title: SB Charité disc replacement: report of 60 prospective randomized cases in a US center.
abstract: Sixty patients with one-level discogenic pain confirmed by plain radiography, magnetic resonance imaging, and provocative discography for degenerative disc disease were randomized: one-third BAK anterior interbody fusion and two-thirds anterior SB Charité artificial disc replacement. The mean age was 40.3 years (range 21-56 years). Nineteen cases were at L4-L5 and 41 cases were at L5-S1. Nineteen cases had BAK anterior interbody fusion and 41 cases were randomized as SB Charité disc replacement. The length of surgery was mean 88.4 minutes (range 54-137 minutes) for both groups. The estimated blood loss was mean 289.5 mL (range 50-1800 mL). The length of hospital stay was a mean of 3.03 days (range 2-6 days). Oswestry Disability Index scores for the SB Charité disc (aggregate study group) were 50.0 +/- 14.3 preoperatively and 25.0 +/- 20.1 at 1-3 years' follow-up (P < 0.001). This is the first study that shows improvement of functional outcome measures in a prospective randomized design with disc arthroplasty treating primarily mechanical back pain and achieving comparable successful results to lumbar fusion-interbody fusion cage and BMP or interbody autograft and pedicle screw instrumentation.
authors.affiliation: Spine and Scoliosis Center, St Joseph's Hospital, Baltimore, Maryland 21204, USA. mack8132@aol.com
authors.forename: Paul C
authors.initials: PC
authors.lastname: McAfee
authors.forename: Ira L
authors.initials: IL
authors.lastname: Fedder
authors.forename: Samer
authors.initials: S
authors.lastname: Saiedy
authors.forename: Erin M
authors.initials: EM
authors.lastname: Shucosky
authors.forename: Bryan W
authors.initials: BW
authors.lastname: Cunningham
mesh_terms: D000328:Adult; D019643:Arthroplasty, Replacement / Q000295:instrumentation* / Q000379:methods; D001416:Back Pain / Q000175:diagnosis / Q000209:etiology / Q000601:surgery; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000150:complications / Q000175:diagnosis* / Q000601:surgery*; D007595:Joint Prosthesis; D008159:Lumbar Vertebrae / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement / Q000379:methods; D013123:Spinal Fusion / Q000379:methods; D013128:Spinal Osteophytosis / Q000150:complications / Q000175:diagnosis* / Q000601:surgery*; D016896:Treatment Outcome