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Chen JB, Liu B, Shen T, Hou WT, He Y. Biomechanical design optimization and experimental verification of Bezier curve based two-sectional cervical pillow with variable-density cellular structure. Comput Methods Biomech Biomed Engin 2024:1-11. [PMID: 38963157 DOI: 10.1080/10255842.2024.2373934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 06/23/2024] [Indexed: 07/05/2024]
Abstract
The fundamental function of an optimal cervical pillow is to provide sufficient support to maintain normal spinal alignment and minimize biological stress on the contact surface throughout sleep. The recent advancements in cervical pillows have mainly focused on the subjective and objective evaluations of support comfort, as well as the relationship between pillow height and cervical vertebrae posture. However, only a few studies have addressed shape design guidelines and mechanical performances of the pillows themselves. In this study, a two-sectional contour cervical pillow comprising an arc and a Bezier curve is designed to support the head and neck. The design of the arc-shaped neck section incorporates the Cobb's angle and Borden value from healthy individuals to reflect the consistency of normal cervical anatomical features. The Bezier curve-based head section takes the head length and neck depth into account as significant individual differences. Static analysis and lattice optimization are performed in ANSYS Workbench to develop a variable-density cellular structure, aimed at improving air permeability and reducing the risk of pressure ulcers associated with the cervical pillow. The rapid prototyping technique fused deposition modeling (FDM) and thermoplastic material polylactic acid (PLA) are employed for fabricating different cellular structures. The results demonstrate that the neck section experiences less stress and greater deformation in comparison to the head section, indicating good comfort and support provided by the designed cervical pillow. Additionally, the compressive, bending, and cushion properties of the 3D-printed cervical pillow with variable-density cellular structure are experimentally validated, further confirming its effectiveness.
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Affiliation(s)
- Jian-Bin Chen
- Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, PR China
- Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou, China
| | - Bo Liu
- Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou, China
| | - Tao Shen
- Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, PR China
| | - Wen-Tao Hou
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Yong He
- Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou, China
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Guan GQ, Lin XD, Bao JL, Zhou XZ. Effect of cervical pillow in phacoemulsification surgery for age-related cataract patients: a prospective randomized controlled study. Int Ophthalmol 2024; 44:232. [PMID: 38861013 DOI: 10.1007/s10792-024-03090-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/05/2024] [Indexed: 06/12/2024]
Abstract
PURPOSE To explore the application effect of cervical pillow in phacoemulsification surgery for age-related cataract patients. METHODS 104 cases of age-related cataract patients admitted to our hospital in June 2023 were enrolled and divided into the control group (traditional supine position) and the experimental group (the cervical pillow supine position) by the digital parity method (52 cases per group). The two groups were evaluated for the discomfort score, the satisfaction of patients and doctors, the head displacement rate, the number of displacement, the operation time and the time of body position during the operation and after the operation. RESULTS There was no significant difference in the gender (P = 0.84), age (P = 0.86), course of disease (P = 0.82) and the time spent on position placement (P = 0.15) of the two groups. The patient in the experimental group had lower discomfort score (P = 0.0001), higher patients satisfaction (P = 0.0001) and higher doctors satisfaction (P = 0.0001) than patients in the control group. There was no significant difference between the experimental group and the control group in the proportion of intraoperative (P = 0.36) and postoperative pain (P = 0.65). Besides, the number of head transfers (P = 0.001), number of head shifts (P = 0.0001), the surgical time (P = 0.0001) and laparoscopic time (P = 0.0001) in the experimental group were significantly lower than those in the control group. CONCLUSION The additional cervical pillow for age-related cataract patients in the traditional supine position during the operation will not increase the preparation time before the operation, but will help improve the patient satisfaction, improve the comfort and maintain a good position of the operative eye field, bringing obvious comfort and smooth operation for the surgeon in the operation, thus reducing the risk of the operation, shortening the operation time.
