start-ver=1.4
cd-journal=joma
no-vol=78
cd-vols=
no-issue=5
article-no=
start-page=357
end-page=362
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=202410
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Factors Affecting Dynamic Postural Control Ability in Adolescent Idiopathic Scoliosis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Research on postural control in patients with adolescent idiopathic scoliosis (AIS) has focused on static postural control, with few studies assessing dynamic postural control. We aimed to identify factors affecting index of postural stability (IPS), a dynamic postural control parameter, in patients with AIS. The participants comprised 50 female patients with AIS. We measured the IPS using stabilometry to evaluate dynamic postural control ability. We investigated age of the participants, major curve position (thoracic or thoracolumbar/lumbar), Cobb angle, and coronal balance. We then assessed the relationships between stabilometry parameters and other variables. IPS was analyzed with a linear regression model. Coronal balance, major curve position, and age each correlated with dynamic postural control ability. The Cobb angle showed no correlation with any of the parameters. Our results offer new insights into the assessment of postural control in patients with AIS.
en-copyright=
kn-copyright=
en-aut-name=YamawakiRyoko
en-aut-sei=Yamawaki
en-aut-mei=Ryoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=OdaYoshiaki
en-aut-sei=Oda
en-aut-mei=Yoshiaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YamaneShuhei
en-aut-sei=Yamane
en-aut-mei=Shuhei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=UotaniKoji
en-aut-sei=Uotani
en-aut-mei=Koji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=MisawaHaruo
en-aut-sei=Misawa
en-aut-mei=Haruo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=KatayamaYoshimi
en-aut-sei=Katayama
en-aut-mei=Yoshimi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=HamadaMasanori
en-aut-sei=Hamada
en-aut-mei=Masanori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=OzakiToshifumi
en-aut-sei=Ozaki
en-aut-mei=Toshifumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Division of Physical Medicine and Rehabilitation, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=3
en-affil=Division of Physical Medicine and Rehabilitation, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Orthopaedic Surgery, Okayama University
kn-affil=
affil-num=5
en-affil=Ryusoh Orthopaedic Hospital
kn-affil=
affil-num=6
en-affil=Division of Physical Medicine and Rehabilitation, Okayama University
kn-affil=
affil-num=7
en-affil=Division of Physical Medicine and Rehabilitation, Okayama University
kn-affil=
affil-num=8
en-affil=Division of Physical Medicine and Rehabilitation, Okayama University
kn-affil=
en-keyword=adolescent idiopathic scoliosis
kn-keyword=adolescent idiopathic scoliosis
en-keyword=postural control
kn-keyword=postural control
en-keyword=coronal balance
kn-keyword=coronal balance
en-keyword=index of postural stability
kn-keyword=index of postural stability
en-keyword=stabilometry
kn-keyword=stabilometry
END
start-ver=1.4
cd-journal=joma
no-vol=101
cd-vols=
no-issue=39
article-no=
start-page=e30802
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2022
dt-pub=20220930
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Factors influencing caregiver burden in chronic pain patients: A retrospective study
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Chronic pain coexists with disability, anxiety, depression, and sleep disturbances, which are factors of pain chronicity in the fear-avoidance model. Self-efficacy for managing pain plays a protective role against pain chronicity. For chronic pain sufferers, social support from caregivers is important. However, such caregivers face enormous physical and mental burdens. This study aimed to assess how self-efficacy and factors related to the fear-avoidance model affect caregiver burden. Participants were 135 chronic pain patients and their caregivers who visited our outpatient pain special clinic. In clinical assessments, numeric rating scale (NRS), pain catastrophizing scale (PCS), hospital anxiety and depression scale (HADS), Athens insomnia scale (AIS), pain disability assessment scale (PDAS), pain self-efficacy questionnaire (PSEQ) for the patients and Zarit Burden Interview (ZBI) for their caregivers were evaluated. Participants were divided into 2 groups (L group ZBI < 24 points and H group ZBI >= 24 points) and compared. Regression analyses were conducted to identify factors correlated with the ZBI scores. Compared to L group, H group showed significantly higher NRS and HADs depression scores, and lower PSEQ scores. In univariate regression analysis, ZBI scores were significantly correlated with NRS, PCS, HADS anxiety, HADS depression, PDAS and PSEQ. Multiple linear regression analysis revealed that ZBI scores were significantly correlated with PSEQ. The caregivers who perceived high caregiver burden had significantly higher patients' pain intensity, depression, and lower self-efficacy than those who perceived low caregiver burden. Caregiver burden correlated with the pain intensity, pain catastrophizing, anxiety, depression, disability, and self-efficacy of chronic pain patients. Among these factors, self-efficacy was the most negatively correlated with caregiver burden. Treatments focused on increasing self-efficacy for managing pain have the potential to reduce caregiver burden.
