Appendix 2. Chronbach’s alpha statistics for knowledge topic and procedure item scales

KNOWLEDGE TOPIC SCALES / Cronbach’s statistic
Fingertip/digital amputations / 0.9
Complex Regional Pain Syndrome / *
Osteoarthritis: knowledge / *
Inflammatory arthritis: knowledge / *
Compartment syndrome / *
Congenital conditions / 0.9
Contractures/Spasticity/Stiffness/Weakness / 0.8
Dupuytren disease / *
Fracture/dislocation/malunion/nonunion: metacarpal/phalangeal / 0.8
Fracture/dislocation/malunion/nonunion: carpus / 0.8
Fracture/dislocation/malunion/nonunion: distal radius/ulna / 0.9
Fracture/dislocation/malunion/nonunion: forearm / 1.0
Infections: soft tissue / 0.9
Infections: joint / *
Infections: bone / *
Injections and extravasation / *
Joint instability: hand / 0.7
Joint instability: wrist / 0.8
Essex-Lopresti injury / *
Interphalangeal/metacarpophalangeal joint derangement / *
Scaphoid/lunate avascular necrosis / 0.7
Ulnar nerve compression syndromes / *
Median nerve compression syndromes / *
Radial nerve compression syndromes / *
Acute open wounds / *
Chronic open wounds / *
Swanneck/boutonniere deformity / 0.9
Tendon trauma / *
Extensor synovitis / *
Flexor synovitis / *
Tumors / 0.8
Occlusion/spasm/malformations/trauma/aneurysms: vascular / 0.9
PROCEDURE SCALES
Thumb/digital replant / *
Amputations/fingertip repair/hand flaps / 0.8
Forearm/wrist blocks / *
Intravenous block / *
Osteoarthritis: steroid injections / *
Osteoarthritis: digits / 0.7
Osteoarthritis: carpus / 0.8
Osteoarthritis: radius/ulna / 0.8
Osteoarthritis: simple trapeziectomy / *
Osteoarthritis: ligament reconstruction/tendon interposition / *
Osteoarthritis: CMC arthrodesis / *
Osteoarthritis: CMC prosthetic arthroplasty / *
Osteoarthritis: CMC volar ligament repair / *
Synovectomy: inflammatory arthritis / *
Compartments decompression/external neurolysis / 0.8
Syndactyly/supernumerary digit/trigger thumb / 0.8
Tenolysis/capsulectomy/tendon transfers / 0.8
Fasciotomy (Dupuytren) / *
Dermofasciectomy/fasciectomy (Dupuytren) / *
Needle aponeurectomy (Dupuytren) / *
Collagenase injection (Dupuytren) / *
Revision (Dupuytren) / *
PIP†† joint release (Dupuytren contracture) / *
CRPP‡/ORIF‡‡/ex-fix‡‡‡: hand / 0.7
CRPP‡/ORIF‡‡/ex-fix‡‡‡: carpal/distal radius and ulna / 0.9
ORIF‡‡: forearm / *
Infection: incision and drainage: soft tissue / 1.0
Infection: sequestrectomy/arthrotomy / 0.7
Debridement: injection injuries / *
Intercarpal repair/carpal fusion/wrist athroscopy / 0.8
VBG∆/fusion/denervation: avascular necrosis / 0.7
Peripheral Nerve repair/reconstruction / 0.9
Primary open carpal tunnel release / *
Redo open carpal tunnel release / *
In-situ ulnar nerve decompression / *
Ulnar nerve transposition / *
Radial nerve decompression / *
Soft tissue defect reconstruction (no free tissue transfer) / 0.7
Tendon conditions: swanneck/boutonniere repair / 0.9
Tendon conditions: trigger finger release/DeQuervain release/ tenosynovectomy / 0.8
Tendon conditions: tendon repair / *
Tendon conditions: tendon reconstruction / *
Tendon conditions: tendon transposition / *
Biopsy/excision: soft tissue/nail bed tumors / 0.7
Biopsy/curettage/excision/amputation: bone tumors / 0.8
Vascular repair/reconstruction / 0.8
Microsurgery / 0.8

*These items were analyzed individually either because Cronbach’s alpha statistic was < 0.7 when factored with related items or there was no variance in responder exposure rating i.e. all responders reported the same exposure rating for an item.

† CMC: carpometacarpal

†† Proximal inter-phalangeal

‡ Closed reduction percutaneous pining

‡‡ Open reduction internal fixation

‡‡‡ External fixation

∆ Vascularized bone graft