young patients with radiologic misinterpretation being a contributing factor. Internal impingement, latissimus dorsi/subscapularis strains, and related injuries, Internal impingement of the shoulder: comparison of findings between the throwing and nonthrowing shoulders of college baseball players, Shoulder injuries in the overhead athlete, Glenohumeral range of motion deficits and posterior shoulder tightness in throwers with pathologic internal impingement, Shoulder pain in the overhand or throwing athlete. Ankle impingement; Intermalleolar ligament; Os trigonum; Posterior; Posterior tibiotalar ligament; Stiedas process. Federal government websites often end in .gov or .mil. Surgery was indicated after conservative treatment failed. Detection of partial-thickness supraspinatus tendon tears: is a single direct MR arthrography series in ABER position as accurate as conventional MR arthrography? Posterior ankle impingement syndrome (PAIS) results from the pinching of anatomical structures in the posterior part of the ankle. PAIS, may be due to both bone and soft tissue lesions and anatomical variants [].Osseous lesions include the Stieda process, os trigonum, osteophytes, osteochondral lesion, loose bodies, chondromatosis . Posterior Impingement. Posterior ankle impingement syndrome (PAIS) is a range of clinical disorders characterized by posterior ankle pain during plantar flexion [].PAIS has been more widely recognized among athletes. Keywords: In persistent cases, surgery is beneficial. 34, No. After major bone is removed, the edges are shaved off with use of a burr. From the Department of Radiology, New York-Presbyterian Hospital, Columbia University Medical Center, 622 W 168th St, MC-28, New York, NY 10032. There are multiple causes of posterior ankle impingement. Disclaimer, National Library of Medicine This condition is treated with a nano-arthroscopic resection of the bone at the front of the ankle which can be done in office. It is most commonly seen in ballet dancers, soccer players, basketball players, volleyball players, and runners . Foot Ankle Orthop. Case study, Radiopaedia.org (Accessed on 12 Dec 2022) https://doi.org/10.53347/rID-88440, Posterior ankle impingement (Os trigonum syndrome). MATERIALS AND METHODS: Seven patientsthree ballet dancers, one badminton player, one soccer player, one hockey player, and one construction workerwho presented with posterior ankle pain were assessed with MR imaging. 2 Bureau NJ, Cardinal E, Hobden R, Aubin B. Posterior ankle impingement syndrome: MR imaging findings in seven patients. 1. Posterior ankle impingement syndrome refers to a group of abnormal entities that result from repetitive or acute forced plantar flexion of the foot . -, Clin Anat. HHS Vulnerability Disclosure, Help May 5, 2021 - Posterior ankle impingement with elongated posterolateral talar Stieda process. eCollection 2020 Jul. 2021 Jun;47:101799. doi: 10.1016/j.foot.2021.101799. CT. From the case: Posterior ankle impingement (Os . Lower Limb, Foot and Ankle, Cartilage Restoration. 1.INTRODUCTION. Bone Marrow Aspirate (CBMA), Post-operative 2010 Sep;23(6):613-21 Clipboard, Search History, and several other advanced features are temporarily unavailable. . Bookshelf Foot Ankle Clin N Am 2006;11:663-683. Ligaments: check the syndesmosis, the lateral and medial ligaments. Posterior ankle impingement disguised as peroneal tendon subluxation in young athletes - a case report. Radiology. Radiographs were reported normal in 34/47 (72%) ankles. This site needs JavaScript to work properly. Combined Posterior and Anterior Ankle Arthroscopy for Posterior and Anterior Ankle Impingement Syndrome in a Switching Position Xuesong Wang , MD , Zhihong Zhao , MD , [] , Xin Liu , MD , Jin Zhang , MD , and Jiewei Shen , MD +2 -2 View all authors and affiliations How is posterior ankle impingement caused? On MR, abnormal soft tissue thickening may be seen at the lateral . 19, No. Would you like email updates of new search results? When autocomplete results are available use up and down arrows to review and enter to select. However, it usually develops insidiously as a result of repeated forced plantar flexion of the foot and chronic injury to posterior osseous and soft . Case. Russell JA, Kruse DW, Koutedakis Y, McEwan IM, Wyon MA. MATERIALS AND METHODS: Seven patientsthree ballet dancers, one badminton player, one soccer player, one hockey player, and one construction workerwho presented with posterior ankle pain were assessed with MR imaging. Biologics & Stem Cell Treatments, Concentrated The .gov means its official. 