🖐 Hand Osteoarthritis Functional Index Simulator

Distal Interphalangeal Joint Changes

Placeholder: DIP joints are the earliest and most common site of hand OA nodules.

• DIP joints: Most common site (Placeholder note)
• Heberden's: Node name (Placeholder note)
• Middle age+: Typical onset (Placeholder note)
• Female: Sex predominance (Placeholder note)

Node formation overview

Placeholder: osteophyte growth at DIP margins produces visible bony bumps.

Proximal Interphalangeal Joint Changes

Placeholder: PIP involvement follows DIP changes and adds mid-finger swelling.

• PIP joints: Site (Placeholder note)
• Bouchard's: Node name (Placeholder note)
• Less common: Frequency (Placeholder note)
• Finger stiffness: Effect (Placeholder note)

PIP node overview

Placeholder: PIP nodules reduce finger flexion range further.

Thumb Base Osteoarthritis

Placeholder: CMC joint OA causes thumb squaring and pinch weakness.

• 1st CMC: Joint (Placeholder note)
• Squared thumb: Sign (Placeholder note)
• Pinch pain: Symptom (Placeholder note)
• Grip decline: Impact (Placeholder note)

CMC involvement overview

Placeholder: thumb base arthritis compounds overall hand disability.

Grip Strength Assessment

Placeholder: dynamometer grip testing tracks functional decline over time.

• Dynamometer: Tool (Placeholder note)
• kg force: Metric (Placeholder note)
• Declining: Trend (Placeholder note)
• Track therapy: Use (Placeholder note)

Grip decline overview

Placeholder: weaker grip correlates with joint severity and pain.

Daily Task Difficulty Index

Placeholder: functional index summarizes difficulty across everyday hand tasks.

• Jar / button / write: Tasks (Placeholder note)
• Severity + grip: Score basis (Placeholder note)
• Care planning: Outcome (Placeholder note)
• AUSCAN-like index: Tool (Placeholder note)

Functional index overview

Placeholder: combined index guides splinting and therapy decisions.

Placeholder: higher combined scores indicate need for splinting and hand therapy.