Table 3 Design characteristics of uncemented collared femoral stems by different manufacturers
From: Proximal femoral anatomy and collared stems in hip arthroplasty: is a single collar size sufficient?
Manufacturer | Stem Brand | Femoral neck angle (°) | Stem Size | Collar Size (mm) | ||
|---|---|---|---|---|---|---|
‘Standard’ | ‘Varus’ | ‘Standard’ | ‘Varus’ | |||
Depuy | Corail | 135 | 125 | 8–10 | 6 | 7.5 |
11 | 7 | 8 | ||||
12–14 | 7 | 9.5 | ||||
15 | 7 | 11 | ||||
16–20 | 8 | 12 | ||||
Smith and Nephew | Echelon | 131 | – | 11–19 | 7.5 | – |
Synergy | 131 | – | 9–17 | 7.5 | – | |
Tornier | Meije | 130 | 123 | 1–3 | 7 | 7 |
4–6 | 8 | 8 | ||||
7–10 | 9 | 9 | ||||
Serf | Hype | 130 | – | 1–11a | 5–7.5 | – |
Dedienne | Symbol | 130 | 120 | 1–2 | 6.5 | 8 |
3–4 | 7.5 | 9 | ||||
5–6 | 8.5 | 10 | ||||
7–8 | 9.5 | 11 | ||||
9–10 | 10.5 | 12 | ||||
Xnov | Cineos | 135 | 125 | 9–20 | 7 | 7 |