[Functional results of patellectomy].

A follow-up of 41 patients 1-10 years after patellectomy was performed. A discrepancy between subjective satisfaction of the patient and objective functional results could be observed. Best results can be expected after patellectomy due to traumatic comminution of the patella. Patellectomy due to degenerative destruction of the patella results in decreasing pain but exercises only low influence on the functional result. Instability after patellectomy can be explained by loss of the major patellar function (sesamy bone in the patella and quadriceps tendon). The intact patella is of great importance. However, patellectomy of destroyed patellas is considered very helpful. Competent concomitant and after treatment as well as an accurate diagnosis at the right time are prerequisites for good results.