Valiño-Cultelli Victoria, Varela-López Óscar, González-Cantalapiedra Antonio
Department of Anatomy, Animal Production and Veterinary Clinical Sciences, Veterinary Faculty, Universidad de Santiago de Compostela, 27002 Lugo, Spain.
Animals (Basel). 2021 Apr 28;11(5):1271. doi: 10.3390/ani11051271.
Our objectives were to determine whether PLA implants can be used in TTA with successful results; secondly, to observe whether they provide a faster bone healing; finally, to determine whether weight or age influences bone healing scores. PLA cages were created with a 3D printer. TTA by MMT with PLA implants was performed in 24 patients. Follow-ups were carried out pre-surgical, at 1, 2, and 5 months and consisted of a radiographic study and a lameness assessment. A comparison was performed in terms of weight and age. Patients data, time between follow-up examinations, healing score, and lameness score were compared between patients using commercial software for statistically significant differences < 0.05. Eighteen dogs finished the study. The ossification degrees presented statistically significant differences between each other. PLA implants maintained the advancement in 100% of cases. Comparing weight and age did not present any statistically significant differences between groups. Lameness presented statistically significant differences between follow-up examinations. Complications were observed in 20.8%. PLA implants for TTA provide good functional results, presenting an acceptable rate of complications. They provide a faster bone healing of the osteotomy gap, which was not affected by age or body weight, and have a clinical recovery time similar to metallic implants.
我们的目标是确定聚乳酸（PLA）植入物是否可用于胫骨结节前移术（TTA）并取得成功；其次，观察它们是否能促进更快的骨愈合；最后，确定体重或年龄是否会影响骨愈合评分。PLA椎间融合器是用3D打印机制作的。对24例患者进行了采用PLA植入物的MMT-TTA手术。在术前、术后1个月、2个月和5个月进行随访，包括影像学研究和跛行评估。对体重和年龄进行了比较。使用商业软件比较患者数据、随访检查之间的时间、愈合评分和跛行评分，以确定统计学上的显著差异<0.05。18只狗完成了研究。骨化程度之间存在统计学上的显著差异。PLA植入物在100%的病例中保持了前移效果。比较体重和年龄，各组之间未出现任何统计学上显著差异。随访检查之间跛行存在统计学上的显著差异。观察到并发症发生率为20.8%。用于TTA的PLA植入物提供了良好的功能结果，并发症发生率可接受。它们能使截骨间隙更快地愈合，且不受年龄或体重影响，临床恢复时间与金属植入物相似。
