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PMID- 28894678
DA  - 20170912
LR  - 20170914
IS  - 2192-5682 (Print)
IS  - 2192-5682 (Linking)
VI  - 7
IP  - 6
DP  - 2017 Sep
TI  - Radiographic Risk Factors of Reoperation Following Minimally Invasive
      Decompression for Lumbar Canal Stenosis Associated With Degenerative Scoliosis
      and Spondylolisthesis.
PG  - 498-505
LID - 10.1177/2192568217699192 [doi]
AB  - STUDY DESIGN: Prospective cohort study. OBJECTIVE: Microsurgical bilateral
      decompression via a unilateral approach (MBDU), a minimally invasive surgical
      (MIS) decompression method, has been performed for numerous degenerative lumbar
      diseases, including degenerative lumbar scoliosis (DLS) or degenerative
      spondylolisthesis (DS), at our institution. In this study, we evaluated the
      appropriateness of MBDU for DLS or DS patients. METHODS: A total of 207 patients 
      treated by MBDU were included (88 women and 119 men; mean age, 70 [40-86] years).
      Thirty-seven cases were diagnosed as DLS (group A), 51 as DS (group B), and 119
      as lumbar canal stenosis (group C). Patient clinical status assessed by JOA score
      was evaluated preoperatively and 2 years postoperatively. We evaluated the
      prevalence of cases that required reoperation among the groups and the
      radiographic risk factors related to reoperation. RESULTS: There was no
      significant difference in recovery ratios of JOA scores among the groups.
      Reoperation after MBDU was needed in 13 cases (6.3%); the revision rate did not
      significantly differ among the groups. Reoperation was associated with poor
      clinical status, low visual analog scale score for low back pain, and low SF-36
      mental component summary score. Reoperation was significantly associated with
      preoperative scoliotic disc wedging with Cobb's angle >/=3 degrees in L4-5 (odds 
      ratio = 9.88) and lateral listhesis (odds ratio = 5.22 [total], 12.9 [L4-5]).
      CONCLUSIONS: When we are careful to indicate decompression for patients with
      these risk factors related to reoperation, MIS decompression alone can
      successfully improve DLS patients with a Cobb's angle of </=20 degrees or DS
FAU - Kato, Minori
AU  - Kato M
AD  - Osaka City General Hospital, Osaka, Japan.
FAU - Namikawa, Takashi
AU  - Namikawa T
AD  - Osaka City General Hospital, Osaka, Japan.
FAU - Matsumura, Akira
AU  - Matsumura A
AD  - Osaka City General Hospital, Osaka, Japan.
FAU - Konishi, Sadahiko
AU  - Konishi S
AD  - Osaka General Hospital of West Japan Railway Company, Osaka, Japan.
FAU - Nakamura, Hiroaki
AU  - Nakamura H
AD  - Osaka City University, Osaka, Japan.
LA  - eng
PT  - Journal Article
DEP - 20170407
PL  - England
TA  - Global Spine J
JT  - Global spine journal
JID - 101596156
PMC - PMC5582707
OT  - degenerative lumbar scoliosis
OT  - degenerative spondylolisthesis
OT  - health-related quality of life
OT  - lateral listhesis
OT  - lumbar spine
OT  - minimally invasive surgery
COI - Declaration of Conflicting Interests: The author(s) declared no potential
      conflicts of interest with respect to the research, authorship, and/or
      publication of this article.
EDAT- 2017/09/13 06:00
MHDA- 2017/09/13 06:01
CRDT- 2017/09/13 06:00
AID - 10.1177/2192568217699192 [doi]
AID - 10.1177_2192568217699192 [pii]
PST - ppublish
SO  - Global Spine J. 2017 Sep;7(6):498-505. doi: 10.1177/2192568217699192. Epub 2017
      Apr 7.