Alteration in ACL loading after total and partial medial meniscectomy

Küçük Resim Yok

Tarih

2024

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Bmc

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

Anterior cruciate ligament (ACL) injuries are often caused by high impact loadings during competitive sports but may also happen during regular daily activities due to tissue degeneration or altered mechanics after a previous knee injury or surgery such as meniscectomy. Most existing research on ACL injury has focused on impact loading scenarios or the consequence of ACL injury on meniscus. The objective of the present study was to investigate the effects of varying degrees of medial meniscectomy on the mechanics of intact ACL by performing a poromechanical finite element analysis under moderate creep loadings. Four clinical scenarios with 25%, 50%, 75% and total medial meniscectomy were compared with the intact knee finite element model. Our results suggested that different medial meniscal resections may increase, at different extents, the knee laxity and peak tensile stress in the ACL, potentially leading to collagen fiber fatigue tearing and altered mechanobiology under normal joint loadings. Interestingly, the ACL stress actually increased during early knee creep (similar to 3 min) before it reached an equilibrium. In addition, meniscectomy accelerated ACL stress reduction during knee creep, transferred more loading to tibial cartilage, increased contact pressure, and shifted the contact center posteriorly. This study may contribute to a better understanding of the interaction of meniscectomy and ACL integrity during daily loadings.

Açıklama

Anahtar Kelimeler

ACL mechanics, Creep loading, Finite element, Knee laxity, Poromechanical model, Anterior Cruciate Ligament, Acute Traumatic Hemarthrosis, Knee-Joint, Lateral Meniscectomy, Deficient Knee, Compressive Load, Muscle Force, Tibial Loads, In-Vitro, Biomechanics

Kaynak

Bmc Musculoskeletal Disorders

WoS Q Değeri

N/A

Scopus Q Değeri

Q2

Cilt

25

Sayı

1

Künye