en-copyright=
kn-copyright=
en-aut-name=TsujiHironori
en-aut-sei=Tsuji
en-aut-mei=Hironori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TetsunagaTomoko
en-aut-sei=Tetsunaga
en-aut-mei=Tomoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=TetsunagaTomonori
en-aut-sei=Tetsunaga
en-aut-mei=Tomonori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=MisawaHaruo
en-aut-sei=Misawa
en-aut-mei=Haruo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=OdaYoshiaki
en-aut-sei=Oda
en-aut-mei=Yoshiaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=TakaoShinichiro
en-aut-sei=Takao
en-aut-mei=Shinichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=NishidaKeiichiro
en-aut-sei=Nishida
en-aut-mei=Keiichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=OzakiToshifumi
en-aut-sei=Ozaki
en-aut-mei=Toshifumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil= Department of Orthopedic Surgery, Okayama Red Cross Hospital
kn-affil=
affil-num=2
en-affil=Department of Orthopedic Surgery, Okayama University Hospital
kn-affil=
affil-num=3
en-affil=Department of Orthopedic Surgery, Okayama University Hospital
kn-affil=
affil-num=4
en-affil=Department of Orthopedic Surgery, Okayama University Hospital
kn-affil=
affil-num=5
en-affil=Department of Orthopedic Surgery, Okayama University Hospital
kn-affil=
affil-num=6
en-affil=Department of Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
kn-affil=
affil-num=7
en-affil=Department of Orthopedic Surgery, Okayama University Hospital
kn-affil=
affil-num=8
en-affil=Department of Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
kn-affil=
en-keyword=caregiver burden
kn-keyword=caregiver burden
en-keyword=chronic pain
kn-keyword=chronic pain
en-keyword=fear-avoidance model
kn-keyword=fear-avoidance model
en-keyword=self-efficacy
kn-keyword=self-efficacy
en-keyword=Zarit Burden Interview
kn-keyword=Zarit Burden Interview
END
start-ver=1.4
cd-journal=joma
no-vol=58
cd-vols=
no-issue=5
article-no=
start-page=565
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2022
dt-pub=20220420
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Mechanical Study of Various Pedicle Screw Systems including Percutaneous Pedicle Screw in Trauma Treatment
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Background and Objectives: Spine surgery using a percutaneous pedicle screw placement (PPSP) is widely implemented for spinal trauma. However, percutaneous systems have been reported to have weak screw-rod connections. In this study, conventional open and percutaneous systems were biomechanically evaluated and compared. Material and Methods: The experiments were performed in two stages: the first stage was a break test, whereas the second stage was a fatigue test. Four systems were used for the experiments. System 1 was intended for conventional open surgery (titanium rod with a 6.0 mm diameter, using a clamp connecting mechanism). System 2 was a percutaneous pedicle screw (PPS) system for trauma (titanium alloy rod with a 6.0 mm diameter, using ball ring connections). System 3 was a PPS system for trauma (cobalt-chromium alloy rod with a 6.0 mm diameter, using sagittal adjusting screw connections). System 4 was a general-purpose PPS system (titanium alloy rod with a 5.5 mm diameter, using a mechanism where the adapter in the head holds down the screw). Results: Stiffness values of 54.8 N/mm, 43.1 N/mm, 90.9 N/mm, and 39.3 N/mm were reported for systems 1, 2, 3, and 4, respectively. The average number of load cycles in the fatigue test was 134,393, 40,980, 1,550,389, and 147,724 for systems 1 to 4, respectively. At the end of the test, the displacements were 0.2 mm, 16.9 mm, 1.2 mm, and 8.6 mm, respectively. System 1, with a locking mechanism, showed the least displacement at the end of the test. Conclusion: A few PPS systems showed better results in terms on stiffness and life than the open system. The experiments showed that mechanical strength varies depending on the spinal implant. The experiments conducted are essential and significant to provide the mechanical strength required for surgical reconstruction.
