Table 1.
Numbers of patients and hospitals undergoing ankle arthrodesis or total ankle arthroplasty
| Year | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | Total |
|---|---|---|---|---|---|---|---|---|
| Ankle arthrodesis | 152 (80.4 %) | 223 (87.5 %) | 183 (85.1 %) | 293 (88.3 %) | 440 (82.4 %) | 524 (82.1 %) | 495 (80.9 %) | 2310 (83.2 %) |
| Total ankle arthroplasty | 37 (19.6 %) | 32 (12.5 %) | 32 (14.9 %) | 39 (11.7 %) | 94 (17.6 %) | 114 (17.9 %) | 117 (19.1 %) | 465 (16.8 %) |
| Total | 189 | 255 | 215 | 332 | 534 | 638 | 612 | 2775 |
| Data collection periods (months) | 6 | 6 | 6 | 9 | 12 | 12 | 12 | — |
| Number of enrolled hospitals in DPC | 898 | 855 | 901 | 980 | 1075 | 1057 | 1061 | — |
| Number of admissions in DPC (million) | 2.65 | 2.81 | 2.78 | 4.95 | 7.14 | 6.85 | 7.11 | 34.29 |