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FIGURE 3-3 Millard rotation-advancement technique for lip
repair. (From Salyer KE. Unilateral cleft lip and cleft lip nasal reconstruction. In
Bardach J, Morris HL [eds]: Multidisciplinary management of cleft lip and palate.
Philadelphia: Saunders, 1990, pp 176-179.)
Most clefts of the lip extend into the nasal base, and the initial repair of the nose is done together with the first lip repair. As stressed earlier, surgeons try to produce the best-looking nose they can. But they also try to minimize the amount of surgical trauma, because the nose is a major growth site for the midface. Aggressive surgery on the nose interferes with its forward growth. Salyer (1986, 1994) demonstrated the aesthetic benefits of careful reconstruction of the nose.
Patients with bilateral clefts of the lip typically have lile to no nasal columella, so the nasal dome appears to be directly aached to the philtrum of the lip. The foreshortening or absence of the columella flaens the nasal alae, thus displacing the alar rims outward. Before the initial lip and nose repair, the structures that should have formed the
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middle section of the lip and alveolus (referred to as the premaxilla) are aached directly to the septum, and the premaxilla is often very protrusive (Fig. 3-4). Various techniques are used to move this segment back into a more desirable position in preparation for surgery, including lip taping, nasoalveolar molding, and the use of an orthodontic plate with a lightweight elastic chain placed over the prolabium (the lip portion of the premaxilla) (Reisberg, 2004). Repair of the lip and nose in bilateral clefts requires minute “architectural” plans for freeing up enough tissue to put the lip together on both sides and to bring the nasal alae inward and upward. Depending on the regimen of the individual surgeon or team, a separate surgical procedure may be performed when the child is approximately 18 months of age to construct or lengthen the columella (Byrd et al., 2008).
Before the 1980s, treatment of the protrusive premaxilla in bilateral clefts included external traction, oral pinning, surgical setback, and even excision (see Reisberg, 2004). All these procedures carried the potential for disastrous results with regard to facial growth.
FIGURE 3-4 The straight vomer bone and very protuberant
premaxilla, with the palatal shelves collapsed medially in an
infant with a complete bilateral cleft.
It is common for a subsequent procedure to be carried out on the lip and nose at approximately 6 years of age to improve appearance, especially if the results of the initial procedure are less than satisfactory.
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This age is chosen because much of the growth of the nose has taken place by the age of 6. A final lip or nose revision is common toward the end of teenage facial growth (16 years for girls, 18 years for boys) (Byrd
et al., 2007). In addition, if the profile is not satisfactory (e.g., if it is
relatively flat and if the upper dental arch is posterior to the lower dental arch [class III malocclusion]), the teenager may undergo maxillary distraction osteogenesis, as discussed in Chapter 6.
Although parents and the surgeon from the treating team may encourage a teenager to have a “definitive” lip/nose revision, teenagers are old enough to insist that they do not want or need another operation.
Outcomes of Initial Lip and Nose Surgery
Poor surgical results on the lip include excessive scar tissue, foreshortening of the lip, and lack of muscular continuity across the lip. In the last case, the lip musculature “bunches up” when the individual aempts to purse the lips because the fibers of the orbicularis oris have not been aligned properly (Fig. 3-5). A straight-line repair, with no aempt to interconnect the muscles, also usually results in a prominent, red-line vertical scar. A step-off in the vermilion border (the term surgeons use when the upper edge of the vermilion border does not match between the left and right sides of the repaired lip) is also a sign of a less than optimal lip repair.
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FIGURE 3-5 When the fibers of the orbicularis oris have not
been properly aligned in the surgical closure of the lip, protruding
the lip may result in an irregular appearance of the upper lip
vermillion and adjacent skin.
When the primary repair of a bilateral cleft lip results in a foreshortened lip, often called a “whistle deformity,” the surgeon may aempt to lengthen the lip by using tissue from the lower lip. In this procedure, known as an Abbe flap, a central portion of the lower lip is partially dissected out of the lip and sutured temporarily to the upper lip. This is a rather complex procedure, because the upper and lower lips are partially sewn together until the flap has gained an adequate blood supply from the upper lip. The flap is fully severed from the lower lip after blood supply is established and it is clear that the flap will survive.
