Quality assurance in orthopaedics-as in any medical speciality - relies on
precise medical records. Data quality is crucial for statistical evaluation
; missing values cannot be avoided but must be minimized. The quality assur
ance system must be accessible from many locations within the clinic; given
the complex and heterogeneous computing infrastructure this is a technolog
ical challenge. Intranet technology - the application of internet-tools in
local networks-can help to solve the technical problems. A generic Intranet
-based quality assurance system in orthopaedics was designed, implemented a
nd evaluated. The basic concept is an intranet data entry form which is gen
erated semiautomatically from the data definition. This form is adapted acc
ording to the individual needs of the doctors (intelligent data entry). By
flexible data transformation the same data set is used for clinical reports
as well as scientific evaluations. The first use was for ultrasound examin
ations of neonatal hips. A report form consisting of 56 items was designed.
Within the first 9-month period 1303 cases have been documented.