Local resection of the mass to treat the osteochondroma of the mandibular condyle: Indications and different methods with 38‐case series

Chen, Minjie; Chen, Yang; Qiu, Yating; He, Dongmei; Zhou, Qin; Huang, Dong; Shi, Huimin

doi:10.1002/hed.23218

Cited by 25 publications

(13 citation statements)

References 21 publications

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“…Patients with MO of the temporalis or masseter area often undergo a coronoidectomy and the excision of the involved calcified muscles; whereas MO of the pterygoid muscle is more debilitating and, thus, the management of these types of patient is more complicated than that of the patients exhibiting MO of other masticatory muscles. According to the experiences of the present study, the following approaches should be considered: i) Transoral and extraoral approaches, which are often used to provide access to the medial aspect of the mandibular ramus to allow complete excision of the ossified muscle; ii) protection of the internal maxillary artery and inferior alveolar nerves (this is considered to be critical); and iii) using a BFP flap to fill the dead space for preventing hematoma formation and heterotopic bone reformation ( 29 , 30 ). Two types of free fat, abdominal fat and the BFP, have been reported that may serve as interpositional material.…”

Section: Discussionmentioning

confidence: 99%

Post-infectious myositis ossificans in medial, lateral pterygoid muscles: A case report and review of the literature

Jiao

Chen

et al. 2014

Oncology Letters

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Myositis ossificans (MO) is a disease where heterotropic bone forms within a muscle or other type of soft tissue. MO is classified into two groups, MO progressiva and post-traumatic MO. It rarely occurs in the masticatory muscles and thus, only 20 cases involving the masticatory muscles have been reported since 2001. The majority of the reported cases occurred due to trauma, repeated injury or surgical manipulation. However, in a small number of cases, no specific traumatic event was identified as the cause of MO. To the best of our knowledge, this is the first case of post-infectious MO to be reported in the medial and lateral pterygoid muscles.

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Section: Discussionmentioning

confidence: 99%

Post-infectious myositis ossificans in medial, lateral pterygoid muscles: A case report and review of the literature

Jiao

Chen

et al. 2014

Oncology Letters

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“…Therefore, local resection of the mass is a favorable alternative treatment modality, which involved removing the neoplasm and a small portion of the condylar head only and preserving the healthy portion of the condyle. [ 5 – 10 ] In our previous study, we found 68.4% (26/38) cases could obtain a stable occlusion immediately after the local resection. [ 5 ] But in some cases, occlusal discrepancy may still persist for a long time because of imbalance of bilateral muscles.…”

Section: Introductionmentioning

confidence: 98%

“…[ 5 – 10 ] In our previous study, we found 68.4% (26/38) cases could obtain a stable occlusion immediately after the local resection. [ 5 ] But in some cases, occlusal discrepancy may still persist for a long time because of imbalance of bilateral muscles. How to reach a stable occlusion has become an important factor to evaluate the surgical treatment outcomes.…”

Section: Introductionmentioning

confidence: 99%

Occlusal adjustment after local resection of type 1 condylar osteochondroma

Zhao

Fan

et al. 2018

Medicine

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To evaluate the feasibility of the orthodontic traction after local resection of the condylar osteochondroma (OC).From November 2011 to September 2016, consecutive patients with condylar OC who underwent orthodontic extraction after local resection of the mass were reviewed. Clinical data and cone-beam computed tomography (CT) were obtained before treatment (T0), 1 week after surgery (T1), and at least 6-month follow-up after OC resection (T2). Repeated-measures analysis of variance with Bonferroni multiple-comparison test was used to compare the 3-dimensional cephalometric variables at different time points and the paired t test was used to compare changes of temporomandibular joint (TMJ) space between the 2 sides at T1 and T2.The sample consisted of 23 patients (16 females and 7 males). The mean postoperative follow-up interval was 10.9 months. No recurrence was observed during the postoperative follow-up period. Facial symmetry and occlusion were greatly improved. B deviation and the distance of gonion on the OC-affected side to the Frankfort horizontal (FH) were significantly improved from T0 to T1 and T2 (P < .01). The anterior space (AS) and superior space (SS) of the OC-affected side were significantly larger than that of the contralateral side at T1 in parasagittal CT views (P < .05), while no difference was found between the two sides at T2.Local resection is an effective technique with less damage to the condyle. The application of postoperative directional traction could guide the condyle into the fossa, achieve normal TMJ space and stable occlusion, and eventually provide functional and esthetic outcomes.

