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Single Step Simultaneous Bijaw Surgery and Alveolar Bone Grafting in an Adult with Cleft Lip and Palate: A Case Report

 

Agarwal SS1*, Karan Nehra2, Jayan B2, Sahoo NK3, Mohit Sharma4 and Prasanna Kumar4

1Department of Orthodontics, Indian Army Dental Corps, India

2Department of Orthodontics, Army Dental Centre R&R, New Delhi, India

3Department of Oral & Maxillofacial Surgery, Indian Army Dental Corps, India

4Department of Orthodontics, Armed Forces Medical College, Pune, India

Corresponding Author:
Agarwal SS, MDS
Department of Orthodontics
Indian Army Dental Corps, India
E-mail: [email protected]

Received Date: April 23, 2015; Accepted Date: June 07, 2016; Published Date: June 13, 2016

Citation: Agarwal SS, Nehra K, Jayan B, Sahoo NK, Sharma M, et al., (2016) Single Step Simultaneous Bijaw Surgery and Alveolar Bone Grafting in an Adult with Cleft Lip and Palate: A Case Report. Cosmetol & Oro Facial Surg 2:107. doi:10.4172/jcofs.1000107

Copyright: © 2016 Agarwal SS, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Abstract

Cleft lip and palate (CLP) is one of the most common congenital anomaly affecting the oro-facial region. Growth and development is variously affected in such patients which in turn affect the social and psychological maturation of the individual along with its negative impact on facial aesthetics. Numerous multi-centric studies have been conducted world-wide to establish a specific treatment protocol for the management of CLP cases to achieve ideal results. But the situation, especially in developing countries is still alarming and it is not uncommon to encounter untreated/partially treated adult CLP patients in our clinical practice. The aim of this case report is to highlight interdisciplinary management of such an adult case of unilateral cleft lip and palate (GOSLON 5) along with moderate velopharyngeal incompetency (alveolar grafting was never attempted) by single step simultaneous bijaw surgery and alveolar bone grafting.

Keywords

Bijaw surgery in cleft patients; Alveolar bone grafting in adult cleft cases; GOSLON 5

Introduction

Oro-facial region is variously affected by syndromes and craniofacial clefts which occur due to non-fusion of embryonic processes during intra-uterine stages of development. Cleft Lip and/or Palate (CL ± P) are one of them and are the second most common congenital anomaly affecting humans [1]. The incidence of (CL ± P) worldwide is 1 in 600 live births and its prevalence is 9.92 per 10,000. The prevalence of CL alone is 3.28 per 10,000 and that of CLP 6.64 per 10,000 [2]. In India, about 28,600 children are born with CL ± P every year which amount of about 3 infants born every hour with this deformity [3]. In United States, its incidence is approximately 1/700 live births [4].

Craniofacial growth and development is very important for social and psychological maturation of the individual along with its impact on facial aesthetics. These parameters are adversely affected in CLP patients. Multi-centric studies conducted world-wide in developed countries over past few decades [5,6] have defined specific treatment protocols for the management of CLP patients to achieve ideal results. These studies have been funded by various healthcare agencies as well as various government and non-government organizations. However due to non-availability of cleft lip and palate teams/centres in developing countries, it is not very uncommon to see untreated/partially treated adult patients in these countries.

This article describes an adult case of unilateral cleft lip and palate (left side)-GOSLON 5 [6] with severe maxillo-mandibular dento-skeletal discrepancy (Class III) and moderate velopharyngeal incompetency which was managed ortho-surgically by single step simultaneous bijaw surgery and alveolar bone grafting.

Case Report

History

An 18 years old male reported to the Division of Orthodontics and Dentofacial Orthopedics at Armed Forces Medical College, Pune with chief complaint of forwardly placed lower jaw, irregularly placed teeth and gap in the upper jaw. He was a known case of unilateral CLP (left side), where primary closure of lip and palate was done at 3 and 18 months of age respectively and alveolar grafting was never attempted. He was the second of the two male children from his parents with no history of similar problems in family. The age of the father and mother was 35 and 33 years respectively at the time of his birth. Mother presented with the history of normal pregnancy and delivery.

Clinical examination

The patient presented with a dished-in midface, concave facial profile, acute nasolabial angle, scar mark on left side of upper lip (indicating previous surgery) and facial asymmetry due to nasal tip being deviated towards right side. Overall facial aesthetics of the patient was poor leading to restriction in social activities (Figure 1).

cosmetology-orofacial-surgery-treatment-photographs

Figure 1: Pre treatment photographs.

