- Anatomy:
- PCL is approximately twice as strong and twice as thick as the normal ACL (therefore less commonly injured);
- size: 13 mm, its length, 38 mm, (approximates that of ACL);
- origin:
- PCL originates from the antero-lateral aspect of medial femoral condyle in the area of intercondylar notch;
- it origin is much more anterior than that of ACL;
- ref:
Topography of the Femoral Attachment of the Posterior Cruciate Ligament
- insetion:
- tibial atatchment is not intra articular, but over back of tibial platuea, it is approximately 1 cm distal to the joint line;
-
Tibial Insertion of the PCL: A Sagittal Plane Analysis Using Gross, Histologic, and Radiographic Methods
-
Morphology of the Tibial Insertion of the Posterior Cruciate Ligament
- subdivisions:
- ligament can be partially separated into an anterolateral and posteromedial;
-
anterolateral bundle:
- represents about 65% of the substance of the PCL;
- in flexion the anterolateral band is tight and the posteromedial band is lax;
- most surgeons seek to reconstruction the anterolateral portion of the PCL noting its larger size and more important functional role;
-
posteromedial bundle:
- comprimises 35% of the PCL;
- in extension the anterolateral band is lax and posteromedial band is tight;
- ref:
Changes in knee laxity and ligament force after sectioning the posteromedial bundle of the posterior cruciate ligament.
-
ligaments of Humphrey and Wrisberg:
- major blood supply: from middle
genicular artery;
- nerve supply:
tibial nerve (significant mechanoreceptors);
Current Concepts Review. Injuries of the Posterior Cruciate Ligament.
Limits of movement in the human knee. Effect of sectioning the posterior cruciate ligament and posterolateral structures.
The results of surgical repair of acute tears of the posterior cruciate ligament.
Treatment of knee joint instability secondary to rupture of the posterior cruciate ligament. Report of a new procedure.
Bone-block transfer of the medial head of the gastrocnemius for posterior cruciate insufficiency.
Acute tears of the posterior cruciate ligament. Results of operative treatment.
Posterior tibial subluxation of the posterior cruciate-deficient knee.
The effects of sectioning of the posterior cruciate ligament and the posterolateral complex on the articular contact pressures within the knee.
Long-term followup of posterior cruciate ligament rupture: a study of 116 cases.
A Biomechanical Study of Replacement of the PCL with a Graft. Part II: Forces in the Graft Compared with Forces in the Intact Liagment.
K.L. Markolf PH.D., J.R. Slauterbeck MD, K.L. Armstrong MD, M.S. Shapiro MD, and G.A.M. Finerman MD. JBJS. Vol. 79-A, No 3, March 1997. p 381.
Isolated posterior cruciate ligament injuries in athletes. PJ Fowler and SS Messieh. Am J. Sports Medicine. Vol 15. 1987. p 553-557.
The Attachments of the Fiber Bundles of the Posterior Cruciate Ligament: An Anatomic Study.
Anatomy of the posterior cruciate ligament. Van Dommelen BA, Fowler PJ: Am J Sports Med 1989;17:24-29.
Posterior Cruciate Ligament. A Demonstration in Six Patients and a Study of Anatomical Specimens.
Force displacement characteristics of the posterior cruciate ligament. BR Bach. et al. Am J. Sports Med. Vol 20. 1992. p 67-72.
Strain measurement of the human posterior cruciate ligament. SW Arms et al. Trans Orthop. Res. Soc. Vol 9. 1984. p 355.
Orientation of the cruciate ligament in the saggital plane: a method of predicting length change with flexion. J Bradley et al. JBJS Vol 70-B. 1988. p 94-99;
The cruciate ligaments of the knee joint: anatomical, functional and experimental analysis. FG Girgis et al. CORR. Vol 106. 1975. p 216-231.
Simultaneous measurement of changes in length of the cruciate ligaments during knee motion. H Kurosawa et al. CORR. Vol 265. 1991. p 223-240.
Factors affecting the region of most isometric femoral attachments. I: The PCL. ES Grood et al. Am J. Sports Med. Vol 17. 197-207. 1989.
Function of Posterior Cruciate Ligament Bundles During In Vivo Knee Flexion
