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関連する概念動画

Structural Joints: Synovial Joints01:16

Structural Joints: Synovial Joints

6.5K
Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
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Structural Joints: Fibrous Joints01:03

Structural Joints: Fibrous Joints

3.6K
Fibrous joints are a type of joint where the bones are connected by fibrous connective tissue. These joints provide stability and minimal to no movement between the articulating bones. There are three types of fibrous joints.
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...
3.6K
Structural Joints: Cartilaginous Joints01:17

Structural Joints: Cartilaginous Joints

3.9K
As the name indicates, at a cartilaginous joint, the adjacent bones are united by cartilage, a tough but flexible type of connective tissue. Unlike synovial joints, these types of joints lack a joint cavity and involve bones joined together by either hyaline cartilage or fibrocartilage.
There are two types of cartilaginous joints:
Synchondrosis
A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary...
3.9K
Joints01:26

Joints

35.5K
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
The bones of a...
35.5K
Introduction to Joints00:58

Introduction to Joints

4.7K
The adult human body usually has 206 bones, and except for the hyoid bone in the neck, each bone is connected to at least one other bone. Joints are the location where bones come together. Many joints allow for movement between the bones. At these joints, the articulating surfaces of the adjacent bones can move smoothly against each other. However, the bones of other joints may be joined by connective tissue or cartilage. These joints are designed for stability and provide little or no...
4.7K
Ankle Joint01:10

Ankle Joint

2.8K
The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...
2.8K

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Preliminary Study on Acupuncture Combined with Grain-sized Moxibustion for Treating Rheumatoid Arthritis with Finger Joint Pain
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近位指節間関節脱臼のパターン

Charles Bewsey1, Grey Giddins2

  • 1Exeter Medical School, University of Exeter, UK.

The Journal of hand surgery, European volume
|January 21, 2026
PubMed
まとめ

近位指節間関節(PIP関節)脱臼は、スポーツ中の若年男性および転倒後の高齢者に最も多く見られる。開放性脱臼は通常、示指と中指に関与し、フォローアップ率にはばらつきがあり、長期的な症状の可能性を示唆している。

科学分野:

  • 整形外科学、外傷学、生体力学

背景:

  • 指の近位指節間関節(PIP関節)脱臼は一般的な外傷である。効果的な管理のためには、PIP関節脱臼の人口統計学的および生体力学的特性の理解が不可欠である。

研究 の 目的:

  • 近位指節間関節(PIP関節)脱臼の人口統計学的および生体力学的特性を分析すること。PIP関節脱臼に関連する異なる患者集団および損傷パターンを特定すること。

主な方法:

  • 2年間にわたるPIP関節脱臼の後ろ向きレビュー。人口統計学的情報、受傷機転、脱臼方向、併存損傷、およびフォローアップ率を含むデータを収集した。画像評価を用いて脱臼方向を決定した。

主要な成果:

  • 74例のPIP関節脱臼を呈した成人患者(中央値年齢46歳)。症例の76%を男性が占め、脱臼は主に小指(43%)と薬指(34%)に影響を及ぼした。背尺側(49%)および背側(41%)脱臼が最も一般的であった。6例の開放性脱臼が発生し、主に示指と中指に関与した。

結論:

  • PIP関節脱臼は、若年男性(スポーツ関連、小指)と高齢者(転倒、中指)の2つの主要なグループに分けられる。開放性脱臼は通常背側であり、示指または中指に関与する。フォローアップ率は著しく異なり、約20%の患者が長期的な症状を経験する可能性があることを示唆している。
キーワード:
指の脱臼PIP関節手の外傷損傷パターン開放性脱臼近位指節間関節脱臼

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