English
norskBlar i forfatter "Lønne, Greger"
Viser treff 1-9 av 9
-
Accuracy and agreement of national spine register data for 474 patients compared to corresponding electronic patient records
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-06)Purpose - Data quality is essential for all types of research, including health registers. However, data quality is rarely reported. We aimed to assess the accuracy of data in a national spine register (NORspine) and its agreement with corresponding data in electronic patient records (EPR).<p> <p>Methods - We compared data in NORspine registry against data in (EPR) for 474 patients operated for ... -
Can a Successful Outcome After Surgery for Lumbar Disc Herniation Be Defined by the Oswestry Disability Index Raw Score?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-06)<i>Study Design</i>: Prospective multicenter cohort study.<p><p> <i>Objective</i>: To investigate (1) the discriminative ability and cutoff estimates for success 12 months after surgery for lumbar disc herniation on the Oswestry Disability Index (ODI) raw score compared with a change and a percentage change score and (2) to what extent these clinical outcomes depend on the baseline disability.< ... -
Characteristics and outcomes of patients who did not respond to a national spine surgery registry
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-04)Background Loss to follow-up may bias outcome assessments in medical registries. This cohort study aimed to analyze and compare patients who failed to respond with those that responded to the Norwegian Registry for Spine Surgery (NORspine).<p> <p>Methods We analyzed a cohort of 474 consecutive patients operated for lumbar spinal stenosis at four public hospitals in Norway during a two-year period. ... -
Criteria for failure and worsening after surgery for lumbar disc herniation: a multicenter observational study based on data from the Norwegian Registry for Spine Surgery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-14)PURPOSE: In clinical decision-making, it is crucial to discuss the probability of adverse outcomes with the patient. A large proportion of the outcomes are difficult to classify as either failure or success. Consequently, cutoff values in patient-reported outcome measures (PROMs) for "failure" and "worsening" are likely to be different from those of "non-success". The aim of this study was to identify ... -
Decompression alone versus decompression with instrumental fusion the NORDSTEN degenerative spondylolisthesis trial (NORDSTEN-DS); study protocol for a randomized controlled trial
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-05)<p><i>Background - </i>Fusion in addition to decompression has become the standard treatment for lumbar spinal stenosis with degenerative spondylolisthesis (DS). The evidence for performing fusion among these patients is conflicting and there is a need for further investigation through studies of high quality. The present protocol describes an ongoing study with the primary aim of comparing the ... -
Effectiveness of surgery for sciatica with disc herniation is not substantially affected by differences in surgical incidences among three countries: results from the Danish, Swedish and Norwegian spine registries
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-29)Purpose Yearly incidence of surgery for symptomatic lumbar disc herniation varies and is 29/100,000 in Sweden, 46/100,000 in Denmark and 58/100,000 in Norway. This variation was used to study whether diferences in surgical incidence were associated with diferences in preoperative patient characteristics as well as patient-reported outcomes.<p> Methods Data from the national spine registers in ... -
Impact of the number of previous lumbar operations on patient-reported outcomes after surgery for lumbar spinal stenosis or lumbar disc herniation
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-15)Aims - Repeated lumbar spine surgery has been associated with inferior clinical outcomes. This study aimed to examine and quantify the impact of this association in a national clinical register cohort.<p> <p>Methods - This is a population-based study from the Norwegian Registry for Spine surgery (NORspine). We included 26,723 consecutive cases operated for lumbar spinal stenosis or lumbar disc ... -
The Norwegian registry for spine surgery (NORspine): cohort profile
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-17)Purpose - To review and describe the development, methods and cohort of the lumbosacral part of the Norwegian registry for spine surgery (NORspine).<p> <p>Methods - NORspine was established in 2007. It is government funded, covers all providers and captures consecutive cases undergoing operations for degenerative disorders. Patients’ participation is voluntary and requires informed consent. A set ... -
Surgical Treatment of Degenerative Disk Disease in Three Scandinavian Countries: An International Register Study Based on Three Merged National Spine Registers
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-25)<i>Study Design</i>: Observational study of prospectively collected data.<p> <p><i>Objectives</i>: Patients with chronic low back pain resistant to nonoperative treatment often face a poor prognosis for recovery. The aim of the current study was to compare the variation and outcome of surgical treatment of degenerative disc disease in the Scandinavian countries based on The International Consortium ...
