A Study That Surprised Us in THA for DDH

Subtrochanteric shortening osteotomy worked better among patients having THA for high-riding developmental dysplasia of the hip

A Study That Surprised Us in THA for DDH

What’s the Claim?

A small but well-done comparative study found that subtrochanteric shortening osteotomy was superior to trochanteric slide when performing THA in patients with high-riding (Crowe IV) developmental dysplasia of the hip. Shortening osteotomy delivered:

  • Greater improvement in Harris Hip Scores (by a mean difference of 12 points out of 100 [95% CI 7 to 17 points])
  • Greater improvement in leg-length correction (44 ± 8 mm and 38 ± 8 mm)
  • Lower risk of osteotomy nonunion (0% [0 of 22] versus 23% [5 of 22]) and less-frequent greater trochanteric pain (9% [2 of 22] versus 45% [10 of 22])

How’s It Stack Up?