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Affiliation(s)
- Guo-Qi Guan
- Department of Ophthalmology and Otolaryngology, Liannan Hospital of The First Affiliated Hospital of Guangdong Pharmaceutical University (Liannan Yao Autonomous County People's Hospital), Qingyuan, 513399, Guangdong, China
| | - Xiao-Dan Lin
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, China
| | - Jiong-Lin Bao
- Department of Ophthalmology, The First Affiliated Hospital/The First Clinical Medicine School of Guangdong Pharmaceutical University, Guangzhou, 510062, Guangdong, China.
| | - Xiao-Zhou Zhou
- Department of Nursing, The First Affiliated Hospital/The First Clinical Medicine School of Guangdong Pharmaceutical University, Guangzhou, 510062, Guangdong, China.
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Cine HS. Coexistence of Cervical Disc Herniation and Shoulder Soft Tissue Pathologies and the Effect of Sleeping Positions and Orthopedic Pillows. Cureus 2023; 15:e44510. [PMID: 37662509 PMCID: PMC10474908 DOI: 10.7759/cureus.44510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2023] [Indexed: 09/05/2023] Open
Abstract
Background/aim This study investigates the degree of coexistence of cervical disc herniation and shoulder soft tissue pathology, as well as the effect of sleeping positions and orthopedic pillow use. Materials and methods This present study was conducted on 72 patients with shoulder/arm pain operated on for cervical disc herniation. Two groups were examined according to the presence of shoulder soft tissue pathology, four common sleeping positions, and the use of an orthopedic pillow. Preoperative and postoperative shoulder/arm visual analog scale (VAS) scores were compared. Results The preoperative VAS values were 7.35, while the postoperative VAS values were 3.32. Twenty-one patients (29.2%) had a disc at the C3-4 level, a rate equal to that for the C5-6 level. Twenty-four patients (33.3%) had a disc at the C4-5 level. Thirty-two cases (44.4%) slept in a side-lying position on the same side as their disc herniation. Among those with a herniated disc at the C3-4 level, 8 (53.3%) preferred sleeping side-lying on the opposite side of the disc. In contrast, those with a herniated disc at the C4-5 level more frequently (40.6%) slept side-lying on the same side as the disc. Mean VAS scores were significantly higher in cases with shoulder soft tissue pathology and were significantly lower in the group that used orthopedic pillows (p<0.001). Conclusion Shoulder soft tissue pathologies should be considered in postoperative shoulder pain. The use of orthopedic pillows is effective in preoperative and postoperative pain. Sleeping positions do not affect the shoulder/arm pain before and after the operation, but they affect the level of cervical disc herniations.
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Affiliation(s)
- Hidayet Safak Cine
- Neurosurgery, Istanbul Medeniyet University, Prof. Dr. Suleyman Yalcin City Hospital, Istanbul, TUR
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Yamada S, Hoshi T, Toda M, Tsuge T, Matsudaira K, Oka H. Changes in neck pain and somatic symptoms before and after the adjustment of the pillow height. J Phys Ther Sci 2023; 35:106-113. [PMID: 36744195 PMCID: PMC9889209 DOI: 10.1589/jpts.35.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 11/09/2022] [Indexed: 02/04/2023] Open
Abstract
[Purpose] The purpose of this study was to determine whether strict adjustment of the pillow height using the Set-up for Spinal Sleep method improves clinical outcomes like neck pain and somatic symptoms. [Participants and Methods] A total of 84 participants with chief complaints of stiff shoulders and neck pain were evaluated using the numerical rating scale and the Somatic Symptom Scale-8. Questionnaires were used to collect data at the baseline, after two weeks, and after three months of adjusting the pillow height. [Results] Forty-two participants (50%) achieved the minimal clinically important difference for neck pain with a decrease of three points or higher in the numerical rating scale. The baseline neck pain scores were significantly higher in the group that achieved the minimal clinically important difference. The three-month change in neck pain and the Somatic Symptom Scale-8 was significantly greater in participants who were satisfied with treatment. There was a significant positive association between improvement in the numerical rating scale score and improvement in the Somatic Symptom Scale-8 at three months. [Conclusion] Strict adjustment of the pillow height using the Set-up for the Spinal Sleep method significantly improved both physical neck pain and somatic symptoms related to psychological and social problems.
