PMID- 31302266
OWN - NLM
STAT- MEDLINE
DCOM- 20200506
LR  - 20200506
IS  - 1878-1632 (Electronic)
IS  - 1529-9430 (Linking)
VI  - 19
IP  - 11
DP  - 2019 Nov
TI  - Predictors of walking ability after surgery for lumbar spinal canal stenosis: a 
      prospective study.
PG  - 1824-1831
LID - S1529-9430(19)30845-9 [pii]
LID - 10.1016/j.spinee.2019.07.002 [doi]
AB  - BACKGROUND CONTEXT: Few studies have investigated predictors of objective walking 
      distance in patients with lumbar spinal stenosis (LSS). PURPOSE: This study aimed 
      to clarify objective predictors of postoperative 6-minute walk distance (6MWD) in 
      patients with LSS and to develop prediction equations. STUDY DESIGN: This was a 
      prospective study. Data were analyzed by multiple linear regression analyses. 
      PATIENT SAMPLE: Patients with LSS were enrolled. OUTCOME MEASURES: Predictors of 
      6MWD after surgery were evaluated, including patient characteristics (sex, age, 
      height, and body weight), pain (visual analog scale; low back pain, lower limb 
      pain, and lower limb numbness), surgical factors (number of operation segments [1 
      or >/=2], surgery type [fusion or decompression], and minimum area of the dural 
      sac), and objective physical function (6MWD and trunk muscle strength). METHODS: 
      Patients with LSS were consecutively included and assessed preoperatively (n=113) 
      and 6 months postoperatively (n=78). Simple and multiple linear regression 
      analyses were performed with 6MWD at 6 months postoperation as the dependent 
      variable. We have study funding sources (Nagono Medical Foundation) and no 
      study-specific conflicts of interest-associated biases. RESULTS: At 6-month 
      follow-up, 6MWD (457.7+/-105.5 m) improved significantly compared with preoperative 
      6MWD (275.0+/-157.2 m; p<.01). Trunk muscle strength and pain improved 
      significantly compared with the preoperative score (p<.01). The predictors of 
      postoperative 6MWD were age, body weight, number of operation segments (1 or >/=2), 
      surgery type (fusion or decompression), preoperative trunk extensor strength, and 
      preoperative 6MWD (adjusted R(2)=0.65, p<.01). The proposed prediction equation 
      was as follows: postoperative 6MWD (m)=549.5-5.3xage (years)-1.8xbody weight 
      (kg)-68.3xsurgery type (0: decompression, 1: fusion)-58.6xoperation segment (0: 
      one segment, 1: >/=2 segments)+3.5xtrunk extensor strength (kg)+0.2xpreoperative 
      6MWD (m). CONCLUSIONS: Younger age, lower body weight, one level operative 
      segment, decompression surgery, and better preoperative scores for trunk extensor 
      strength and 6MWD predicted better scores for 6 months postoperative 6MWD. 
      Preoperative reduction in body weight and increase of trunk extensor strength 
      might be associated with improved postoperative 6MWD scores.
CI  - Copyright (c) 2019 Elsevier Inc. All rights reserved.
FAU - Takenaka, Hiroto
AU  - Takenaka H
AD  - Department of Rehabilitation, Asahi Hospital, 2090 Higashino-cho, Kasugai, Aichi 
      486-0819, Japan; Department of Physical and Occupational Therapy, Nagoya 
      University Graduate School of Medicine, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, 
      Aichi 461-8673, Japan. Electronic address: hiroto.takenaka@gmail.com.
FAU - Sugiura, Hideshi
AU  - Sugiura H
AD  - Department of Physical and Occupational Therapy, Nagoya University Graduate 
      School of Medicine, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, Aichi 461-8673, 
      Japan.
FAU - Kamiya, Mitsuhiro
AU  - Kamiya M
AD  - Department of Orthopedic Surgery, Asahi Hospital, 2090 Higashino-cho, Kasugai, 
      Aichi 486-0819, Japan.
FAU - Nishihama, Kasuri
AU  - Nishihama K
AD  - Department of Rehabilitation, Asahi Hospital, 2090 Higashino-cho, Kasugai, Aichi 
      486-0819, Japan.
FAU - Ito, Atsuki
AU  - Ito A
AD  - Department of Rehabilitation, Asahi Hospital, 2090 Higashino-cho, Kasugai, Aichi 
      486-0819, Japan.
FAU - Suzuki, Junya
AU  - Suzuki J
AD  - Department of Rehabilitation, Asahi Hospital, 2090 Higashino-cho, Kasugai, Aichi 
      486-0819, Japan.
FAU - Kawamura, Morio
AU  - Kawamura M
AD  - Department of Physical Therapy, College of Life and Health Sciences, Chubu 
      University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan.
FAU - Hanamura, Shuntaro
AU  - Hanamura S
AD  - Department of Orthopedic Surgery, Asahi Hospital, 2090 Higashino-cho, Kasugai, 
      Aichi 486-0819, Japan.
FAU - Hanamura, Hirokatsu
AU  - Hanamura H
AD  - Department of Orthopedic Surgery, Asahi Hospital, 2090 Higashino-cho, Kasugai, 
      Aichi 486-0819, Japan.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20190711
PL  - United States
TA  - Spine J
JT  - The spine journal : official journal of the North American Spine Society
JID - 101130732
SB  - IM
MH  - Age Factors
MH  - Aged
MH  - Body Height
MH  - Body Weight
MH  - Decompression, Surgical
MH  - Female
MH  - Follow-Up Studies
MH  - Humans
MH  - Hypesthesia/etiology
MH  - Lumbar Vertebrae/*surgery
MH  - Male
MH  - Middle Aged
MH  - Pain/etiology/surgery
MH  - Prospective Studies
MH  - Sex Factors
MH  - Spinal Fusion
MH  - Spinal Stenosis/complications/physiopathology/*surgery
MH  - Visual Analog Scale
MH  - *Walking
OTO - NOTNLM
OT  - 6-minute walk distance
OT  - Decompression
OT  - Lumbar fusion
OT  - Lumbar spinal canal stenosis
OT  - Prognostic indicator
OT  - Walking ability
EDAT- 2019/07/16 06:00
MHDA- 2020/05/07 06:00
CRDT- 2019/07/15 06:00
PHST- 2019/02/16 00:00 [received]
PHST- 2019/06/30 00:00 [revised]
PHST- 2019/07/09 00:00 [accepted]
PHST- 2019/07/16 06:00 [pubmed]
PHST- 2020/05/07 06:00 [medline]
PHST- 2019/07/15 06:00 [entrez]
AID - S1529-9430(19)30845-9 [pii]
AID - 10.1016/j.spinee.2019.07.002 [doi]
PST - ppublish
SO  - Spine J. 2019 Nov;19(11):1824-1831. doi: 10.1016/j.spinee.2019.07.002. Epub 2019 
      Jul 11.