Topic Ceramic

Executive Summary

Choosing a Femoral Head: A Survey Study of Academic Adult Reconstructive Surgeons

Authors
S. Nandi, M.S. Austin; University of Toledo, Ohio & Rothman Institute, Philadelphia, USA
Journal
The Journal of Arthroplasty 2017; in press, http://dx.doi.org/10.1016/j.arth.2016.12.009. Online Dec 2016
Level of Evidence
Not applicable.

Summary

Nandi and Austin investigated the attitude of academic orthopaedic surgeons towards the use of ceramic and CoCr femoral heads for THA using a simple 16-question survey which they sent to 274 faculties at 42 US adult reconstruction fellowship programs.

The response rate was 42.2%. The responding surgeons use ceramic heads 72.9% of the time and 47% use ceramic heads for all their patients. 38% use ceramic heads dependent on age, and 12% dependent on activity level. 3% of respondents do not use ceramic heads at all. If a CoCr head is chosen, costs (45%), limitations in neck length options (33%) and concern with potential ceramic fracture (11%) are the main reasons. 4% of the academic surgeons think that there is no benefit in using ceramic heads. Cost difference between ceramic and CoCr heads varies between none (22%) and up to $1’000 (9%), 18% of surgeons did not know the cost difference. If it is below $300 surgeons would preferably use ceramics heads.

Surgeons have personally observed corrosion at the head-neck tapers with CoCr or ceramic heads on polyethylene in 94% and 9.5%, respectively. For revision THA due to corrosion 96% would use a ceramic femoral head and in case the stem is left in situ 91% would use a ceramic head with a titanium sleeve. 81% expect the possibility of corrosion at any time if a CoCr head is used on any stem taper and 72.4% are concerned about it. Nevertheless, only 46% of the respondents think that a ceramic head should be the standard of care.

There is still a concern for ceramic fracture (16%) and 6% of the responding surgeons have already seen a fracture of a BIOLOX®delta ceramic head. The long-term wear of CoCr and ceramic heads on cross-linked PE was not thought to be different (53% yes, 46% no).

The authors conclude that the respondent surgeons are guided by evidence which indicates that taper corrosion and fracture is rare with ceramic heads. However, implant selection is strongly influenced by cost and personal experience.

Study Limitations

Key Messages

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