ake up subfascicular units bound together forming a fasciculus. The ACL attaches to the femur and tibia with collagen fibers of the ligament within the mineralized bone. The change from flexible ligamentous tissue to bone is mediated through a zone of fibrocartilage (4:134-135).
Anatomic studies are not conclusive with regard to the synovial reflections around the cruciate ligaments and whether the ACL and the PCL have separate synovial sheaths or one single sheath enveloping them within the same extrasynovial space. Magnetic resonance (MR) images of the knee show a fluid collection within the substance of a cruciate ligament. A 1995 study showed that collections of joint fluid were confined to the boundaries of the intrasynovial space within the knee joint and the cruciate ligaments were extrasynovial. No synovial membrane found between the cruciate ligaments and the triangular space (TSC) revealed that it was also extrasynovial (in the midsagittal plane defined by the two cruciate ligaments and the tibial platea
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