PURPOSE: Fenestration is the gold standard surgery for lumbar spinal canal stenosis in Japan. Several previous studies have analyzed the reoperation rates in large numbers of patients undergoing several surgical procedures such as laminectomy with or without instrumented spinal fusion; however, there have been few studies focusing solely on fenestration. The purpose of this study was to calculate the reoperation rates after fenestration using the survival function method. METHODS: Form 1988-2007, 6,998 surgeries for lumbar spinal canal stenosis occurred in Miyagi prefecture, Japan, and these patients were enrolled by the spinal surgery registration system of the Department of Orthopaedic Surgery, Tohoku University. Among these, 5,835 surgeries involved fenestration as a primary surgery and for those who underwent ≥2 lumbar surgeries we analyzed the reoperation rates using the Kaplan-Meier method. RESULTS: Among the 5,835 patients undergoing primary fenestration, 215 patients underwent 221 revisions; 112 included the same spinal levels and 103 were revised only at other levels as primary fenestration. The overall reoperation rates were 0.8% at 1 year, 2.9% at 5 years, 5.2% at 10 years, 7.5% at 15 years and 8.6% at >17.7 years. Reoperation rates for those at the same spinal levels were 0.6% at 1 year, 1.7% at 5 years, 2.7% at 10 years, 3.8% at 15 years, and 4.1% at >17.0 years. CONCLUSIONS: Fenestration can be performed at low cost using standard spinal surgery equipments. The reoperation rates of this procedure were lower than previously reported for several other surgical procedures.
PURPOSE: Fenestration is the gold standard surgery for lumbar spinal canal stenosis in Japan. Several previous studies have analyzed the reoperation rates in large numbers of patients undergoing several surgical procedures such as laminectomy with or without instrumented spinal fusion; however, there have been few studies focusing solely on fenestration. The purpose of this study was to calculate the reoperation rates after fenestration using the survival function method. METHODS: Form 1988-2007, 6,998 surgeries for lumbar spinal canal stenosis occurred in Miyagi prefecture, Japan, and these patients were enrolled by the spinal surgery registration system of the Department of Orthopaedic Surgery, Tohoku University. Among these, 5,835 surgeries involved fenestration as a primary surgery and for those who underwent ≥2 lumbar surgeries we analyzed the reoperation rates using the Kaplan-Meier method. RESULTS: Among the 5,835 patients undergoing primary fenestration, 215 patients underwent 221 revisions; 112 included the same spinal levels and 103 were revised only at other levels as primary fenestration. The overall reoperation rates were 0.8% at 1 year, 2.9% at 5 years, 5.2% at 10 years, 7.5% at 15 years and 8.6% at >17.7 years. Reoperation rates for those at the same spinal levels were 0.6% at 1 year, 1.7% at 5 years, 2.7% at 10 years, 3.8% at 15 years, and 4.1% at >17.0 years. CONCLUSIONS: Fenestration can be performed at low cost using standard spinal surgery equipments. The reoperation rates of this procedure were lower than previously reported for several other surgical procedures.
Authors: Brook I Martin; Sohail K Mirza; Bryan A Comstock; Darryl T Gray; William Kreuter; Richard A Deyo Journal: Spine (Phila Pa 1976) Date: 2007-02-01 Impact factor: 3.468
Authors: Steven J Atlas; Robert B Keller; Yen A Wu; Richard A Deyo; Daniel E Singer Journal: Spine (Phila Pa 1976) Date: 2005-04-15 Impact factor: 3.468
Authors: Darrel S Brodke; Prokopis Annis; Brandon D Lawrence; Ashley M Woodbury; Michael D Daubs Journal: Spine (Phila Pa 1976) Date: 2013-12-15 Impact factor: 3.468
Authors: Brook I Martin; Sohail K Mirza; Bryan A Comstock; Darryl T Gray; William Kreuter; Richard A Deyo Journal: Spine (Phila Pa 1976) Date: 2007-09-01 Impact factor: 3.468
Authors: Christian Barz; Markus Melloh; Lukas P Staub; Sarah J Lord; Harry R Merk; Thomas Barz Journal: Eur Spine J Date: 2017-02-04 Impact factor: 3.134
Authors: Zhao Lang; Jing-Sheng Li; Felix Yang; Yan Yu; Kamran Khan; Louis G Jenis; Thomas D Cha; James D Kang; Guoan Li Journal: Eur Spine J Date: 2018-06-28 Impact factor: 3.134
Authors: José C Pérez-López; Gerardo Olivella; Miguel Cartagena; Christian Nieves-Ríos; José Acosta-Julbe; Norman Ramírez; José Massanet-Volrath; José Montañez-Huertas; Enrique Escobar Journal: Eur J Orthop Surg Traumatol Date: 2021-09-22