Table 4.

Distribution of implanted stems, according to fixation and design

Stem	Relative value	n. implants
Straight cemented stem	1.00	1476
473 LC Samo,
344 AHS Cremascoli,
198 Definition Howmedica,
169 Exeter Howmedica,
103 Gemini De Puy,
70 self-locking Sulzer,
other types with less than 50 implants each
Anatomic cemented or straight cemented with particular design	1.16	423
228 Elite De Puy,
191 Lubinus SP 2 Link,
other types with less than 100 implants each.
Straight cementless	1.88	782
502 Cone prosthesis Sulzer,
120 Meridian Howmedica,
85 CLS Sulzer,
62 Metabloc Sulzer,
other types each with less than 50 implants.
Surface treated or anatomic cementless	2.10	1101
567 Anca Cremascoli,
194 Duofit RKT Samo,
125 PCA Howmedica,
98 Citation Howmedica,
77 AML Depuy stems
other types each with less than 50 implants
Modular cementless	2.46	968
869 Anca Fit Cremascoli,
86 Dual fit Cremascoli stems,
other types each with less than 10 implants
Total		4750