{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T06:05:32Z","timestamp":1768457132798,"version":"3.49.0"},"reference-count":12,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"11","license":[{"start":{"date-parts":[[2014,1,1]],"date-time":"2014-01-01T00:00:00Z","timestamp":1388534400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2014,9,10]],"date-time":"2014-09-10T00:00:00Z","timestamp":1410307200000},"content-version":"vor","delay-in-days":252,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/3.0\/"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2014,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>INTRODUCTION:<\/jats:title>\n                    <jats:p>Myositis ossificans (MO) is characterized as heterotopic bone formation within muscle. MO rarely occurs in the head and neck region. Excision of the heterotopic bone is the standard treatment. This report summarizes a case of a 12-year old female with MO involving the lateral pterygoid muscle. The heterotopic bone was excised using an intraoral incision. Despite intensive physical therapy, the operation failed as evidenced by new bone formation in the area within three weeks of the operation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>PRESENTATION OF CASE:<\/jats:title>\n                    <jats:p>A twelve years old female patient presenting with mouth opening of 10 mm, no facial asymmetry, and no jaw joint pain or other symptoms. Computer tomography (CT) exam was requested and revealed calcification of the left lateral pterygoid muscle. No other masticatory or head muscles showed any signs of calcification. The calcified muscle was completely removed beyond the ossified segment and a 35 mm mouth opening was achieved immediately after the procedure. One month after total bone structure removal (first surgery) the patient could not open her mouth anymore due to a significant calcified mass.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>DISCUSSION:<\/jats:title>\n                    <jats:p>The surgical technique used in this case avoided invasive gap arthroplasty to access lateral pterygoid muscle and anaesthetic scarring formation, by using an intraorally incision accessing the muscle directly.<\/jats:p>\n                    <jats:p>The authors of these study did not see any relation with the condylar dislocation that the patient had five years prior to the pathology, and they could not find any real cause for the myositis ossificans of lateral pterygoid muscle.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSION:<\/jats:title>\n                    <jats:p>The outcome of the surgical procedure was not successful, perhaps due to the expression of the disease, indicating the need to further physiologic and genetic studies to elucidate the aetiology of MO as well as to provide directions to an adequate treatment choice for such cases.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.ijscr.2014.09.008","type":"journal-article","created":{"date-parts":[[2014,9,16]],"date-time":"2014-09-16T11:27:39Z","timestamp":1410866859000},"page":"796-799","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":8,"title":["Operative management of idiophatic myositis ossificans of lateral pterygoid muscle"],"prefix":"10.1097","volume":"5","author":[{"given":"Luis Eduardo","family":"Almeida","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrea","family":"Doetzer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Flavio","family":"Camejo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jose","family":"Bosio","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"276","reference":[{"key":"R2-6-20260114","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1016\/0030-4220(92)90149-K","article-title":"Myositis ossificans of medial pterygoid muscle","volume":"73","author":"Parkash","year":"1992","journal-title":"Oral Surg Oral Med Oral Pathol Oral Radiol Endod"},{"key":"R3-6-20260114","doi-asserted-by":"crossref","first-page":"451","DOI":"10.1016\/S0278-2391(99)90289-6","article-title":"Myositis ossificans traumatica of the medial pterygoid muscle","volume":"57","author":"Takahashi","year":"1999","journal-title":"J Oral Maxillofac Surg"},{"key":"R4-6-20260114","doi-asserted-by":"crossref","first-page":"1518","DOI":"10.1016\/j.joms.2007.05.020","article-title":"Use of buccal pad of fat to prevent heterotopic bone formation after excision of myositis ossificans of medial pterygoid muscle","volume":"66","author":"Rattan","year":"2008","journal-title":"J Oral Maxillofac Surg"},{"key":"R5-6-20260114","doi-asserted-by":"crossref","first-page":"1178","DOI":"10.1016\/S0278-2391(98)90767-4","article-title":"Chronic, progressive limitation of mouth opening","volume":"56","author":"Spinazze","year":"1998","journal-title":"J Oral Maxillofac Surg"},{"key":"R6-6-20260114","doi-asserted-by":"crossref","first-page":"199","DOI":"10.1007\/s004050050139","article-title":"Myositis ossificans in the neck","volume":"256","author":"Sarac","year":"1999","journal-title":"Eur Arch Otorhinolaryngol"},{"key":"R7-6-20260114","doi-asserted-by":"crossref","first-page":"1072","DOI":"10.1053\/joms.2002.34424","article-title":"Myositis ossificans traumatic of the masticatory musculature: a case report and literature review","volume":"60","author":"Kim","year":"2002","journal-title":"J Oral Maxillofac Surg"},{"key":"R8-6-20260114","first-page":"54","article-title":"Traumatic myositis ossificans of lateral pterygoid muscle","volume":"39","author":"Abdin","year":"1984","journal-title":"J Oral Med"},{"key":"R10-6-20260114","doi-asserted-by":"crossref","first-page":"444","DOI":"10.1016\/j.gene.2012.12.005","article-title":"ACVR1 gene mutations in four Turkish patients diagnosed as fibrodysplasia ossificans progressiva","volume":"515","author":"Eresen Yaz\u0131c\u0131o\u011flu","year":"2013","journal-title":"Gene"},{"key":"R11-6-20260114","doi-asserted-by":"crossref","first-page":"592","DOI":"10.1001\/archsurg.1924.01120050133007","article-title":"Multiple bilateral parosteal bone and callus formations of the femur and left innominate bone","volume":"8","author":"Carey","year":"1924","journal-title":"Arch Surg"},{"key":"R12-6-20260114","first-page":"201","article-title":"Myositis ossificans, circumscripta and progressiva, with surgical correction of the masseter muscle: report of two cases","volume":"27","author":"Trester","year":"1969","journal-title":"J Oral Surg"},{"key":"R13-6-20260114","doi-asserted-by":"crossref","first-page":"261","DOI":"10.1016\/j.tripleo.2004.02.058","article-title":"Clinicopathologic conference: trismus following dental treatment","volume":"98","author":"St.-Hilare","year":"2004","journal-title":"Oral Surg Oral Med"},{"key":"R14-6-20260114","doi-asserted-by":"crossref","first-page":"1083","DOI":"10.1053\/joms.2002.34427","article-title":"Myositis ossificans traumatica of the masticatory muscles: review of the literature and report of a case","volume":"60","author":"Aoki","year":"2002","journal-title":"J Oral Maxillofac 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