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· DOS Abstracts
Clinical outcome after decompression surgery for
lumbar spinal stenosis
Rune Tendal Paulsen, Mikkel Østerheden Andersen, Leah Carreon, Jamal Bech
Bouknaitir, Søren Fruensgaard
Center for spine surgery and research, Middelfart; Center for spine surgery
and research, Middelfart; Center for spine surgery and research, Middelfart;
Ortopædkirugisk afdeling, Køge; Ortopædkirurgisk afdeling , Silkeborg
Background:
Lumbar spinal stenosis (LSS) is a clinical syndrome of buttock or
lower extremity pain, which may occur with or without back pain, associated
with diminished space available for the neural and vascular elements in the lum-
bar spine. LSS is typically seen in elderly patients, with prevalence estimated to
be 47% in people over the age 60. LSS is the most common reason for spine
surgery in Denmark and the number of surgical procedures is likely to increase
due to demographic changes.
Purpose / Aim of Study:
The purpose of this study was to evaluate the pa-
tient reported outcomes and perioperative complications of spinal decompres-
sion surgery in patients with LSS.
Materials and Methods:
This study is a retrospective study of prospectively
collected data from 3420 consecutive patients with clinical and MRI confirmed
LSS. Patients were treated with posterior decompression surgery between 2009
and 2014 at three regional centers in Denmark. Patients treated with concomi-
tant fusion were excluded. Data were obtained from the DaneSpine register and
collected pre- and postoperative after at least one year. Outcome measures
were ODI, EQ-5D, VAS, MCS, PCS and self- reported walking distance.
Findings / Results:
Of 3420 cases enrolled, 2591 (75%) had complete data
after at least one year Mean ODI scores were 39,8 and improved to 24,0. Mean
EQ-5D score was 0,40 and improved to 0,66. Mean VAS-leg improved from
54 to 36. Mean VAS-back improved from 46 to 34. Mean MCS improved from
28 to 36. Mean PCS improved from 40 to 45. All comparisons were statistically
significant with p-values of 0,0000
Conclusions:
Decompression surgery improved all patient-reported outcome
measures (ODI, EQ5D, MCS, PCS, VAS and walking distance). Improvements
were all of statistical and clinical relevance.
No conflicts of interest reported
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