6 research outputs found
Π‘ΡΠ°Π²Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΎΡΡΠ΅ΠΎΠΈΠ½ΡΠ΅Π³ΡΠ°ΡΠΈΠΈ ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½Π½ΡΡ Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ Π°Π΄Π΄ΠΈΡΠΈΠ²Π½ΡΡ ΡΠ΅Ρ Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ ΡΠΈΡΠ°Π½ΠΎΠ²ΡΡ ΠΈ ΡΡΠ°Π»ΡΠ½ΡΡ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΎΠ² Π² Π±ΠΎΠ»ΡΡΠ΅Π±Π΅ΡΡΠΎΠ²ΠΎΠΉ ΠΊΠΎΡΡΠΈ ΠΊΡΠΎΠ»ΠΈΠΊΠ° Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ Π²Π½Π΅ΡΠ½Π΅ΠΉ ΡΠΈΠΊΡΠ°ΡΠΈΠΈ
Relevance. The main goals of successful prosthesis remain ensuring the osseointegration and infectious safety of implants.The purpose of the study β the comparative analysis of osseointegration of titanium and steel additive manufactured implants in the rabbit tibia under additional fixation by Ilizarov apparatus.Materials and Methods. The study was performed on 20 chinchilla male rabbits. The animals of the first group (n = 8 ) were implanted a stainless steel product EOS PH1 (EOS, Germany), the animals of the second group (n = 12) β a titanium alloy Ti6Al4V product. The implant was additionally fixed by Ilizarov apparatus. The implants were processed with additive technology by selective laser fusion at the EOSINT M 280 installation (EOS, Germany). The survival and safety of the implants were assessed using clinical, histological, laboratory and statistical methods.Results. The implant fall due to chronic inflammation was found in 2 animals of group 1 and none in group 2. The formation of weakly mineralized bone tissue on the surface of the implant was noted in 3 weeks in all cases. The bone became more mineralized by the 12th week of the experiment. However, in group 2, the calcium content and Ca / P ratio of the newly formed bone tissue at the 3rd and 12th week after implantation were significantly higher than in the animals of group 1. This indicated the greater maturity of the bone tissue in animals of group 2 at all stages of the experiment. In group 1, the compact plate osteoporosis and calcium-phosphorus balance disturbance were greater.Conclusion. The results of the study indicate that the survival rate (osseointegration) and safety of the product made of the titanium alloy were higher compared with the stainless steel product.