Can knee flexion contracture affect cervical alignment and neck tension? A prospective self-controlled pilot study

Ding, Yi; Liu, Baoge; Qiao, Hui; Yin, Lu; He, Wen; Si, Fangda; Wang, Dian

doi:10.1016/j.spinee.2019.09.008

Cited by 20 publications

(22 citation statements)

References 28 publications

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“…The exclusion criteria were as follows: (1) evidence of a previous osteoporotic vertebral fracture, (2) a history of previous spinal decompression or fusion surgery, (3) combined with a spinal tumor or the presence of pathologic compression fractures, (4) poor medication compliance with anti-osteoporotic drugs during the follow-up period, and (5) presence of Parkinson’s disease, amyotrophic lateral sclerosis, or other neuromuscular system diseases. 15 The Ethics Committee for the Protection of Human Subjects approved all protocols and procedures. A waiver of informed consent was granted because of the retrospective data collection.…”

Section: Methodsmentioning

confidence: 99%

Paraspinal Muscle Degeneration: A Potential Risk Factor for New Vertebral Compression Fractures After Percutaneous Kyphoplasty

Si¹,

Yuan²,

Zang³

et al. 2022

CIA

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Background The paraspinal muscle is essential for maintaining normal spine function and structure, which degeneration is closely related to various spinal diseases. The main objective of this study was to identify the potential role of paraspinal muscle degeneration in the occurrence of new vertebral compression fractures (NVCF) and develop a clinically applicable nomogram for prospective NVCF risk prediction. Methods A total of 202 patients with single-level osteoporotic vertebral compression fractures (OVCF) who underwent percutaneous kyphoplasty treatment between January 2016 and March 2019 were included in this study. Demographic, clinical, radiological, and treatment data were collected and analyzed. The paraspinal muscle cross-sectional area (CSA) and fat signal fraction (FSF) were measured to quantify the extent of muscle degeneration. Multivariate binary logistic regression analysis was performed to select risk factors to build a nomogram that predicted the occurrence of NVCF. The concordance index (C-index) and calibration curve were used to evaluate the discriminative capacity and predictive accuracy of the nomogram. Results NVCF occurred in 54 of 202 patients (26.7%). The erector spinae FSF (OR = 1.064; P = 0.001), psoas major FSF (OR = 1.326; P < 0.001), and the difference index of the muscle CSA between multifidus and psoas major (OR = 1.048; P < 0.001) were independent risk factors for the occurrence of NVCF. The nomogram performance was good after evaluation using the calibration curves and C-index (95% confidence interval, 0.854–0.943). Conclusion Paraspinal muscle degeneration is a potential risk factor for NVCF occurrence. A nomogram was designed to precisely predict the risk of NVCF. This predictive nomogram may help clinicians to make better clinical decisions and provide more accurate functional exercise protocol for OVCF patients.

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Section: Methodsmentioning

confidence: 99%

Paraspinal Muscle Degeneration: A Potential Risk Factor for New Vertebral Compression Fractures After Percutaneous Kyphoplasty

Si¹,

Yuan²,

Zang³

et al. 2022

CIA

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“…The inclusion criteria were as follows: 1) asymptomatic volunteer; 2) 20–65 years, BMI＜28. The exclusion criteria were as follows: 1) Parkinson’s disease, amyotrophic lateral sclerosis, and the other neuromuscular diseases ( Ding et al, 2020 ); 2) history of spinal deformity, spinal tumor, or compression fracture; 3) surgery history of spine; 4) moderate neck pain with a visual analogue scale (VAS) > 3 ( Falla et al, 2007 ); 5) can not cooperate to the surface electromyography (SEMG) test.…”

Section: Methodsmentioning

confidence: 99%

“…The myoelectrical activity of splenius capitis (SPL), upper trapezius (UTr), and sternocleidomastoid (SCM) were recorded with a SEMG device (FlexComp Infiniti System, T7550, Thought Technology Ltd, Canada) during the rotation tasks. The electrodes (Ag–AgCl electrode, diameter 2 cm, CH55RD, Cathay manufacturing group, Shanghai, China) for SPL were located 2 cm from the spinous process at the C4 level ( Joines et al, 2006 ; Ding et al, 2020 ), and the electrodes for UTR were located at the midpoint of a line between the C7 spinous process and the middle of the acromion ( Ding et al, 2020 ), the electrodes for SCM were located at the lower one-third of the mastoid process and sternal notch ( Falla et al, 2002 ) ( Figure 3 ).…”

Section: Methodsmentioning

confidence: 99%

“…Cervical muscular function is of great significance to the cervical stability, alignment, head posture, and motion ( Cheng et al, 2011 ; Thakar et al, 2014 ; Ding et al, 2020 ). Cervical muscular dysfunction can contribute to a series of disorders and neuromuscular diseases, such as neck pain (NP) ( Cheng et al, 2011 ), cervical dystonia, and cervical bending and rotation deformities ( Hussein et al, 2017 ), as well as abnormal postures, such as wryneck posture.…”

Section: Introductionmentioning

confidence: 99%

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Effects of hanger reflex on the cervical muscular activation and function: A surface electromyography assessment

Wang

Liu

2022

Front. Physiol.

