Chpt 76 principles of muscle-tendon and transfers

Question 1

paratenon vs synovial sheath

Answer 1

straight course : loose elastic areolar tissue: paratenon

synovial sheath: tendon rounds a corner, changes direction, or passes under ligamentous structures - it is surrounded by tendon sheath as it acts as a pulley

Question 2

tendon blood supply source

Answer 2

• central vessels from muscle belly
• periosteum/bone
• most blood supply comes from paratenon or meostenon entering by way of hilus

Question 3

stages of tendon healing

Answer 3

1. inflammatory phase (48-72 hrs)
2. fibroblastic (Formative phase) ~5 days-inasmuch as collagen fibers are formed in a random disorganized pattern
   3rd phase: remodeling/organizational phase of maturation and differentiation: 15-28 days as new collagen begins to align itself with tendon