The nose in unilateral and bilateral clefts of the lip lacks normal cartilage support. Also, the alar rim droops to some extent, even if it looks quite good immediately after the initial repair (or immediately after nasoalveolar molding). The appearance can be improved when the child is older and the nose has completed most of its growth.
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In unilateral clefts of the lip and alveolus (with or without a cleft of the palate), the septum deviates toward the affected side. Nasoseptal revisions are common, but again it is best if they are timed so as not to interfere with nasal growth. In bilateral clefts, the vomer bone and septum are usually straight, but both alar rims are flaened until they are properly reconstructed (Fig. 3-6).
FIGURE 3-6 A and B, The initial repair of a complete bilateral
cleft lip in this little boy has resulted in a nice lip, but the alar rims
are flattened. This defect will be corrected when he is a little
older, giving the nose time to grow.
Effects of the Repaired Lip on Speech
Most repaired lips have no effect on speech. Bilateral lip repairs that leave a “whistle-deformity” rarely prevent bilabial closure. Even an overly scarred and stiff upper lip rarely affects speech, because most of the labial movement for speech is provided by the lower lip. A severely foreshortened lip will likely lead to incomplete bilabial closure for /p, b, m/, but the perceptual effect will probably be more visual than auditory.
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Specifics of Palate Surgery
Overview of Palate Repair
Many different techniques are used for surgical closure of the palatal cleft. Here are some basic points about palate surgery, without going into individual operative techniques:
1. The hard and soft palate may be closed in one or two procedures. Most commonly, they are closed in a single operation (Kael et al.,
2009).
2. When the hard palate and soft palate are closed in two operations, the hard palate may be closed first and the soft palate later. Treatment centers that use this approach usually have both parts of the palate closed no later than 18 months of age. Closing the soft palate first and the hard palate several years later is known as primary veloplasty.
3. Most treatment centers leave the alveolar cleft open (unoperated) when the hard palate is initially closed. Closure of the alveolar cleft in infancy (known as primary bone grafting) is unpopular because it inhibits forward growth of the midface and also prevents later orthodontic expansion of the maxilla. In addition, alveolar bone grafting in infancy places the tooth buds in the vicinity of the cleft at risk.
An open alveolar cleft rarely causes a speech problem because the soft tissue of the operated lip prevents the air stream from escaping into the nose. Occasionally, one sees a child in whom the space in the alveolar bone leads to a puffing-out of the lip on /p/ and /b/.
4. Secondary bone grafting to close the alveolar cleft is usually done after orthodontic expansion of the maxilla, when the maxillary and mandibular teeth are in a good occlusal relationship. Autogenous bone (meaning bone generated within the body of the patient, often bone from the upper rim of the hip) is preferred, particularly if further tooth movement in the region of the graft is likely.
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The current version of the Parameters of Care document of the American Cleft Palate Association contains the following statement regarding secondary bone grafting: “The timing of bone grafting of the alveolar cleft should be determined by the stage of dental development. The graft should be placed before the eruption of the permanent maxillary teeth in the region of the cleft, although in late-presenting patients bone grafting may necessarily take place after full eruption of the permanent teeth. The timing of the operative procedure should be determined in collaboration with the orthodontist. Autogenous bone should be used when tooth movement through the graft is anticipated. The occlusion should be stabilized before materials that have potential to impede tooth movement are used.”
Palate repairs are performed in layers. Hard palate repairs are accomplished by moving the nasal mucosa and the periosteum (together called the mucoperiosteum layers) toward the midline (Fig. 3-
7). The surgeon decides whether each layer requires lateral releasing
incisions (just inside the alveolar arch) to facilitate the inward movement of the layers. Multiple surgical techniques are used for hard palate repairs (shown in the illustrative material on the website that accompanies this book). Whether enough oral mucoperiosteum is present to cover the repaired cleft varies from case to case. The width of the cleft and the preferred operative approach of the surgeon determine which procedure is used.
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FIGURE 3-7 Bardach two-flap procedure for the repair of
palatal clefts. (Adapted from Bardach J, Salyer K: Surgical techniques in cleft lip
and palate. Chicago: Year Book Medical Publishers, 1987.)
