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Biomedical subjects

A Tasanen

Publications and source records attributed to A Tasanen.

At least 19 recordsLinked to original sources
PubMed1988

Adaptation of autogenous costochondral grafts used for temporomandibular joint reconstruction: a long-term clinical and radiologic follow-up.

The clinical and radiologic behavior of autogenous costochondral grafts used for temporomandibular joint (TMJ) reconstruction was studied in 16 patients with a mean follow-up of 10 years. The grafts were classified into four groups according to the degree of radiologic calcification or remodeling (adaptation). Total adaptation was observed in six cases and in two cases, no changes were found. The function of the new joint was excellent irrespective of the radiologic status and seemed to improve with time.

Adaptation, Physiological↗
PubMed1986

A holistic approach to stylalgia.

A follow-up study was performed on 20 patients surgically treated because of stylalgia (Eagle's Syndrome). The aim of the study was to investigate why somatic treatment was often ineffective; furthermore, if there was a psychosomatic background to the complaints. The results of a psychiatric interview in which 11 patients took part clearly showed that most of them were suffering primarily from a psychiatric disorder. The question of stylalgia only as a form of atypical facial pain is discussed.

Adult↗
PubMed1986

Autogenous costochondral grafts in temporo-mandibular joint arthroplasty. A survey of 66 arthroplasties in 60 patients.

A clinical study of 60 patients who underwent 66 costochondral arthroplasties during the period 1969-1984 is presented. In nearly half of the cases ankylosis was the main indication for operation, followed by dysplasia, tumours and osteomyelitis. The results showed that all cases in which the rib was decorticated to fit into the mandible as an inlay healed well. The mean time of IMF was 3.5 weeks. In the majority of the patients (67%) the postoperative function of the mandible was considered to be good or excellent, and nearly all patients were pain free. There were no postoperative chest infections and only one case of pneumothorax. Motor and sensory disturbances in the lower lip were each diagnosed in ten per cent of the patients.

Adolescent↗
PubMed1985

Surgery in mandibular condylar hyperplasia.

The experience with 35 patients with unilateral condylar hyperplasia is described. Possibilities of distinction between active and non-active cases are discussed as well as the histological findings. Different surgical procedures were used for treatment. Pain in the joint area is a prominent feature in this group. The treatment was effective in this regard in all patients.

Adolescent↗
PubMed1984

Leiomyosarcoma of the mandible: diagnosis as aided by immunohistochemical demonstration of desmin and laminin.

A mandibular spindle-cell sarcoma originally diagnosed as malignant fibrous histiocytoma displayed a whorl-like histological structure and cellular pleomorphism. By electron microscopy the tumor cells showed prominent basal laminae around the tumor cells and bundles of myofilaments with attachment plaques. In support of the ultrastructural observations, immunofluorescence (IF) microscopy with antibodies to laminin, the major component of basal lamina, gave a bright pericellular staining of the tumor cells. IF microscopy using antibodies against intermediate filament (IMF) proteins revealed the presence of desmin, the muscle-type of IMF protein, in most tumor cells. On the other hand, staining for myoglobin was negative. The data are consistent with the diagnosis of leiomyosarcoma rather than malignant fibrous histiocytoma, and suggest that expression of desmin and laminin can be useful markers of smooth-muscle derivation of sarcomatous tumors.

Desmin↗
PubMed1983

Immunological features of patients with chronic sclerosing osteomyelitis of the mandible.

Immunological status was studied in 15 patients, aged 11 to 71 years, with chronic sclerosing mandibular osteomyelitis. Duration of disease ranged from 1 to 16 years. Routine serological and immunological tests revealed some abnormality in all patients. All except one had an accelerated ESR. The Waaler-Rose titre was raised in 3 patients; in 1 it was 2000 (normal less than 32). Nuclear antibodies were detected in 2 patients, organ-specific antibodies in 3, and antibodies to double-stranded DNA in 1. In only 4 patients were the serum concentrations of immunoglobulins IgG, IgA, IgM and IgE within normal limits; all had normal concentrations of C3 and C4. None had raised antibody titres against viruses or precipitating antibodies to either milk protein or gluten. In none could evidence of food allergy be detected. PHA stimulation of lymphocytes was normal in all patients. HLA-typing in 12 patients showed that 4 had the antigen B13, 3 had B27, and of these 3 patients had the combination B13, B27. The function of neutrophils was studied in 5 patients. In all these patients the chemokinesis was significantly increased, whereas other phagocytic activities were normal. Most of our patients had a hyperactive humoral immune response. The clinical relevance of this finding awaits further, mainly immunogenetic, study.

Adolescent↗
PubMed1983

Central luxation or dislocation of the mandibular condyle into the middle cranial fossa. A case report and review of the literature.

This case report concerns a central luxation of the mandibular condyle of an 11-year-old girl. After a fall from a bicycle, the mandibular condyle luxated into the middle cranial fossa. The mandible was "ankylosed" in an ipsilateral latero-occlusion, and the diagnosis was confirmed by temporomandibular joint radiography. Immediate conservative reposition was performed successfully, without any immobilisation. After 18 months follow-up, the temporomandibular joint function was normal and painless despite progressive degenerative changes in the mandibular condyle. The patient's facial appearance proved to be normal.

