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Table 4 Incidence rate of bone union with and without presence of a lateral hinge fracture 3 months postoperatively

From: Effect of lateral hinge fractures for bone union and clinical outcomes following opening-wedge distal tibial tubercle osteotomy in comparison with opening-wedge high tibial osteotomy

Bone union

LHF (-)

LHF ( +)

OWDTO (n = 23)

OWHTO (n = 30)

OWDTO (n = 27)

OWHTO (n = 20)

Anterior

18 (78%)

26 (87%)

7 (26%)*

16(80%)

Lateral

23 (100%)

30 (100%)

11 (41%)

9 (45%)

  1. Between-group p-value evaluated using the chi-squared test (χ2); LHF (-), absence of a lateral hinge fracture; LHF ( +), presence of a lateral hinge fracture
  2. OWDTO opening-wedge distal tibial tubercle osteotomy, OWHTO opening-wedge high tibial osteotomy
  3. *p < 0.05 versus an OWDTO in the corresponding group