Anterior cruciate ligament (ACL) plays a crucial role stabilizing the knee joint while connecting tibia to femur. Lack of proper treatment of injured ACL can lead to meniscus tear and osteoarthritis. Interference screws secure the graft tissue for superior integration of graft on host tissue during autograft fixation. Metal interference screws come with various disadvantages like mechanical load mismatch, graft laceration, secondary surgical removal and hindrance during MRI and CT post-operative scan. Though biodegradable polymeric screws provide various advantages their clinical outcomes reveal unprecedented complications for long term use of such screws. This review highlights polymer and composite screw currently available for surgical fixations and associated adverse reactions with the proposed mechanism for tunnel enlargement, effusion, osteolysis in ligament repairs. The need for suitable material engineering for development of orthopedic screws for successful rigid fixation has been highlighted in this review.
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http://dx.doi.org/10.1016/j.msec.2019.110423 | DOI Listing |
Knee Surg Sports Traumatol Arthrosc
December 2024
Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Münster, Germany.
Purpose: To biomechanically evaluate a flat posterior cruciate ligament (PCL) reconstruction utilizing rectangular femoral bone tunnels.
Methods: Eight fresh-frozen human knee specimens were tested in a six-degrees-of-freedom robotic test setup. In each testing step, a force-controlled test protocol was performed, including 89 N posterior tibial translation (PTT) in neutral, internal and external rotation, from 0 to 90° of flexion.
J Clin Orthop Trauma
January 2025
St. George's University Hospitals NHS Foundation Trust, London, SW17 0QT, UK.
Introduction: medial patellofemoral ligament reconstruction (MPFLr) is a common surgical procedure for treating patellar instability. Grafts can be fixed to the femur using a bone-tunnel technique with an interference screw. However, this may lead to femoral tunnel enlargement (FTE) post-operatively.
View Article and Find Full Text PDFMusculoskelet Surg
December 2024
Orthopedic & Rehabilitation Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Arthrosc Tech
November 2024
JMVM Sports Injury Centre, Sitaram Bhartia Institute of Science and Research, New Delhi, India.
Collateral injuries are usually found in association with cruciate ligament tears. There are multiple techniques to reconstruct the collateral ligaments using autografts and allografts. Conventionally, interference screws are used to fix the graft on the femur, tibia, and fibula.
View Article and Find Full Text PDFRev Bras Ortop (Sao Paulo)
December 2024
Serviço de Ortopedia, Centro Hospitalar do Tâmega e Sousa, Penafiel, Portugal.
The original LaPrade technique for anatomic reconstruction of the posterolateral corner of the knee uses two separate allografts. More recently, a modification of this technique, using an adjustable-length suspension device with a cortical button for tibial fixation, allows anatomic reconstruction with a single semitendinosus autograft. This modification is of utmost relevance when sources of allograft are not available for multiligament knee reconstruction.
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