After rotator cuff tears, the remaining (intact) tendons are mechanically altered.
J Shoulder Elbow Surg
; 18(1): 52-7, 2009.
Article
em En
| MEDLINE
| ID: mdl-19095175
ABSTRACT
Although presumed, damage in the remaining (intact) rotator cuff tendons in the presence of an isolated supraspinatus tendon tear or multiple tendon tear has not been well studied. This study used an animal model of multiple rotator cuff tendon tears to investigate alterations in the remaining (intact) tendon mechanical properties at 4 and 8 weeks after injury. Twenty-four rats served as uninjured controls, whereas 72 were divided among 3 tendon detachment groups supraspinatus tendon detachment, supraspinatus + infraspinatus tendon detachment, and supraspinatus + subscapularis tendon detachment. The remaining (intact) rotator cuff tendons had decreased mechanical properties in the presence of rotator cuff tears. The remaining (intact) subscapularis and infraspinatus tendon cross-sectional areas increased, whereas tendon modulus decreased after tears of both 1 and 2 tendons. The remaining (intact) tendon cross-sectional areas continued to increase with time after injury. These alterations could potentially lead to further tendon damage and tear progression.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Traumatismos dos Tendões
/
Tendões
/
Lesões do Manguito Rotador
Tipo de estudo:
Observational_studies
/
Prognostic_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article