title: [A feasibility research of unilateral incision minimally invasive transforaminal lumbar interbody fusion using pedicle screws and a translaminar screw hybrid fixation].
abstract: OBJECTIVE
  To investigate the feasibility and safety of unilateral incision hybrid fixation using pedicle screws and a translaminar screw in minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF).
  
  
  METHODS
  From January to June 2010, 18 patients with single-level lumbar disc disease were treated with MIS-TLIF under METRx(TM) X-tube. After decompression and fixation using unilateral pedicle screws, a translaminar screw was inserted from the same incision to the other side. The results of perioperative parameters, radiographic images and clinical outcomes were assessed.
  
  
  RESULTS
  All patients underwent MIS-TLIF were accomplished unilateral hybrid fixation without any neural complication. The average operative time was (107 ± 19) min, the average operative blood loss was (62 ± 21) ml, and the average postoperative ambulation time was (21 ± 5) h. The average length of translaminar facets screw was (52 ± 2) mm, and the postoperative images showed all screws penetrate through facets joint. During the follow-up the visual analogue scale and Oswestry disability index scores were significant improved compared with preoperative (F = 42.221 - 259.833, P < 0.01).
  
  
  CONCLUSIONS
  Bilateral hybrid fixation could be completed through unilateral incision by pedicle screws and a translaminar screw in MIS-TLIF, and the advantage including less invasion, quickly recovery, short operative time, and saving fixation cost.
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
authors.forename: Ke-ya
authors.initials: KY
authors.lastname: Mao
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.forename: Song-hua
authors.initials: SH
authors.lastname: Xiao
authors.forename: Yong-gang
authors.initials: YG
authors.lastname: Zhang
authors.forename: Bao-wei
authors.initials: BW
authors.lastname: Liu
authors.forename: Xi-feng
authors.initials: XF
authors.lastname: Zhang
authors.forename: Geng
authors.initials: G
authors.lastname: Cui
authors.forename: Xue-song
authors.initials: XS
authors.lastname: Zhang
authors.forename: Peng
authors.initials: P
authors.lastname: Li
authors.forename: Ke-zheng
authors.initials: KZ
authors.lastname: Mao
mesh_terms: D000328:Adult; D001863:Bone Screws; D005240:Feasibility Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008159:Lumbar Vertebrae / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures; D013123:Spinal Fusion / Q000379:methods*; D016896:Treatment Outcome; D064232:Visual Analog Scale; D055815:Young Adult