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“…In another case series reported by Chen et al, [8] on 38 patients diagnosed with OC of the condyle, he found a female predilection, greater involvement of the right side and an average age range of 43.7 years.…”

Section: Discussionmentioning

confidence: 87%

Osteochondroma (OC) of the Condyle of Left Mandible: A Rare Case

Harish

Manjunatha

Kumar

et al. 2015

JCDR

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A 36-year-old male patient presented with complaints of speaking and eating difficulties. He had a history of previous steroid injection to left TMJ a year ago for the management of internal derangement and from that time he slowly developed pain in the left TMJ associated with slight facial asymmetry [Table/ Fig-1]. Patient gave history of steroid injection (single dose) one year back due to lock jaw problem following which he developed pain and facial asymmetry. There was no history of trauma. Medical and family history was not significant. On clinical examination facial asymmetry was present and a localized swelling was present on left TMJ area which was diffuse, tender and hard in consistency. Tenderness elicited on TMJ area on opening and closing mouth and deviation of mandible on right side was present on mouth opening. Inter-incisal mouth opening was 30 mm. Radiographic examination revealed slight erosive lateral surface of left condyle and obliteration of left TMJ space on panoramic radiograph [Table/ Fig-2]. Clinic-radiographic correlation lead to following differential diagnosis: benign bone tumour of left condyle, fibrous ankylosis of left TMJ. As patient was not willing for advanced imaging, surgical exploration of joint was done where thick cartilaginous material was encountered at head of left condyle . Complete surgical excision of lesion was performed. On gross examination the specimen was measuring 1 × 0.5 cm in size, brownish white in color, firm in consistency. Postoperatively patient's mouth opening improved to 37mm.Microscopic examination revealed mono-nucleated, bi-nucleated and multi-nucleated cells having round to oval hyperchromatic nuclei within lacunae, suggestive of chondrocytes dispersed in hyaline ABStRACtOsteochondroma (OC) is one of the most common benign condylar tumours having both chondroma and osteoma. However, this tumour is most frequently found on the metaphyses of long bones and is unusual on the skull. When it affects the mandibular condyle, the cause could be due to trauma to the tempero mandibular joint (TMJ). Here, in this report we present a rare case of osteochondroma of left condyle region in a 36-year-old man. The patient had noticed pain in the left TMJ for six months. The lesion is surgically removed and histologically evaluated which composed of chondrocytes dispersed in hyaline matrix along with a rim of calcified bone at one end.matrix [Table/ Fig-4&5]. Areas of hemorrhage were also evident with minimal peripheral bony area. All these features confirmed the diagnosis of OC. Patient is on regular follow up. DISCUSSIoNThe World Health Organization defines the OC as a "cartilage-capped bony protrusion on the external surface of bone.'' It represents approximately 35% to 50% of all benign bone tumours and 8% to 15% of all primary bone tumours [1]. Though it is one of the most common benign tumours of the condyle, it is most frequently found on long bones and is uncommon on the skull [2]. OC of the mandibular condyle is thought to be a relatively rare lesion and o...

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Local resection of the mass to treat the osteochondroma of the mandibular condyle: Indications and different methods with 38‐case series

Abstract: Local resection of the mass was a more conservative procedure to treat the solitary osteochondroma with a stalk.

Cited by 25 publications

References 21 publications

Post-infectious myositis ossificans in medial, lateral pterygoid muscles: A case report and review of the literature

Post-infectious myositis ossificans in medial, lateral pterygoid muscles: A case report and review of the literature

Occlusal adjustment after local resection of type 1 condylar osteochondroma

Osteochondroma (OC) of the Condyle of Left Mandible: A Rare Case

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