en-copyright=
kn-copyright=
en-aut-name=OdaYoshiaki
en-aut-sei=Oda
en-aut-mei=Yoshiaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TakigawaTomoyuki
en-aut-sei=Takigawa
en-aut-mei=Tomoyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=ItoYasuo
en-aut-sei=Ito
en-aut-mei=Yasuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=MisawaHaruo
en-aut-sei=Misawa
en-aut-mei=Haruo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=TetsunagaTomoko
en-aut-sei=Tetsunaga
en-aut-mei=Tomoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=UotaniKoji
en-aut-sei=Uotani
en-aut-mei=Koji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=OzakiToshifumi
en-aut-sei=Ozaki
en-aut-mei=Toshifumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=2
en-affil=Department of Orthopaedic Surgery, Kobe Red Cross Hospital
kn-affil=
affil-num=3
en-affil=Department of Orthopaedic Surgery, Kobe Red Cross Hospital
kn-affil=
affil-num=4
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=5
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=6
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=7
en-affil=Department of Orthopaedic Surgery, Dentistry, and Pharmaceutical Sciences, Graduate School of Medicine, Okayama University
kn-affil=
en-keyword=spine surgery
kn-keyword=spine surgery
en-keyword=percutaneous pedicle screw
kn-keyword=percutaneous pedicle screw
en-keyword=percutaneous systems
kn-keyword=percutaneous systems
en-keyword=break test
kn-keyword=break test
en-keyword=fatigue test
kn-keyword=fatigue test
en-keyword=biomechanical study discipline
kn-keyword=biomechanical study discipline
END
start-ver=1.4
cd-journal=joma
no-vol=58
cd-vols=
no-issue=5
article-no=
start-page=605
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2022
dt-pub=20220427
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Long-Term Results of Posterior Vertebral Column Resection for Severe Thoracolumbar Kyphosis with Achondroplastic Patients: A Case Series
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Background and Objectives: Thoracolumbar kyphosis is one of the most frequent skeletal manifestations in patients with achondroplasia. Few papers have been published on the surgical treatment of this condition, especially in skeletally mature patients. With this study, we presented a retrospective case series of long-term surgical results for achondroplastic patients with severe thoracolumbar kyphosis. This study was conducted to evaluate the outcome of surgical treatment for thoracolumbar kyphosis in patients associated with achondroplasia presenting with paraparesis. Materials and Methods: Three patients with achondroplasia who developed neurologic deficits due to severe thoracolumbar kyphosis and underwent surgical treatment were evaluated (mean age 22.3 years; mean follow-up 9.3 years). All patients were treated with posterior vertebral column resection (p-VCR) of hypoplastic apical vertebrae with a cage and segmental instrumentation. Neurologic outcomes (JOA scores), correction of kyphosis, and operative complications were assessed. Results: All patients had back pain, neurological deficits, and urinary disturbance before surgery. The average preoperative JOA score was 8.3/11 points, which was improved to 10.7/11 points at the final follow-up (mean recovery rate 83%). All patients obtained neurologic improvement after surgery. The mean preoperative kyphotic angle was 117 degrees (range 103 degrees-126 degrees). The postoperative angles averaged 37 degrees (range 14 degrees-57 degrees), resulting in a mean correction rate of 67%. All patients had postoperative complications such as rod breakage and/or surgical site infection. Conclusions: The long-term results of p-VCR were acceptable for treating thoracolumbar kyphosis in patients with achondroplasia. To perform this p-VCR safely, spinal navigation and neuromonitoring are inevitable when resecting non anatomical fused vertebrae and ensuring correct pedicle screw insertion. However, surgical complications such as rod breakage and surgical site infection may occur at a high rate, making informed consent very important when surgery is indicated.
