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相关概念视频

Joints01:26

Joints

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Joints, also called articulations or articular surfaces, are points at which ligaments or other tissues connect adjacent bones. Joints permit movement and stability, and can be classified based on their structure or function.
Structural joint classifications are based on the material that makes up the joint as well as whether or not the joint contains a space between the bones. Joints are structurally classified as fibrous, cartilaginous, or synovial.
Fibrous Joints Are Immovable
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Local Anesthetics: Clinical Application as Spinal Anesthesia01:11

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Spinal anesthetics are given during lower abdomen and limb surgeries to block sensory and motor neurons. They are administered in the mid to low lumbar regions, primarily acting on the cauda equina's nerve roots. The blockade level depends on the local anesthetic (LA) concentration. Usually, low LA concentrations are sufficient to block sensory fibers, while only high LA concentrations block motor fibers. Other factors like injection volume and speed, the patient's posture, and the drug...
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Ultrasonography01:17

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Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
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Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin01:26

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Directly acting muscle relaxants like dantrolene and botulinum toxin (BoNT) have distinct mechanisms and applications. Dantrolene, a hydantoin derivative, acts on the ryanodine receptor (RYR1) in skeletal muscle cells. RYR1 are calcium channels present at the sarcoplasmic reticulum membrane. In response to excitation, they release calcium ions from the sarcoplasmic reticulum to the cytosol. Calcium promotes actin-myosin-mediated contraction of muscles.
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Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia01:16

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Intravenous regional anesthesia or the Bier block technique is used to anesthetize a specific limb or extremity. It uses exsanguinated or blood-drained vessels to transport local anesthetics or LAs to the peripheral nerve trunks. Lidocaine without vasoconstrictors like epinephrine is most commonly used for this technique. Other drugs used are prilocaine, ropivacaine, and chloroprocaine. Bupivacaine is not recommended for this technique due to its high cardiac toxicity.
One of the advantages of...
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Centrally Acting Muscle Relaxants: Therapeutic Uses01:24

Centrally Acting Muscle Relaxants: Therapeutic Uses

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Centrally acting muscle relaxants reduce muscle tone and tension by interfering with the postsynaptic reflexes in the central nervous system.
Centrally acting drugs are classified into spasmolytic and antispasmodic drugs. Spasmolytic drugs such as baclofen, diazepam, and tizanidine inhibit spinal motor neurons and decrease muscle tone. Spasmolytic drugs are administered for severe and chronic spasms due to multiple sclerosis, cerebral palsy, stroke, and spinal cord and muscle injuries. However,...
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相关实验视频

Updated: Jul 19, 2025

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关节和软组织注射.

Julie A Creech-Organ1, Sarah E Szybist2, Jacqueline L Yurgil3

  • 1Saint Louis University/Scott Air Force Base Family Medicine Residency, O'Fallon, Illinois.

American family physician
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概括
此摘要是机器生成的。

关节和软组织注射,诊断和治疗,提供有针对性的疼痛缓解和诊断. 虽然对于肌病等特定疾病有效,但对最佳结果至关重要的是仔细选择患者并考虑潜在的并发症.

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科学领域:

  • 肌肉骨医学 肌肉骨医学
  • 干预性疼痛管理是一种干预性疼痛管理.
  • 再生医学是一种再生医学.

背景情况:

  • 关节和软组织注射是诊断和治疗肌肉骨疾病的常见程序.
  • 这些注射可以广泛分为诊断和治疗类别.
  • 各种注射药物,包括皮质类固醇,氨基酸,乳糖前期治疗和富血小板血,用于治疗.

研究的目的:

  • 审查关节和软组织注射的诊断和治疗应用.
  • 讨论与这些程序相关的准确性,说明,禁忌和潜在并发症.
  • 突出直接可视化和优化保守治疗的重要性.

主要方法:

  • 关于诊断和治疗关节和软组织注射的当前文献的综述.
  • 分析不同注射剂及其在特定条件下的疗效.
  • 讨论手术准备,禁忌和潜在的不良事件.

主要成果:

  • 诊断注射使用局部麻醉或液体吸收来定位和分析疼痛.
  • 治疗注射包括皮质类固醇 (用于粘附性囊炎,紧张肌炎),氨酸 (限于膝关节OA),乳糖前期治疗 (用于肌病,退行性关节疼痛) 和富含血小板的血 (有效用于常见延伸肌病,膝关节关节炎).
  • 直接可视化提高了准确性;潜在的并发症包括疼痛,胀,缩和退化与重复使用皮质类固醇.

结论:

  • 关节和软组织注射是有价值的工具,当适当地用于特定的适应症.
  • 皮质类固醇注射有其局限性,特别是入内使用,以及重复注射的风险.
  • 富含血小板的血对特定疾病具有前景,而氨酸对膝关节关节炎的疗效有限. 应该优化保守的管理.