title: Reduction and retention of thoracolumbar fractures by minimally invasive stabilisation versus open posterior instrumentation.
abstract: OBJECTIVE
  The purpose of this study was in thoracolumbar fractures to assess the effectiveness of minimal invasive stabilisation compared to the open technique with regards to the change in kyphosis angle, the loss of reduction and length of hospital stay.
  
  
  METHODS
  The retrospective study consisted of 104 patients who received minimally invasive stabilisation or open stabilisation. Patients were between 15 and 86 years of age, had a thoracolumbar fracture and no neurological deficits. Kyphotic angle (Cobb angle) and loss of reduction was compared after minimal invasive and open stabilisation. The Cobb angle was evaluated directly post operatively, at 6 weeks, 3 months, 6 months and 12 months after surgery.
  
  
  RESULTS
  Evaluated patients who received the minimally invasive technique had a shorter surgical intervention time and a shorter hospital stay compared to patients who received the open technique. Kyphosis angle and loss of reduction showed no significant difference compared to open technique. There was also no significant difference between minimally invasive poly-axial and mono-axial stabilisation.
  
  
  CONCLUSIONS
  In this study we provide evidence that MIS instrumentation in selected thoracolumbar fractures can effectively be used without significant differences in loss of reduction compared to open stabilisation. MIS can also sufficiently retain reduction as compared to traditional open techniques. The main advantages are reduced operation time and shorter hospital stay.
authors.affiliation: Department of Trauma Surgery, University Medical Center Schleswig-Holstein, Kiel Campus, Germany. Electronic address: stefanie.oestern@uksh-kiel.de.
authors.forename: Stefanie
authors.initials: S
authors.lastname: Fitschen-Oestern
authors.affiliation: Department of Trauma Surgery, University Medical Center Schleswig-Holstein, Kiel Campus, Germany.
authors.forename: Florian
authors.initials: F
authors.lastname: Scheuerlein
authors.affiliation: Department of Trauma Surgery, University Medical Center Schleswig-Holstein, Kiel Campus, Germany.
authors.forename: Matthias
authors.initials: M
authors.lastname: Weuster
authors.affiliation: Department of Trauma Surgery, University Medical Center Schleswig-Holstein, Kiel Campus, Germany.
authors.forename: Tim
authors.initials: T
authors.lastname: Klueter
authors.affiliation: Department of Trauma Surgery, University Medical Center Schleswig-Holstein, Kiel Campus, Germany.
authors.forename: Leif
authors.initials: L
authors.lastname: Menzdorf
authors.affiliation: Department of Trauma Surgery, University Medical Center Schleswig-Holstein, Kiel Campus, Germany.
authors.forename: Deike
authors.initials: D
authors.lastname: Varoga
authors.affiliation: Department of Radiology, University Medical Center Schleswig-Holstein, Kiel Campus, Germany.
authors.forename: Christoph
authors.initials: C
authors.lastname: Kopetsch
authors.affiliation: Department of Trauma Surgery, University Medical Center Schleswig-Holstein, Kiel Campus, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Mueller
authors.affiliation: Department of Spinal Surgery, Division of Orthopaedic Spine Surgery, University of Namibia, Windhoek, Namibia.
authors.forename: Alex
authors.initials: A
authors.lastname: van der Horst
authors.affiliation: Department of Trauma Surgery, University Medical Center Schleswig-Holstein, Kiel Campus, Germany.
authors.forename: Andreas
authors.initials: A
authors.lastname: Seekamp
authors.affiliation: Department of Trauma Surgery, University Medical Center Schleswig-Holstein, Kiel Campus, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Behrendt
authors.affiliation: Department of Trauma Surgery, University Medical Center Schleswig-Holstein, Kiel Campus, Germany.
authors.forename: Sebastian
authors.initials: S
authors.lastname: Lippross
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005593:Fracture Fixation, Internal / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D007738:Kyphosis / Q000517:prevention & control* / Q000601:surgery; D007902:Length of Stay; D008159:Lumbar Vertebrae / Q000293:injuries / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures; D011183:Postoperative Complications / Q000601:surgery*; D012189:Retrospective Studies; D016103:Spinal Fractures / Q000503:physiopathology / Q000601:surgery*; D013904:Thoracic Vertebrae / Q000293:injuries / Q000601:surgery*; D016896:Treatment Outcome
keywords: Cobb angle; minimally invasive spine surgery; open stabilization; thoracolumbar fractures