[Ochronosis or black cartilage disease].

We report two cases of ochronosis. This rare disease (1/1,000,000) transmitted by recessive autosomic inheritance results from an enzyme disorder. Clinically, the disease begins by black deposits in connective tissue followed by a group of symptoms, particularly involving the joints, and then destructive joint disease affecting the larger joints.

Peroneal nerve entrapment.

Sixty patients (sixty-two limbs) who had entrapment of the peroneal nerve were managed with operative decompression, and the results were evaluated after an average duration of follow-up of forty-two months (range, twenty-five to 162 months). The entrapment was postural in five patients, dynamic in two (one of whom had bilateral entrapment), and idiopathic in fifty-three (one of whom had bilateral entrapment). Fifty-eight patients (including the two who had bilateral entrapment) had a positive Tinel sign.

[Common fibular nerve lesions. Etiology and treatment. Apropos of 146 cases with surgical treatment].

Purpose Of The Study: Common peroneal nerve lesion on the lateral aspect of the knee is one of the most frequent neurologic injury of the lower limb. We reported the results of surgical procedure for each etiological group.

Material And Methods: In the peroneal nerve entrapment group, we individualised 62 fibular tunnel syndroms (55 idiopathic, 4 postural, 3 dynamic), and 16 external compression.