Further refinement and evaluation of intraoral vertical ramus osteotomy

Hall, Hamilton; McKenna, S.J.

doi:10.1016/0278-2391(87)90308-9

Cited by 88 publications

(34 citation statements)

References 5 publications

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“…None of the patients had undergone a prior orthognathic surgery. IVRO was performed according to the surgical technique described by Hall et al (Hall and Mckenna, 1987), and additional surgeries, including genioplasty, were not combined with the procedure. The surgery was considered complete after wired MMF with a splint on the maxillary arch was finished.…”

Section: Patientsmentioning

confidence: 99%

Assessment of skeletal stability of intraoral vertical ramus osteotomy with one-day maxillary–mandibular fixation followed by early jaw exercise

Ohba

Tasaki

Tobita

et al. 2013

Journal of Cranio-Maxillofacial Surgery

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Purpose: Intraoral vertical ramus osteotomy (IVRO) is an effective surgical technique for cases of mandibular setback, and is simpler and has a lower incidence of mentalis paresthesia compared to sagittal split ramus osteotomy (SSRO), another well-known orthognathic surgical technique for the mandible. However, IVRO has a disadvantage in the prolonged duration of postoperative maxilla-mandibular fixation (MMF) required due to the absence of rigid bone fixation. To avoid an extended MMF period, we developed a postoperative management protocol for our IVRO patients, which includes jaw exercises with elastic bands starting on the second day after surgery.Methods: We evaluated the cephalometric skeletal and dental stabilities of 16 IVRO patients as they followed our protocol.Results: The stabilities were confirmed and were similar to those of previous reports.Conclusion: One-day MMF and early initiation of jaw exercise after IVRO did not affect the jaw position stability. Moreover, our findings suggest that starting jaw exercise earlier after IVRO surgery is beneficial, as it allows patients to avoid a long period of rigid MMF so that they can resume their normal daily activities sooner.

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Section: Patientsmentioning

confidence: 99%

Assessment of skeletal stability of intraoral vertical ramus osteotomy with one-day maxillary–mandibular fixation followed by early jaw exercise

Ohba

Tasaki

Tobita

et al. 2013

Journal of Cranio-Maxillofacial Surgery

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“…NSD is also observed with IVRO [28,32]. However, rigid fixation involves more technical difficulty and rotation of the condyle to the lateral side [9,32]. IVSRO on the other hand has flatter, larger contact areas with more optimal medulla-to-cortex healing than the cortex-to-cortex healing in IVRO [5,9].…”

Section: Nsdmentioning

confidence: 94%

“…The percentage of NSD after SSRO ranges from 20%-85% with complete resection in 2%-3.5% of the cases [23][24][25][26][27][28]. Comparatively, IVRO is less likely to cause nerve postsurgical neurosensitivity with a reported incidence range of 8%-36% [29][30][31][32].…”

Section: Nsdmentioning

confidence: 99%

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A Comparative Review of Mandibular Orthognathic Surgeries with a Focus on Intraoral Vertico-sagittal Ramus Osteotomy

He¹,

Iwanaga²,

Adeeb³

et al. 2017

Cureus

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Severe dentofacial deformities require both orthodontics and surgical management to repair. Modern mandibular orthognathic surgery commonly uses sagittal split ramus osteotomy (SSRO) and intraoral vertical ramus osteotomy (IVRO) methods to treat patients. However, complications like neurosensory disturbances and temporomandibular joint disorders are common following both procedures. In 1992, Choung introduced the intraoral vertico-sagittal ramus osteotomy (IVSRO) which led to a decrease in postoperative complications. The 'straight' IVSRO or Choung’s type II osteotomy has a 'condylotomy' effect that reduces iatrogenic temporomandibular joint symptoms and treats preoperative temporomandibular joint symptoms. This osteotomy type is especially applicable for prognathism with excessive flaring of the ramus and with temporomandibular joint dysfunction. The 'L-shaped' IVSRO or Choung’s type I osteotomy is indicated for patients with condylar hyperplasia and high condylar process fractures.

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“…2,7,19,23 However, the results from various reports are difficult to compare because of their wide variations both in follow-up times and in the assessment of nerve function. No objective comparison study regarding inferior alveolar nerve hypoesthesia after SSRO and IVRO was found.…”

mentioning

confidence: 99%

A comparison of postoperative hypoesthesia between two types of sagittal split ramus osteotomy and intraoral vertical ramus osteotomy, using the trigeminal somatosensory-evoked potential method

Takazakura

Ueki

Nakagawa

et al. 2007

International Journal of Oral and Maxillofacial Surgery

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Further refinement and evaluation of intraoral vertical ramus osteotomy

Cited by 88 publications

References 5 publications

Assessment of skeletal stability of intraoral vertical ramus osteotomy with one-day maxillary–mandibular fixation followed by early jaw exercise

Assessment of skeletal stability of intraoral vertical ramus osteotomy with one-day maxillary–mandibular fixation followed by early jaw exercise

A Comparative Review of Mandibular Orthognathic Surgeries with a Focus on Intraoral Vertico-sagittal Ramus Osteotomy

A comparison of postoperative hypoesthesia between two types of sagittal split ramus osteotomy and intraoral vertical ramus osteotomy, using the trigeminal somatosensory-evoked potential method

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