Table 8.
The evaluation of hip survival
| Study | Rate of convention to arthroplasty (arthroplasty/total hips) | Method of report in original studies | Survival rate (based on the definition in original studies) | Definition of hip-preservation failure in individual study | Survival rate based on stage |
|---|---|---|---|---|---|
| 2016/Zhaoa [21] | 0% | NA | NA | NA | NA |
| 2016/Chen [24] | 14.06% (9/64) | Survival curve | 81.25% | The collapse of the femoral head was larger than 4 mm, with significant osteoarthritis; or hip replacement | NA |
| 2014/Elmali [25] | 19.23% (5/26) | Reported cases of arthroplasty | NA | NA | NA |
| 2009/Chen [26] | 75.76% (25/33) | Survival curve | 24.24% | Conversion to replacement arthroplasty |
ARCO IIIB, 0% ARCO IIIA, 30.77% |
| 2009/Babhulkar [28] | 3.23% (1/31) | Reported cases of arthroplasty | NA | NA | NA |
| 2009/Baksi [27] | Fail to recalculate | Survival curve | 83.97% | Radiological deterioration, resulting in the reduction of the clinical HSS score to below 20, requiring subsequent operative intervention |
Ficat II, 91% Ficat III, 82% |
| 2006/Yenb [22] | 10.26% (4/39) | Reported cases of arthroplasty | 10.26% | Conversion to replacement arthroplasty |
Steinberg III, 75% Steinberg IV, 93.75% |
| 2006/Zhao [29] | 6.19% (14/226) | Reported cases of arthroplasty | 93.81% | Conversion to replacement arthroplasty | NA |
| 2004/Nagoya [30] | NA | NA | NA | NA | NA |
| 2003/Hasegawab [23] | 6.45% (2/31) | Survival curve |
5Y, 85% 10Y, 67% |
The development of symptoms requiring arthroplasty or a Harris hip score of less than 70 points as the endpoint | NA |
| 2001/Eisenschenk [31] | 8.89% (8/90) | Reported cases of arthroplasty | NA | NA | NA |
| 1997/Hasegawa [33] | 3.23% (1/31) | Survival curve |
Satuation 1: 3Y, 70%; 5Y, 60% satuation 2: 3Y, 60%; 5Y, 50% |
Satuation 1: overall clinical score of less than 70 points or conversion to an endoprosthesis satuation 2: radiographic stage further than stage III-B (collapse by more than 5 mm) |
NA |
| 1997/Ishizaka [32] | 9.68% (3/31) | Reported cases of arthroplasty | NA | NA | NA |
| 1996/Leung [35] | 4.76% (1/21) | Reported cases of arthroplasty | NA | NA | NA |
| 1996/Wassenaar [34] | 8.33% (1/12) | Reported cases of arthroplasty | NA | NA | NA |
| 1993/Iwata [36] | 4.35% (1/23) | Reported cases of arthroplasty | NA | NA | NA |
NA not available
aThe evaluation combined two groups
bThe evaluation of the VPIBG group