Neonatal Coronoid Hyperplasia: A Report of a Case and Concepts to Promote Early Diagnosis and Treatment

Wallender, Aaron; Ahson, Imran; Steinberg, Bernhard

doi:10.1016/j.joms.2015.03.014

Cited by 6 publications

(6 citation statements)

References 20 publications

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“…Poor compliance for postoperative physiotherapy is associated with increased risk of relapse. Compliance for physiotherapy has a bimodal distribution; patients younger than 2 years old and older than 16 years had better postoperative results 22 . Lefaivre and Aitchison 78 noted that long-term physiotherapy might be the most important variable in longterm postoperative results and advised postponing intervention in children until optimal cooperation is possible.…”

Section: Discussionmentioning

confidence: 99%

“…Quality and characteristics of the included studies 1) Quality assessment of the included studies A quality assessment was performed for each included study. As shown in Table 3 3,[6][7][8][9][10][14][15][16][17][22][23][24][25] , all case reports or case series were verified and assessed for the provided information regarding the study objective. All studies were checked and scored if a case or several cases were fully described or defined with sufficient details to allow the practitioner to make inferences related to their own practice.…”

Section: Selection Of Studiesmentioning

confidence: 99%

“…2) Study characteristics Results on case reports and case series are displayed alphabetically in Table 4 3,6-10, [14][15][16][17][22][23][24][25] .…”

Section: Selection Of Studiesmentioning

confidence: 99%

“…Other syndromes with a common finding of hypotonia can be associated with MCPH. Moebius syndrome is characterized by uni-or bilateral paralysis of the facial mimetic muscles and the lateral rectus muscle of the eye and has been associated with bilateral MCPH 22,23 . Kabuki syndrome and Pena-Shokeir syndrome are also both associated with hypotonia of the mandibular depressors, and it was hypothesized that the absence of mandibular movements and deglutition can result in relative hyperactivity of the temporalis muscle, resulting in reactive enlargement of the coronoid process 24 .…”

mentioning

confidence: 99%

“…Pain or crepitation with mouth opening are present in 7% or 8% of patients, respectively 28 . In the neonatal population, limited mouth opening can result in important sequelae, such as feeding difficulties, risk of malnutrition, and a compromised airway with apnea 22 .…”

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confidence: 99%

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A systematic review of treatment and outcomes in patients with mandibular coronoid process hyperplasia

Parmentier

Nys

Verstraete

et al. 2022

JKAOMS

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The coronoid process is an anatomical part of the mandible that serves as the attachment for the temporalis muscle, buccinator muscle, and the anterior part of the masseter muscle. In classic anatomy, it is described as a sharp triangular-shaped structure in extension of the anterior border of the mandibular ramus. In reality, this structure shows great morphological variety, including hook-shaped type, triangular type, or rounded type. In the study of Lalitha and Sridevi 1 , the majority (73.9%) of mandibles had the same type of coronoid process on both sides, while 26.1% of the cases showed different types on the two sides. Allometric variation can be established in mandibular shape in humans, with taller individuals having superoinferiorly taller rami with more anteriorly-oriented and higher coronoid processes and a corresponding deeper sigmoid notch 2 .Mandibular coronoid process hyperplasia (MCPH) is an uncommon congenital or developmental condition that is characterized by a macroscopic increase in the size of the coronoid process with a normal histologic structure of the bone. MCPH can exist as a uni-or bilateral condition and causes a slow and progressive reduction of mouth opening. Restricted mouth opening results from impingement of the coronoid process on the medial surface of the zygomatic arch [3][4][5] . Unilateral MCPH can involve facial asymmetry with deviation toward the affected side 5 . Langenbeck was the first to report MCPH in 1853, and the first case of restricted mouth opening due to coronoid process enlargement was reported in 1899 by Jacob 3 . Jacob's disease refers to the condition where the coronoid process creates a new joint with the zygomatic process.The pathogenesis of MCPH remains unclear. Several factors might be associated with development of MCPH 6,7 . History of facial trauma and, in particular, zygomatic arch trauma is thought to be a contributing factor in some cases [8][9][10][11]

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Section: Discussionmentioning

confidence: 99%

Section: Selection Of Studiesmentioning

confidence: 99%

“…2) Study characteristics Results on case reports and case series are displayed alphabetically in Table 4 3,6-10, [14][15][16][17][22][23][24][25] .…”

Section: Selection Of Studiesmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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A systematic review of treatment and outcomes in patients with mandibular coronoid process hyperplasia

Parmentier

Nys

Verstraete

et al. 2022

JKAOMS

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Condylar Hyperplasia

2016

Specialty Imaging: Temporomandibular Joint

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Bilateral Coronoid Hyperplasia in a 43-Year-Old Patient Treated With Intraoral Coronoidectomy

Silva

Pereira

Águeda³

et al. 2017

Journal of Craniofacial Surgery

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The mandibular coronoid hyperplasia can be classified as a congenital or development change of the temporomandibular joint. This condition occurs due to a no-neoplasic growth of the coronoid process to the infratemporal fossa. Thus, this part of the bone impacts in the posterior face of the zygomatic bone causing limitation of the mouth opening. The aim of this paper is to report a clinical case of a 43-year-old male with mouth-opening limitation 28 years ago. After clinical and computed tomographic examinations, he was diagnosed with bilateral mandibular coronoid hyperplasia. The treatment proposed was a bilateral coronoidectomy by intraoral approach. In a 1-month postoperative period, the patient reported improvement of the painful complaints and mouth opening. After 1 year, the patient recovered the mouth opening improving his quality of life and there were no more complaints.

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Neonatal Coronoid Hyperplasia: A Report of a Case and Concepts to Promote Early Diagnosis and Treatment

Cited by 6 publications

References 20 publications

A systematic review of treatment and outcomes in patients with mandibular coronoid process hyperplasia

A systematic review of treatment and outcomes in patients with mandibular coronoid process hyperplasia

Condylar Hyperplasia

Bilateral Coronoid Hyperplasia in a 43-Year-Old Patient Treated With Intraoral Coronoidectomy

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