The patellofemoral pain syndrome in recruits undergoing military training: a prospective 2-year follow-up study.

Patellofemoral pain syndrome is a frequent phenomenon among recruits undergoing military training. The causes, however, are largely unknown, which makes it difficult for medical staff and military personnel to deal with the problem. A prospective 2-year follow-up study was performed in 58 recruits with patellofemoral pain that had started prior to or during basic military training. Anthropometric data and patient history were recorded, and a clinical examination of the knee joint was performed according to established criteria at the time of inclusion into the study. At follow-up investigation, a questionnaire concerning the patient's current physical status and his assessment of his former military seniors were filled out. A large number of patients were engaged in jobs or sports that burdened the knee; previous injuries were also very common. The majority of our patients adhered to the recommended period of reduced activity. However, retrospectively the patients did not feel military personnel had understood them. Less activity appears to have been the main factor that reduced symptoms and complaints.