Tuompo P, Partio E, Rokkanen P
Department of Orthopaedics and Traumatology, Helsinki University Central Hospital, Finland.
Ann Chir Gynaecol. 1999;88(1):66-72.
The purpose of this study was to evaluate the use of bioabsorbable implants in proximal tibia cancellous bone fixations in 28 patients.
The implants used were self-reinforced polyglycolide (SR-PGA) or self-reinforced polylactide (SR-PLLA) screws or rods. In six patients a high tibial osteotomy and in 16 patients a proximal tibial plateau fracture were secured with these implants (cancellous bone fixations). In addition, four anterior tibial eminence avulsion fractures and two tibial tuberosity avulsions were fixed (avulsion fractures). The average follow-up time was 3.6 years.
In the cancellous bone fixations (15 patients at the follow-up) there were three excellent clinical results, five good, five moderate and two poor results; radiologically there were one excellent result, eight good, five moderate, and one poor result. In the avulsion fracture patients (four patients at the follow-up) there were two excellent and two good clinical results; radiologically all results were excellent. In four cancellous bone fixations redisplacement was noted. In all patients the functional score was 25.6/30 (Rasmussen 1973). The bioabsorbable implants can be used for fixation of proximal tibial cancellous bone osteotomies and fractures and avulsion fractures with good or moderate results.
本研究旨在评估28例患者中生物可吸收植入物在胫骨近端松质骨固定中的应用情况。
所使用的植入物为自增强聚乙醇酸（SR-PGA）或自增强聚丙交酯（SR-PLLA）螺钉或棒。6例患者行高位胫骨截骨术，16例患者胫骨近端平台骨折采用这些植入物进行固定（松质骨固定）。此外，4例胫骨前结节撕脱骨折和2例胫骨结节撕脱伤得到固定（撕脱骨折）。平均随访时间为3.6年。
在松质骨固定组（随访时15例患者），临床结果为3例优秀、5例良好、5例中等和2例差；影像学结果为1例优秀、8例良好、5例中等和1例差。在撕脱骨折患者组（随访时4例患者），临床结果为2例优秀和2例良好；影像学结果均为优秀。在4例松质骨固定中观察到再移位。所有患者的功能评分为25.6/30（Rasmussen 1973）。生物可吸收植入物可用于胫骨近端松质骨截骨术、骨折及撕脱骨折的固定，效果良好或中等。