2022 Dec;30(12):4262-4269. doi: 10.1007/s00167-022-07004-4. Background: Posterior ankle impingement syndrome (PAIS) results from the pinching of anatomical structures in the posterior part of the ankle. Arthroscopic Treatment of Posterior Ankle Impingement Syndrome: Mid-Term Clinical Results and a Learning Curve. Annotated image. Ankle; Children; Impingement; Magnetic resonance imaging; Os trigonum; Posterior ankle impingement; Stieda process. 2022 Feb 8;9(1):23-29. doi: 10.14744/nci.2021.22587. ADVERTISEMENT: Supporters see fewer/no ads. 3 Sites of soft tissue impingement include anterolateral, posterior, and syndesmotic, with anterolateral impingement being the most common. Careers. 18, No. Epub 2020 Mar 18. Posterior ankle impingement-an underdiagnosed cause of ankle pain in pediatric patients. Mild tibiotalar, talocalcaneal , and talonavicular osteoarthritic changes with marginal osteophytes, Minimal subcutaneous soft tissue edema posterior to the tendon Achilles, Minimal fluid distension of the flexor hallucis longus tendon sheath. 8600 Rockville Pike Indirect MR arthrography of the shoulder: use of abduction and external rotation to detect full- and partial-thickness tears of the supraspinatus tendon, MR arthrographic depiction of tears of the rotator cuff: benefit of abduction and external rotation of the arm, Horizontal component of partial-thickness tears of rotator cuff: imaging characteristics and comparison of ABER view with oblique coronal view at MR arthrography initial results, Imaging findings in the dominant shoulder of throwing athletes: comparison of radiography, arthrography, CT arthrography, and MR arthrography with arthroscopic correlation, Magnetic resonance imaging evaluation of the rotator cuff tendons in the asymptomatic shoulder, Magnetic resonance imaging of the asymptomatic shoulder of overhead athletes: a 5-year follow-up study, The peel-back mechanism: its role in producing and extending posterior type II SLAP lesions and its effect on SLAP repair rehabilitation, Humeral torsion in the throwing arm of handball players, A comparison of glenoid morphology and glenohumeral range of motion between professional baseball pitchers with and without a history of SLAP repair, An analysis of 140 injuries to the superior glenoid labrum, SLAP lesions: a retrospective multicenter study, The Management of Superior Labrum Anterior-Posterior Tears in the Throwers Shoulder, Pathomechanics and Magnetic Resonance Imaging of the Throwers Shoulder, Diagnosis of superior labral lesions: comparison of noncontrast MRI with indirect MR arthrography in unexercised shoulders, Sensitivity and specificity of noncontrast magnetic resonance imaging reports in the diagnosis of type-II superior labral anterior-posterior lesions in the community setting, SLAP tears: diagnosis using 3-T shoulder MR arthrography with the 3D isotropic turbo spin-echo space sequence versus conventional 2D sequences, Labral injuries: accuracy of detection with unenhanced MR imaging of the shoulder, Noncontrast magnetic resonance imaging of superior labral lesions. Russo A, Zappia M, Reginelli A, Carfora M, D'Agosto GF, La Porta M, Genovese EA, Fonio P. Musculoskelet Surg. You can use Radiopaedia cases in a variety of ways to help you learn and teach. The relationship of anterior instability and rotator cuff impingement, Arthroscopic findings in the overhand throwing athlete: evidence for posterior internal impingement of the rotator cuff, Anterior shoulder instability, impingement, and rotator cuff tear: Anterior and multidirectional glenohumeral instability, MRI of internal impingement of the shoulder, Posterosuperior glenoid internal impingement of the shoulder in the overhead athlete: pathogenesis, clinical features and MR imaging findings, Arthroscopic treatment of partial rotator cuff tears in young athletes. Ankle. Posterior ankle impingement is a condition where an individual experiences pain at the back of the ankle, due to compression of the bone or soft tissue structures during activities that involve maximal ankle plantarflexion motion. . Their clinical records and imaging studies . Posterior ankle impingement is a clinical diagnosis which can be seen following a traumatic hyper-plantar flexion event and may lead to painful symptoms in athletes such as female dancers ('en pointe'), football players, javelin throwers and gymnasts. Please enable it to take advantage of the complete set of features! Most commonly, the structural correlates of impingement relate to post-traumatic synovitis and intra-articular fibrous bands-scar tissue, capsular scarring, or bony prominences. 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