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Biomedical subjects

D Labbé

Publications and source records attributed to D Labbé.

At least 37 records · Page 2Linked to original sources
PubMed2002

[Contribution of the semi-free radial forearm flap for head and neck reconstruction].

Flap failure is mostly caused by venous thrombosis of the anastomosis. The failure rate is higher in post-irradiated neck. To reduce the risk of venous thrombosis, the authors propose to harvest the radial forearm flap using the cephalic vein as the drainage vein and as a pedicle. Only a single arterial anastomosis is carried out. This technique has been described already in patients who underwent head and neck ablative surgery with radical neck dissection. The authors report 2 cases in patients with post-irradiated neck. The flap transfers were successful in the 2 cases. The operative time of harvesting this hybrid version is the same with the conventional free flap technique. This version of the radial forearm flap can be a method of choice for some complex microvascular reconstruction in the head and neck region.

Aged↗
PubMed2002

[Lengthening temporalis myoplasty].

Use of the temporal muscle to raise the lips is a very old technique. In 1934, Gillies folded the temporal muscle over the zygoma to the lip subcutaneously. In 1952, MacLaughlin proposed to attach the temporal muscle tendon to the lips. With this aponeurotic relay there is a risk of lengthening and necrosis, the main cause of long-term failure. Taking inspiration from Maclaughlin, lengthening myoplasty lowers the temporal muscle as a whole descending the tendon to the lip, thus obtaining lengthening from the posterior part.

Adult↗
PubMed2002

[The three-dimensional spiral scanner and volume rendering technique: importance in craniofacial traumatology and reconstructive surgery].

There are two reconstruction methods for 3D imaging with a helical scanner: a surface rendering process providing a 3D-SSD (Surface Shaded Display) image that looks like a plaster cast skull and 3D-VRD (Volume Rendering Technique) which is more precise and gives 3D images similar to radiographs. We review briefly the techniques used to acquire these images and present 3D volume-rendering scanners, pointing out its usefulness in craniomaxillofacial traumatology and reconstructive surgery.

Adolescent↗
PubMed2002

[Cysts from the first branchial cleft. Apropos of a case ].

We describe a case of branchial cyst from the first branchial cleft in an 8-year-old patient, emphasizing the diagnostic difficulties of this type of lesion and the clinical aspects as well as the details of surgical treatment. The embryogenic origin and the anatomic relation with the facial nerve is recalled. Surgical treatment is indicated.

Branchioma↗
PubMed2001

[Distraction osteogenesis for the premaxillary reconstruction. Report of 3 cases].

Reconstructing the premaxillary is well-known for being difficult and usually requires a bone implant, in grafts or flaps. This technique has a high morbidity rate and its middle or long term results remain uncertain. Thanks to their experience and to the results they achieved in mandible and maxillary osteogenic distraction, the authors suggest applying the principle of distraction osteogenesis to the premaxillary reconstruction. Three patients have been treated: first, two hypoplasias of the premaxillary, sequelae of a cleft palate and of a former traumatic loss of teeth; secondly one premaxillary defect following a gunshot wound. The first two were women, the other one was man, all adults. For premaxillary distraction, an intraoral extramucosa device is made-up for each individual case before the surgical operation itself and after an orthognathic analysis. The surgical operation consists in a classical segmental maxillary osteotomy which respects the palatal periosteum, and also in fitting a distractor device with transmucosa screws into the palatal bone. In each of the three cases, with a follow-up from 24 to four months, the reconstruction of the premaxillary by distraction osteogenesis is considered satisfactory and stable as regards both bone and soft tissues. This achieves particularly a very good expansion of the fibrous mucosa of the palate which makes it possible to re-insert false teeth, with or without implants into the bone. The principle of distraction osteogenesis applied to premaxillary reconstruction has shown, in our cases, very good functional and aesthetic results. Yet the techniques we used are simple and have a low morbidity rate; secondly the distraction device is easy to design and little expansive.

Adult↗
PubMed2001

[Mandibular distraction osteogenesis and dental rehabilitation by osseointegrated implants. A case report] ].

The authors report a case of mandibular reconstruction by distraction osteogenesis. The patient presented an interrupting mandibular defect secondary to a gunshot injury. The distraction osteogenesis permitted the reconstruction of the mandible without bone grafts or flaps. The attached gingiva on the alveolar ridge was also recreated by the distraction and allowed a dental rehabilitation by osseointegrated implants.

Humans↗
PubMed2001

[Facial paralysis in oto-mandibular dysplasia. Clinical study and therapeutic implications].

The percentage of facial palsy in the otomandibular dysostosis is great. It varies from 12 to 50% in the literature. The OMENS classification embodies the muscular and facial nerve defects, and appears to represent the most inclusive classification. Few literature reviews have proposed a treatment of the facial palsy in the otomandibularis dysostosis. The authors proposed a treatment protocol depending on the patient's age. The patients before one year of age are treated with the Iñigo's technique, which provide reinnervation to the affected muscles through a crossed facial nerve graft. After one-year old, the surgical approach is realised at five to seven years old to permit a physical therapy. The upper lip is reanimated by the lengthening temporalis myoplasty or by free muscle transplantation with nerve graft. The orbital area treatment of the paralyzed side can included a lengthening of the upper eyelid levator muscle, an asymmetric lateral tarsorraphy and a chondromucous graft.

Ear, External↗
PubMed2001

[Anatomical study of the temporalis tendon. Value in temporalis lengthening myoplasty].