Speech evaluation done by an Otolaryngologist revealed difficulty in pronouncing words like /p/, /s/ and /f/ along with a moderate velopharyngeal incompetence and hyper-nasality of voice. There was however, no nasal regurgitation of oral fluids.

Intra-oral examination revealed a collapsed maxillary arch with an occult cleft, clinically absent 21 and 22, retained 53, scar mark on the palate indicating previous palatal repair, 14 and 24 placed palatal to 13 and 23 and lateral open bite (3 mm) on left side. Tooth Size Arch Length Discrepancy (TSALD) revealed crowding of 1.5 mm in maxilla and 2 mm in mandible along with a reverse overjet of 11 mm (Figure 1).

Radiographic assessment

Lateral cephalometric analysis revealed Class III skeletal and dentoalveolar pattern along with a retrognatic maxilla and a relatively prognathic mandible (SNA=68°, ANB=-9°, A-Na vertical=-13 mm), retroclined mandibular incisors (LI-NB=17°(3), IMPA=84°) and an acute nasolabial angle (60°) (Figure 2) (Table 1).

cosmetology-orofacial-surgery-Pre-treatment

Figure 2: Pre-treatment Lateral Cephalogram.

Cephalometric Parameter Observed value
SNA 68°
SNB 77°
ANB -9°
UI-NA 28°(5)
LI-NB 17°(3)
GoGn–SN 34°
FMA 27°
IMPA 84°
Co-A 73mm
Co-Gn 127 mm (95-97 mm)
LAFH 69 mm
Pog-Na vert -2 mm
A-Na vert -13 mm
ANSPNS:GoPog 1:1.6 (1:1.5)
Nasolabial angle 60°

Table 1: Pre-treatment cephalometric parameters.

Orthopantomogram (OPG) findings revealed that the patient was in a permanent dentition stage with agenesis of 21, 22 and retained 53. No supernumerary teeth or radiographic evidence of any obvious pathology was evident. Maxillary alveolar defect was seen in the region of 21 and 22 (Figure 3).

cosmetology-orofacial-surgery-Pre-treatment-OPG

Figure 3: Pre-treatment OPG.

Diagnosis

The patient was diagnosed as an operated case of UCLP - left side (GOSLON 5) associated with severe maxillary hypoplasia, collapsed maxillary arch and moderate velopharyngeal incompetence.

Treatment progress

Pre-surgical orthodontics

After therapeutic extraction of 53, 14 and 24, maxillary arch expansion was initiated as a preliminary procedure using Quad helix appliance and expansion was done as per protocol [1]. After the desired expansion was achieved, a fixed arch holding appliance was fabricated in maxilla to prevent relapse and fixed mechanotherapy with 0.022 × 0.028” MBT Pre Adjusted Edgewise Appliance (PEA) was initiated (Figure 4). After leveling and alignment of maxillary and mandibular arch, sequentially the patient was placed on rigid (0.021 × 0.025” Stainless Steel) arch wires. A modified technique [7] was used to stabilize the cleft maxilla pre-surgically using inner bow of face bow and a rigid palatal framework (Figure 5).

cosmetology-orofacial-surgery-Modified-arch-holding

Figure 4: Modified arch-holding appliance in maxillary arch and bonding with 0.022 ×0.028” MBT appliance.

cosmetology-orofacial-surgery-Pre-surgical-photographs

Figure 5: Pre surgical photographs with modified technique for stabilisation of cleft maxilla.

Pre-surgical lateral cephalgram (Figure 6) (Table 2) revealed dentoalveolar decompensation and optimization of maxillary and mandibular dentition (UI-NA=32°(6), LI-NB=21°(3), IMPA=88°). Pre-surgical OPG (Figure 7) confirmed parallel alignment of roots prior to surgery and occlusal radiograph revealed widening of the cleft defect (Figure 8).

cosmetology-orofacial-surgery-Lateral-cephalogram

Figure 6: Pre-Surgical Lateral cephalogram

cosmetology-orofacial-surgery-Pre-surgical-OPG

Figure 7: Pre-surgical OPG.

cosmetology-orofacial-surgery-occlusal-radiograph

Figure 8: Pre-surgical occlusal radiograph.

Cephalometric Parameter Pre-treatment values  Pre-surgical values
SNA 68 ° 68 °
SNB 77 ° 77 °
ANB -9 ° -9 °
UI-NA 28 °(5) 32°(6)
LI-NB 17 °(3) 21°(3)
GoGn –SN 34 ° 34 °
FMA 27 ° 27 °
IMPA 84 ° 88 °
Co-A 73mm 73 mm
Co-Gn 127mm(95-97) 127 mm
LAFH 69mm 69 mm
Pog-Na vert -2mm -2 mm
A-Na Vert -13mm -12 mm
ANS-PNS:GoPog 1:1.6 (1:1.5) 1: 1.86
Nasolabial angle 60 ° 56°

Table 2: Pre-surgical cephalometric parameters.

