Modified Surgical Treatment of Intermittent Open-Mouth Mandibular Locking in a Cat

Intermittent open-mouth locking related to disorders of the temporomandibular joint are not uncommon. As a result of joint laxity, the mandible shifts to one side. The coronoid process then becomes locked lateral to the zygomatic arch. These patients present with the mouth opened and an inability to close the mouth. This article describes a case of intermittent open-mouth mandibular locking in a cat and a modified surgical treatment combining zygomatic arch and coronoid process reduction.

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Mandibular Coronoid Process Displacement: Signs, Causes, Treatment

Veterinary and Comparative Orthopaedics and Traumatology ◽

10.1055/s-0038-1633143 ◽

1993 ◽

Vol 06 (01) ◽

pp. 29-35 ◽

Cited By ~ 8

Author(s):

R. Koole ◽

G. Voorhout ◽

H. A. W. Hazewinkel

Keyword(s):

Surgical Treatment ◽

Case History ◽

Zygomatic Arch ◽

Coronoid Process ◽

Human Patient ◽

Open Mouth ◽

Temporomandibular Joints ◽

History Of

SummaryOpen-mout h locking due to lateral impingement of the mandibular coronoid process, lateral to the zygomatic arch, is described in five dogs and one cat. In order to elucidate the underlying cause of this abnormality, radiographs of temporomandibular joints of forty dogs, as well as the case history of a human patient, are compared. Three possible aetiologies are given, namely, flattening of the zygomatic arch, aberrant architecture of the condylar aspects, or contracture of the pterygoid muscle. An effective surgical treatment to prevent recur-rence of coronoid impingement was achieved by ostectomy of the locking part of the coronoid process.Unilateral protrusion of the mandible is described as a veterinary and comparative abnormality in five dogs, a cat and a woman. For the impingement of the coronoid process lateral of the zygomatic arch causing open-mouth locking in the animals, three aetiologies and an effective ostectomy of the coronoid process are given.

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Unilateral synostosis of the zygomaticotemporal suture associated with mandibular coronoid process impingement in a dog

Veterinary and Comparative Orthopaedics and Traumatology ◽

10.3415/vcot-12-12-0157 ◽

2013 ◽

Vol 26 (05) ◽

pp. 421-424 ◽

Cited By ~ 2

Author(s):

E. Fraga-Manteiga ◽

T. Schwarz ◽

D. N. Clements ◽

J. M. Ryan

Keyword(s):

Temporomandibular Joint ◽

Closed Reduction ◽

Clinical Signs ◽

Coronoid Process ◽

Open Mouth ◽

Computed Tomographic

SummaryA 13-month-old dog was investigated for the complaint of open-mouth locked jaw. There were not any previous episodes of trauma witnessed. Computed tomographic evaluation revealed unilateral zygomaticotemporal synostosis and associated craniofacial asymmetry, with impingement of the mandibular coronoid process resulting in unilateral temporomandibular joint subluxation. Closed reduction of the subluxation was not maintained. Partial zygomaticotemporal suturectomy resulted in resolution of the clinical signs. To the author's knowledge, isolated zygomaticotemporal synostosis with associated temporomandibular subluxation has not been reported in the dog.

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Development of temporomandibular ankylosis after diagnosis of Jacob’s disease: clinical and tomographic assessment

ARCHIVES OF HEALTH INVESTIGATION ◽

10.21270/archi.v9i5.4778 ◽

2020 ◽

Vol 9 (5) ◽

pp. 426-428

Author(s):

Rafael Linard Avelar ◽

Roque Soares Martins Neto ◽

Bruno da Silva Gaspar ◽

Raimundo Antonio de Lima Praxedes Neto ◽

Paulo Paulo Goberlânio Barros Silva

Keyword(s):

