ABSTRACT
This multi-centre study investigated the distribution pattern of the three McKenzie syndromes among patients with low back pain (LBP) from the out patient physiotherapy departments of some selected medical facilities in Oyo, Ogun and Lagos States of Nigeria in order to establish the distribution index for patients suffering from LBP. Patients were selected using a consecutive sampling technique. Patients were examined and classified using the McKenzie assessment protocol. A total of 66 patients (57.6% males and 42.4% females) suffering from LBP of lumbar spine origin out of the 78 referred to the selected medical facilities qualified for the study; Data were analysed using descriptive statistics and interferential statistic of independent t-test. Alpha level was set at 0.05. Result showed that patients with derangement syndrome constituted 83.0% of the patients' population while dysfunction syndrome and postural syndrome were 9.0% and 8.0% respectively. It was concluded that derangement syndrome is predominant, in the studied population.