The Obstinate PIP Joint
This series thoroughly explores the anatomy of the PIP joint, causes of stiffness, and practical treatment approaches to resolve stiffness. Innovative solutions for joint motion deficits include the new concept of active redirection. Video demonstrations of orthotic construction include 1) three active redirection orthoses, 2) a finger gutter orthosis, and 3) a unique serial casting technique.
The Obstinate PIP Joint: Part 1 of 12: Anatomy & Normal Mechanics
A brief examination of the relevant anatomy and normal movement of the finger PIP joint.
The Obstinate PIP Joint: Part 2 of 12: Extension Restrictions
An explanation of why extension is so challenging to maintain at the PIP joint following injury.
The Obstinate PIP Joint: Part 3 of 12: Drivers of PIP Joint Extension
A review of the tendinous system responsible for PIP joint extension.
The Obstinate PIP Joint: Part 4 of 12: Role of EDC in PIP Joint Extension
A review of the role of the extensor digitorum communis in PIP joint extension.
The Obstinate PIP Joint: Part 5 of 12: Evaluating PIP Joint Tightness
How to evaluate PIP joint tightness.
The Obstinate PIP Joint: Part 6 of 12: Regaining PIP Joint Extension
How to regain active PIP Joint extension.
The Obstinate PIP Joint: Part 7 of 12: PIP Serial Static Extension Orthosis (Construction Demo)
Demonstration of construction of a plaster of Paris serial static orthosis for PIP joint extension.
The Obstinate PIP Joint: Part 8 of 12: PIP Static/Serial Static Extension Orthosis (Demonstration)
Demonstration of construction of a thermoplastic serial static orthosis for PIP joint extension.
The Obstinate PIP Joint: Part 9 of 12: PIP Static Progressive/Dynamic Extension Orthoses (Discussion)
Review of designs for PIP static progressive and dynamic PIP joint extension orthoses.
The Obstinate PIP Joint: Part 10 of 12: Active Redirection for PIP Joint Extension (Discussion)
A discussion of the concept of active redirection of motion to regain PIP joint extension, including the use of relative motion orthoses.
The Obstinate PIP Joint: Part 11 of 12: Active Redirection for PIP Joint Flexion (Demonstration)
A discussion of the concept of active redirection of motion to regain PIP joint flexion, including a construction demo of a relative motion orthosis.
The Obstinate PIP Joint: Part 12 of 12: Key Points about the PIP Joint
A review of key points discussed in this series.