| ObjectiveTreatment of Patellofemoral Pain Syndrome(PFPS)using the principle of myofascial pain trigger point,the effect of acupuncture quadriceps muscle trigger point combined with static quadriceps stretching and simple quadriceps stretching.MethodsThis study selected outpatients who visited the Shanghai Institute of Physical Surgeon Pain Clinic and Shanghai Hudong Hospital Pain Clinic between March 2017 and July2017,and selected PFPS patients who participated in the study voluntarily.According to the inclusion and exclusion criteria,they were selected to meet the requirements of this study.50 patients with PFPS.This experiment was approved by the Ethics Committee of Shanghai Institute of Physical Education: No.2017017,Clinical Registration No.: ChiCTR-INR-17011560Fifty eligible patients were randomly divided into two groups using the random number table method: experimental group and control group,25 cases in each group.In the experimental group,acupuncture was applied to the internal oblique,femoral lateral,and rectus femoris trigger points.After acupuncture,the static quadriceps was stretched for 1 min,3 times a day,and acupuncture intervention was performed 6times a week.A total of 25 cases.The placebo needles were used in the control group.The needles were cut off and the needle tip was blunt.Acupuncture was performed in the calibrated trigger point area.The blunt needle touched only the surface of the skin,giving the subject a feeling of being in the scalp.Similar to the trigger point acupuncture,the insertion action is performed but the skin is not inserted.The statically-stretched quadriceps was the same as the experimental group.The static quadriceps was stretched for 1 min,3times a day,once a week for acupuncture for 6 weeks,a total of 25 cases.Both groups received knee pain,functional assessment,and surface EMG acquisition before and after treatment.ResultsThere was no significant difference in general data between the two groups.The NPRS in the test group decreased significantly after1,3,6 weeks,and 3 months of follow-up compared to before treatment(P < 0.05).The NPRS in the control group had a significant decrease after 3 weeks and 6 weeks of treatment compared with before treatment(p<0.05).However,there was nosignificant difference in 3 months follow-up compared with before treatment(p>0.05);The knee active range of motion(AEMG)of the test group and the control group were actively increased after treatment than before treatment(p < 0.05),but after 6 weeks of treatment,the test group was significantly higher than that of the control group(p <0.05);Lysholm scores in the test and control groups were significantly higher than before treatment(P<0.05),but after 6 weeks and 3 months of follow-up,the test group was significantly higher than the control group(P <0.05).At 60 °/s,2 min isometric contraction,the experimental group(AEMG%)VMO / VL after treatment was significantly higher than before treatment(p <0.05),and the experimental group after treatment compared to before treatment Significantly increased(p<0.05),but at 180°/s,the experimental group had no significant difference(p>0.05)after treatment compared to before treatment.The MFslope of the rectus femoris,the internal femoral oblique,and the vastus lateralis muscle increased significantly after treatment for 6 weeks(p<0.05),but there was no significant difference between the groups(p>0.05).conclusionAcupuncture at the trigger points of quadriceps combined with stretching can rapidly relieve the pain in PFPS patients,improve the function of PFPS patients,and increase the knee flexion activity in PFPS patients.Acupuncture at the quadriceps trigger point with stretching can improve the coordination of the internal oblique and vastus lateralis muscles,increase the VMO/VL of PFPS patients at slow and isometric contractions,but can not improve the rapid contraction VMO/VL.Acupuncture at the quadriceps trigger point with stretching can improve the fatigue resistance of the rectus femoris,the internal oblique femoral and the vastus lateralis. |
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