ΠΠΊΡΡΠ°Π»ΡΠ½ΠΎΡΡΡ. ΠΡΠ½ΠΎΠ²Π½ΡΠΌΠΈ Π·Π°Π΄Π°ΡΠ°ΠΌΠΈ ΡΡΠΏΠ΅ΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΎΡΡΠ°ΡΡΡΡ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΠ΅ ΠΎΡΡΠ΅ΠΎΠΈΠ½ΡΠ΅Π³ΡΠ°ΡΠΈΠΈ ΠΈ ΠΈΠ½ΡΠ΅ΠΊΡΠΈΠΎΠ½Π½ΠΎΠΉ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΎΠ².Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β ΡΡΠ°Π²Π½ΠΈΡΠ΅Π»ΡΠ½ΡΠΉ Π°Π½Π°Π»ΠΈΠ· ΠΎΡΡΠ΅ΠΎΠΈΠ½ΡΠ΅Π³ΡΠ°ΡΠΈΠΈ ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½Π½ΡΡ
Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ Π°Π΄Π΄ΠΈΡΠΈΠ²Π½ΠΎΠΉ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΡΠΈΡΠ°Π½ΠΎΠ²ΡΡ
ΠΈ ΡΡΠ°Π»ΡΠ½ΡΡ
ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΎΠ² Π² Π±ΠΎΠ»ΡΡΠ΅Π±Π΅ΡΡΠΎΠ²ΠΎΠΉ ΠΊΠΎΡΡΠΈ ΠΊΡΠΎΠ»ΠΈΠΊΠ° Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΡΠΈΠΊΡΠ°ΡΠΈΠΈ Π±ΠΈΠΎΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ Π°ΠΏΠΏΠ°ΡΠ°ΡΠΎΠΌ ΠΠ»ΠΈΠ·Π°ΡΠΎΠ²Π°.ΠΠ°ΡΠ΅ΡΠΈΠ°Π» ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΎ Π½Π° 20 ΠΊΡΠΎΠ»ΠΈΠΊΠ°Ρ
-ΡΠ°ΠΌΡΠ°Ρ
ΠΏΠΎΡΠΎΠ΄Ρ Π¨ΠΈΠ½ΡΠΈΠ»Π»Π°. ΠΠΈΠ²ΠΎΡΠ½ΡΠΌ ΠΏΠ΅ΡΠ²ΠΎΠΉ Π³ΡΡΠΏΠΏΡ (n = 8) ΠΈΠΌΠΏΠ»Π°Π½ΡΠΈΡΠΎΠ²Π°Π»ΠΈ ΠΈΠ·Π΄Π΅Π»ΠΈΠ΅ ΠΈΠ· Π½Π΅ΡΠΆΠ°Π²Π΅ΡΡΠ΅ΠΉ ΡΡΠ°Π»ΠΈ ΠΌΠ°ΡΠΊΠΈ EOS PH1 (EOS, ΠΠ΅ΡΠΌΠ°Π½ΠΈΡ), ΠΆΠΈΠ²ΠΎΡΠ½ΡΠΌ Π²ΡΠΎΡΠΎΠΉ Π³ΡΡΠΏΠΏΡ (n = 12) β ΠΈΠ· ΡΠΈΡΠ°Π½ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΏΠ»Π°Π²Π° ΠΌΠ°ΡΠΊΠΈ Ti6Al4V. ΠΠΌΠΏΠ»Π°Π½ΡΠ°Ρ Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠΈΠΊΡΠΈΡΠΎΠ²Π°Π»ΠΈ Π°ΠΏΠΏΠ°ΡΠ°ΡΠΎΠΌ ΠΠ»ΠΈΠ·Π°ΡΠΎΠ²Π°. ΠΠΌΠΏΠ»Π°Π½ΡΠ°ΡΡ Π±ΡΠ»ΠΈ ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½Ρ Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ Π°Π΄Π΄ΠΈΡΠΈΠ²Π½ΠΎΠΉ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΡ Π½Π° ΡΡΡΠ°Π½ΠΎΠ²ΠΊΠ΅ EOSINT M 280 (EOS, ΠΠ΅ΡΠΌΠ°Π½ΠΈΡ). ΠΡΠ΅Π½ΠΊΡ ΠΏΡΠΈΠΆΠΈΠ²Π°Π΅ΠΌΠΎΡΡΠΈ ΠΈ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΎΠ² ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ, Π³ΠΈΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ, Π»Π°Π±ΠΎΡΠ°ΡΠΎΡΠ½ΠΎΠ³ΠΎ ΠΈ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ² ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. Π£ ΠΆΠΈΠ²ΠΎΡΠ½ΡΡ
Π³ΡΡΠΏΠΏΡ 1 Π±ΡΠ»ΠΎ Π·Π°ΡΠΈΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΎ Π΄Π²Π° ΡΠ»ΡΡΠ°Ρ Π²ΡΠΏΠ°Π΄Π΅Π½ΠΈΡ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠ° ΠΏΠΎ ΠΏΡΠΈΡΠΈΠ½Π΅ Ρ
ΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π²ΠΎΡΠΏΠ°Π»Π΅Π½ΠΈΡ, Π² Π³ΡΡΠΏΠΏΠ΅ 2 ΡΠ°ΠΊΠΈΡ
ΡΠ»ΡΡΠ°Π΅Π² ΠΎΡΠΌΠ΅ΡΠ΅Π½ΠΎ Π½Π΅ Π±ΡΠ»ΠΎ. ΠΠΎ Π²ΡΠ΅Ρ
ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Ρ
ΡΠ΅ΡΠ΅Π· 3 Π½Π΅Π΄. ΠΎΡΠΌΠ΅ΡΠ΅Π½ΠΎ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ»Π°Π±ΠΎΠΌΠΈΠ½Π΅ΡΠ°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠΉ ΠΊΠΎΡΡΠ½ΠΎΠΉ ΡΠΊΠ°Π½ΠΈ Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠ°, ΠΊΠΎΡΠΎΡΠ°Ρ ΡΡΠ°Π½ΠΎΠ²ΠΈΠ»Π°ΡΡ Π±ΠΎΠ»Π΅Π΅ ΠΌΠΈΠ½Π΅ΡΠ°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠΉ ΠΊ 12-ΠΉ Π½Π΅Π΄. ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°. ΠΠ΄Π½Π°ΠΊΠΎ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ ΠΊΠ°Π»ΡΡΠΈΡ ΠΈ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠ΅ Π‘Π°/Π Π² Π½ΠΎΠ²ΠΎΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½Π½ΠΎΠΉ ΠΊΠΎΡΡΠ½ΠΎΠΉ ΡΠΊΠ°Π½ΠΈ Π² Π³ΡΡΠΏΠΏΠ΅ 2 Π½Π° 3-ΠΉ ΠΈ 12-ΠΉ Π½Π΅Π΄. ΠΏΠΎΡΠ»Π΅ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΠΈ Π±ΡΠ»ΠΎ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈ Π·Π½Π°ΡΠΈΠΌΠΎ Π²ΡΡΠ΅ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Π΅ΠΉ ΠΆΠΈΠ²ΠΎΡΠ½ΡΡ
Π³ΡΡΠΏΠΏΡ 1, ΡΡΠΎ ΡΠ²ΠΈΠ΄Π΅ΡΠ΅Π»ΡΡΡΠ²ΠΎΠ²Π°Π»ΠΎ ΠΎ Π±ΠΎΠ»ΡΡΠ΅ΠΉ Π·ΡΠ΅Π»ΠΎΡΡΠΈ ΠΊΠΎΡΡΠ½ΠΎΠΉ ΡΠΊΠ°Π½ΠΈ Ρ ΠΆΠΈΠ²ΠΎΡΠ½ΡΡ
Π³ΡΡΠΏΠΏΡ 2 Π½Π° Π²ΡΠ΅Ρ
ΡΡΠ°ΠΏΠ°Ρ
ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°. Π Π³ΡΡΠΏΠΏΠ΅ 1 ΠΎΡΠΌΠ΅ΡΠ°Π»ΠΈ Π±ΠΎΠ»ΡΡΡΡ Π²ΡΡΠ°ΠΆΠ΅Π½Π½ΠΎΡΡΡ ΠΎΡΡΠ΅ΠΎΠΏΠΎΡΠΎΠ·Π° ΠΊΠΎΠΌΠΏΠ°ΠΊΡΠ½ΠΎΠΉ ΠΏΠ»Π°ΡΡΠΈΠ½ΠΊΠΈ ΠΈ Π±ΠΎΠ»Π΅Π΅ ΡΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠ΅ Π½Π°ΡΡΡΠ΅Π½ΠΈΠ΅ ΠΊΠ°Π»ΡΡΠΈΠΉ-ΡΠΎΡΡΠΎΡΠ½ΠΎΠ³ΠΎ Π±Π°Π»Π°Π½ΡΠ°.ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡ Π·Π°ΠΊΠ»ΡΡΠΈΡΡ, ΡΡΠΎ ΠΏΡΠΈΠΆΠΈΠ²Π°Π΅ΠΌΠΎΡΡΡ (ΠΎΡΡΠ΅ΠΎΠΈΠ½ΡΠ΅Π³ΡΠ°ΡΠΈΡ) ΠΈ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΡ ΠΈΠ·Π΄Π΅Π»ΠΈΡ, Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠ³ΠΎ ΠΈΠ· ΡΠΈΡΠ°Π½ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΏΠ»Π°Π²Π°, Π±ΡΠ»Π° Π²ΡΡΠ΅ ΠΏΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ Ρ ΠΈΠ·Π΄Π΅Π»ΠΈΠ΅ΠΌ ΠΈΠ· Π½Π΅ΡΠΆΠ°Π²Π΅ΡΡΠ΅ΠΉ ΡΡΠ°Π»ΠΈ
ΠΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ 3D-ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΎΠ² Ρ Π±ΠΈΠΎΠ°ΠΊΡΠΈΠ²Π½ΡΠΌΠΈ ΡΠ²ΠΎΠΉΡΡΠ²Π°ΠΌΠΈ Π΄Π»Ρ Π·Π°ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΠΎΠ±ΡΠΈΡΠ½ΡΡ Π΄Π΅ΡΠ΅ΠΊΡΠΎΠ² ΠΊΠΎΡΡΠ΅ΠΉ: ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅
Background. The problem of replacing extensive bone defects remains relevant. The use of implant structures with bioactive properties can stimulate osteogenesis, which will improve the final treatment result.The aim of the study. In an in vivo experiment, to study the possibility of replacing an extensive defect in the bone diaphysis with a personal bioactive cellular 3D implant and evaluate the long-term results of its use.Materials and Methods. In an in vivo experiment, adult large mongrel dogs (n = 8) were modeled with an extensive segmental defect of the tibial diaphysis measuring 4 cm. The defect was replaced with a cellular bioactive 3D implant made of titanium alloy Ti6Al4V, manufactured using the additive technology. The diameter of the cells was 1.5 mm on average. The walls of the implant had pores of 100β 300 ΞΌm in size. The inner and outer surfaces were coated with a calcium phosphate layer formed by micro-arc oxidation. The primary fixation was provided with the Ilizarov apparatus. In the early postoperative period, antibiotic prophylaxis with broad-spectrum drugs was performed. Clinical, X-ray, histological and statistical methods were used to analyze the results. The main control points were considered: the end of external fixation with the Ilizarov apparatus, after 180 days and 1 year after the termination of external fixation.Results. During the experiment, the death of animals and complications were not observed. The spatial location of the implant was preserved. The formation of a strong bone-implantation block occurred 37.2Β±6.3 days after the operation. During this period, the external fixation apparatus was dismantled. Osseointegration was provided under conditions of sufficient primary mechanical stability, due to the cellular structure of the implant, the presence of pores on its walls, and the osteoinductive properties of the applied calcium phosphate coating. The achieved degree of osseointegration persisted in long-term periods (6 months and 1 year after the termination of external fixation). The osteoinductive properties of the calcium phosphate coating were confirmed by the expression of