Background: Pyogenic flexor tenosynoitis is a closed space infection inoling the digital flexor tendon sheaths of the upper extremity that can cause considerable morbidity.

• 背景资料：化脓性屈肌腱鞘炎是一种包括上肢指屈肌腱鞘炎在内闭合性感染，可导致相当的致残率。