Pre-surgical prediction tracing (Figure 9) indicated need of a Bijaw surgery with maxillary advancement of 5 mm and mandibular setback of 5 mm to achieve optimum skeletal and dental relationship.

cosmetology-orofacial-surgery-prediction-tracing

Figure 9: Pre-surgical prediction tracing indicating Maxillary advancement–5 mm, Mandibular setback-5 mm.

Face bow transfer (Figure 10) was then carried out to achieve correct orientation of maxilla in relation to the cranial base. The mandible was then aligned in relation to maxilla by occlusal wax bite record at centric occlusion.

cosmetology-orofacial-surgery-Face-bow

Figure 10: Face bow transfer.

The casts were then articulated on a semi-adjustable articulator and subjected to model surgery. Splint fabrication was then done for the planned two stage surgical procedure. Stage 1 (intermediate) splint was fabricated for maxillary advancement using pink acrylic and final splint was fabricated for mandibular setback using white acrylic resin (Figure 11).

cosmetology-orofacial-surgery-Model-surgery

Figure 11: Model surgery, Splint fabrication.

Surgical phase

Under general anaesthesia, Le Fort I osteotomy and maxillary down fracture was done in stage 1 surgery and maxilla was advanced by 5 mm as guided by stage 1 splint and fixed in that position by rigid fixation. In stage 2 surgery, Bilateral Sagittal Split Osteotomy (BSSO) and mandibular setback of 7 mm was performed as guided by stage 2 splint and the mandible was stabilised in that position using rigid fixation (Figure 12).

cosmetology-orofacial-surgery-Le-Fort

Figure 12: Le Fort I osteotomy and maxillary advancement of 5mm and BSSO with mandibular setback of 7 mm.

Cancellous bone from iliac crest was harvested and grafted into the alveolar defect region by raising full thickness mucoperiosteal flaps (Figure 13a). Alar base cinching was done simultaneously to prevent excessive nasal flaring which usually occurs after maxillary advancement surgery (Figure 13b).

cosmetology-orofacial-surgery-Cortical-bone

Figure 13: a-Cortical bone graft; b- Alar base cinching.

Post-surgical phase

The stage 2 splint was cemented on the maxillary dentition with Glass ionomer cement on the third post operative day to guide mandibular movements and it remained in situ for 3 weeks (Figure 14).

cosmetology-orofacial-surgery-Post-Surgery

Figure 14: 3 weeks Post Surgery - splint in situ.

Photographs taken 3 months post operatively shows marked improvement in facial profile and occlusion of the patient (Figure 15).

cosmetology-orofacial-surgery-months-post-surgery

Figure 15: 3 months post surgery.

Settling of occlusion was done after completion of finishing and detailing of occlusion using inter-arch elastics (Figure 16).

cosmetology-orofacial-surgery-Settling-occlusion

Figure 16: Settling of occlusion.

A removable partial denture was fabricated for the patient which simultaneously served two purposes: firstly, it replaced missing teeth and restored gingival aesthetics and secondly, it provided rigid transverse stabilisation of maxilla to prevent its collapse post treatment. It was analysed that there was an inadequate alveolar bone support even after alveolar bone grafting and hence the option of prosthetic rehabilitation with fixed partial denture or implants was ruled out. Also both these rehabilitation modalities would have not provided transverse stabilisation of maxilla warranting the need for a separate arch holding appliance to prevent post treatment relapse (Figure 17).

cosmetology-orofacial-surgery-treatment-Photographs

Figure 17: Post treatment Photographs.

Post treatment lateral cephalogram (Figure 18) (Table 3) revealed optimization of dento-skeletal parameters of the patient as shown by achievement of a positive overjet (ANB=1°), an optimised position of maxilla (SNA=73°, A-Na vertical=-2 mm), mandible (SNB=72°, Pog to Na-vertical=2 mm), dentition (UI-NA=27°(6), LI-NB=21°(3)), nasolabial angle (87°) and achievement of lip competency.

cosmetology-orofacial-surgery-treatment-lateral

Figure 18: Post treatment lateral cephalogram.

