Table 4.
Failure (clinical or radiographic) based on lesion size
| Study/year/design | Technique | Hips | Small (<15%) | Medium (15%–30%) | Large (>30%) | |||
|---|---|---|---|---|---|---|---|---|
| Hips | Failures | Hips | Failures | Hips | Failures | |||
| Yoon et al. [63] (2001) (R) | CD | 39 | 14 | 2 (14.3%) | 7 | 4 (57.1%) | 19 | 16 (84.2%) |
| Steinberg et al. [52] (2001) (P) | CD/NVG/EStim | 312 | 14% | 48% | 42% | |||
| Israelite et al. [19] (2005) (R) | UCD | 124 | 14%† | 48%† | 42%† | |||
| BCD | 152 | |||||||
| Mont et al. [38] (2004) (R) | CD/SD | 45 | ‡ | 12 | 7 | |||
| Yoo et al. [61] (2008) (R) | VFG | 124 | 27 | 0 (0%) | 38 | 3 (7.89%) | 59 | 10 (16.9%) |
| Kawate et al. [20] (2007) (R) | FVFG | 71 | 19 | 10 (52.6%) | 15 | 11 (73.3%) | ||
| Berend et al. [5] (2003)* (R) | FVFG | 224 | (21.1%) | (38.2%) | (38.2%) | |||
Mean followup = 4.89 years (minimum followup was used if no mean was provided); * in this study, small was defined as less than 25%; medium as 25% to 50%, and large as greater than 50%; †only Stage I and II hips included; ‡in the small and medium-sized groups: six failures in 33 hips (18.2%); P = prospective study; R = retrospective study; CD = core decompression; NVG = nonvascular graft; EStim = electrical stimulation; UCD = unilateral core decompression; BCD = bilateral core decompression; SD = multiple small-diameter drillings; VFG = vascularized fibular graft; FVFG = free vascularized fibular graft.