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Symphysiotomy, symphysiectomy, and intermandibular arthrodesis in a cat with open-mouth jaw locking--case report and literature review.

A Persian cat was presented with open-mouth jaw locking. It was suspected that abnormal extrusion of the maxillary canine teeth caused contact with the mandibular canine teeth on closure of the mouth, resulting in levering forces that may have led to increased symphyseal mobility, temporomandibular joint laxity, rotational movement of the left mandibular body and locking of the left coronoid process lateral to the zygomatic arch. Symphysiotomy, symphysiectomy, circumferential and interdental wiring, and intraoral resin-based splint application were performed to achieve intermandibular arthrodesis. Following removal of all devices, no further jaw locking episodes were reported during a 33-month follow-up period.

Animals↗

[Current aspects of symphysiotomy. Apropos of 1 case and review of the literature].

Symphysiotomy is regularly performed in developing countries where cesarean section can be a source of significant short-term and long-term morbidity. However, this method can be useful in some rare occasions and should be taught in our countries, at least theoretically. Such a case is presented with a review describing the present surgical technique, its indications and limits with special reference to its possible complications.

Adult↗

[An alternative to cesarean section: symphysiotomy (Zarate's operation)].

The authors explain the technique and the indications of the Zarate's operation. This non-total subcutaneous symphysiotomy eases delivery through natural canals of a cephalic presentation blocked at either the interspinous or at the inferior strait of the pelvis. Such an intervention, almost ignored in France, is really useful in the developing countries. Rather easily performed, it makes possible to limit the necessity of a cesarean section, to prevent both mother and child from serious trauma when instrumental extraction has become necessary in a dystocic pelvis, and finally to reduce the occurrence of vesico-vaginal fistula and hysterorrhexis. On the credit of this method, a special notice must be given to its practicability and to the fact that the uterus remains undamaged. On the other hand, the post-operative recovery is somewhat longer and with more disabling conditions than with the cesarean section; some painful and motor side effects which may last for a rather long time may be imputable to it.

Female↗

[Symphysiotomy. A thought-provoking example of appropriate technique in the Third World].

Cutting through the symphysis pubis cartilage as a means of widening the birth canal during long, drawn-out deliveries was probably common in Europe at the turn of the century and presumably occurred even later. As a result of progress in hygiene and clinical practice, Caesarean section has become much more common in such situations. In developing countries, where supervision of pregnant women is non-existent or extremely poor, Caesarean section can be a dangerous operation. Mortality figures around 1-3% are common, and the women are left with the unfavourable prognosis of a uterine scar. Therefore, symphysiotomy is still practised in settings where neither hygiene nor material resources permit. Caesarean section, because it is simple to perform and makes a negligible demand on resources.

Contraindications↗