Effect of introducing an online system on the follow-up of elbow arthroplasty

Table 2 Results before vs after introduction of the online database

	Total elbow prosthesis	Radiocapitellar prosthesis	Radial head prosthesis	Revision surgery	Total
Questionnaires sent in total
Before introduction	212	24	245	135	616
After introduction	69	8	36	30	143
Response rate (%)
Before introduction	57.90%	45.80%	40.40%	54.10%	49.80%
After introduction	89.90%	100%	83.30%	100%	91.60%
Email address known (n)	43	5	26	21	95