ABSTRACT
Objetivou-se relatar o emprego de uma tala externa confeccionada com material de poliuretano e cobertura interna de neopreme na reparação cirúrgica do pectus excavatum em um felino jovem. O felino apresentava deformidade anatômica congênita na região do externo e sinais clínicos respiratórios. Imagens avançadas de tomografia foram utilizadas para moldar a tala impressa com tecnologia tridimensional. Esta alternativa possibilitou melhor planejamento cirúrgico e, com isso, conforto para o paciente, além da qualidade própria do material de poliuretano que é levemente maleável, o que permitiu melhor moldagem e expansão torácica durante a respiração. A tala se provou resistente o suficiente para suportar a tração ocasionada pelos fios de sutura e possibilitou o reposicionamento adequado do osso esterno ao mesmo tempo que se mostrou confortável e acarretou mínimas lesões ao paciente.
The aim of this paper was to report the use of an external splint made of polyurethane material and internal neopreme covering in the surgical repair of a pectus excavatum in a young feline. The feline exhibited a congenital anatomical deformity in the external region and clinical respiratory signs. Advanced CT images were used to shape the 3D-printed splint. This alternative allowed better surgical planning and, therefore, comfort for the patient, this because to the quality of the polyurethane material, which is slightly malleable, and allowed for better molding and chest expansion during breathing. The splint proved to be strong enough to withstand the traction caused by the suture threads and allowed the proper repositioning of the sternum, at the same time it was comfortable and caused minimal injuries to the patient.
Subject(s)
Animals , Cats , Polyurethanes/therapeutic use , Splints/veterinary , Thoracic Surgery/methods , Congenital Abnormalities/veterinary , Cats/abnormalities , Funnel Chest/veterinary , Printing, Three-DimensionalABSTRACT
Objective: To summarize the therapeutic effect of free deep inferior epigastric perforator (DIEP) flap and anterolateral thigh perforator (ALTP) flap in repairing skin and soft tissue defects in chest wall tumor resection.Methods: One old male patient with malignant fibrous histiocytoma of chest wall in China-Japan Union Hospital received operation,and the tumor was extendedly resected.The remaining chest wall defects were 10 cm×10 cm and 18 cm×14 cm,respectively.Free DIEP and ALTP flaps were used to repair the defects,and vascular pedicle was anastomosed with internal mammary artery and thoracic lateral artery,respectively.Results:After operation,the donor area was sutured directly,and two flaps survived with good appearance.The skin of ALTP flap was flatter than that of DIEP flap,and the texture and color of skin were close to those around chest wall.Conclusion:Free DIEP and ALTP flaps are ideal choice for repairing skin and soft tissue defects after resection in the male patient with chest wall tumor.
ABSTRACT
Objective: To investigate the application of a novel degradable biomaterial-short chitin fiber reinforced polycaprolactone (PCL) as a chest wall prosthesis, so as to assess its feasibility in clinical chest wall recomstruction. Methods: Two kinds of chest wall defects models (10 cm×10 cm) were established in the present study, namely, group I with simple rib resection (n=2) and group II with full-thickness resection (the ribs, rib periosteum, intercostal muscle, parietal pleura, n=8). The defects in both groups were repaired with short chitin fiber reinforced PCL plates. The implanted chest wall prosthesis and the regeneration of the chest wall tissue were dynamically observed postoperatively by X-ray, CT scanning, and histological examinations. Results: No operative/peri-operative death was observed in both groups; flail chest and paradoxical movement were not found in dogs. In group I neogenetic bone tissues were found growing along the surface of chest wall prosthesis and new ribs appeared between prosthesis and parietal pleura. In group II artificial chest wall prosthesis integrated tightly with chest wall ribs and muscle tissues around. Conclusion: Degradable chitin fiber reinforced PCL has fine biocompatibility and can provide effective support for chest walls, making it a promising biomaterial for chest wall reconstruction.