[Sub-occipital Pott's disease (C1-C2): about 3 news cases seen in Abidjan]. / Mal de Pott sous-occipital (C1-C2): a propos de 3 nouveaux cas vus a Abidjan.

We report three new cases of sub-occipital Pott disease (C1-C2) seen at the University Hospital of Cocody (Abidjan) with their clinical features. In the first case, the mode of revelation was original and unique: an incomplete Brown-Séquard syndrome. The second case provided warning about the dangers of self-medication and untimely antibiotic usage. The third case informed about the imperative to make the differential diagnosis. The histological or bacteriological arguments led to the diagnosis in the first two cases, associated with a visceral localization. Therapeutic evidence was required in the third case. The sub-occipital Pott's disease remains a rare localization.

Nous rapportons trois nouveaux cas de mal de Pott sous-occipital (C1-C2) vus au CHU de Cocody (Abidjan) avec leurs particularités cliniques. Dans le premier cas, le mode de révélation était original et unique: un syndrome de Brown-Séquard incomplet. Le second cas alerte sur le danger de l'automédication et de l'antibiothérapie intempestive. Le dernier cas instruit sur le caractère impératif de faire le diagnostic différentiel. Les arguments histologique ou bactériologique ont permis le diagnostic dans deux cas, associés à une localisation viscérale. La preuve thérapeutique a été nécessaire dans le dernier cas. Le mal de Pott sous-occipital demeure une localisation rare.

Epidemiology and features of knee osteoarthritis in the Ivory Coast.

We retrospectively studied 369 cases of knee osteoarthritis in 240 patients seen at the Cocody Teaching Hospital in Abidjan, Ivory Coast, from November 1984 through March 1989. There were 126 cases (34.14%) of patellofemoral osteoarthritis, 104 cases (28.18%) of femorotibial osteoarthritis and 139 cases (37.66%) of global knee osteoarthritis (defined as patellofemoral and femorotibial osteoarthritis in the same joint). There was a marked female bias (80.42% of patients). Onset was earlier in patellofemoral osteoarthritis (51.25 years) than in femorotibial osteoarthritis (57.85 years). Half the patients (51.25%) were housewives. The Akan and Mandé ethnic groups contributed 61.54% and 33.03% of patients, respectively. Obesity was present in 19.04% of cases of patellofemoral osteoarthritis and in 10.57% of cases of femorotibial osteoarthritis. Of the patients with femorotibial osteoarthritis, 20.20% had a history of arthritis of the knee and of those with global knee osteoarthritis, 12.23% reported a prior injury to the knee. Varus deformity was found in 24.03% and valgus deformity in 19.23% of the patients with femorotibial osteoarthritis.