title: [Anatomic features of posterior septum of knee joint and its application in posterior trans-septal portal for arthroscopic surgery].
abstract: OBJECTIVE
  To summarize the anatomic features of the posterior septum of the knee joint and its application in posterior trans-septal portal for arthroscopic surgery.
  
  
  METHODS
  The literature related to posterior septum of the knee joint and arthroscopic surgery was extensively reviewed and analyzed.
  
  
  RESULTS
  The posterior septum of the knee joint has more mechanoreceptors and blood vessels in the upper part, which are close to arteria popliteal at the tibial plateau level; the posterior compartment is divided into wider posteromedial and narrower posterolateral compartments. A safe arthroscopic trans-septal portal is established, in the knee flexion of 90 degrees, in a lateral-to-medial direction, and with an inserting location below the middle of posterior septum.
  
  
  CONCLUSIONS
  The establishment method of posterior trans-septal portal is not uniform and all the features of posterior septum should be considered to decrease the complications.
authors.affiliation: Department of Orthopedics, Xiangya Hospital, Central-South University, Changsha Hunan, 410008, P.R.China.
authors.forename: Jinpeng
authors.initials: J
authors.lastname: Sun
authors.forename: Yilin
authors.initials: Y
authors.lastname: Xiong
authors.forename: Guanghua
authors.initials: G
authors.lastname: Lei
mesh_terms: D001182:Arthroscopy / Q000379:methods*; D006801:Humans; D017746:Joint Capsule / Q000033:anatomy & histology* / Q000098:blood supply; D007718:Knee Injuries / Q000601:surgery; D007719:Knee Joint / Q000033:anatomy & histology* / Q000098:blood supply / Q000601:surgery; D011150:Popliteal Artery / Q000033:anatomy & histology / Q000293:injuries*; D016119:Posterior Cruciate Ligament / Q000033:anatomy & histology* / Q000098:blood supply / Q000601:surgery; D011183:Postoperative Complications / Q000209:etiology / Q000517:prevention & control; D011187:Posture