J M Sanchez-Freijo | PubMed Health

PubMed1992

Dynamic changes of the transverse carpal arch during flexion-extension of the wrist: effects of sectioning the transverse carpal ligament.

The width of the carpal arch, represented in this study by the distance between the tips of two Kirschner wires--one inserted into the trapezium and another into the hook of the hamate--was measured with precision calipers in 21 patients with carpal tunnel syndrome, both before and after sectioning of the transverse carpal ligament and in different wrist positions. With the ligament intact, most of the wrists showed a decrease in the distance in both flexion and extension. The distance increased an average of 11% after sectioning of the transverse carpal ligament. The dynamic behavior of the carpal arch, however, was not substantially modified by this procedure.

Adult↗

PubMed1992

Congenital flat foot: different clinical forms.

Using standard lateral x rays of 32 congenital flat feet (CFF) treated in our institutions, we studied the alignment in the sagittal plane of the tarsal and metatarsal bones. All feet presented with a complete dislocation of the talonavicular joint and a vertical talus. In some cases, however, the alignment of the calcaneocuboid joint was abnormal. In these, both the talus and the calcaneus appeared verticalized with no apparent subtalar joint subluxation (type I). Other cases, by contrast, had a normally aligned calcaneus thus implying subluxation of the subtalar joint (type II). Between the two types, a spectrum of clinical forms combining features from both categories exists. Recognition of the different varieties of CFF is of importance when planning surgery. Type I CFF requires reduction and stabilization of the whole midtarsal joint, while in type II CFF attention must be given to both the subtalar and calcaneocuboid joints.

Adolescent↗