K W Bütow

University of Pretoria, Pretoria, Gauteng, South Africa

Are you K W Bütow?

Claim your profile

Publications (17)27.93 Total impact

  • K W Bütow · Jan G. Duvenage ·
    [Show abstract] [Hide abstract]
    ABSTRACT: Implanto-orthognathic reconstructive surgery (IORS) entails a combination of three different types of surgical involvement for the reconstruction of the atrophic mandibular or maxillary alveolar ridge. The surgery combines an orthognathic procedure with interpositional bone grafts and placement of osseointegrated implants by means of a transmucoperiosteal technique. The above-mentioned modified orthognathic technique includes three maxillary and two mandibular procedures. The osseointegrated compression screw implant (OCSI) is particularly suitable for this type of implanto-orthognathic reconstructive surgery as it may be placed transmucoperiosteally during this pre-prosthodontic reconstructive technique, thereby eliminating a second stage intervention.
    Journal of Cranio-Maxillofacial Surgery 01/1994; 21(8):326-34; discussion 335. DOI:10.1016/S1010-5182(05)80491-3 · 2.93 Impact Factor
  • K W Bütow · Fred J. Jacobs ·
    [Show abstract] [Hide abstract]
    ABSTRACT: The patient is often left with an oro-nasal fistula after the intravelar veloplasty procedure for the primary closure of the hard and soft palate cleft. The junction between the hard and soft palate is submitted to maximal tension during this procedure and is where the fistula most often occurs. The primary intravelar veloplasty procedure is discussed and 7 surgical modifications are introduced. The aim of these modifications is the prevention of an oro-nasal fistula and each is specifically adapted according to the existing anatomical form and defect of the cleft palate. The surgical modifications are divided into 2 main groups: those based on localised swivel flaps and those based on distant flaps.
    International Journal of Oral and Maxillofacial Surgery 11/1991; 20(5):296-300. DOI:10.1016/S0901-5027(05)80159-6 · 1.57 Impact Factor
  • P J Scheepers · K W Bütow · W P Grotepass ·
    [Show abstract] [Hide abstract]
    ABSTRACT: A pharyngostomy is an alternative feeding method for patients with severe facial trauma where prolonged feeding is indicated. Oro- and nasogastric feeding are the other more well-known methods. A special intubation instrument has been developed to facilitate blunt dissection of cervical tissue and placement of the feeding tube. This particular technique and instrument has been used in 11 cases. The main aim and advantage of this technique is that the nasal and oral cavity can be kept clear of tubes which are a source of irritation and discomfort postoperatively in areas of extensive facial trauma.
    The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika 09/1991; 46(8):415-8.
  • [Show abstract] [Hide abstract]
    ABSTRACT: The high incidence of middle ear effusion in cleft lip and/or palate infants and children led to the development of a tension sling for the tensor veli palatini muscle for better Eustachian tube function after intravelar veloplasty.--The surgical technique is outlined in this paper and an audiometric examination was conducted to determine the influence of this surgical modification, performed in the same procedure as the intravelar veloplasty, on the Eustachian tube function. The intra- and intergroup comparisons indicate that this surgical technique has a positive influence on the tube function.
    Journal of Cranio-Maxillofacial Surgery 03/1991; 19(2):71-6. DOI:10.1016/S1010-5182(05)80610-9 · 2.93 Impact Factor
  • K W Bütow · T W de Witt ·
    [Show abstract] [Hide abstract]
    ABSTRACT: The oblique facial cleft may present as a cutaneous and/or an osseous cleft, with or without a cleft lip, and with or without a cleft palate. This particular case was born with complete bilateral cutaneous-osseous oblique facial clefts which extended from the oral cavity to the eye sockets with anophthalmia on the right side. The first surgical intervention included a midline nasal skeleton alignment and bilateral cleft lip and alveolus reconstruction. Urinary Foley catheters were used as facial tissue expanders and inserted adjacent to the oblique facial clefts. The second surgical procedure consisted of a partial pyramidal Le Fort II osteotomy for an inferiorly displaced nasal maxillary skeleton and a rotation and advancement of the cheek as a flap for reconstruction of the palpebral cleft and inner canthus.
