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相关概念视频

Bone Remodeling and Repair01:31

Bone Remodeling and Repair

Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during bone...
Exercise and Muscle Performance01:27

Exercise and Muscle Performance

Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Chest Physiotherapy01:24

Chest Physiotherapy

Chest Physiotherapy (CPT) is a therapeutic technique used in respiratory care to improve ventilation, clear bronchial secretions, and enhance the efficiency of respiratory muscles. This therapy includes three primary procedures: postural drainage, percussion, and vibration. It can be performed on spontaneously breathing patients and those who are intubated and mechanically ventilated.
Purpose
CPT is primarily used for patients with excessive bronchial secretions who have difficulty clearing...
Healing II: Complications01:24

Healing II: Complications

Complications during healing arise when tissue repair is altered by local or systemic factors. These changes involve abnormal collagen deposition, altered biomechanics, and reduced vascular supply, impairing restoration of normal structure and function.Loss of FunctionScar tissue differs significantly from the original tissue it replaces. In the skin, fibrosis lacks adnexal structures such as hair follicles, sebaceous glands, and sweat glands. Their absence reduces tactile sensitivity, impairs...
Alterations in Muscle Tone ll01:12

Alterations in Muscle Tone ll

Alterations in muscle tone are common manifestations of neurological disorders and reflect dysfunction within different nervous system regions. Spasticity, paratonia, and dystonia represent distinct forms of hypertonia, each with unique mechanisms, clinical features, and diagnostic importance.CharacteristicsSpasticity happens from upper motor neuron lesions and is characterized by velocity-dependent resistance to passive movement. Clinical features include:Exaggerated deep tendon reflexesClonus...
Alterations in Muscle Tone lll01:11

Alterations in Muscle Tone lll

Rigidity and myotonia are distinct abnormalities of muscle tone that affect resistance and relaxation during movement. Although both involve altered muscle contraction, they arise from different neurological and muscular mechanisms.CharacteristicsRigidity is characterized by uniform resistance to passive movement across the entire range, independent of speed, affecting flexors and extensors equally. It may appear as lead-pipe rigidity (smooth, constant resistance) or cogwheel rigidity...

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在2区的进步和挑战 曲肌修复

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在"无人区" (第2区) 的曲肌修复具有挑战性. 手术技术和康复的进步显著改善了Zone 2曲肌损伤的结果.

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科学领域:

  • 整形外科手术 整形外科手术
  • 手部手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手术手 ...
  • 肌的修复 肌的修复

背景情况:

  • 柔区2或"无人区",对一次性肌修复提出了重大挑战.
  • 从历史上看,在2区曲肌手术后,高并发症率包括粘附,收缩和破裂是常见的.

研究的目的:

  • 审查2区曲肌修复目前的方法.
  • 讨论术后考虑,以优化2区曲肌损伤的结果.

主要方法:

  • 目前用于修复2区曲肌的手术技术的文献综述.
  • 检查接材料和操作方法的进步.
  • 对康复方案和滑轮管理策略的分析.

主要成果:

  • 改善了对肌愈合生物学的理解.
  • 开发更坚固的接材料和创新的外科手术技术.
  • 重点是明智的轮通风和早期的积极康复.

结论:

  • 由于多学科的进步,Zone 2曲肌修复的结果有所改善.
  • 目前的方法和术后护理对于在这个关键区域成功重建曲肌至关重要.