"grade 1: delayed presentation - 4-8 weeks"
"grade 2: fibrous non-union - minimal fracture line; no cyst or sclerosis"
"grade 3: minimal sclerosis -"
"grade 4: cyst formation and sclerosis -"
"grade 5: cyst formation and sclerosis - 5-10 mm bone resorption with cyst formation; normal scaphoid alignment"
"grade 6: separate bone fragments with profound bone resorption; fragment motion and scaphoid deformity common"
"a: proximal pole non-union"
"b: osteonecrosis"
"c: ligamentous injury"
"d: deformity"
Expected headings
"Classification"
"Complications"
"grade 2: fibrous non-union - minimal fracture line; no cyst or sclerosis"
"grade 4: cyst formation and sclerosis -"
"grade 5: cyst formation and sclerosis - 5-10 mm bone resorption with cyst formation; normal scaphoid alignment"
"grade 6: separate bone fragments with profound bone resorption; fragment motion and scaphoid deformity common"