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Introduction: Cervical muscular dysfunction is closely associated with disorders and neuromuscular diseases of the cervical spine, and the hanger reflex (HR) has the potential to become a rehabilitation method. The muscular electrophysiology mechanism of HR is unclear. This study aims to identify the impacts of HR on cervical rotators’ myoelectrical activity and function.Methods: We designed a self-control clinical trial, and asymptomatic volunteers were continuously included from 1 September 2021 to 30 April 2022 in our department. Rotation tasks were performed on both sides under each of the situations: no HR, unilateral HR, and bilateral HR. Surface electromyography (SEMG) was used to detect the myoelectrical activity of agonistic splenius capitis (SPL), upper trapezius (UTr), and sternocleidomastoid (SCM). The co-contraction ratio (CCR) during rotation tasks was calculated. Correlation analyses and multiple linear regression were performed.Results: Finally, 90 subjects were enrolled (power >90%). The adjusted EMG value (aEMG) of SPL UTr, SCM, and rotating CCR under the unilateral HR and bilateral HR were higher than no HR; the aEMG of SPL and rotating CCR under the bilateral HR were higher than the unilateral HR. Multiple linear regression showed that HR pattern and age were the independent affecting factors for the aEMG of SPL (p < 0.001, p < 0.001), UTr (p < 0.001, p < 0.001), and SCM (p < 0.001, p < 0.001); BMI was an independent affecting factor for the aEMG of SPL (p < 0.001) and SCM (p < 0.001); HR pattern was the only affecting factor for CCR (p < 0.001).Conclusion: HR can increase the cervical rotators’ myoelectrical activities and rotating CCR, and the effects of bilateral HR are greater than unilateral HR, suggesting that bilateral HR has a greater clinical potential to become a rehabilitation method for treating cervical neuromuscular disorders.

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“…The spine parameters mainly include thoracic kyphosis (TK), lumbar lordosis (LL) and C7 tilt [11]. The spine and pelvis are connected in an anatomical structure, and the sagittal parameters between them are related and coordinated.…”

Section: Introductionmentioning

confidence: 99%

Comparison of sagittal spinopelvic parameters in different types of double-level degenerative lumbar spondylolisthesis: a retrospective study

Zhang

Deng

et al. 2020

Preprint

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Background Degenerative lumber spondylolisthesis (DLS), a common orthopaedic disease causing low back pain, seriously affects daily life and work. Although sagittal spinopelvic parameters have been studied in single-level DLS patients, investigations into different types of double-level DLS are scarce. This study aims to analyse the demographic and radiological parameters of patients with different types of double-level DLS and compare their differences to provide a reference for guiding surgical treatment and restoring sagittal balance of DLS patients. Methods From January 2014 to January 2020, double-level DLS patients’ records were retrospectively reviewed and divided into three types: anterior, posterior, and combined; the anterior and combined types were studied. Two spin surgeons measured the sagittal spinopelvic parameters: C7 tilt, maximal thoracic kyphosis (TKmax), maximal lumbar lordosis (LLmax), pelvic incidence (PI), pelvic tilt (PT), and sacral slope (SS). Following descriptive analysis, demographic and radiographic data were compared between the anterior and combined types. Results Patients in the anterior type group (n = 40) were older (67.68 ± 6.66 vs. 61.72 ± 10.06 years, P = 0.031), and the proportion of females were significantly higher (90% vs. 50%, P = 0.001) than the combined group (n = 18). Both groups had different levels of chronic lower back pain, but the incidence of radiating leg pain and neurogenic claudication was significantly higher in the anterior type. Owestry disability index and visual analogue scale lower back scores were also higher in the anterior type. In the anterior type, C7 tilt (7.14 ± 2.15 vs. 5.41 ± 2.28, P = 0.007), LLmax (50.02 ± 14.76 vs. 36.96 ± 14.56, P = 0.003), PI (68.28 ± 9.16 vs. 55.53 ± 14.19, P < 0.001), PT (28.68 ± 7.31 vs. 19.38 ± 4.70, P < 0.001), and PT/PI (42.45 ± 11.22 vs. 36.04 ± 9.87, P = 0.041) were significantly higher. In the anterior type, PI correlated significantly positively with LLmax (r = 0.59) and SS (r = 0.71). LLmax and SS (r = 0.65) had a positive correlation. PT/PI and SS (r = -0.77) had a negative correlation. In the combined type, PI correlated positively with LLmax (r = 0.61) and SS (r = 0.88), and PT/PI correlated negatively with SS (r = -0.81). Conclusions In patients with double-level DLS, the sagittal spinopelvic parameters differ between the anterior and combined types. PI and LLmax were significantly higher in the anterior type, resulting in compensation by forward flexion and pelvic retroversion. Spinal surgeons should focus on correcting sagittal deformities, relieving postoperative clinical symptoms, and improving quality of life during fusion surgery, which is proven to guarantee long-term surgical results.

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Can knee flexion contracture affect cervical alignment and neck tension? A prospective self-controlled pilot study

Cited by 20 publications

References 28 publications

Paraspinal Muscle Degeneration: A Potential Risk Factor for New Vertebral Compression Fractures After Percutaneous Kyphoplasty

Paraspinal Muscle Degeneration: A Potential Risk Factor for New Vertebral Compression Fractures After Percutaneous Kyphoplasty

Effects of hanger reflex on the cervical muscular activation and function: A surface electromyography assessment

Comparison of sagittal spinopelvic parameters in different types of double-level degenerative lumbar spondylolisthesis: a retrospective study

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