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Biomedical subjects

M Aimetti

Publications and source records attributed to M Aimetti.

8 recordsLinked to original sources
PubMed1999

[Effect of immobilization after treatment of mandibular fractures].

BACKGROUND AND AIM: The aim of this study was to assess whether the duration of intermaxillary block in patients with non-condylar mandibular fractures can interfere with restored mandibular function and whether there is a statistically significant correlation between the duration of joint immobilisation and the onset of temporo-mandibular joint pathologies. METHODS: A clinical evaluation was made of 40 patients treated for non-condylar mandibular fractures during the period 1991-1992. The patients were subdivided into two groups depending on the type of treatment and the duration of the intermaxillary block. Group A included patients treated with intermaxillary block alone lasting more than 25 days. Group B included patients treated surgically with intrafocal osteosynthesis with immobilisation lasting less than 15 days. RESULTS: The follow-up of results (3.7 years) showed a maximum mean aperture in Group A of 45.1 mm compared to 50.1 mm in Group B. The mean score for mandibular clinical dysfunction in patients in Group A was 5.0 points (SD +/- 4.75), whereas it was 0.7 points (SD +/- 1.45) in patients in Group B. This difference between the two groups was statistically significant (p < 0.01). CONCLUSIONS: The results of this study suggest that jaw immobilisation in mandibular fractures may be potentially damaging for the temporo-mandibular joint, sometimes leading to painful dysfunctional syndromes. For this reason, even in the case of mandibular fractures without decomposition, the authors feel that it is advisable to avoid long periods of immobilisation in patients with a positive history of mandibular dysfunction.

Fracture Fixation↗
PubMed1999

[Odontogenic kertocysts. Review of a series of cases and long-term clinical control].

BACKGROUND AND AIMS: The aim of this retrospective study was to identify and evaluate the clinical characteristics and incidence of recidivation in a series of 40 cases of keratocyst consisting of 31 primary lesions, 7 cases of primary recidivation (17.5%) and 2 cases of secondary recidivation (5%). All the lesions were large sized and were treated using surgery. All patients underwent an annual clinical control for a minimum follow-up of seven years. METHODS: The authors present a series of 40 odontogenic keratocysts treated between 1985 and 1996 by the Division of Maxillofacial Surgery at Turin University. The series consisted of 40 keratocysts including 31 primary lesions, 7 cases of primary recidivation (17.5%) and 2 cases of secondary recidivation (5%); 12 patients were female (38.7%) and 19 were male (61.3%). The mean age of patients was 42 years old. The clinical records and enclosed X-ray documentation (OPT X-ray, head X-ray, face X-ray) were examined for each patient, together with histological findings. Each case then underwent an annual follow-up. RESULTS: The review of clinical data and the examination of X-ray documentation showed that 28 lesions developed in the mandible and only 3 cases in the upper jaw. From a therapeutic point of view, keratocysts localised in a mandibular site were managed using cystectomy in 19 cases and in 18 cases this was followed by marsupialisation. Caldwell-Luc's operation was used in 2 cases of intrasinusal maxillary development, whereas the single case of extrasinusal development underwent cystectomy. Recidivation always involved the mandible and occurred in 22% of cases within 5 years of surgery. Of the 19 cases undergoing simple cystectomy, 8 cases (42%) revealed recidivation. Only one (5.5%) of 18 cases treated using cystectomy and marsupialisation showed recurrence. CONCLUSIONS: On the basis of their experience and in view of the specific characteristics of keratocysts, in particular the tendency to undergo recidivation, the authors affirm that annual clinical and radiological controls are indispensable and important, including biopsy where necessary, in order to diagnose new lesions promptly irrespective of the surgical technique used.

Adolescent↗
PubMed1998

[The Caldwell-Luc procedure in the management of maxillary sinusitis. Long-term results].

