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Table 4 Summarization of the published articles and the current study regarding the role of Böhler’s angle in assessing the injury severity and functional outcome for displaced intra-articular calcaneal fracture

From: Bohler’s angle’s role in assessing the injury severity and functional outcome of internal fixation for displaced intra-articular calcaneal fractures: a retrospective study

No. Cases (n) Treatment (n) Follow up (year, average (range)) Correlation
Operation Conservation
1 45 33 18 4.5 (1–11) A loss of Böhler’s angle measured at follow ups was associated with a poor clinical outcome [27].
2 44 52 0 4-14 The ratio of Böhler’s angle of the fractured side to that of the normal side was significantly lower in patients with unsatisfactory outcomes at final follow up evaluation [28].
3 43 47 0 1 Böhler’s angle measured at the final follow-up did not correlate with the clinical result [20].
4 63 30 33 5.1 No correlation between Böhler’s angle and final functional outcomes [23].
5 88 44 44 2 There was a significant negative correlation between change in Böhler’s angle (angel measured at 3-month minus angle at the time of injury) and SF-36 score in surgical group [13].
6 70 29 41 6.5 (4–15) Patients with displaced fractures had a good outcome following operative treatment with restored Böhler’s angle>10 degrees [22].
7 26 15 11 15 (11–18) No correlation between Böhler’s angle and functional outcome [14].
8 16 16 0 2 (1–4) No correlation between good restoration of Böhler’s angle and high functional score [29].
9 47 47 0 10 (7–15) Restoration of Böhler’s angle ≥30 degrees was associated with a better outcome [21].
10 274 274 0 6 (4–8) The preoperative Böhler’s angle has a significant correlation with Sanders classification. The postoperative Böhler’s angle has a significant correlation with the final functional outcome (The current study).