title: Chondral lesions of the midcarpal joint.
abstract: Wrist arthroscopy performed on 78 patients showed 35 lunates of Type I (44.9%) i.e., having only one facet on their distal (midcarpal) aspect, and 43 lunates of Type II (55.1%), i.e., having two facets on this aspect. Chondral defects and/or arthritic lesions of the ulnar portion of the midcarpal joints were observed in 22.8% of Type I lunates and in 30.2% of Type II lunates. Chondral lesions of the midcarpal joints in Type I lunates were always associated with other ligamentous and/or osteochondral lesions, whereas the same lesions could be found isolated in Type II lunates. The observed association of lesions seemed to point to a trauma as the cause of some chondral lesions. The results of our clinical study were compared with anatomical studies by Viegas, all which showed no hamate pathologic conditions in Type I lunates.
authors.affiliation: Hôpital Jeanne d'Arc, Toul, France.
authors.forename: G
authors.initials: G
authors.lastname: Dautel
authors.forename: M
authors.initials: M
authors.lastname: Merle
mesh_terms: D000328:Adult; D001182:Arthroscopy; D002348:Carpal Bones / Q000293:injuries / Q000473:pathology*; D002358:Cartilage, Articular / Q000473:pathology*; D005260:Female; D006801:Humans; D012667:Lunate Bone / Q000293:injuries / Q000473:pathology*; D008297:Male; D010007:Osteochondritis / Q000175:diagnosis*; D014953:Wrist / Q000033:anatomy & histology; D014954:Wrist Injuries / Q000150:complications