osteopontin cells at all stages of the experiment. Outflow of Ca and P from bone fragments was not observed. An elastic sheath was formed on the surface of the implant, similar in structure to the periosteum. The implant cells were filled with a well-vascularized bone substrate. In the projection of the intermediate zone, compact bone tissue was formed, and in the projection of the medullary canal β reticulofibrous bone marrow. This indicates the possibility of organotypic remodeling of bone structures inside the implant.Conclusion. The results of the study showed the effectiveness of using a bioactive cellular 3D implant to replace an extensive defect in the shaft of the bone. The architectonics and osteoinductive properties of the implant surface contributed to the formation of complete osseointegration in a short time, while maintaining the achieved result in long-term periods.ΠΠΊΡΡΠ°Π»ΡΠ½ΠΎΡΡΡ. ΠΡΠΎΠ±Π»Π΅ΠΌΠ° Π·Π°ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΠΎΠ±ΡΠΈΡΠ½ΡΡ
ΠΊΠΎΡΡΠ½ΡΡ
Π΄Π΅ΡΠ΅ΠΊΡΠΎΠ² ΠΎΡΡΠ°Π΅ΡΡΡ Π°ΠΊΡΡΠ°Π»ΡΠ½ΠΎΠΉ. ΠΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ Ρ Π±ΠΈΠΎΠ°ΠΊΡΠΈΠ²Π½ΡΠΌΠΈ ΡΠ²ΠΎΠΉΡΡΠ²Π°ΠΌΠΈ ΠΌΠΎΠΆΠ΅Ρ ΡΡΠΈΠΌΡΠ»ΠΈΡΠΎΠ²Π°ΡΡ ΠΎΡΡΠ΅ΠΎΠ³Π΅Π½Π΅Π·, ΡΡΠΎ ΡΠ»ΡΡΡΠΈΡ ΠΎΠΊΠΎΠ½ΡΠ°ΡΠ΅Π»ΡΠ½ΡΠΉ ΡΠ΅Π·ΡΠ»ΡΡΠ°Ρ Π»Π΅ΡΠ΅Π½ΠΈΡ.Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β Π² ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ΅ in vivo ΠΈΠ·ΡΡΠΈΡΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ Π·Π°ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΠΎΠ±ΡΠΈΡΠ½ΠΎΠ³ΠΎ Π΄Π΅ΡΠ΅ΠΊΡΠ° Π΄ΠΈΠ°ΡΠΈΠ·Π° ΠΊΠΎΡΡΠΈ ΠΏΠ΅ΡΡΠΎΠ½Π°Π»ΡΠ½ΡΠΌ Π±ΠΈΠΎΠ°ΠΊΡΠΈΠ²Π½ΡΠΌ ΡΡΠ΅ΠΈΡΡΡΠΌ 3D-ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΎΠΌ ΠΈ ΠΎΡΠ΅Π½ΠΈΡΡ ΠΎΡΠ΄Π°Π»Π΅Π½Π½ΡΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ Π΅Π³ΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ.Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β Π² ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ΅ in vivo ΠΈΠ·ΡΡΠΈΡΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ Π·Π°ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΠΎΠ±ΡΠΈΡΠ½ΠΎΠ³ΠΎ Π΄Π΅ΡΠ΅ΠΊΡΠ° Π΄ΠΈΠ°ΡΠΈΠ·Π° ΠΊΠΎΡΡΠΈ ΠΏΠ΅ΡΡΠΎΠ½Π°Π»ΡΠ½ΡΠΌ Π±ΠΈΠΎΠ°ΠΊΡΠΈΠ²Π½ΡΠΌ ΡΡΠ΅ΠΈΡΡΡΠΌ 3D-ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΎΠΌ ΠΈ ΠΎΡΠ΅Π½ΠΈΡΡ ΠΎΡΠ΄Π°Π»Π΅Π½Π½ΡΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ Π΅Π³ΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ.