Radiographic lumbar spondylosis: Gender and age group prevalence in Nigeria

Background: Lumbar spondylosis (LS) increases with, and is perhaps an inevitable concomitant of age, and is a major cause of low back pain and disability in the elderly. The prevalence in Nigeria is poorly documented, and its knowledge will assist in patient management. Objective: The aim is to study the gender and age group prevalence of LS in Nigeria. Materials and Methods: This is a retrospective review of 368 anteroposterior and lateral lumbosacral spine spondylotic radiographs of patients of both genders. Data analysis was performed with IBM SPSS Statistics 20.0 (New York, USA). The value of P < 0.05 was considered statistically significant. Results: The age range was 17­90 years, mean (standard deviation) was 51.96 (13.49) years. The majority (201 [55%]) were aged 45­64 years. The males (217 [59%]) were aged 17­90 years, and the mean (standard deviation) was 52.28 (14.49) years, whereas the females (151 [41%]) were aged 17­80 years, and the mean (standard deviation) was 51.51 (11.95) years. The mean ages showed no significant gender difference (P = 0.429). Male: female ratio was 1.4:1. LS prevalence increased with age, peaked at 45­54 years in females, 55­64 years in males, and steadily declined to zero, in females after 80 years, and in males after 90 years. Conclusion: LS prevalence started as early as 17 years of life, increased with age, peaked at 45­54 years in females, 55­64 years in males, and steadily declined to zero, in females after 80 years, and in males after 90 years. Sex ratio showed slight male preponderance

Reajustement des charges des appareils de traction cervicale au cours de l'arthrose cervicale a Kinshasa

Objectif : Reajuster les charges des appareils de traction cervicale par la mesure des ecarts entre les charges affichees et celles accrochees; en vue d'une correction eventuelle par rapport au poids du patient.Methodes : C'est une etude de cas portant sur 6 materiels de traction cervicale appartenant aux 4 centres de reeducation et aux Cliniques Universitaires de Kinshasa; de janvier 2005 a decembre 2010 dans la ville de Kinshasa. Le reajustement des charges de ces appareils de traction a permis de verifier a l'aide d'un dynamometre intercale entre la sangle de traction et l'autre bout de la corde; la concordance ou non des charges accrochees au bout libre de l'appareil et celles affichees au dynamometre lors de la traction. Nous avons calcule la variation de la charge de la tete sur la colonne cervicale en fonction du degre de la lordose et du niveau de la vertebre. Etant donne que la tete pese en moyenne 8;1% du poids corporel; la charge a accrocher devait etre superieure au poids de la tete pour exercer une reelle traction sur la colonne cervicale.Resultats : Le reajustement des charges des appareils de traction cervicale dans ces cinq services a montre des ecarts importants entre les charges accrochees et celles affichees au dynamometre; compris entre 1;5 et 10 kg. Il a ete aussi mis en evidence l'importance de la lordose cervicale et celle du niveau de la vertebre dans l'augmentation de la charge sur la colonne; les variations de charges obeissant a une progression arithmetique.Conclusion : Nos resultats peuvent donc permettre; dans un contexte des pays a faibles revenus; d'aider les praticiens a proceder au reajustement des appareils de traction avant la prise en charge