2017
DOI: 10.1016/j.artd.2017.03.003
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Abstract: This report describes a case of mechanically assisted crevice corrosion and secondary adverse local tissue reaction in a patient following a total hip arthroplasty, utilizing a modular neck (bi-modular) femoral component. Radiographic evaluation demonstrated a well-positioned, stable, cementless arthroplasty. Upon further evaluation, the patient had elevated serum cobalt and chromium levels, and magnetic resonance imaging demonstrated a periprosthetic pseudotumor. Corrosion of both the neck-stem and head-neck … Show more

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Cited by 13 publications
(7 citation statements)
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“…To our knowledge, we report the first case of neck-stem taper discoloration in this Ti-alloy stem with a Ti modular neck and only the third case of ALTR with this stem in MoP THA. Our findings are particularly interesting as the Ti neck-Ti stem junction of modular neck stems is not typically implicated in ALTR [5] . Plummer et al.…”
Section: Discussionmentioning
confidence: 81%
See 1 more Smart Citation
“…To our knowledge, we report the first case of neck-stem taper discoloration in this Ti-alloy stem with a Ti modular neck and only the third case of ALTR with this stem in MoP THA. Our findings are particularly interesting as the Ti neck-Ti stem junction of modular neck stems is not typically implicated in ALTR [5] . Plummer et al.…”
Section: Discussionmentioning
confidence: 81%
“…and Canham et al. each previously identified 1 case of ALTR from corrosion at the head-neck junction of this modular neck stem in MoP THA but found no evidence of corrosion at the neck-stem junction [2] , [5] . Consideration should be given to avoiding the routine use of this stem, particularly given its vulnerability to corrosion at all taper junctions.…”
Section: Discussionmentioning
confidence: 87%
“…A dual taper Ti alloy neck and Ti alloy stem design (M/L Taper) showed a higher prevalence (4.9%) of MACC than all other Ti alloy stems combined (1.2%) of the same manufacturer. For these stem design (M/L Taper Kinectiv) with a bi-modular Ti alloy neck on a Ti alloy stem and a CoCr 40 mm head, Canham et al [57] described in a case study a characteristic peri-prosthetic pseudo-tumor formation as an ALTR and an elevated serum cobalt level of 12.3 µg/L and chromium of 1.8 µg/L whereby the only potential source was the head-neck junction.…”
Section: Literature On Symptomatic and Asymptomatic Dual Taper Hip Stemsmentioning
confidence: 99%
“…We direct our readers to the first paragraph of the discussion section, in which we cite the 2 prior cases of ALTR reported with the stem that is the subject of our report [3,4]. Three reported cases of ALTR, as well as evidence of taper corrosion at both head-neck and neck-stem tapers, should give us pause before selecting this stem for routine use.…”
mentioning
confidence: 97%