A carbon fiber-reinforced polyetheretherketone intramedullary nail improves fracture site visibility on postoperative radiographic images. Issue 8 (August 2021)

• Record Type: Journal Article
• Authors: Takashima, Kazuma; Nakahara, Ichiro; Hamada, Hidetoshi; Ando, Wataru; Takao, Masaki; Uemura, Keisuke; Sugano, Nobuhiko
• Is Part Of: Injury. Volume 52:Issue 8(2021)
• Page Start: 2225
• Page End: 2232
• Publication Date: 2021-08
• Subjects: Carbon fiber-reinforced polyetheretherketone -- Intramedullary nail -- Proximal femoral fracture -- Radiolucent -- Visibility -- Fracture healing; Wounds and injuries -- Surgery -- Periodicals; Accidents -- Periodicals; Wounds and Injuries -- surgery -- Periodicals; Lésions et blessures -- Chirurgie -- Périodiques; Electronic journals; Electronic journals; 617.1
• DOI: 10.1016/j.injury.2021.03.048
• Languages: English
• ISSNs: 0020-1383

Abstract

Highlights: We retrospectively compared fracture site visibility between CFR/PEEK and metallic intramedullary nails on postoperative radiographs and CT images. Fracture site visibility in cases treated with the CFR/PEEK nail was superior to that in cases treated with the metallic nail on radiographs. Advantages of the CFR/PEEK nail for evaluation of fracture reduction and healing process over the metallic nail were confirmed. The CFR/PEEK nail evoked little scattering on CT images, leading to higher diagnostic values for peri-prosthetic cancellous and cortical bone compared with the metallic nail. Abstract: Introduction: To evaluate the advantages of a carbon fiber-reinforced polyetheretherketone (CFR/PEEK) intramedullary nail on the diagnosis of fracture healing because of its radiolucency, we retrospectively reviewed radiographs and computed tomography (CT) images of trochanteric femoral fractures that underwent internal fixation with the CFR/PEEK intramedullary nail or a traditional metallic intramedullary nail. Methods: Radiographs and CT images from 20 patients with intertrochanteric femoral fractures treated with a CFR/PEEK intramedullary nail and 20 similar patients treated with a metallic intramedullary nail were reviewed. After division of the intertrochanteric region into three zones on anteroposterior and lateral views of the radiographs, the visibilities of the fracture site, fracture line, and bone formation were evaluated in each zone. A three-grade assessment for existence of scattering and effect of scattering on diagnosis of the surrounding bone was performed on three axial slices of the CT images. Results: In the CFR/PEEK group, the fracture site was visible in all zones for all cases except for the posterior zone on the lateral view in one case. In the cranial and middle zones on anteroposterior views and the middle zone on lateral views of the radiographs, the visible fracture site rates in the CFR/PEEK group were significantly higher than those in the metal group. The grades for existence of scattering and effect of scattering on diagnosis of surrounding bone on the CT images were significantly lower in the CFR/PEEK group compared with the metal group. Conclusion: Superior fracture site visibility on radiographs was demonstrated in cases treated with the CFR/PEEK intramedullary nail compared with cases treated with the traditional metallic intramedullary nail, thereby confirming the advantages of the CFR/PEEK intramedullary nail for evaluation of fracture reduction and bone formation. The CFR/PEEK nail evoked little scattering on CT images, leading to higher diagnostic values for the peri-prosthetic cancellous and cortical bone compared with the metallic nail.