• Title/Summary/Keyword: Nucleus Pulposus

Search Result 82, Processing Time 0.031 seconds

Photoelastic analysis of the Stress distribution on an intervertebral disc (추간판 응력분포에 대한 광탄성 해석)

  • Shin, Hyun-Kug;Lee, Jae-Chang;Ahn, Myun-Whan;Ahn, Jong-Chul;Ihn, Joo-Chul
    • Journal of Yeungnam Medical Science
    • /
    • v.6 no.2
    • /
    • pp.223-239
    • /
    • 1989
  • To observe the change in the status of stresses according to three different postural angulation of an intervertebral disc with or without nucleus pulposus, 6 specimens of a 3-dimensional photoelastic model of the s pine were made of epoxy. The nucleus pulposus portion was replaced with silicon in three models, and the three were made without silicon. Through axial application of a vertical compressive load of 8kg, the peculiar patterns of the isochromatic fringes were observed. Stresses on the intervertebral disc were analyzed according to three different postural angulations of the intervertebral disc with the nucleus pulposus and without the nucleus pulposus. The results of these study are as follow : 1. In an erect neutral posture with the nucleus pulposus, the stress concentration was much increased at the posterior portion rather than at the anterior portion. Also, the high stress was concentrated at the medial and central portion. In an erect neutral posture without the nucleus pulposus, the stress concentration was much increased at the anterior portion rather than at the posterior portion and the stress distribution seemed to be locally concentrated. 2. In a maximal flexed posture, the stress concentration was much increased at the posterior portion rather than at the anterior portion. Comparing the presence of the nucleus pulposus with the absence of the nucleus pulposus, the stress concentration was lower at the anterior portion in the presence of the nucleus pulposus than in the absence of the nucleus pulposus. However, the stress distribution at the posterior portion was nearly same in the two groups. According to the analysis of the stress distribution diagram, as a whole, the stress pattern around the disc was evenly distributed. 3. In a maximal extended posture, the higher concentration of the stress distribution at the anterior and medial portion rather than in the posterior and lateral portion was observed. The stress concentration was higher in the presence of the nucleus pulposus than in the absence of the nucleus pulposus. 4. Comparing the maximal flexed posture with the erect neutral posture, the stress concentration in the flexed posture was much decreased in the posterior portion rather than in the erect neutral posture, and an even distribution of the stress pattern in the flexed posture was observed. 5. In the presence of the nucleus pulposus, at the anterior and posterior portion, the stress concentration in the flexed posture was much decreased compared with the extended posture. In the absence of the nucleus pulposus, at the anterior and posterior portion, the stress concentration in the extended posture was much decreased compared with the flexed posture.

  • PDF

Investigation on Common-Using Technique of Chinese Chuna Manipulations for Herniated Nucleus Pulposus (요추간판탈출증(腰推間板脫出症)에 상용(常用)되는 중국추나(中國推拿) 기법(技法)에 관(關)한 연구(硏究))

  • Han, Moo-Gyu;Heo, Su-Young;Choi, Jin-Man
    • The Journal of Korea CHUNA Manual Medicine
    • /
    • v.1 no.1
    • /
    • pp.103-117
    • /
    • 2000
  • The manipulations are the main therapheutic procedure of Chuna. Manipulation is the essential procedure of Chuna theraphy. On the basis of touch parts and motion changes, each elementary manipulation is divided into Stimulating Manipulations (reflexional manipulations) and Mobilizing Manipulations. Objectives: This study were advanced so as to know Chinese Chuna Manipulations especially on Herniated Nucleus Pulposus. Methods We Investigated Chinese medicine paper about Chinese Chuna Manipulations on Herniated Nucleus Pulposus between 1996 and 1999. Results. Chinese Chuna theraphy, Pressing Manipulations and Thrusting-Wrenching Manipulations are mostly used on Herniated Nucleus Pulposus, and Chinese Chuna theraphy carrys out Traction, Injection. Chinese medicine. Acupuncture side by side. Conclusions: Chinese Chuna theraphy uses not only Mobilizing Manipulations, but also Stimulating Manipulations whereas Korean Chuna theraphy chiefly uses Mobilizing Manipulations.

  • PDF

A Comparison of Lumbar Lordotic Curves between Herniated Nucleus Pulposus Patients and Normal Subject Using a Flexible Curve Ruler

  • Jung, Yong-Mi;Choi, Jong-Duk
    • The Journal of Korean Physical Therapy
    • /
    • v.24 no.3
    • /
    • pp.208-215
    • /
    • 2012
  • Purpose: We attempt to assess the differences in the degree of lumbar lordosis in patients with lower back pain caused by the herniation of the nucleus pulposus and in normal people (divided into male and female groups). Methods: This study was conducted with 14 patients (7 males, 7 females) diagnosed with, and being treated for, lumbar herniated nucleus pulposus and 14 normal people (7 males, 7 females). In order to examine the degree of lumbar lordosis in these subjects, hip flexor lengthening tests were conducted and the lumbar curves were measured in three postures (supine, sitting, and prone) and the results were compared. Results: The measured values of the curves for the standing and prone postures showed statistically significant differences between the normal group and the patient group, between the normal male group and the male patient group, and between the normal female group and the female patient group (p<0.05). Conclusion: The measurement method that uses flexible curve rulers in the standing or prone postures can be usefully utilized in assessing the lumbar lordosis of patients with lumbar herniation of the nucleus pulposus.

