The Pulley Element

Lesions of the biceps pulley.

BACKGROUND Lesions of the biceps pulley and instability of the long head of the biceps tendon are common diagnoses in patients with anterior shoulder pain. PURPOSE To analyze the pathoanatomy of the biceps reflection pulley ("pulley") in consecutive patients undergoing shoulder arthroscopy. STUDY DESIGN Cohort study (prevalence); Level of evidence, 2. METHODS Prospective data were collect...

Dual Adjustable Pulley (CMDAP)

The effect of partial A2 pulley excision on gliding resistance and pulley strength in vitro.

PURPOSE The purpose of this study was to investigate the effect of partial excision of the A2 pulley on the gliding resistance and the strength of the residual pulleys in a human in vitro model with or without tendon repair. METHODS We used 32 cadaveric human fingers from 11 cadavers. The A2 pulley was excised successively 25%, 50%, and 75%, cutting either from the distal toward the proximal ...

The biomechanical significance of pulley on binocular vision

BACKGROUND Pulleys have been reported as the functional origins of the rectus extraocular muscles (EOMs). However, biomechanical significance of pulleys on binocular vision has not been reported. METHODS Three eye movement models, i.e., non-pulley model, passive-pulley model, and active-pulley model, are used to simulate the horizontal movement of the eyes from the primary position to the lef...

Representing Semantic Information In Pulley Problems

S e v e r a l r e c e n t r e s e a r c h r e p o r t s have f o c u s s e d o n t h e r e p r e s e n t a t i o n and s o l u t i o n o f p rob lems i n s e m a n t i c a l l y r i c h domains ( 1 ) , ( 2 ) , ( 3 ) , ( 4 ) . These i n c l u d e a n a l y s i s o f a l g e b r a word p r o b l e m s a s w e l l as p r o b l e m s in mechan ics and t he rmodynamics . The t e r m " s e m a n t i ...