The capsular ligament is a sac surrounding the articular cavity of a freely movable joint and attached to the bones.

关节囊韧带是一种包围着某个自由运动关节的关节腔并连接到骨头上的关节囊。

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Capsular ligament: a tough membrane enclosing the joint and holds bones together.

囊状韧带：包围著关节的强韧膜，将骨块连起来。

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Conclusion a Highly significant linear correlation was found between the anterior capsular elasticity and the opening diameter in youth (age range: 19 ~ 40 years).

结论本年龄段内(19 ~ 40 a)前囊膜弹性与撕开口直径呈直线正相关。

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This was because she experienced a known side-effect called 'capsular contraction', when the tissue around the implant hardens causing discomfort and distortion.

BBC: PIP - one woman's story of replacing her leaking implants