| Title |
Proximal junctional kyphosis in adult spinal deformity: a novel predictive index
|
|---|---|
| Published in |
European Spine Journal, March 2018
|
| DOI | 10.1007/s00586-018-5514-3 |
| Pubmed ID | |
| Authors |
Jian Zhao, Mingyuan Yang, Yilin Yang, Xin Yin, Changwei Yang, Li Li, Ming Li |
| Abstract |
Proximal junctional kyphosis (PJK) is a devastating complication for adult spinal deformity (ASD) after correction surgery. However, there is no consensus on the risk factors of PJK, and whether it can be predicted remains unknown. The aim of this study is to detect the primary risk factors for PJK in ASD, and introduce a novel index for prediction of PJK. Medical records of 62 ASD patients receiving correction surgery from January 2010 to January 2015 were analyzed. Spino-pelvic parameters were evaluated on lateral films before surgery, at 2 weeks' and at follow-up. Primary factors for PJK were evaluated. PJK index was proposed and verified. Cervical lordosis at follow-up, postoperative C2-C7 SVA, C2-C7 SVA at follow-up, postoperative T1 slope, T1 slope at follow-up, preoperative TLK, LL at follow-up, preoperative PT, postoperative PT, PT at follow-up, preoperative SS, postoperative SS, SS at follow-up, preoperative PT/SS, postoperative PT/SS and PT/SS at follow-up were significantly different between ASD with and without PJK. Adjusted logistic regression analysis showed that preoperative TLK, LL at follow-up, preoperative PT/SS and PT/SS at follow-up were primary factors for PJK. PJK index was defined as 0.160*LL at follow-up-0.121*preoperative TLK-4.625*preoperative PT/SS-3.315*PT/SS at follow-up. On the basis of ROC curve, if PJK index was smaller and larger than - 2, the occurrence rate of PJK and non-PJK was 82 and 95%, respectively. Preoperative TLK, LL at follow-up, preoperative PT/SS and PT/SS at follow-up were primary factors for PJK. PJK index could be used to predict occurrence of PJK effectively. These slides can be retrieved under Electronic Supplementary Material. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| France | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 23 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 23 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 4 | 17% |
| Student > Doctoral Student | 2 | 9% |
| Student > Postgraduate | 2 | 9% |
| Professor > Associate Professor | 2 | 9% |
| Student > Master | 2 | 9% |
| Other | 4 | 17% |
| Unknown | 7 | 30% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 10 | 43% |
| Psychology | 2 | 9% |
| Agricultural and Biological Sciences | 1 | 4% |
| Neuroscience | 1 | 4% |
| Unspecified | 1 | 4% |
| Other | 0 | 0% |
| Unknown | 8 | 35% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 05 March 2018.
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#18,589,103
of 23,025,074 outputs
Outputs from European Spine Journal
#2,504
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#258,042
of 332,016 outputs
Outputs of similar age from European Spine Journal
#43
of 104 outputs
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