The soft palate is repaired by moving the nasal mucosa, the muscle fibers of the levator veli palatini, and then the oral mucosa to the midline. The most important part of this process is geing the muscle fibers properly aligned and interdigitated to form a good “sling.” Again, there are several different operative techniques for accomplishing this goal while obtaining adequate length of the velum at the same time. The survey by Kael et al. (2009) indicated a popular preference for the two-flap palatal closure (which closes both the hard and soft palate [Bardach, 1990], Fig. 3-7) and the Furlow Z-plasty (Furlow, 1986, Fig. 3-8).
Several palatal surgery techniques are used in both primary (initial) palatoplasties and secondary procedures when the initial palatoplasty has not provided the desired speech result. Preferred procedures for primary and secondary repairs have historically included the “pushback” (also known as the V-Y pushback). The popularity of this technique seems to have declined over time for two reasons: (1) surgeons questioned whether the palatal length gained during surgery
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was actually sustained following surgery, and (2) clinical research confirmed that the procedure was associated with poorer facial growth results. In addition, because the procedure involved denuding of what had been healthy tissue of the palatal shelves, it led to large accumulations of scar tissue in the middle of the palatal vault. Surgeons now have other techniques available, such as the Furlow Z-plasty, that both lengthen the palate and minimize interference with facial growth
The Furlow Z-plasty and the intravelar veloplasty are also popular for closing the velar portion of a cleft that extends all the way through the hard and soft palate.
FIGURE 3-8 A, Two mirror-image Z-plasties are drawn with the
cleft as their central limbs. B, The oral-side Z-plasty flaps are
elevated with the levator-palatopharyngeus muscle in the
posteriorly based flap. Only mucosa is elevated in the anteriorly
based flap. C, The nasal flaps are elevated with the remaining
muscle in the posteriorly based flap. D and E, Transposing the
two sets of flaps overlaps the palatal muscles and lengthens the
soft palate. (From Furlow LT: Cleft palate repair by double opposing Z-plasty. Plast
Reconstr Surg 78:724-736, 1986.)
For the most part, palate repairs do not involve using tissue from other parts of the body. Two exceptions are (1) bone from the hip or sometimes from a rib that is used in secondary bone grafting of the alveolar cleft and (2) the occasional use of a flap of tongue tissue to repair oronasal fistulas.
Surgical Management of Overt or Covert (Occult) Submucous Clefts
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If a submucous cleft is actually causing VPI, surgical intervention is usually required. Typically this intervention involves creating a beer­functioning levator veli palatini sling. (In submucous clefts, the paired muscles of the levator run forward, alongside each other, instead of interdigitating in the middle of the soft palate.) Often only one surgical procedure is needed. Either a Z-plasty (Furlow, 1986) or an intravelar veloplasty (Kriens, 1969; Marsh et al., 1989) can be done to create a well­functioning soft palate.
Several decades ago, primary pharyngeal flaps (pharyngeal flaps performed as the first procedure) were very popular for the treatment of submucous clefts and other forms of VPI. However, these operations have grown less popular with the advent of effective palatal lengthening techniques and muscular repositioning procedures. Pharyngeal flaps remain, however, as secondary surgical options if the primary muscle reconstruction procedure does not work. Other options include sphincter pharyngoplasties and pharyngeal augmentation procedures, discussed in Chapter 10.
Outcomes of Palatal Surgery
The optimum outcome of palatal surgery is a complete, intact palate with no oronasal fistulas and a velum that is long enough and functionally adequate to accomplish velopharyngeal closure for speech. The goal is normal speech sound production in terms of both articulation and resonance.
Bad outcomes of palatal surgery include oronasal fistulas, a velum that lacks sufficient length or mobility to reach the pharyngeal walls for speech, or a palate repair in which the fragile palatal tissue was so aggressively managed during surgery that the repair dehisces (comes apart). All three of these outcomes result in the perceptual characteristics of VPI in speech, and all three require secondary management, as discussed in Chapter 10.
A surgical outcome of a velum that is just too short is not necessarily the result of poor surgical technique. Quite often, too lile palatal tissue is available to obtain an adequately long (and intact) velum.
How Often Are Palatoplasties Successful?
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