Child↗
PubMed1981

Closed condylotomy in the treatment of osteoarthritis of the temporomandibular joint. Clinical and radiographic study.

25 condylotomies performed on 24 patients for the treatment of osteoarthritic derangements of the temporomandibular joint are reviewed. Clinical and radiological notes are recorded. The follow-up time was at least 3 years (mean 4.7 years). The healing of various symptoms and signs is considered very successful. The mandibular excursions improved after operation. Surface erosion healed. Otherwise condyle flattening or remodelling was noted. The relationship between the pain/dysfunction syndrome and degenerative joint disease are considered.

Adolescent↗
PubMed1981

Extra-articular fibrous ankylosis of the mandible after zygomatic fracture.

Zygomatico-coronoid fibrous ankylosis of the mandible is a complication which rarely occurs if fractures of the middle third of the facial skeleton have been adequately treated. 379 zygomatic fractures in hospitalized patients were treated at the Department of Jaw Surgery of the Surgical Hospital in Helsinki between 1969 and 1975. 36 cases were characterized by convalescence being complicated by significant restriction of jaw opening. 25 patients were successfully treated by physiotherapy and 6 other by a forced opening of the jaws under general anaesthesia. In the remaining 5 cases 91.3% of the fractures) the clinically verified fibrous extra-articular ankylosis was resistant to the above mentioned conservative methods and was treated instead by intraoral coronoidectomy, supplemented in one instance by a partial myotomy of the affected masseter muscle. The importance of prophylactic physiotherapy is stressed and applies to both the post-accident and the post-corrective-operation period.

Adolescent↗
PubMed1979

Fatality from central hemangioma of the mandible.

Fatalities from central hemangiomas, including a new case, are reviewed. The importance of a thorough examination of young patients with suspicious gingival bleeding and mobile teeth before extraction is emphasized. The nature of the lesion and the methods of treatment are discussed. In the case reported, there were arteriovenous malformations in the soft tissues surrounding the mandible and a seemingly separate central mandibular lesion. The latter showed rapid growth throughout the mandible, ending fatally after spontaneous bleeding and extraction of the mandibular third molar. During the preceding three years, bilateral external carotid ligation had been performed and numerous conservative measures had been taken, including corticosteroid therapy, injections of Sotradecol, and telecobalt irradiation, all with little benefit.

Angiography↗
PubMed1978

Central giant-cell lesion in the mandibular condyle. Report of a case.

Giant-cell lesions of the temporomandibular joint are rare. In the present case a central giant-cell lesion of the temporomandibular joint is described, and the distinction between central giant-cell reparative granulomas and giant-cell tumors is discussed. Successful reconstruction of the temporomandibular joint by means of an 8 cm. costochondral graft in an elderly patient with a central giant-cell lesion of the mandibular condyle is also reported.

Giant Cell Tumors↗
PubMed1978

Closed condylotomy in the treatment of recurrent dislocation of the mandibular condyle.

Twenty-one patients 10-79 years of age were operated on for recurrent dislocation of the mandibular condyle using Kostecka's closed condylotomy method. The procedure alters the condyle position and will indirectly shorten the lateral pterygoid muscle, thus eliminating its pulling power to the condyle, even though it still functions. For the study, a late examination was performed with at least 1 year's follow-up. Seventeen patients were cured after unilateral or bilateral condylotomies, and two patients were asked to undergo a second operation on the opposite side. In normal cases any joint operated on was cured. Two cases suffering from congenital torticollis or disseminated sclerosis were felt to be unsuccessful. One exceptional case resulted in a pseudarthrosis, and was repaired by rib bone cartilage transplant. The method is the simplest and least traumatic when recurrent dislocation of the temporomandibular joint is treated surgically.

Adolescent↗
PubMed1977

Ankylosis of the temporomandibular joint of a child. Report of a case.

An ankylosis of the temporomandibular joint (TMJ) in early childhood may lead to growth disturbances. In the reported case, unilateral ankylosis caused asymmetry and serious difficulties in eating and breathing during sleep. The autologous costochondral junction serving as a growth center, replacing the condylar defect, was used as arthroplastic material in a patient 8 years of age. In a follow-up 6 years later the patient revealed satisfactory opening movements and good chewing function. It was noted that the operated grafted side increased in length slightly more than the other side.

Age Factors↗
PubMed1976

Transosseous wiring in the treatment of condylar fractures of the mandible.

During 1973-1975, 27 patients with condylar fractures at the lower or middle level were operated on via the submandibular approach; 5 patients were under 14 years of age. The condyles were medially dislocated or severely displaced, leading to malocclusion. Various kinds of transosseous wirings were used and the mean time of intermaxillary fixation was 22.6 days. The follow-up study of the 27 patients was made on average 11.6 months after the operation. Postoperatively the mouth opening averaged 41.5 mm. There was a slight deviation of the chin (mean 2mm) to the operated side in half the cases. Lateral excursions were within normal limits. Slight motor weakness in the lower lip on the operated side was noted in 3 cases and mild pain in the operated joint in 8 cases. A radiograph revealed some shortening of the condyle in most cases, and some kind of angulation, mostly posterior, in half the cases. No tendency to ankylosis was found and totally normal and symmetric function of the joints was noted in 24 cases. In the light of the results of this follow-up study the method presented, which is not a very easy one, seems to be useful.

Adolescent↗