3D Shoulder Ultrasound Visualiser — Carl Hancock (Oct 2026)

Lift Angle 25°

Int. Rotation

✓ Subacromial Tunnel Clear (Low Angle)

0° 30° ⚠️ 60° (Painful Arc) 💥 90° (Peak Pinch) ⚠️ 120° 150°

Live Mechanical Telemetry

Subacromial Clearance

6.4 mm

Bursal Compression

12% (Low)

1. Ultrasound Findings (Click to Inspect)

A. 8 mm Supraspinatus Calcification

Primary Culprit

A substantial 8 mm chalky calcium deposit embedded inside the top rotator cuff tendon (supraspinatus). Acts like a small pebble colliding with the bony roof above when lifting your arm, and triggers chemical night-ache flares.

B. Subacromial Bursitis

Inflammatory Flare

The fluid-filled cushion (bursa) between the Acromion bone roof and the Supraspinatus tendon. Repeatedly pinched by the 8 mm lump underneath, causing the classic 60°–120° painful arc.

C. Subscapularis Tendinopathy

Compensatory Strain

Micro-strain and disorganised collagen fibres (not a tear) in the front rotator cuff tendon. Works overtime to stabilise the ball-and-socket joint during internal rotation (reaching behind your back or tucking in a shirt).

D. Clicking, "Needs to Crack" & "Popping Candy"

Crepitus & Catch

1. Single Click (~70° & ~110°): The 8 mm calcium lump + thickened bursa catches on the lip of the Acromion roof and snaps past it.

2. "Popping Candy" Burst (Bursal Crepitus / Micro-Adhesions): Chronic inflammation makes the fluid inside the subacromial bursa sticky with tiny fibrin strands and micro-adhesions (like tiny bubble-wrap pockets). When the 8 mm lump rolls across the bursa under tension — or when a crusted edge of the chalky deposit shifts — a whole cluster of micro-adhesions pops at once.

3. Why it feels like it "needs to crack": Bursal swelling + tight front subscapularis pull slightly off-centres the joint. Avoid forcing it so you don't grind the calcium into the bursa.

2. NHS Treatment Pathway Simulator

Current Scan State: The 8 mm calcium deposit bulges upward from the supraspinatus tendon, pinching the swollen bursa between 60° and 120°.

3. Anatomical Layer Controls

X-Ray Acromion Roof Subacromial Bursa Supraspinatus + 8mm Subscapularis (Front) Night-Ache Halo

Carl Hancock — 3D Shoulder Model