Abstract:
OBJECTIVES:Pedicle-lengthening osteotomy is a novel surgery for lumbar spinal stenosis (LSS), which achieves substantial enlargement of the spinal canal by expansion of the bilateral pedicle osteotomy sites. Few studies have evaluated the impact of this new surgery on spinal canal volume (SCV) and neural foramen dimension (NFD) in three different types of LSS patients. METHODS:CT scans were performed on 36 LSS patients (12 central canal stenosis (CCS), 12 lateral recess stenosis (LRS), and 12 foraminal stenosis (FS)) at L4-L5, and on 12 normal (control) subjects. Mimics 14.01 workstation was used to reconstruct 3D models of the L4-L5 vertebrae and discs. SCV and NFD were measured after 1 mm, 2 mm, 3 mm, 4 mm, or 5 mm pedicle-lengthening osteotomies at L4 and/or L5. One-way analysis of variance was used to examine between-group differences. RESULTS:In the intact state, SVC and NFD were significantly larger in the control group compared with the LSS groups (P<0.05). After lengthening at L4, the percentage increase in SCV (per millimetre) was LRS>CCS>FS>Control. After lengthening at L5 and L4-L5, the percentage increase in SCV (per millimetre) was LRS>FS>CCS>Control. After lengthening at L4 and L4-L5, the percentage increase in NFD (per millimetre) was FS>CCS>LRS>Control. After lengthening at L5, the percentage increase in NFD (per millimetre) was CCS>LRS>control>FS. CONCLUSIONS:LRS patients are the most suitable candidates for treatment with pedicle-lengthening osteotomy. Lengthening L4 pedicles produced larger percentage increases in NFD than lengthening L5 pedicles (p < 0.05). Lengthening L4 pedicles may be the most effective option for relieving foraminal compression in LSS patients.Cite this article: P. Li, L. Qian, W. D. Wu, C. F. Wu, J. Ouyang. Impact of pedicle-lengthening osteotomy on spinal canal volume and neural foramen size in three types of lumbar spinal stenosis. Bone Joint Res 2016;5:239-246. DOI: 10.1302/2046-3758.56.2000469.
journal_name
Bone Joint Resjournal_title
Bone & joint researchauthors
Li P,Qian L,Wu WD,Wu CF,Ouyang Jdoi
10.1302/2046-3758.56.2000469subject
Has Abstractpub_date
2016-06-01 00:00:00pages
239-46issue
6issn
2046-3758pii
5/6/239journal_volume
5pub_type
杂志文章abstract:OBJECTIVES:To study the measurement properties of a joint specific patient reported outcome measure, a measure of capability and a general health-related quality of life (HRQOL) tool in a large cohort of patients with a hip fracture. METHODS:Responsiveness and associations between the Oxford Hip Score (a hip specific ...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.33.2000250
更新日期:2014-03-19 00:00:00
abstract:Objectives:The primary stability of the cementless Oxford Unicompartmental Knee Replacement (OUKR) relies on interference fit (or press fit). Insufficient interference may cause implant loosening, whilst excessive interference could cause bone damage and fracture.The aim of this study was to identify the optimal interf...
journal_title:Bone & joint research
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abstract:OBJECTIVES:Evidence -based medicine (EBM) is designed to inform clinical decision-making within all medical specialties, including orthopaedic surgery. We recently published a pilot survey of the Canadian Orthopaedic Association (COA) membership and demonstrated that the adoption of EBM principles is variable among Can...
journal_title:Bone & joint research
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doi:10.1302/2046-3758.54.2000578
更新日期:2016-04-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.910.BJR-2020-0140.R1
更新日期:2020-10-01 00:00:00
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journal_title:Bone & joint research
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doi:10.1302/2046-3758.83.BJR-2018-0049.R1
更新日期:2019-04-02 00:00:00
abstract::Chondrocyte hypertrophy represents a crucial turning point during endochondral bone development. This process is tightly regulated by various factors, constituting a regulatory network that maintains normal bone development. Histone deacetylase 4 (HDAC4) is the most well-characterized member of the HDAC class IIa fami...
journal_title:Bone & joint research
pub_type: 杂志文章,评审
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更新日期:2020-05-16 00:00:00
abstract:OBJECTIVES:To investigate the differences of open reduction and internal fixation (ORIF) of complex AO Type C distal radius fractures between two different models of a single implant type. METHODS:A total of 136 patients who received either a 2.4 mm (n = 61) or 3.5 mm (n = 75) distal radius locking compression plate (...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.16.2000008
更新日期:2012-06-01 00:00:00
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journal_title:Bone & joint research
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doi:10.1302/2046-3758.82.BJR-2018-0174.R2
更新日期:2019-03-02 00:00:00
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journal_title:Bone & joint research
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更新日期:2017-10-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.211.2000206
更新日期:2013-11-27 00:00:00
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journal_title:Bone & joint research
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doi:10.1302/2046-3758.78.BJR-2017-0343.R2
更新日期:2018-09-15 00:00:00
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journal_title:Bone & joint research
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更新日期:2017-05-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.45.2000292
更新日期:2015-05-01 00:00:00
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更新日期:2019-12-03 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.29.2000179
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journal_title:Bone & joint research
pub_type: 杂志文章
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更新日期:2020-08-02 00:00:00
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journal_title:Bone & joint research
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更新日期:2013-09-10 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
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更新日期:2020-07-23 00:00:00
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更新日期:2020-01-08 00:00:00
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更新日期:2013-09-16 00:00:00
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更新日期:2021-01-01 00:00:00
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更新日期:2019-11-02 00:00:00
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更新日期:2018-05-05 00:00:00