Bohler's angle: correlation with outcome in displaced intra-articular calcaneal fractures.
OBJECTIVE
Bohler's tuber joint angle is commonly assessed when evaluating calcaneal fractures. A severe heel fracture will result in a significant decrease or loss of this angle. The purpose of this study was to evaluate the correlation between Bohler's angle and functional outcome in displaced intra-articular calcaneal fractures.


METHODS
Prospective cohort study.


METHODS
Level I trauma center.


METHODS
Ninety-five fractures in eighty-eight patients were analyzed for clinical outcome as measured by previously validated visual analogue scale (VAS) and SF-36 Health Survey scores. Radiographic results were measurements of Bohler's angle on plain x-rays. Angles were measured twice by two observers working independently.


RESULTS
This prospective randomized cohort study indicates that patients initially presenting with a severely depressed Bohler's angle have a poor two-year outcome regardless of treatment. As well, fractures of lesser initial displacement, as measured by Bohler's angle, had higher functional scores on both VAS and SF-36 scoring scales.


CONCLUSIONS
In this study, Bohler's angle had significant prognostic value in terms of predicting morbidity. Fractures with a markedly diminished Bohler's angle demonstrated a much poorer two-year outcome regardless of treatment. It would seem that the initial Bohler's angle was highly prognostic, regardless of treatment modality.
Loucks
C
C
University of Calgary, Alberta, Canada.
Buckley
R
R
D000843:Ankle Joint / Q000473:pathology*; D002111:Calcaneus / Q000293:injuries*; D050723:Fractures, Bone / Q000473:pathology / Q000601:surgery*; D006801:Humans; D011379:Prognosis; D011446:Prospective Studies; D016032:Randomized Controlled Trials as Topic; D016896:Treatment Outcome