en-copyright=
kn-copyright=
en-aut-name=TanakaMasato
en-aut-sei=Tanaka
en-aut-mei=Masato
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=ChanTsang-Tung
en-aut-sei=Chan
en-aut-mei=Tsang-Tung
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MisawaHaruo
en-aut-sei=Misawa
en-aut-mei=Haruo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=UotaniKoji
en-aut-sei=Uotani
en-aut-mei=Koji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=AratakiShinaya
en-aut-sei=Arataki
en-aut-mei=Shinaya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=TakigawaTomoyuki
en-aut-sei=Takigawa
en-aut-mei=Tomoyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=MazakiTetsuro
en-aut-sei=Mazaki
en-aut-mei=Tetsuro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=SugimotoYoshihisa
en-aut-sei=Sugimoto
en-aut-mei=Yoshihisa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=2
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=3
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=4
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=5
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=6
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=7
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=8
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
en-keyword=achondroplasia
kn-keyword=achondroplasia
en-keyword=vertebral column osteotomy
kn-keyword=vertebral column osteotomy
en-keyword=long-term follow-up
kn-keyword=long-term follow-up
en-keyword=navigation
kn-keyword=navigation
END
start-ver=1.4
cd-journal=joma
no-vol=156
cd-vols=
no-issue=
article-no=
start-page=e300
end-page=e306
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2021
dt-pub=20210921
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Comparative Study of Bilateral Dual Sacral-Alar-Iliac Screws versus Bilateral Single Sacral-Alar-Iliac Screw for Adult Spine Deformities
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Objective
To evaluate the feasibility of O-arm navigation of bilateral dual sacral-alar-iliac (SAI) screws compared with conventional bilateral single SAI and S1 pedicle screws for pelvic anchors in cases of adult spinal deformity.
Methods
This retrospective, comparative study included 39 patients who underwent corrective fusion using SAI screws from T10 to the pelvis. Patients were divided into 2 groups according to the number of SAI screws placed during adult spinal deformity surgery: single SAI screw (group S, 17 cases) and dual SAI screws (group D, 22 cases). The incidence of rod breakage, proximal junctional kyphosis, screw loosening, reoperation, and global alignment in each group was estimated. Postoperative patient-reported outcomes were measured using the Oswestry Disability Index, Japanese Orthopaedic Association Back Pain Evaluation Questionnaire, and visual analog scale.
Results
The incidence of SAI screw loosening was significantly lower in group D than in group S (23% vs. 65%, P = 0.011). The rod breakage incidence was 0% and 12% in groups D and S, respectively (P = 0.17). There were no significant differences in the postoperative global alignment and clinical outcomes between the 2 groups.
Conclusions
Dual SAI screws were associated with a significantly reduced incidence of screw loosening compared with single SAI screws. The bilateral dual SAI screws technique for pelvic anchors is feasible for the treatment of patients with adult spinal deformity.