The lengthening temporalis myoplasty is indicated in long standing and congenital facial paralysis. Its principle is the transfer of the coronoid tendinous insertions onto the lip and the nasolabial fold. The knowledge of the anatomy of this strong and wide tendon is necessary to use successfully their anatomical advantages. A study of ten cadavers (20 temporalis muscles) confirmed the surgical anatomy found during lengthening temporalis myoplasty procedure: the strong tendon, when liberated from the coronoid process, is from 4 to 6 cm long.

Cadaver↗
PubMed2001

[Extra-oral implants: indications and contraindications].

Osseointegrated facial prostheses are an interesting solution for maxillofacial rehabilitation when reconstructive surgery cannot be proposed. Progress in epithesis materials and in implantation techniques have renewed interest in maxillofacial prostheses. The best indications are for rehabilitation of nasal, auricular and orbitopalpebral defects. Another indication is complex loss of facial tissue. Endo-osseous epitheses are recommended mainly when there is no possibility of reasonable and satisfactory surgical reconstruction, when local carcinologic prognosis is uncertain, and to respond to the patient's demands. We detail here the precautions necessary when irradiation has been performed previously and finally present the contraindications against epitheses on osseointegrated implants.

Biocompatible Materials↗
PubMed2001

[Extra-oral implants and irradiation: current trends].

Recommended treatment for head and neck cancer associates surgery and radiotherapy. Indication for bone-anchored epitheses in irradiated patients is also a common situation. The outcome of the implant appears to be improved with a special protocol for hyperbaric oxygen therapy, antibiotic therapy and calcitherapy. The problem of radiotherapy in patients with titanium osseointegrated implants is also discussed.

Anti-Bacterial Agents↗
PubMed2001

[From the concept of permanent percutaneous connections to that of permanent percutaneous electrical connections].

Percutaneous abutment of an extra-oral implant provides two main functions: support of bone anchored hearing aid (BAHA) and fixing maxillofacial prosthesis (MFP). Further developing this concept, and using available surgical strategies and materials, leads to a new application in extra-oral implantology. We analyzed the evolution of concepts in the field of permanent percutaneous connection (PPC) to the new concept of PPEC (permanent percutaneous electric connection), presenting a clinical case.

Biocompatible Materials↗
PubMed2000

[The use of an alcohol gel of ethyl cellulose in the treatment of venous malformations].

Absolute alcohol is the most effective treatment of venous malformations. We created an alcoholic sclerosing solution less diffusible and we report a preliminary study on 6 patients. The viscosity of the alcohol was enhanced with ethylcellulose and we treated 7 patients with VM. Two benign skin ulcerations were observed and one patient with a large VM of the face could be treated around the eyes in a dangerous area. The results are encouraging and a larger study is being performed.

Cellulose↗
PubMed2000

Lengthening temporalis myoplasty and lip reanimation.

The authors report a new surgical technique of myoplasty of the temporalis muscle applied to the treatment of permanent peripheral facial paralysis. It consists of a muscle lengthening, using the totality of the temporalis muscle and the transfer of its tendon attached to the coronoid process directly to the lips, therefore modifying the temporal fixed point and respecting the deep temporal pedicles. Ten cadaver dissections were performed for a better understanding of the muscle fiber redistribution during surgery to measure the distance between coronoid process and lip commissure and to measure the width of the temporal tendon. The results in 10 patients have been very encouraging. This technique was performed on ten cases of permanent facial paralysis of various etiologies, by the same surgeon, with a 4-year follow-up.

Adolescent↗
PubMed2000

[Homage to Leon Tripier. Description of the first musculocutaneous flap and current indications].

The double pedicle flap taken from the upper lid was described for the first time in 1888 by Tripier. To our knowledge, it is the first case of reconstruction by a myocutaneous flap described in the literature. Other authors subsequently modified the first description. The same flap taken with a single inner pedicle is now usually employed. For the authors, the Tripier's flap, with a double and permanent pedicle, still has some indications in eyelid reconstruction.

Adult↗
PubMed2000

[Diagnostic difficulties of chondrosarcoma of the jaw. Apropos of a case and review of the literature].

Chondrosarcoma is an uncommon malignant mesenchymal tumor characterized by the production of cartilaginous tissue and the absence of production of bone tissue. Maxillary and mandibular localizations are extremely rare and have a poor prognosis. The clinical and radiographic findings are similar to those seen in other tumors of the jaw, often delaying diagnosis and treatment and subsequently jeopardizing prognosis. In the literature, the mean delay from first clinical signs to diagnosis is about 8 months. As in all tumoral diseases, pathology confirms the diagnosis. We report a case of chondrosarcoma of the maxillary bone and review the literature, focusing on the difficulty in establishing the diagnosis, even at the pathology examination. We propose wide surgical excision, which, in agreement with other reports in the literature, is the only therapeutic possibility. We observed no sign of recurrence at 5-year follow-up. Radiotherapy and chemotherapy may be useful in certain cases.

Adult↗
PubMed1999

[A new application of extraoral implants: the permanent percutaneous electrical connection. Apropos a case].

The principle of EOI is an implant fixed to the bone supporting a percutaneous abutment. Placed through the skin, the abutment allows a permanent communication between inside and outside of the organism. A rigorous very precise surgical protocol has allowed good results of the technique for over 20 years and shown the reliability of this two-piece device. This surgical protocol and device concept have been used by the authors to design a percutaneous electrical connector experimented in a rabbit model since 1996. A percutaneous electrical connector called PEP (percutaneous electrical plug) directly steming from the Sweden and German extra oral implants as been design for human applications. Authors describe the surgical placement and loading of there first PEP, under Huriet law, in an otologic application: the treatment of sever, drug-resistant tinnitus by electrical stimulation of the internal ear. The anatomical implantation area of these new extra-oral implants is retro-auricular. So the implants placements should be realized by ENT and maxillo-facial surgeons.

Animals↗