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1.
Fig. 3

Fig. 3. From: Do Ceramic Femoral Heads Reduce Taper Fretting Corrosion in Hip Arthroplasty? A Retrieval Study.

Examples of stem taper fretting and corrosion scores for the CoCr head cohort are shown. The median score for this cohort was 3.

Steven M. Kurtz, et al. Clin Orthop Relat Res. 2013 October;471(10):3270-3282.
2.
Fig. 2

Fig. 2. From: Do Ceramic Femoral Heads Reduce Taper Fretting Corrosion in Hip Arthroplasty? A Retrieval Study.

Some examples of stem taper fretting and corrosion scores for the ceramic head cohort are shown. The median score for this cohort was 2.

Steven M. Kurtz, et al. Clin Orthop Relat Res. 2013 October;471(10):3270-3282.
3.
Fig. 4

Fig. 4. From: Do Ceramic Femoral Heads Reduce Taper Fretting Corrosion in Hip Arthroplasty? A Retrieval Study.

A boxplot illustrating femoral stem taper fretting and corrosion score versus stem alloy for the ceramic and metal head cohorts is presented.

Steven M. Kurtz, et al. Clin Orthop Relat Res. 2013 October;471(10):3270-3282.
4.
Fig. 1

Fig. 1. From: Do Ceramic Femoral Heads Reduce Taper Fretting Corrosion in Hip Arthroplasty? A Retrieval Study.

The femoral stem taper fretting and corrosion damage scores for the matched ceramic and CoCr head cohorts are shown. The damage scores were significantly lower for the ceramic cohort (p = 0.03).

Steven M. Kurtz, et al. Clin Orthop Relat Res. 2013 October;471(10):3270-3282.
5.
Fig. 6A–D

Fig. 6A–D. From: Do Ceramic Femoral Heads Reduce Taper Fretting Corrosion in Hip Arthroplasty? A Retrieval Study.

Backscattered electron micrographs of (A) TMZF, (B) Ti-6Al-4V, (C) Co-Cr-Mo, and (D) CoNiCrMo alloy tapers used in conjunction with ceramic femoral heads. Each image shows fretting damage and some corrosion debris present. In C, the damage has a distinctly corrosion-like appearance emanating from a machining ridge.

Steven M. Kurtz, et al. Clin Orthop Relat Res. 2013 October;471(10):3270-3282.
6.
Fig. 5A–E

Fig. 5A–E. From: Do Ceramic Femoral Heads Reduce Taper Fretting Corrosion in Hip Arthroplasty? A Retrieval Study.

SEMs of five different design and materials for the male taper of ceramic-metal trunnions. (A) TMZF (Stryker Orthopaedics, Mahwah, NJ, USA) × 35 BEC, (B) Ti-6Al-4V (Zimmer, Inc, Warsaw, IN, USA) × 100 SEI, (C) Ti-6Al-4V (Wright Medical Technology, Inc, Arlington, TN, USA) × 220 BEC, (D) Co-Cr-Mo (DePuy Orthopaedics, Inc, Warsaw, IN, USA) × 100 BEC, (E) Co-Ni-Cr-Mo (Zimmer) × 100 BEC. SEI = secondary electron imaging; BEC = backscattered electron contrast image. A is a ground surface, whereas BE have machining grooves present. Also shown are fretting scars and corrosion and biological debris present. For grooved implants, only the groove tips show evidence of fretting corrosion damage.

Steven M. Kurtz, et al. Clin Orthop Relat Res. 2013 October;471(10):3270-3282.

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