Table 3 Complications and reoperations within 12 months after ulna shortening osteotomy

No complication

38 (36% had no complications)

Grade I

29 complications in 29 patients (27% had a Grade I complication)

 Postoperative bleeding

1

 Scar tenderness

1

 Hardware irritation

16

 Hand therapy

  ECU luxation

1

  DRUJ instability

1

  Midcarpal laxity

1

  Radial tunnel syndrome

1

  Persistent ulnar sided wrist pain

1

 Splinting

  ECU tendinitis

1

  Impaired pronation

1

  Persistent ulnar-sided wrist pain

2

 Delayed union needing bone stimulation

2

Grade II

Three complications in three patients (3% of the patients had a Grade II complication)

 Corticosteroid injection

  Trigger finger

3

Grade IIIA

0 complications (% had a Grade IIIA complication)

Grade IIIB

48 complications in 39 patients (37% had a Grade IIIC complication)

 Refixation after nonunion

6

 Hardware removal

34

 Persistent ulnar-sided wrist pain

  TFCC reinsertion

1

  Pisiformectomy

1

  Neurolysis

1

 3-LT tenodesis

1

 Tenolysis

4

Grade IIIC

0 complications