(A) GAG content (μg) of superficial zone and deeper zones disks of the medial, lateral condyle and the patellofemoral groove before injury. (B) GAG density (μg/μm3) × 106 of superficial zone and deeper zones control disks. (C) GAG loss into the media (% of GAG content) after 48 hours of control and injured disks of the superficial zone and deeper zones. (D) GAG density (μg/μm3) × 106 of superficial zone and deeper zones disks before and 5 minutes after injury.
(A, B) Each group of superficial zone and deeper zones disks: n ≥ 12 samples. (C, D) Each group of superficial zone and deeper zones disks: n ≥ 8 samples.