    The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika 01/1991; 45(12):507-11.
  • J F Harmse · K W Bütow · A G Visser ·
    [Show abstract] [Hide abstract]
    ABSTRACT: In general, it is not easy to make the correct clinical diagnosis of a specific internal derangement of the arthralgias. The ten types of internal derangements, with desynchronisation between the meniscus and the condyle, may present clinically with localised sounds, such as clicking, grating and grinding, or without any sounds. Computerised tomography is one of the few non-invasive aids used for obtaining a more accurate diagnosis of arthralgia or anatopathological problems of the joint. The sagittal and coronal alignment of the skull and joint in the gantry, the specific highlighting of the meniscus and use of different types of occlusal splints, are all necessary for the accurate diagnosis of an internal derangement. The examination of 118 such joints is presented in this paper.
    The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika 01/1991; 45(12):519-23.
  • Source
    K W Bütow ·
    [Show abstract] [Hide abstract]
    ABSTRACT: The purpose of this study was to create craniofacial growth disturbances via synostoses of sutures of the cranial base, as well as of other various selected sutures of the anterior cranial and posterior facial structures. Twelve sutures, single or in combination, were obliterated by means of autogenous bone transplantation in twenty-five baby baboons (Papio ursinus). The data obtained from the sacrificed animals were qualitatively analyzed. The results indicated that synostosis of any of the selected sutures does lead to craniofacial growth disturbances. Furthermore, no specific synostosed suture could be identified that might cause a specific type of craniofacial dysostosis, although unilateral facial deformities always occurred after unilateral suture synostosis.
    The Cleft palate journal 08/1990; 27(3):241-51; discussion 251-2. DOI:10.1597/1545-1569(1990)027<0241:CGDASB>2.3.CO;2
  • K W Bütow ·
    [Show abstract] [Hide abstract]
    ABSTRACT: A primary unilateral functional lip-plasty has been developed to improve the appearance of the asymmetrical nasal deformity and that of the lip scar in the cleft lip. A triangle is dissected from the lesser segment with the base located at the nasal alar base. The latter is rotated superior-horizontally and positioned at a semicurved release incision which is inferior to the columella. This C-junction of the nostril sill allows an alignment of the nasal structure without a primary rhinoplasty.
    Journal of Cranio-Maxillofacial Surgery 02/1990; 18(1):14-8. DOI:10.1016/S1010-5182(05)80598-0 · 2.93 Impact Factor
  • K W Bütow · T. Wilma de Witt · Fred J. Jacobs ·
    [Show abstract] [Hide abstract]
    ABSTRACT: A bilateral cleft lip and palate case received ornithine-vasopressin intra-operatively in preparation for a vasoconstricted field of the various lip segments prior to the repair of the cleft lip. A cyanotic tinge appeared immediately. This eventually led to total necrosis of the upper lip. Various relevant blood tests were done and a mild thrombocytosis was found. Surgical reconstruction of the upper lip was performed by means of a forked cross-lip flap--the main blood supply coming from the columella--as well as by means of an inferiorly pedicled cheek flap from the para-nasal area.
    Journal of Cranio-Maxillofacial Surgery 03/1989; 17(2):88-91. DOI:10.1016/S1010-5182(89)80051-4 · 2.93 Impact Factor
  • K W Bütow · W G Müller · J J de Mûelenaere ·
    [Show abstract] [Hide abstract]
    ABSTRACT: A number of cephalometric analyses are presently being used in the assessment of dentofacial deformities. These cephalometrics are mostly based on hard tissue assessment alone, although a few methods using soft tissue only or partially hard and partially soft tissues exist. Most of the analyses use angular and linear measurements, although some are based mainly on measurements of relationships. When the various cephalometric analyses are compared, considerable inconsistency comes to light; so much so, that cephalometrics sometimes cannot be considered as a primary diagnostic tool. A combination of two relationship analyses, one based on soft tissue assessment and one based on hard tissue assessment, incorporating the craniofacial complex, is presented to provide a higher degree of diagnostic accuracy. This combination analysis is based on only a few critical hard tissue landmarks of the cranial base that are used for the total assessment of the facial hard, dental, and soft tissues. This has eliminated inappropriate landmarks and lines that existed in each of the original analyses. The cephalophotometric and architectural-structural craniofacial analyses have been adjusted accordingly and renamed the profilocephalometric analysis.