en-copyright=
kn-copyright=
en-aut-name=UotaniKoji
en-aut-sei=Uotani
en-aut-mei=Koji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TanakaMasato
en-aut-sei=Tanaka
en-aut-mei=Masato
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=SonawaneSumeet
en-aut-sei=Sonawane
en-aut-mei=Sumeet
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=RuparelSameer
en-aut-sei=Ruparel
en-aut-mei=Sameer
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=FujiwaraYoshihiro
en-aut-sei=Fujiwara
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=AratakiShinya
en-aut-sei=Arataki
en-aut-mei=Shinya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=YamauchiTaro
en-aut-sei=Yamauchi
en-aut-mei=Taro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=MisawaHaruo
en-aut-sei=Misawa
en-aut-mei=Haruo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Department of Orthopaedic surgery, Okayama Rosai Hospital
kn-affil=
affil-num=2
en-affil=Department of Orthopaedic surgery, Okayama Rosai Hospital
kn-affil=
affil-num=3
en-affil=Department of Orthopaedic surgery, Okayama Rosai Hospital
kn-affil=
affil-num=4
en-affil=Department of Orthopaedic surgery, Okayama Rosai Hospital
kn-affil=
affil-num=5
en-affil=Department of Orthopaedic surgery, Okayama Rosai Hospital
kn-affil=
affil-num=6
en-affil=Department of Orthopaedic surgery, Okayama Rosai Hospital
kn-affil=
affil-num=7
en-affil=Department of Orthopaedic surgery, Okayama Rosai Hospital
kn-affil=
affil-num=8
en-affil=Department of Orthopaedic surgery, Okayama University Hospital
kn-affil=
en-keyword=dual SAI screws
kn-keyword=dual SAI screws
en-keyword= adult spine deformity
kn-keyword= adult spine deformity
en-keyword= spinopelvic fixation
kn-keyword= spinopelvic fixation
en-keyword=navigation surgery
kn-keyword=navigation surgery
END
start-ver=1.4
cd-journal=joma
no-vol=11
cd-vols=
no-issue=1
article-no=
start-page=2284
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2021
dt-pub=20210127
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Quantification of patellar tendon reflex using portable mechanomyography and electromyography devices
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Deep tendon reflexes are one of the main components of the clinical nervous system examinations. These assessments are inexpensive and quick. However, evaluation can be subjective and qualitative. This study aimed to objectively evaluate hyperreflexia of the patellar tendon reflex using portable mechanomyography (MMG) and electromyography (EMG) devices. This study included 10 preoperative patients (20 legs) who had a pathology that could cause bilateral patellar tendon hyperreflexia and 12 healthy volunteers (24 legs) with no prior history of neurological disorders. We attached MMG/EMG sensors onto the quadriceps and tapped the patellar tendon with maximal and constant force. Our results showed a significantly high amplitude of the root mean square (RMS) and low frequency of the mean power frequency (MPF) in the rectus femoris, vastus medialis, and vastus lateralis muscles in both EMG and MMG with both maximal and constant force. Especially in the patients with cervical and thoracic myelopathy, the receiver operating characteristic (ROC) curve for diagnosing hyperreflexia of the patellar tendon showed a moderate to very high area under the curve for all EMG-RMS, EMG-MPF, MMG-RMS, and MMG-MPF values. The use of EMG and MMG for objectively quantifying the patellar tendon reflex is simple and desirable for future clinical applications and could help diagnose neurological disorders.
en-copyright=
kn-copyright=
en-aut-name=TsujiHironori
en-aut-sei=Tsuji
en-aut-mei=Hironori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MisawaHaruo
en-aut-sei=Misawa
en-aut-mei=Haruo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=TakigawaTomoyuki
en-aut-sei=Takigawa
en-aut-mei=Tomoyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TetsunagaTomoko
en-aut-sei=Tetsunaga
en-aut-mei=Tomoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=YamaneKentaro
en-aut-sei=Yamane
en-aut-mei=Kentaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=OdaYoshiaki
en-aut-sei=Oda
en-aut-mei=Yoshiaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=OzakiToshifumi
en-aut-sei=Ozaki
en-aut-mei=Toshifumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=Department of Orthopaedic Surgery, Dentistry, and Pharmaceutical Sciences, Okayama University Graduate School of Medicine
kn-affil=
affil-num=2
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=3
en-affil=Department of Orthopaedic Surgery, Kobe Red Cross Hospital
kn-affil=
affil-num=4
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=5
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=6
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=7
en-affil=Department of Orthopaedic Surgery, Dentistry, and Pharmaceutical Sciences, Okayama University Graduate School of Medicine
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=75
cd-vols=
no-issue=2
article-no=
start-page=239
end-page=242
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2021
dt-pub=202104
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Maximal Resection of Intramedullary Lipoma Using Intraoperative Ultrasonography: A Technical Note
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=One of the problems during surgery for intramedullary lipoma is the ambiguous boundary between the lipoma and the spinal cord, resulting in either incomplete resection or damage to the spinal cord. We report a case of intramedullary lipoma resection on a 61-year-old man in which the boundary between the tumor and spinal cord was repeatedly visualized with intraoperative ultrasonography. We focused on the distinctive features of fat as hyperechoic, in contrast to low-echo neural tissue. Subtotal resection of the tumor was achieved without any aggravation of neurological symptoms. Intraoperative ultrasonography may be useful for confirming tumor
boundaries during intramedullary lipoma resection.
