Certified Hand Therapist (CHT) Practice Exam

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What is considered functional flexion for the PIP joint?

35 degrees
50 degrees
60 degrees
70 degrees

The correct answer is: 60 degrees

Functional flexion for the PIP (proximal interphalangeal) joint is typically defined around 60 degrees. This range is important because it represents the minimum amount of flexion required for effective grasp and grasping activities. Achieving at least 60 degrees of flexion allows individuals to perform daily tasks involving the hand, such as holding small objects, writing, or manipulating tools. While other values may be applicable in different contexts, they do not align as closely with the functional requirements needed for everyday hand use. Understanding this threshold is crucial for rehabilitation and therapy planning, especially for patients recovering from injuries affecting hand function or for those with conditions that impair joint mobility.