title: Skip laminectomy and laminoplasty for cervical spondylotic myelopathy: a prospective study of clinical and radiologic outcomes.
abstract: METHODS
  A prospective nonrandomized study comparing the outcomes of the 2 surgical techniques used in the treatment of cervical spondylotic myelopathy.
  
  
  OBJECTIVE
  We prospectively compared the skip laminectomy and laminoplasty in terms of extent of decompression achieved, axial pain, postoperative range of cervical motion, and patient and surgical outcomes.
  
  
  BACKGROUND
  Laminoplasty is an established procedure for the decompression of multisegmental cervical compressive myelopathy. However, it often induces postoperative problems, such as axial pain, restriction of neck motion, and loss of lordotic alignment. Skip laminectomy was recently developed as a minimally invasive procedure.
  
  
  METHODS
  We studied 50 consecutive patients operated on for cervical spondylotic myelopathy and spinal cord compression as demonstrated on magnetic resonance imaging (MRI) between the levels C3-4 and C6-7. Each patient had a minimum follow-up of 2 years (2.2 to 4.3 y). Twenty-five patients underwent skip laminectomy and 25 patients underwent laminoplasty. Decompression was assessed by preoperative and postoperative MRI. Cervical range of motion was assessed by preoperative and postoperative flexion and extension radiographs. Patient outcomes were assessed by evaluation of preoperative and postoperative neurology and SF12 scores for mental health, physical health, and axial pain.
  
  
  RESULTS
  Less blood loss and operative times with skip laminectomy. Similar degrees of decompression with both techniques. Significantly improved axial pain scores with skip laminectomy. Significantly improved preservation of range of movement with skip laminectomy.
  
  
  CONCLUSIONS
  Skip laminectomy is an effective procedure for reducing the incidence of postoperative morbidities, such as persisting axial pain, and restriction of neck motion often seen after laminoplasty, and provides adequate decompression of the spinal cord as demonstrated on MRI for a minimum follow-up of 2 years.
authors.affiliation: Royal National Orthopaedic Hospital, Stanmore, London, UK.
authors.forename: Alagappan
authors.initials: A
authors.lastname: Sivaraman
authors.forename: Arup K
authors.initials: AK
authors.lastname: Bhadra
authors.forename: Farhaan
authors.initials: F
authors.lastname: Altaf
authors.forename: Anoushka
authors.initials: A
authors.lastname: Singh
authors.forename: Amarjit
authors.initials: A
authors.lastname: Rai
authors.forename: Adrian T
authors.initials: AT
authors.lastname: Casey
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Crawford
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001178:Arthroplasty / Q000379:methods* / Q000706:statistics & numerical data; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D019299:Decompression, Surgical / Q000379:methods* / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000503:physiopathology / Q000517:prevention & control / Q000601:surgery; D007796:Laminectomy / Q000379:methods* / Q000706:statistics & numerical data; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D019547:Neck Pain / Q000503:physiopathology / Q000517:prevention & control / Q000601:surgery; D017063:Outcome Assessment, Health Care / Q000379:methods*; D011183:Postoperative Complications / Q000209:etiology / Q000517:prevention & control; D011446:Prospective Studies; D011859:Radiography; D016059:Range of Motion, Articular / Q000502:physiology; D013117:Spinal Cord Compression / Q000209:etiology / Q000601:surgery*; D013123:Spinal Fusion / Q000379:methods / Q000706:statistics & numerical data; D055009:Spondylosis / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*