Cephalometric  Parameter Pre-treatment  values Post-treatment  values
SNA 68° 73°
SNB 77° 72°
ANB -9°
UI-NA 28°(5) 27°(6)
LI-NB 17°(3) 21°(3)
GoGn –SN 34° 38°
FMA 27° 32°
IMPA 84° 85°
Co-A 73 mm 79 mm
Co-Gn 127 mm 120 mm
LAFH 69 mm 71 mm
Pog-Na vert -2 mm 2 mm
A-Na Vert -13 mm -2 mm
Nasolabial angle 60° 87°

Table 3: Post-treatment cephalometric parameters.

Post treatment OPG revealed achievement of root parallelism and absence of clinically significant root resorption (Figure 19).

cosmetology-orofacial-surgery-Post-treatment-OPG

Figure 19: Post treatment OPG.

Post treatment extra-oral photographs shows marked improvement in facial aesthetics, profile, occlusion and self confidence of the patient without adversely affecting his speech. Bonded fixed spiral wire retainers were placed for retention in the lower arch (Figure 17).

Total treatment duration was 24 months and at the end of treatment we could achieve a marked improvement in self-esteem and confidence of the patient. The patient is on periodic recall and maintenance therapy.

Discussion

The management of CLP patients requires an interdisciplinary approach beginning with pre-natal diagnosis and counselling of parents, management of airway and feeding problems at birth, monitoring the growth and development of the child and possible intervention whenever required [8,9]. CLP cases present with varying levels of difficulty and challenges to the cleft team which include speech and aesthetic problems, mid-face deficiency (sometimes associated with actual or relative mandibular excess as seen in our case), narrow maxilla, malformed or missing (21 and 22 in our case)/supernumerary teeth, varying severity of alveolar defects and oro-antral communications. Aesthetics and speech are often primary complains (as in our case) which may jeopardise the social life of these patients [10,11].

The present case was an adult patient whose treatment was not properly monitored throughout his growth and development and arch expansion and/or alveolar grafting were never attempted [5,6,12]. Arch expansion is an important step in management of transverse discrepancy in CLP patients and is usually done prior to alveolar grafting. In the present case, arch expansion was carried out with Quad helix appliance as per standard protocol (approximate duration=6 months) [1,12]. A 0.022 × 0.028” slot appliance was selected since it permitted use of stiffer wires pre-surgically (0.021 × 0.025 Stainless Steel wires in our case). A modified appliance framework was designed to stabilise and unify maxilla pre-surgically [7]. It served two purposes: firstly, it helped in rigid unification of cleft maxilla and prevented its collapse intra-operatively during Le-fort 1 osteotomy and maxillary down fracture. Secondly, it permitted simultaneous use of intermediate and final splints during two stage surgical procedure, which would not have been possible without this technique [7,13,14]. The present case was in CVMI stage 6 with minimal/no growth left. There was a severe maxillary deficiency along with relative mandibular excess and moderate velopharyngeal incompetency. Maxillary protraction with rigid external distraction device was not feasible (which required about 13-14 mm of maxillary protraction) as this might have worsened the velopharyngeal incompetency and reduced post-treatment stability. The scar tissue from previous palatal surgeries increase chances of post treatment relapse in CLP patients especially in cases of large overjet as in the present case [1,15]. Hence, bijaw surgery was considered as a better alternative since bijaw surgeries provide more stable results and its effects on velopharyngeal incompetency and airway are minimal [1]. A tertiary alveolar grafting with anterior iliac crest bone (cancellous bone) was planned simultaneously during the bijaw surgery as primary and secondary alveolar grafting were never attempted for this patient. The cancellous bone of anterior iliac crest is usually a gold standard because it incorporates and vascularises well in the grafted area; allow tooth eruption through it and also stimulates adjacent undifferentiated cells to differentiate into a healthy attachment apparatus. In the present case, the rigid stabilisation framework was removed 6 weeks postsurgically to provide sufficient immobilisation time to the graft. Success rates are variable in tertiary alveolar grafting and in our case it was a partial failure as insufficient bone was available post-grafting to place an implant [13,14,16,17].

Conclusion

Single step bijaw surgery with tertiary alveolar bone grafting is a viable option in adult untreated/incompletely treated cases with large dento-skeletal discrepancies and velopharyngeal incompetency. Proper case selection and an interdisciplinary team approach is a key factor in successful management of such cases. Long-term follow-up and maintenance of the treatment results is as important as the treatment itself.

References

 

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Review summary

  1. Dr SS Agarwal
    Posted on Oct 01 2016 at 2:50 pm
    Thank you Dheeraj Khatria sir Regards
  2. Dheeraj Khatria
    Posted on Sep 14 2016 at 6:49 pm
    This is a really well written case report of Goslon V CLP which was managed by combined ortho-surgical approach. The article is a significant addition to the existing literature.
 

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