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Affiliation(s)
- Shuori Yamada
- 16 Gou Orthopaedic Clinic: 1-3-7 Takane, Chuo-ku,
Sagamihara-shi, Kanagawa 252-0221, Japan,Corresponding author. Shuori Yamada (E-mail: )
| | - Tohru Hoshi
- School of Computer Science, Tokyo University of Technology,
Japan
| | - Michio Toda
- Department of Orthopaedic Surgery, Kurashiki Medical
Center, Japan
| | - Takahiro Tsuge
- Department of Rehabilitation, Kurashiki Medical Center,
Japan
| | - Ko Matsudaira
- Department of Orthopaedic Surgery, Kurashiki Medical
Center, Japan
| | - Hiroyuki Oka
- Department of Medical Research and Management for
Musculoskeletal Pain, 22nd Century Medical & Research Center, Faculty of Medicine, The
University of Tokyo, Japan
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Milenovic N, Klasnja A, Skrbic R, Popovic Petrovic S, Lukac S, Devecerski G. Sleep Problems and Disabilities of the Arm, Shoulder, and Hand in Persons with Thoracic Outlet Syndrome-A Cross-Sectional Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12486. [PMID: 36231785 PMCID: PMC9566055 DOI: 10.3390/ijerph191912486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Thoracic outlet syndrome (TOS) arises as a result of a specific relationship among the anatomical structures that may cause compression in the muscles, nerves, and/or blood vessels in the neck, thereby compromising the local circulation. The aim of the current study was to establish the presence of sleep disturbance and disability in the shoulder, arm, and hand in individuals affected by TOS, as well as to ascertain if there are any differences in these findings relative to TOS-free individuals. The study sample comprised 82 TOS patients and 81 TOS-free individuals aged 19-66 years. Data were gathered by administering the Disabilities of the Arm, Shoulder, and Hand (DASH) and Pittsburgh Sleep Quality Index (PSQI) instruments. The results showed that both the DASH (t = -13.21, p < 0.001) and PSQI (t = -7.27, p < 0.001) scores obtained by the TOS group were higher relative to the controls and were strongly and positively correlated (ρ = 0.58, p < 0.01). As positive DASH scores may be indicative of TOS, they signal the need for further diagnostic evaluations. In individuals in whom TOS is already diagnosed, high DASH scores imply that further sleep quality assessments are required, as compromised sleep patterns may undermine quality of life.
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Affiliation(s)
- Natasa Milenovic
- Faculty of Medicine, University of Novi Sad, 21 137 Novi Sad, Serbia
- The Special Hospital for Rheumatic Diseases, 21 137 Novi Sad, Serbia
| | | | - Renata Skrbic
- Faculty of Medicine, University of Novi Sad, 21 137 Novi Sad, Serbia
| | - Svetlana Popovic Petrovic
- Faculty of Medicine, University of Novi Sad, 21 137 Novi Sad, Serbia
- Oncology Institute of Vojvodina, 21 204 Sremska Kamenica, Serbia
| | - Sonja Lukac
- Faculty of Medicine, University of Novi Sad, 21 137 Novi Sad, Serbia
- Center of Radiology, University Clinical Center of Vojvodina, 21 137 Novi Sad, Serbia
| | - Gordana Devecerski
- Faculty of Medicine, University of Novi Sad, 21 137 Novi Sad, Serbia
- Department at the Clinic for Medical Rehabilitation, University Clinical Center of Vojvodina, 21 137 Novi Sad, Serbia
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Periosteal Needling to the Cervical Articular Pillars as an Adjunct Intervention for Treatment of Chronic Neck Pain and Headache: A Case Report. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12063122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