ΠΠ°ΡΠ΅ΡΠΈΠ°Π» ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. Π ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ΅ in vivo Π²Π·ΡΠΎΡΠ»ΡΠΌ ΠΊΡΡΠΏΠ½ΡΠΌ Π±Π΅ΡΠΏΠΎΡΠΎΠ΄Π½ΡΠΌ ΡΠΎΠ±Π°ΠΊΠ°ΠΌ (n = 8) ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π»ΠΈ ΠΎΠ±ΡΠΈΡΠ½ΡΠΉ ΡΠ΅Π³ΠΌΠ΅Π½ΡΠ°ΡΠ½ΡΠΉ Π΄Π΅ΡΠ΅ΠΊΡ Π΄ΠΈΠ°ΡΠΈΠ·Π° Π±ΠΎΠ»ΡΡΠ΅Π±Π΅ΡΡΠΎΠ²ΠΎΠΉ ΠΊΠΎΡΡΠΈ Π²Π΅Π»ΠΈΡΠΈΠ½ΠΎΠΉ 4 ΡΠΌ. ΠΠ΅ΡΠ΅ΠΊΡ Π·Π°ΠΌΠ΅ΡΠ°Π»ΠΈ ΡΡΠ΅ΠΈΡΡΡΠΌ Π±ΠΈΠΎΠ°ΠΊΡΠΈΠ²Π½ΡΠΌ 3D-ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΎΠΌ ΠΈΠ· ΡΠΈΡΠ°Π½ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΏΠ»Π°Π²Π° Ti6Al4V, ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½Π½ΡΠΌ ΠΏΠΎ Π°Π΄Π΄ΠΈΡΠΈΠ²Π½ΠΎΠΉ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ. ΠΠΈΠ°ΠΌΠ΅ΡΡ ΡΡΠ΅Π΅ΠΊ ΡΠΎΡΡΠ°Π²Π»ΡΠ» Π² ΡΡΠ΅Π΄Π½Π΅ΠΌ 1,5 ΠΌΠΌ. Π‘ΡΠ΅Π½ΠΊΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠ° ΠΈΠΌΠ΅Π»ΠΈ ΠΏΠΎΡΡ ΡΠ°Π·ΠΌΠ΅ΡΠΎΠΌ 100β300 ΠΌΠΊΠΌ. ΠΠ½ΡΡΡΠ΅Π½Π½ΠΈΠ΅ ΠΈ Π½Π°ΡΡΠΆΠ½ΡΠ΅ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ Π±ΡΠ»ΠΈ ΠΏΠΎΠΊΡΡΡΡ ΠΊΠ°Π»ΡΡΠΈΠΉ-ΡΠΎΡΡΠ°ΡΠ½ΡΠΌ ΡΠ»ΠΎΠ΅ΠΌ, ΡΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΡΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΌΠΈΠΊΡΠΎΠ΄ΡΠ³ΠΎΠ²ΠΎΠ³ΠΎ ΠΎΠΊΡΠΈΠ΄ΠΈΡΠΎΠ²Π°Π½ΠΈΡ. ΠΠ΅ΡΠ²ΠΈΡΠ½ΡΡ ΡΠΈΠΊΡΠ°ΡΠΈΡ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π»ΠΈ Π°ΠΏΠΏΠ°ΡΠ°ΡΠΎΠΌ ΠΠ»ΠΈΠ·Π°ΡΠΎΠ²Π°. Π ΡΠ°Π½Π½Π΅ΠΌ ΠΏΠΎΡΠ»Π΅ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΌ ΠΏΠ΅ΡΠΈΠΎΠ΄Π΅ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ Π°Π½ΡΠΈΠ±ΠΈΠΎΡΠΈΠΊΠΎΠΏΡΠΎΡΠΈΠ»Π°ΠΊΡΠΈΠΊΡ ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΠ°ΠΌΠΈ ΡΠΈΡΠΎΠΊΠΎΠ³ΠΎ ΡΠΏΠ΅ΠΊΡΡΠ° Π΄Π΅ΠΉΡΡΠ²ΠΈΡ. ΠΠ»Ρ Π°Π½Π°Π»ΠΈΠ·Π° ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ² ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π»ΠΈ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΠΉ, ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΠΉ, Π³ΠΈΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΈ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΌΠ΅ΡΠΎΠ΄Ρ. ΠΡΠ½ΠΎΠ²Π½ΡΠΌΠΈ ΠΊΠΎΠ½ΡΡΠΎΠ»ΡΠ½ΡΠΌΠΈ ΡΠΎΡΠΊΠ°ΠΌΠΈ ΡΡΠΈΡΠ°Π»ΠΈ: ΠΎΠΊΠΎΠ½ΡΠ°Π½ΠΈΠ΅ Π²Π½Π΅ΡΠ½Π΅ΠΉ ΡΠΈΠΊΡΠ°ΡΠΈΠΈ Π°ΠΏΠΏΠ°ΡΠ°ΡΠΎΠΌ ΠΠ»ΠΈΠ·Π°ΡΠΎΠ²Π°, ΡΠ΅ΡΠ΅Π· 180 ΡΡΡ. ΠΈ ΡΠ΅ΡΠ΅Π· 1 Π³ΠΎΠ΄ ΠΏΠΎΡΠ»Π΅ ΠΏΡΠ΅ΠΊΡΠ°ΡΠ΅Π½ΠΈΡ Π²Π½Π΅ΡΠ½Π΅ΠΉ ΡΠΈΠΊΡΠ°ΡΠΈΠΈ.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΠ° ΠΏΡΠΎΡΡΠΆΠ΅Π½ΠΈΠΈ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ° Π³ΠΈΠ±Π΅Π»ΠΈ ΠΆΠΈΠ²ΠΎΡΠ½ΡΡ