Cervical and Lumbar Herniated Nucleus Pulposus Resorption after Acupotomy with Integrative Korean Medicine Treatment: A Case Series of Two Patients

  • Lee, Ye Ji;Kim, Jae Ik;Kim, Hyo Bin;Jeon, Ju Hyun;Kim, Eunseok;Kim, Young Il
    • Journal of Acupuncture Research
    • /
    • v.36 no.2
    • /
    • pp.107-112
    • /
    • 2019
  • The aim of this study was to report on the resorption of herniated nucleus pulposus following acupotomy treatment. Two patients were treated with acupotomy which included integrative Korean Medicine treatment, for either cervical, or lumbar herniated nucleus pulposus. Magnetic Resonance Imaging was used to produce images before and after (several months) treatment. The Numerical Rating Scale scores and Range of Motion were used to assess the patients at admission and discharge. In both cases, substantial resorption of the respective herniated disc was observed in the magnetic resonance images, with a decrease in the Numerical Rating Scale score. Range of Motion improved in 1 case. This study shows that acupotomy treatment may be a clinically effective treatment for herniated nucleus pulposus resorption and pain relief.

A Case of Osteoid Osteoma Diagnosed during Treatment of Herniated Nucleus Pulposus (요추 추간판 탈출증의 통증치료시 발견된 유골골종 -증례 보고-)

  • Ro, Man-Seog;Gang, Hoon-Soo;Kim, Jeong-Ho
    • The Korean Journal of Pain
    • /
    • v.10 no.2
    • /
    • pp.262-265
    • /
    • 1997
  • We experienced a case of osteoid osteoma in thoracic vertebra accompanied with herniated nucleus pulposus during the management of back pain. A 32 year old male patient with herniated nucleus pulposus complained of back pain and radiation to right leg. Lumbar epidural block with 1% mepivacaine 5 ml was performed for pain control and it relieved the radiating pain. However patient continued to experience severe exacerated back pain at night which responded to aspirin. Therefore we performed further examination for existence of disease of the spine and diagnosed osteoid osteoma in the right pedicle of T12 vertebra. In conclusion, we recommend physicians when evaluating patients with back pain to be congnizant of possible existence of neoplastic disease of the spine and incorporate it in differential diagnosis.

  • PDF

Effectiveness of Bee-venom Acpuncture and Ouhyul Herbal Acpuncture in Herniation of Nucleus Pulposus-comparison with Acpuncture Therapy Only (요각통(腰脚痛)에 대한 단침치료군(單鍼治療群), 봉약침(蜂藥鍼) 병행치료군(竝行治療群), 중성어혈약침(中性瘀血藥鍼) 병행치료군(竝行治療群)의 비교연구)

  • Lee, Sung-Hwan;Kang, Min-Wan;Lee, Hyun;Lee, So-Yol
    • Journal of Acupuncture Research
    • /
    • v.24 no.5
    • /
    • pp.197-205
    • /
    • 2007
  • Objectives : Herniation of Nucleus Pulposus(HNP) of Lumbar is the most important that causes low back pain. The aim of this study is to compare several therapies about Lumbar spine Hearniated Nucleus Pulposus in oriental Medecine which are Bee-venom Acpuncture and Ouhyul Herbal Acpuncture. Methods: Subjects of this research were 60 inpatients complaining Herniation of Nucleus Pulposus, and who were diagnosed as bulging disc, disc protrusion or extrusion with CT & MRI. 20 patients in each, 3 groups; Acpuncture therapy only, Bee-venom Acpuncture, and Ouhyul Herbal Acpuncture, were divided and the conclusions for treatment are as follows. Results : 1. Regarding alleviation of pain by VAS, Ouhyul Herbal Acpuncture Group III showed significant decrease of VAS in the early period of admission(5days), while Bee-venom Acpuncture Group II showed higher score of VAS compared to Acpuncture therapy only Group I. 2. On contrary, in the latter period of admission($5{\sim}9days$), Bee-venom Acpuncture Group II showed significantly higher rate of improvement than the other groups. 3. On the 9th admission day, Bee-venom Acpuncture Group II and Ouhyul Herbal Acpuncture Group III showed higher improvement than Acpuncture therapy only Group I. Between group II and III, Group II showed higher improvement rate. Conclusions : In this study, there were different effects among three groups according to period of treatment. Further study on various traatment for Herniation of Nucleus Pulposus required.