BACKGROUND: The surgical technique proposed by Caldwell and Luc more than a century ago has been applied in over a million cases to treat maxillary sinusitis. A critical re-evaluation of the method has been in progress for several years, in the light of the results that can be achieved with endoscopic functional surgery. METHODS: In a retrospective study, operations performed according to the Caldwell-Luc technique on 40 patients, mean age 45 years, between 1992 and 1996, were evaluated critically to determine the efficacy of this approach in treating maxillary sinusitis, with particular emphasis on the incidence of immediate or delayed complications. Initially, clinical and radiological data concerning each patient where considered with particular reference to the subjective and objective symptomatology, preoperative radiological diagnosis and etiology of the sinusitis. RESULTS: Having completed the analysis of the documentation available, some of the patients were recalled and subjected to an in-depth instrumental diagnosis through traditional and CT radiography. CONCLUSIONS: It was concluded that, in consideration of the marked incidence of complications, the Caldwell-Luc procedure may be defined as a non-obligatory therapeutic option even in chronic maxillary sinusitis. The use of this surgical procedure is rational in cases of antral tumour, trauma, very serious mycotic or septic factors, or when a surgical approach to the pterigo-maxillary fossa is necessary. In all other cases, the preferred treatment must now be endoscopy.

Adult↗
PubMed1998

[Sinusoscopy in stomatology. Review of a 5-year clinical experience].

BACKGROUND: Investigative sinus endoscopy for purely diagnostic purposes has become an important therapeutic tool for disorders of the paranasal system thanks to the enormous technological developments of the last twenty years. METHODS: In a retrospective study, sinus endoscopies carried out between 1990 and 1994 on 57 patients, mean age 43 years, were subjected to critical re-evaluation, with the aim of evaluating the efficacy of endoscopic treatment. In the first phase, the documentation available for each patient was examined; it included clinical data, preoperative traditional and CT radiographs, rhinoscopic and sinus endoscopic findings. Once the analysis of the available documentation had been completed the patients were recalled and subjected to clinical and radiological evaluation. Radiographic examination was carried out by traditional radiography. RESULTS: CT scanning was only performed for those patients in whom the clinical findings indicated a possible relapse. Immediate and delayed complications occurring after the endoscopic sinus surgery were taken into consideration. CONCLUSIONS: In conclusion, sinus endoscopy is a fundamental instrumental investigation in the diagnosis of rhinosinusopathies. It can no longer be considered as only a diagnostic investigation able to provide clear visual images, it also allows specimens to be taken for bacteriological, micological, cytological and histological analysis. Furthermore, endoscopic surgery can treat pathologies for which, until a few years ago, operations were necessary which respected the physiology of the paranasal system to a much lesser extent (Denker-Caldwell-Luc).

Endoscopy↗
PubMed1997

[Mandibular cysts treated by decompression].

The authors reports a case of mandibular keratocystis treated using decompressive therapy and subsequent cystectomy after subtotal reduction of the cystic lacuna. The bone regenerative process was probably aided by the young age of the patient.

Adolescent↗
PubMed1989

[Polyamines in tumors of the oral cavity].

The polyamines putrescine, spermidine and spermine are essential for normal growth and differentiation and the activity of the enzymes participating in their synthesis and catabolism are markedly modified in actively proliferating cells in vitro and in vivo. In some neoplastic cells a good correlation is observed between polyamine concentration and histology, so that a potential usefulness as diagnostic and prognostic markers has been suggested. In the study of ornithine decarboxylase, S-adenosylmethionine decarboxylase and spermidine acetyltransferase activities and of polyamine concentration in tumors of the oral cavity we have shown a marked increase in the tumor cells. In the epulis the ratio spermidine/spermine is inverted, so that it could be useful in differentiating benign from malign tumors.

Adenosylmethionine Decarboxylase↗
PubMed1989

[Apicoectomy: comparison between 2 case series].

Data on 2 series of apicectomies performed in 1966-69 and 1978-82 respectively are compared. The comparison was based on clinical assessments and radiographic findings in patients given a repeated check-up a later date. Similar results were obtained in the two series, confirming the importance of scrupulous pre-operative endodontic treatment combined with the use of non-absorbable canal material. It is felt that this, combined with a scrupulously precise periapical surgical technique will ensure total success in all cases.

Apicoectomy↗