ΠΈ ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΠΉ Π½Π΅ Π½Π°Π±Π»ΡΠ΄Π°Π»ΠΈ. ΠΡΠΎΡΡΡΠ°Π½ΡΡΠ²Π΅Π½Π½ΠΎΠ΅ ΡΠ°ΡΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠ° ΡΠΎΡ
ΡΠ°Π½ΡΠ»ΠΎΡΡ. Π€ΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΡΠΎΡΠ½ΠΎΠ³ΠΎ ΠΊΠΎΡΡΠ½ΠΎ-ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ Π±Π»ΠΎΠΊΠ° ΠΏΡΠΎΠΈΡΡ
ΠΎΠ΄ΠΈΠ»ΠΎ ΡΠ΅ΡΠ΅Π· 37,2Β±6,3 ΡΡΡ. ΠΏΠΎΡΠ»Π΅ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΈ. Π ΡΡΠΎΡ ΠΏΠ΅ΡΠΈΠΎΠ΄ Π°ΠΏΠΏΠ°ΡΠ°Ρ Π²Π½Π΅ΡΠ½Π΅ΠΉ ΡΠΈΠΊΡΠ°ΡΠΈΠΈ Π΄Π΅ΠΌΠΎΠ½ΡΠΈΡΠΎΠ²Π°Π»ΠΈ. ΠΡΡΠ΅ΠΎΠΈΠ½ΡΠ΅Π³ΡΠ°ΡΠΈΡ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π»Π°ΡΡ Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎΠΉ ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΠΎΠΉ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΠ°Π±ΠΈΠ»ΡΠ½ΠΎΡΡΠΈ Π·Π° ΡΡΠ΅Ρ ΡΡΠ΅ΠΈΡΡΠΎΠΉ ΡΡΡΡΠΊΡΡΡΡ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠ°, Π½Π°Π»ΠΈΡΠΈΡ ΠΏΠΎΡ Π½Π° Π΅Π³ΠΎ ΡΡΠ΅Π½ΠΊΠ°Ρ
ΠΈ ΠΎΡΡΠ΅ΠΎΠΈΠ½Π΄ΡΠΊΡΠΈΠ²Π½ΡΡ
ΡΠ²ΠΎΠΉΡΡΠ² Π½Π°Π½Π΅ΡΠ΅Π½Π½ΠΎΠ³ΠΎ ΠΊΠ°Π»ΡΡΠΈΠΉ-ΡΠΎΡΡΠ°ΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠΊΡΡΡΠΈΡ. ΠΠΎΡΡΠΈΠ³Π½ΡΡΠ°Ρ ΡΡΠ΅ΠΏΠ΅Π½Ρ ΠΎΡΡΠ΅ΠΎΠΈΠ½ΡΠ΅Π³ΡΠ°ΡΠΈΠΈ ΡΠΎΡ
ΡΠ°Π½ΡΠ»Π°ΡΡ ΠΈ Π² ΠΎΡΠ΄Π°Π»Π΅Π½Π½ΡΠ΅ ΠΏΠ΅ΡΠΈΠΎΠ΄Ρ (ΡΠ΅ΡΠ΅Π· 6 ΠΌΠ΅Ρ. ΠΈ 1 Π³ΠΎΠ΄ ΠΏΠΎΡΠ»Π΅ ΠΏΡΠ΅ΠΊΡΠ°ΡΠ΅Π½ΠΈΡ Π²Π½Π΅ΡΠ½Π΅ΠΉ ΡΠΈΠΊΡΠ°ΡΠΈΠΈ). ΠΡΡΠ΅ΠΎΠΈΠ½Π΄ΡΠΊΡΠΈΠ²Π½ΡΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π° ΠΊΠ°Π»ΡΡΠΈΠΉ-ΡΠΎΡΡΠ°ΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠΊΡΡΡΠΈΡ ΠΏΠΎΠ΄ΡΠ²Π΅ΡΠΆΠ΄Π°Π»ΠΈΡΡ ΡΠΊΡΠΏΡΠ΅ΡΡΠΈΠ΅ΠΉ ΠΊΠ»Π΅ΡΠΊΠ°ΠΌΠΈ ΠΎΡΡΠ΅ΠΎΠΏΠΎΠ½ΡΠΈΠ½Π° Π½Π° Π²ΡΠ΅Ρ
ΡΡΠ°ΠΏΠ°Ρ
ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°. ΠΡΡΠΎΠΊΠ° Π‘Π° ΠΈ Π ΠΈΠ· ΠΎΡΠ»ΠΎΠΌΠΊΠΎΠ² ΠΊΠΎΡΡΠΈ Π½Π΅ Π½Π°Π±Π»ΡΠ΄Π°Π»ΠΈ. ΠΠ° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠ° Π±ΡΠ»Π° ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½Π° ΡΠ»Π°ΡΡΠΈΡΠ½Π°Ρ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠ°, ΠΏΠΎ ΡΡΡΠΎΠ΅Π½ΠΈΡ ΡΡ
ΠΎΠΆΠ°Ρ Ρ Π½Π°Π΄ΠΊΠΎΡΡΠ½ΠΈΡΠ΅ΠΉ. Π―ΡΠ΅ΠΉΠΊΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠ° Π±ΡΠ»ΠΈ Π·Π°ΠΏΠΎΠ»Π½Π΅Π½Ρ Ρ