(1) Background: Periosteal dry needling (PDN) involves clinicians using a solid filiform needle to stimulate bone for analgesic purposes. This case report presents the use of PDN to the cervical articular pillars (CAPs) in an 85-year-old female with chronic neck pain and headache. (2) Case description: PDN was applied to the right C2–C3 articular pillars, following trigger point dry needling (TrPDN) and manual therapy, in order to provide a direct sensory stimulus to the corresponding sclerotomes. PDN added over two treatments led to improved cervical range of motion and eliminated the patient’s neck pain and headache at 1 week follow-up. (3) Outcomes: At discharge, clinically relevant improvements were demonstrated on the numeric pain rating scale (NPRS), which improved from an 8/10 on intake to a 0/10 at rest and with all movements. In addition, the patient exceeded the risk adjusted predicted four-point score improvement and the minimal clinically important improvement (MCII) value of four points on the Focus on Therapeutic Outcomes (FOTO) Neck Functional Status (Neck FS). At one month post-discharge, the patient remained symptom-free. (4) Discussion: In the context of an evidence-informed approach for neck pain and headache, PDN led to marked improvements in pain and function. Patient outcomes exceeded predictive analytic expectations for functional gains and efficient utilization of visits and time in days. Combined with other interventions, PDN to the CAPs could be a viable technique to treat chronic neck pain with headache.
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Lei JX, Yang PF, Yang AL, Gong YF, Shang P, Yuan XC. Ergonomic Consideration in Pillow Height Determinants and Evaluation. Healthcare (Basel) 2021; 9:1333. [PMID: 34683013 PMCID: PMC8544534 DOI: 10.3390/healthcare9101333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/28/2021] [Accepted: 10/03/2021] [Indexed: 11/16/2022] Open
Abstract
(1) Background: Sleep problems have become one of the current serious public health issues. Pillow height affects the alignment of the cervical spine and is closely related to the mechanical environment of the cervical spine. An appropriate pillow height can provide adequate support for the head and neck to reduce the stress in the cervical spine and relax the muscles of the neck and shoulder, thereby relieving pain and improving sleep quality. (2) Methods: We reviewed the current trends, research methodologies, and determinants of pillow height evaluation, summarizing the evidences published since 1997. In particular, we scrutinized articles dealing with the physiological and mechanical characteristics of the head-neck-shoulder complex. (3) Results: Through the investigation and analysis of these articles, we presented several quantitative and objective determinants for pillow height evaluation, including cervical spine alignment, body dimension, contact pressure, and muscle activity. The measurement methods and selection criteria for these parameters are described in detail. However, the suggested range for achieving optimal cervical spine alignment, appropriate pressure distribution, and minimal muscle activity during sleep cannot yet be identified considering the lack of sufficient evidence. Moreover, there remain no firm conclusions about the optimal pillow height for the supine and lateral positions. (4) Conclusions: A comprehensive evaluation combining the above determinants provides a unique solution for ergonomic pillow design and proper pillow height selection, which can effectively promote the public sleep health. Therefore, it is necessary to develop a reasonable algorithm to weigh multiple determinants.
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Affiliation(s)
- Jia-Xing Lei
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China; (J.-X.L.); (P.-F.Y.); (P.S.)
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Peng-Fei Yang
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China; (J.-X.L.); (P.-F.Y.); (P.S.)
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Ai-Ling Yang
- Shenzhen Zhengjing Technology Limited Liability Company, Shenzhen 518057, China; (A.-L.Y.); (Y.-F.G.)
| | - Yan-Feng Gong
- Shenzhen Zhengjing Technology Limited Liability Company, Shenzhen 518057, China; (A.-L.Y.); (Y.-F.G.)
| | - Peng Shang
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China; (J.-X.L.); (P.-F.Y.); (P.S.)
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi’an 710072, China
- Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Shenzhen 518057, China
| | - Xi-Chen Yuan
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi’an 710072, China
- Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace Northwestern Polytechnical University, Xi’an 710072, China
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