en-copyright=
kn-copyright=
en-aut-name=MisawaHaruo
en-aut-sei=Misawa
en-aut-mei=Haruo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=OdaYoshiaki
en-aut-sei=Oda
en-aut-mei=Yoshiaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YamaneKentaro
en-aut-sei=Yamane
en-aut-mei=Kentaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TetsunagaTomoko
en-aut-sei=Tetsunaga
en-aut-mei=Tomoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=OzakiToshifumi
en-aut-sei=Ozaki
en-aut-mei=Toshifumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=2
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=3
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=4
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
affil-num=5
en-affil=Department of Orthopaedic Surgery, Okayama University Hospital
kn-affil=
en-keyword=intramedullary lipoma
kn-keyword=intramedullary lipoma
en-keyword=subtotal resection
kn-keyword=subtotal resection
en-keyword=ultrasonography
kn-keyword=ultrasonography
en-keyword=intraoperative guidance
kn-keyword=intraoperative guidance
END
start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=1
article-no=
start-page=191
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2020
dt-pub=20200526
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Short-term outcomes of mirogabalin in patients with peripheral neuropathic pain: a retrospective study
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Background
Mirogabalin, which is approved for the treatment of peripheral neuropathic pain in Japan, is a ligand for the α2δ subunit of voltage-gated calcium channels. Both pregabalin and mirogabalin act as nonselective ligands at the α2δ-1 and α2δ-2 subunits. Mirogabalin has a unique binding profile and long duration of action. Pregabalin has been reported to produce intolerable adverse effects in some patients. This study investigated outcomes associated with mirogabalin administration in patients with peripheral neuropathic pain who ceased treatment with pregabalin.
Methods
We retrospectively assessed peripheral neuropathic pain using the neuropathic pain screening questionnaire (NeP score) in 187 patients (58 men, 129 women) who were treated with mirogabalin. All patients had switched from pregabalin to mirogabalin due to lack of efficacy or adverse events. Differences in the treatment course (i.e., numeric rating scale (NRS) scores) were compared using one-way analysis of variance with Bonferroni post hoc tests.
Results
The mean age of the patients was 72.3 years (range, 30–94 years), and the mean duration of disease was 37 months (range, 3–252 months). After treatment with mirogabalin for 1 week, NRS scores significantly decreased compared with baseline and continued to decrease over time. After 8 weeks, NRS scores improved by ≥ 30% from baseline in 113 patients (69.3%). Twenty-four patients (12.8%) stopped mirogabalin treatment due to adverse events. Somnolence (26.7%), dizziness (12.3%), edema (5.9%), and weight gain (0.5%) were noted as adverse events of mirogabalin.
