Ultrasound Characteristics of Clinically Dislocated But Reducible Hips With DDH

Conclusions: Analysis of a large cohort of patients with dislocated but reducible hips reveals a median percent FHC of 10%, a median α of 43 degrees, and a median β of 66 degrees on initial US. Using a threshold at the 90th percentile, a sensible ultrasonographic definition of a dislocated hip seems to be FHC≤33%, implying that FHC between 34% and 50% may be reasonably termed a subluxation. Although these findings are consistent with previous, smaller reports, further prospective research is necessary to validate these thresholds. Level of Evidence: Level IV—diagnostic study.
Source: Journal of Pediatric Orthopaedics - Category: Orthopaedics Tags: Hip Source Type: research