    The International journal of adult orthodontics and orthognathic surgery 02/1989; 4(2):87-104.
  • K W Bütow · P V Jacobsohn · T W de Witt ·
    [Show abstract] [Hide abstract]
    ABSTRACT: Thirteen patients with nasomaxillo-acrodysostosis are described. Some have the facial appearance of this syndrome only, although the others are more severely affected, with skull, eyes, ears, vertebrae and peripheral extremity involvement. The features of the 13 patients were studied and compared with those described in the literature as belonging to 'maxillonasal dysostosis' and 'acrodysostosis'. It seems certain that there is in fact only one syndrome, which differs only in extent of involvement.
    South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde 02/1989; 75(1):5-11. · 1.63 Impact Factor
  • A.J. Ligthelm · K W Bütow · Arno Weber ·
    [Show abstract] [Hide abstract]
    ABSTRACT: A case of silica granuloma in the submasseteric lymph node is presented. Sarcoidosis was excluded, as crystalline particles, with a double-refractile property, were seen in polarized light. The most probable cause was a delayed hypersensitivity reaction to silica from a lipstick cream introduced through a recurring angular cheilitis.
    International Journal of Oral and Maxillofacial Surgery 01/1989; 17(6):352-3. DOI:10.1016/S0901-5027(88)80061-4 · 1.57 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: The extent of the naso-maxillo-acro-dysostosis involvement differs in each case. The three cases presented in this paper all had different orthodontic and surgical treatment approaches according to the individual involvement of the nose, maxillae, mouth and other facial features.
    Journal of Cranio-Maxillofacial Surgery 09/1988; 16(6):266-72. DOI:10.1016/S1010-5182(88)80060-X · 2.93 Impact Factor
  • K W Bütow ·
    [Show abstract] [Hide abstract]
    ABSTRACT: Once specific anthropometric points have been determined more accurately, photometric analysis may now also be made from a cephalogram. The maxillo-zygomatic region, and especially its hypoplastic appearance, may be determined from additional geometrics based on the length of the facial thirds.
    Journal of Cranio-Maxillofacial Surgery 05/1987; 15(2):75-8. DOI:10.1016/S1010-5182(87)80022-7 · 2.93 Impact Factor
  • K W Bütow ·
    [Show abstract] [Hide abstract]
    ABSTRACT: The surgical technique using a single-layer caudally-based septum-vomer flap for cleft palate surgery, especially for unilateral cleft lip and palate cases, is described and introduced in this paper. The advantages and disadvantages of this primary technique are discussed and compared with other types of vomer-flap closures for the hard palate. Additionally, a lip flap, for anterior nasal floor closure, is introduced for the uninterrupted closure of the cleft of the premaxilla and palate.
    Journal of Cranio-Maxillofacial Surgery 03/1987; 15(1):10-3. DOI:10.1016/S1010-5182(87)80006-9 · 2.93 Impact Factor
  • K W Bütow · J G Duvenage ·
    [Show abstract] [Hide abstract]
    ABSTRACT: A pedicled musculo-mucocutaneous "flap" derived from an original tongue flap is used as one of the layers for the double-layered closure of a recurring oro-nasal fistula. The other layer used for the closure, namely the nasal "flap" layer, originates from the adjacent palatal mucoperiosteum. The oral pedicled "flap" layer and the nasal "flap" layer form the final double-layered flap. This technique gives satisfactory closure of the persistent oro-nasal fistula.
    International Journal of Oral and Maxillofacial Surgery 11/1986; 15(5):581-4. · 1.57 Impact Factor
  • K W Bütow ·
    [Show abstract] [Hide abstract]
    ABSTRACT: A single stage surgical procedure, combining the Le Fort I osteotomy, oro-nasal fistula closure and secondary osteoplasty, for the treatment of adolescents and adults with both an orthognathic deformity and a persistent oro-nasal fistula is described. During the same procedure the cleft alveolar ridge is fused by means of a bone transplantation. This three-in-one surgical procedure is intended for the unilateral cleft lip and palate case.
    British Journal of Oral and Maxillofacial Surgery 07/1986; 24(3):190-7. DOI:10.1016/0266-4356(86)90073-2 · 1.08 Impact Factor