1.Surgical Outcomes of Full Endoscopic Posterior Cervical Foraminotomy for Proximal Cervical Spondylotic Amyotrophy
Deokcheol LEE ; Kazuo OHMORI ; Reiko YONEYAMA ; Takuro ENDO ; Yasuhiro ENDO
Asian Spine Journal 2024;18(1):32-41
Methods:
Patients without myelopathy who underwent FPCF for proximal CSA between 2017 and 2022 were analyzed. The outcome measure was the results of the manual muscle testing (MMT) of the deltoid and biceps. Preoperative nerve root and AH compression were evaluated by magnetic resonance imaging. The intervertebral foramen morphology and bony decompression extent were evaluated by computed tomography.
Results:
FPCF was performed at the C4/5 level and at the C4/5 and C5/6 levels in 14 and 11 patients, respectively. The width of the narrowest intervertebral foramen was significantly narrower on the affected side than on the healthy side at the C4/5 (2.5 mm vs. 3.6 mm) and operated C5/6 (1.9 mm vs. 3.1 mm) levels. AH compression occurred at the C4/5 and C5/6 levels in 28% and 21% of the patients, respectively. Bony decompression was performed laterally beyond the narrowest foramen at the C4/5 and C5/6 levels in 96% and 91% of the patients, respectively. Compared with patients without AH compression, in those with AH compression, the lamina was resected medially by an average of >1.7 mm and >3.6 mm at the C4/5 and C5/6 levels, respectively. Furthermore, 76% and 81% of the facet joint surfaces were preserved at the C4/5 and C5/6 levels, respectively. Postoperative MMT grade improvement was excellent, good, and fair in 64%, 20%, and 16% of the patients, respectively.
Conclusions
FPCF was effective for treating proximal CSA.
2.Transcutaneous Electrical Nerve Stimulation For Muscle Fatigue
Namuun G ; Yasuhiro Endo ; Rie Nakazawa ; Tserendagva D ; Masaaki Sakamoto
Journal of Oriental Medicine 2012;3(2):74-74
Introduction: Several studies found that TENS is effective for
reducing pain and improving physical function. But it is still
unclear that influencing of TENS for muscle fatigue. The purpose
of this study was to determine the effect of TENS on muscle
fatigue after isometric extension exercise of trunk.
Methods: To establish the muscle activity, healthy men were
produced their maximum isometric exertion 15 times and
electromyography was recorded (Task I). And continuing,
subjects maintained the unsupported body as long as they
could. After this, subjects of study group were received TENS
and subjects of control group were rested for 5 minutes. After
the intervention each group was produced their maximum
isometric exertion as same as Task 1 (Task II). VAS and muscle
elasticity were measured.
Results and Conclusions: The significant decreases of muscle
activity of study group were beginning later than in control group.
And the fourth of task tends show a bigger value of %VMA in
comparison with the first of all muscles of Task I in both group
and in Task II in study group. However in Task II there were no
tendencies in control group. Therefore, we thought that TENS
was influenced to nervous system electronically for muscle
fatigue.