ΠΎΡΠΎΡΠΎ Π²Π°ΡΠΊΡΠ»ΡΡΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΡΠΌ ΠΊΠΎΡΡΠ½ΡΠΌ ΡΡΠ±ΡΡΡΠ°ΡΠΎΠΌ. Π ΠΏΡΠΎΠ΅ΠΊΡΠΈΠΈ ΠΈΠ½ΡΠ΅ΡΠΌΠ΅Π΄ΠΈ- Π°ΡΠ½ΠΎΠΉ Π·ΠΎΠ½Ρ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π»Π°ΡΡ ΠΊΠΎΠΌΠΏΠ°ΠΊΡΠ½Π°Ρ ΠΊΠΎΡΡΠ½Π°Ρ ΡΠΊΠ°Π½Ρ, Π° Π² ΠΏΡΠΎΠ΅ΠΊΡΠΈΠΈ ΠΊΠΎΡΡΠ½ΠΎΠΌΠΎΠ·Π³ΠΎΠ²ΠΎΠ³ΠΎ ΠΊΠ°Π½Π°Π»Π° β ΡΠ΅ΡΠΈΠΊΡΠ»ΠΎΡΠΈΠ±ΡΠΎΠ·Π½ΡΠΉ ΠΊΠΎΡΡΠ½ΡΠΉ ΠΌΠΎΠ·Π³. ΠΡΠΎ ΡΠ²ΠΈΠ΄Π΅ΡΠ΅Π»ΡΡΡΠ²ΡΠ΅Ρ ΠΎ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΠΎΡΠ³Π°Π½ΠΎΡΠΈΠΏΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ΅ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π½ΠΈΡ ΡΡΡΡΠΊΡΡΡ ΠΊΠΎΡΡΠΈ Π²Π½ΡΡΡΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠ°.ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Π±ΠΈΠΎΠ°ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΡΡΠ΅ΠΈΡΡΠΎΠ³ΠΎ 3D-ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠ° Π΄Π»Ρ Π·Π°ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΠΎΠ±ΡΠΈΡΠ½ΠΎΠ³ΠΎ Π΄Π΅ΡΠ΅ΠΊΡΠ° Π΄ΠΈΠ°ΡΠΈΠ·Π° ΠΊΠΎΡΡΠΈ. ΠΡΡ
ΠΈΡΠ΅ΠΊΡΠΎΠ½ΠΈΠΊΠ° ΠΈ ΠΎΡΡΠ΅ΠΎΠΈΠ½Π΄ΡΠΊΡΠΈΠ²Π½ΡΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠ° ΡΠΏΠΎΡΠΎΠ±ΡΡΠ²ΠΎΠ²Π°Π»ΠΈ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠ»Π½ΠΎΠΉ ΠΎΡΡΠ΅ΠΎΠΈΠ½ΡΠ΅Π³ΡΠ°ΡΠΈΠΈ Π² ΠΊΠΎΡΠΎΡΠΊΠΈΠ΅ ΡΡΠΎΠΊΠΈ Ρ ΡΠΎΡ
ΡΠ°Π½Π΅Π½ΠΈΠ΅ΠΌ Π΄ΠΎΡΡΠΈΠ³Π½ΡΡΠΎΠ³ΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ° Π² ΠΎΡΠ΄Π°Π»Π΅Π½Π½ΡΠ΅ ΠΏΠ΅ΡΠΈΠΎΠ΄Ρ
Predictors and outcome associated with an Enterococcus positive isolate during intensive care unit admission
This study reports the incidence, risk factors and mortality associated with a positive Enterococcus spp. isolate during admission to two tertiary intensive care units participating in an antibiotic cycling study. Incidence was low, with only 4.2% of admissions (36/852) at Royal Brisbane and Womenβs Hospital and 2.8% (31/1104) at Westmead Hospital developing a positive Enterococcus spp. isolate (P=0.087). A positive enterococcal isolate, while not an independent predictor of mortality (odds ratio [OR]=1.6, 95% confidence interval [CI] 0.80 to 3.2, P=0.18), may be a marker of the underlying severity of illness with higher unadjusted in-hospital mortality (26% or 17/66 vs 14% or 250/1855, P=0.007). Independent risk factors for a positive isolate were use of meropenem/imipenem (OR=5.7, 95% CI 2.4 to 14,