RESUMO
Anterior cruciate ligament reconstruction (ACLR) is among the most common procedures performed by orthopaedic sports medicine surgeons and has inherent challenges due to the complex anatomy and biomechanical properties required to reproduce the function and stability of the native ACL. Awareness of the anatomic and biomechanical factors, including graft selection and tunnel placement, along with graft tensioning and fixation techniques, is vital in achieving a successful clinical outcome. Common techniques for ACLR graft fixation include intratunnel fixation with interference screws, suspensory fixation, or hybrid fixation strategies, along with several supplemental fixation techniques. Interference screw fixation may decrease graft-tunnel motion, tunnel widening, and graft creep and may be performed with metallic, PEEK (polyether ether ketone), or bioabsorbable screws. Suspensory fixation techniques primarily include suture-buttons, anchors, staples, and screws/washers. Suspensory fixation allows adequate biomechanical strength, although some techniques have been linked to increased graft-tunnel motion and potential tunnel widening. Supplemental fixation techniques may be performed in the setting of concerns for adequacy of primary fixation and includes the use of suture anchors, staples, and screw/washer devices. Regardless of the implant chosen for fixation, secure fixation is paramount to avoid displacement of the graft and allow for integration into the bone tunnel and facilitates early postoperative rehabilitation. It is important for orthopaedic sports medicine surgeons performing primary and revision ACLR to be familiar with multiple fixation techniques.
Assuntos
Lesões do Ligamento Cruzado Anterior , Reconstrução do Ligamento Cruzado Anterior , Benzofenonas , Humanos , Ligamento Cruzado Anterior/cirurgia , Reconstrução do Ligamento Cruzado Anterior/métodos , Polietilenoglicóis , Polímeros , Cetonas , Lesões do Ligamento Cruzado Anterior/cirurgia , Tíbia/cirurgia , Fenômenos BiomecânicosRESUMO
The COVID-19 pandemic has necessitated new practices in sports medicine patient care. Telehealth has been validated as a reliable tool for consultations and physical examinations and increases access to care in a cost-efficient manner. Social distancing and avoiding team members who have tested positive are the most effective ways to reduce spread. For screening, daily self-reported symptom checklists and fever monitoring help identify potentially infected athletes who should be instructed to isolate and seek care. Polymerase chain-reaction (PCR) testing for the virus via nasopharyngeal swab is not recommended for screening and should be reserved for symptomatic individuals with fever, cough, or shortness of breath. Face masks and personal protective equipment (PPE) may be beneficial in high-risk settings, but there is little evidence to support use in athletic populations. Median return to play after COVID-19 in elite athletes has been reported as 18 days (range: 12 to 30), with 27% not fully available at 28 days. Chest pain at diagnosis was the only symptom associated with time loss longer than 28 days. Finally, canceled competitions or time loss results in grief, stress, and frustration for athletes, as well as loss of a social support network and routine training regimens. Mental health support services may be indicated.