Documentation Committee Subjective Knee Form

Evaluation and refinement of new techniques are essential for the evolution of every type of surgery. The evaluation of the results achieved is an important link in this chain of improvements. To provide adequate tools for this evalua-tion in knee surgery, several subjective knee scores have been developed during the past years.2,5,7,8,15,16 Most of the available self-administered questionnaires are disease specific instead of knee specific. Questionnaires that are designed as subjective scoring sys-tems can be used in countries other than the ones in which they were developed if they are translated and validated for a specific language and population.10,11,17 For the Netherlands, only the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Oxford 12 Questionnaire score are translated and validated for use in the Dutch popu-lation. Both are especially designed for osteoarthritis and not for use in other knee-related problems. In 2004, the WOMAC was translated and validated for Dutch patients with osteoarthritis by Roorda et al.19 It is widely used and is translated and validated in several lan-guages. This disease-specific questionnaire measures health-related quality of life by mainly scoring pain and physical functioning.2,19 The Oxford 12 Questionnaire score was translated and validated for the Dutch population by Haverkamp et al12 i