Aim: The aim of this study is to compare the different types of fusion materials known as PEEK cages used during anterior cervical discectomy (ACD) surgery.
Material And Methods: A total of 67 patients were operated and evaluated retrospectively under two groups (group A: 35 PEEK cage patients, group B: 32 bladed PEEK cage patients) between 2009 and 2013. Preoperative and postoperative (postoperative first day, postoperative 1st, 3rd and 12-24th mo) images were obtained. The cervical disc heights, cervical and segmental lordotic angles of the operated levels were calculated. Pain assessment was performed and fusion rates were also compared. Mann-Whitney U test was applied to compare the outcomes.
Results: The pain scores (especially for arm pain) were decreased significantly in both groups after surgery regardless of the type of operation technique (P < 0.05). There were no significant differences between both groups at the disc height measurements of operated levels in postoperative periods (P > 0.05). In addition to these; there was no significant difference between both groups of segmental and cervical lordodic angles in postoperative periods (P > 0.05). There was no statistically significant difference between the fusion rates and pain scores of both groups (P > 0.05).
Conclusion: The PEEK cage and bladed PEEK cages can be used safely to obtain fusion after ACD.
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http://dx.doi.org/10.5137/1019-5149.JTN.12797-14.1 | DOI Listing |
Heliyon
January 2024
Pantheon Virtual Engineering Solutions, (PTY), Nigel,10 Apricot Avenue, Alra Park, 1491, South Africa.
If the failed fan blade (FB) is not contained in the fan casing (FC) at the time of failure, a catastrophic disaster could follow from the failure of the aircraft's engine turbine. Unfavorable problems including the aircraft malfunctioning, a potential engine shutdown, and even a crash could occur if the detached FB enters the FC. This study employed the Finite Elements Method (FEM) to examine the effects of utilizing Polyether Ether Ketone (PEEK) as an alternative FB material on the FC in order to address this issue.
View Article and Find Full Text PDFCureus
November 2023
Orthopedic Surgery, State University of New York Upstate Medical University, Syracuse, USA.
Introduction: Anterior cervical decompression and fusion (ACDF) is the standard surgical procedure for cervical radiculopathy and myelopathy, although ACDF includes risks of adjacent segment disease (ASD) and subsequent revision procedures. Various interbody cage, plate, and screw options can be utilized. Stand-alone devices were designed to overcome undesired complications of hardware prominence and associated dysphagia, soft tissue violation, and adjacent level encroachment.
View Article and Find Full Text PDFInt Orthop
August 2023
Department of Orthopedic and Sports Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
Purpose: The purpose of this historical review is to illustrate the progression and evolution of treatment for distal femur fractures.
Methods: Scientific literature was searched for descriptions of treatment for distal femur fractures to provide an in-depth overview of the topic, with emphasis on the evolution of surgical constructs used to treat these fractures.
Results: Prior to the 1950s, distal femur fractures were treated nonoperatively, resulting in considerable morbidity, limb deformity, and limited function.
Injury
February 2022
Department of Orthopedics, Peking University Third Hospital, No. 49, North Garden Rd., Haidian District, Beijing 100191, China; Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China, 10091. Electronic address:
Background: Patients with a lateral femoral wall (LFW) fracture were reported to have high rates of re-operation and complication. Although the LFW thickness was a reliable predictor of post-operative or intra-operative LFW fracture, there was a paucity of literature evaluating the critical stress distributions on the femur and screws of intertrochanteric fractures treated with dynamic hip screw (DHS). This study aimed to investigate the biomechanical performance of intertrochanteric fractures with different LFW thickness treated with DHS device.
View Article and Find Full Text PDFJ Mater Chem B
October 2021
School of Materials Science and Engineering, Nanjing University of Science and Technology, 210094 Nanjing, China.
Polyetheretherketone (PEEK) is widely considered as a promising material for joint implants but it still has limitations involving high friction and wear. To mimic the cartilage-subchondral bone structure in natural joints, a polyvinyl alcohol (PVA) hydrogel layer was fabricated on the PEEK substrate to provide a lubrication mechanism. In addition, tannic acid was applied to form dynamic hydrogen bonds with PVA molecules, for the purpose of strengthening the hydrogel layer and endowing it with self-healing ability.
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