Literature Review ◽

Temporomandibular Joint ◽

Delayed Diagnosis ◽

Mouth Opening ◽

Rare Condition ◽

Temporomandibular Joint Disorders ◽

Zygomatic Arch ◽

Coronoid Process ◽

Limited Mouth Opening ◽

Joint Formation

Jacob's disease is a rare condition that consists of the formation of a pseudo joint structure between the mandibular coronoid process and the zygomatic bone, resulting in limited mouth opening. The disease is difficult to diagnose and etiology is uncertain. This article describes a clinical case of a 6-year-old child with limited mouth opening, which resulted in the formation of a temporomandibular ankylosis leading to complete immobility due to delayed diagnosis and treatment of the disease. A review of this pathology and the most precise imaging exams are discussed for the early and differential diagnosis of the disease. Descriptors: Ankylosis; Temporomandibular Joint; Temporomandibular Joint Disorders. Referências Wang WH, Xu B, Zhang BJ, Lou HQ. Temporomandibular joint ankylosis contributing to coronoid process hyperplasia. Int J Oral Maxillofac Surg. 2016;45(10):1229-33. Zhong SC, Xu ZJ, Zhang ZG, Zheng YH, Li TX, Su K. Bilateral coronoid hyperplasia (Jacob disease on right and elongation on left): report of a case and literature review. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009 Mar;107(3):e64-7. Coll-Anglada M, Acero-Sanz J, Vila-Masana I, Navarro-Cuéllar C, Ochandiano-Caycoia S, López de-Atalaya J, Navarro-Vila C. Jacob's disease secondary to coronoid process osteochondroma. A case report. Med Oral Patol Oral Cir Bucal. 2011;16(6):e708-10. Yesildag A, Yariktas M, Doner F, Aydin G, Munduz M, Topal U. Osteochondroma of the coronoid process and joint formation with zygomatic arch (jacob disease): report of a case. Eur J Dent. 2010;4(1):91-4. Çorumlu U, Kopuz C, Demir MT, Pirzirenli ME. Bilateral elongated mandibular coronoid process in an Anatolian skull. Anat Cell Biol. 2016;49(3):217-20. Choi JG, Kim SY, Perez-Atayde AR, Padwa BL. Bilateral coronoid process hyperplasia with pseudocartilaginous joint formation: Jacob disease. J Oral Maxillofac Surg. 2013;71(2):316–21. Losa-Muñoz PM, Burgueño-García M, González-Martín-Moro J, Sánchez-Burgos R. Osteochondroma of coronoid process: a rare etiology of jacob disease. Craniomaxillofac Trauma Reconstr. 2014;7(4):306-9. Escuder i de la Torre O, Vert Klok E, Marí i Roig A, Mommaerts MY, Pericot i Ayats J. Jacob's disease: report of two cases and review of the literature. J Craniomaxillofac Surg. 2001;29(6):372-76. Hernández-Alfaro F, Escuder O, Marco V. Joint formation between an osteochondroma of the coronoid process and the zygomatic arch (Jacob disease): report of case and review of literature. J Oral Maxillofac Surg. 2000;58(2):227-32. Sreeramaneni SK, Chakravarthi PS, Krishna Prasad L, Raja Satish P, Beeram RK. Jacob's disease: report of a rare case and literature review. Int J Oral Maxillofac Surg. 2011;40(7):753-57. D'Ambrosio N, Kellman RM, Karimi S. Osteochondroma of the coronoid process (Jacob's disease): an unusual cause of restricted jaw motion. Am J Otolaryngol. 2011;32(1):52-4. Shackelford RT, Brown WH. Restricted jaw motion due to osteochondroma of the coronoid process. J Bone Joint Surg Am. 1949;31A(1):107-14.

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Intermittent Open Mouth Locking in a Persian Cat

Veterinary and Comparative Orthopaedics and Traumatology ◽

10.1055/s-0038-1633236 ◽

1990 ◽

Vol 3 (03) ◽

pp. 97-99 ◽

Cited By ~ 7

Author(s):

D. D. Lewis ◽

R. D. Pechman ◽

M. G. Oakes

Keyword(s):

Zygomatic Arch ◽

Coronoid Process ◽

Open Mouth

Intermittent open mouth locking occurred in a Persian cat as the result of impingement of the left coronoid process of the mandible on the ipsilateral zygomatic arch. The condition was treated successfully by partial zygomatic arch ostectomy.

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The Infratemporal Fossa Approach Type D for the Surgical Treatment of Severe Ankylosis of the Temporomandibular Joint

Skull Base ◽

10.1055/s-2005-916517 ◽

2005 ◽

Vol 15 (S 2) ◽

Author(s):

Thomas Linder ◽

J. Kuttenberger ◽

N. Hardt

Keyword(s):

Surgical Treatment ◽

Temporomandibular Joint ◽

Infratemporal Fossa ◽

Type D

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Reconstruction of the Adult Hemifacial Microsomia Patient with Temporomandibular Joint Total Joint Prosthesis and Orthognathic Surgery

Case Reports in Surgery ◽

10.1155/2018/2968983 ◽

2018 ◽

Vol 2018 ◽

pp. 1-6 ◽

Cited By ~ 1

Author(s):

Piero Cascone ◽

Valentino Vellone ◽

Valerio Ramieri ◽

Emanuela Basile ◽

Achille Tarsitano ◽

...

Keyword(s):

Surgical Treatment ◽

Temporomandibular Joint ◽

Distraction Osteogenesis ◽

Orthognathic Surgery ◽

Joint Prosthesis ◽

Hemifacial Microsomia ◽

Primary Methods ◽

Jaw Reconstruction ◽

The Right ◽

Reconstructive Techniques

Background. HFM patients’ reconstruction has always been a challenge for maxillofacial surgeons, and numerous reconstructive techniques have been described. Surgical treatment depends on the patient’s age and contemplates Temporomandibular Joint (TMJ) reconstruction in conjunction with orthognathic surgery, usually necessary following completion of growth to maximize the functional and esthetic results. Distraction osteogenesis had gained popularity as valid alternative in growing patients, but the two primary methods to reconstruct the TMJs involve the use of autogenous, using free or microvascular bone grafts, or alloplastic graft, but there is no widely accepted method. Methods. The increasing use of temporomandibular prosthesis for temporomandibular problems has led us to use them even in HFM. A case of female nongrowing patients with HFM type IIb treated with temporomandibular prosthesis in an all-in-one protocol is presented. Results. Incisal opening, measured with BioPAK system (Bioresearch Inc., Milwaukee, USA), was 21.4 mm in the presurgical period and 32.2 mm after all-in-one procedure, for an increase of 50.5%. Excursive movement to the right side was 2.2 mm in the presurgical period and was 1.5 mm after surgery, for a decrease of 31.8%. Left excursion movement changed from 5 mm to 6.1 mm, for an increase of 22.0%. Conclusions. The TMJ Concepts patient-fitted TJP in conjunction with orthognathic surgery for TMJ and jaw reconstruction is a valid option for patients with HFM.

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