  • PDF

Clinical Study on a Case of Herniation(Herniated) of Nucleus Pulposus with Sacro-Occipital Technique (Sacro-Occipital Technique를 통한 추간판 탈출증 환자 치험 1례에 대한 임상적 고찰)

  • Park, Min-Jie;Sung, Su-Min;Hwang, Min-Seop;Yun, Chong-Hwa;Park, Min-Jung;Kim, Jung-Uk
    • The Journal of Korea CHUNA Manual Medicine
    • /
    • v.6 no.1
    • /
    • pp.189-196
    • /
    • 2005
  • Objectives : This report intended to estimate effect taken by using Sacro-Occipital Technique on the patient with Herniation of Nucleus Pulposus(Central type). Method : From 11 May, 2005 to 30 June, 2005. The patient recived Sacro-Occipital Technique and Acupuncture therapy. Result : After being hospitalized for 50 days. the patient's Motor Grade, ODI, VAS, ROM were improved each from IV to IV+. from 26 to 20, from 10 to 2, and ROM with flexion/entension, rotation were improved each from 70'/0' to 90'/12', from 30'/40' to 45'/55'. Conclusion : We considered Sacro-Occipital Technique has an useful effect on Herniation of Nucleus Pulposus

  • PDF

Low Level Laser Therapy for Two Patients with Herniated Nucleus Pulposus (척추 추간판 탈출증의 저출력 레이저에 의한 치험 2예)

  • Kim, Young-Choo;Kim, Hae-Gyu;Baik, Seong-Wan;Kim, Inn-Se;Jung, Kyoo-Sub
    • The Korean Journal of Pain
    • /
    • v.4 no.1
    • /
    • pp.51-55
    • /
    • 1991
  • There is a variety of therapeutic modality for herniated nucleus pulposus. Recently the low level laser has come into use for treatment for it. We treated two patients suffered from herniated nucleus pulposus of the central type of $L_{3,4}$ level, with He-Ne, $CO_2$ and Ga Al As laser simultaneously daily under hospitalization. In order to determine the efficacy of treatment, we used the "visual analogue scale" and its improvement rate. The results were as follows; Case I complained of gait disturbance, and hypoesthesia on the lateral side of the left lower leg, as and as low back pain. At the 15th day after treatment, VAS improvement rate was 40%, and the gait disturbance and hypoesthesia were markedly improved. 35th days after tratement, VAS improvement rate was 80%. Case II complained only of low back pain. At the 15th day after treatment, the VAS improvement rate was 68%, and at 20 days after treatment it was 84%. We sugsest that, using the low level laser for treatment of herniated nucleus pulposus increased the cartilage entrophism, and inhibitory effects of the inflammatory materials such as acid glycosaminoglycan by its anti-inflammatory and analgesic effects.

  • PDF

Case Analysis of the Effects of Nucleoplasty and Chemonucleolysis on the Intervertebral Disc (척추의 추간판에 대한 수핵성형술과 화학적수핵융해술의 영향 증례분석)

  • Hong, Youngki
    • Archives of Orthopedic and Sports Physical Therapy
    • /
    • v.14 no.2
    • /
    • pp.73-80
    • /
    • 2018
  • Purpose: This study was evaluated the effects of nucleoplasty and chemonucleolysis, as interventional treatments for herniated intervertebral disc disease, on spinal tissues. Methods: Nucleoplasty using plasma beam and chemonucleolysis with collagenase were conducted on the spinal motion segments that were dissected from of human cadaver spine under fluoroscopic guidance. After the procedure, the intervertebral discs were transected, and the changes in gross findings were examined. Subsequently, the influence of the procedure on the nucleus pulposus, annuls fibrosus, and endplate was analyzed through a pathologic examination. Results: Nucleoplasty was confirmed to eliminate the local range of tissues in nucleus pulposus according to the procedure tract and to not affect other tissues. In chemonucleolysis, we found that collagenase diffused from the surgical site within the nucleus pulposus and was not present in the annulus fibrosus and endplate. Conclusions: The clinically-used interventional treatments that were investigated here were not found to do not cause additional damage to areas other than those targeted.

Injectable Hydrogel as an Artificial Nucleus Pulposus in a Degenerative Intervertebral Disc (Injectable Hydrogel을 이용한 인공 Nucleus Pulposus의 제조)

  • Park, Jin-Hyun
    • Proceedings of the Korean Fiber Society Conference
    • /
    • 2002.04a
    • /
    • pp.13-16
    • /
    • 2002
  • The Intervertebral disc is a composite structure made up of the nucleus pulposus (NP) core surrounded by the multi-layered fibers of the annulus fibrosis (AF)[1]. Water is drawn into the NP by the presence of hydrophilic proteins called proteoglycans [2]. The AF, with successive layers oriented in alternating directions, surrounds the NP. These layers are placed under tension as the NP absorbs water and swells [3]. (omitted)

  • PDF