Conclusions
The results of this investigation indicate that mirogabalin is safe and effective for reducing peripheral neuropathic pain.
en-copyright=
kn-copyright=
en-aut-name=TetsunagaTomoko
en-aut-sei=Tetsunaga
en-aut-mei=Tomoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TetsunagaTomonori
en-aut-sei=Tetsunaga
en-aut-mei=Tomonori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NishidaKeiichiro
en-aut-sei=Nishida
en-aut-mei=Keiichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=MisawaHaruo
en-aut-sei=Misawa
en-aut-mei=Haruo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=TakigawaTomoyuki
en-aut-sei=Takigawa
en-aut-mei=Tomoyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=YamaneKentaro
en-aut-sei=Yamane
en-aut-mei=Kentaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=TsujiHironori
en-aut-sei=Tsuji
en-aut-mei=Hironori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=TakeiYoshitaka
en-aut-sei=Takei
en-aut-mei=Yoshitaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=OzakiToshifumi
en-aut-sei=Ozaki
en-aut-mei=Toshifumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
affil-num=1
en-affil=Department of Orthopedic Surgery, Okayama University Hospital
kn-affil=
affil-num=2
en-affil=Department of Orthopedic Surgery, Okayama University Hospital
kn-affil=
affil-num=3
en-affil=Department of Orthopedic Surgery, Okayama University Hospital
kn-affil=
affil-num=4
en-affil=Department of Orthopedic Surgery, Okayama University Hospital
kn-affil=
affil-num=5
en-affil=Department of Orthopedic Surgery, Okayama University Hospital
kn-affil=
affil-num=6
en-affil=Department of Orthopedic Surgery, Okayama University Hospital
kn-affil=
affil-num=7
en-affil=Department of Orthopedic Surgery, Okayama University Hospital
kn-affil=
affil-num=8
en-affil=Department of Orthopedic Surgery, Kurashiki Municipal Hospital
kn-affil=
affil-num=9
en-affil=Department of Orthopedic Surgery, Okayama University Hospital
kn-affil=
en-keyword=Peripheral neuropathic pain
kn-keyword=Peripheral neuropathic pain
en-keyword=Mirogabalin
kn-keyword=Mirogabalin
en-keyword=Pregabalin
kn-keyword=Pregabalin
en-keyword=Adverse event
kn-keyword=Adverse event
END
start-ver=1.4
cd-journal=joma
no-vol=20
cd-vols=
no-issue=23
article-no=
start-page=6078
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20191202
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Multipotent Neurotrophic Effects of Hepatocyte Growth Factor in Spinal Cord Injury
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Spinal cord injury (SCI) results in neural tissue loss and so far untreatable functional impairment. In addition, at the initial injury site, inflammation induces secondary damage, and glial scar formation occurs to limit inflammation-mediated tissue damage. Consequently, it obstructs neural regeneration. Many studies have been conducted in the field of SCI; however, no satisfactory treatment has been established to date. Hepatocyte growth factor (HGF) is one of the neurotrophic growth factors and has been listed as a candidate medicine for SCI treatment. The highlighted effects of HGF on neural regeneration are associated with its anti-inflammatory and anti-fibrotic activities. Moreover, HGF exerts positive effects on transplanted stem cell differentiation into neurons. This paper reviews the mechanisms underlying the therapeutic effects of HGF in SCI recovery, and introduces recent advances in the clinical applications of HGF therapy.
en-copyright=
kn-copyright=
en-aut-name=YamaneKentaro
en-aut-sei=Yamane
en-aut-mei=Kentaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MisawaHaruo
en-aut-sei=Misawa
en-aut-mei=Haruo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=TakigawaTomoyuki
en-aut-sei=Takigawa
en-aut-mei=Tomoyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ItoYoshihiro
en-aut-sei=Ito
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=OzakiToshifumi
en-aut-sei=Ozaki
en-aut-mei=Toshifumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=MatsukawaAkihiro
en-aut-sei=Matsukawa
en-aut-mei=Akihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Department of Intelligent Orthopaedic System Development, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=2
en-affil=Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=3
en-affil=Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=4
en-affil=Nano Medical Engineering Laboratory, RIKEN
kn-affil=
affil-num=5
en-affil=Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=6
en-affil=Department of Pathology and Experimental Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
en-keyword=hepatocyte growth factor
kn-keyword=hepatocyte growth factor
en-keyword=spinal cord injury
kn-keyword=spinal cord injury
en-keyword=neural regeneration
kn-keyword=neural regeneration
END