Biomedical subjects

J M Salo

Publications and source records attributed to J M Salo.

4 recordsLinked to original sources

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↗

PubMed1988

Carpal alignment after different surgical approaches to the scaphoid: a comparative study.

Thirty-seven patients with inlay bone grafting for scaphoid nonunion were evaluated before and after operation for wrist function and carpal alignment. There were 26 in whom a palmar approach had been used. The remaining 11 had been treated with a dorsal approach. The two procedures showed a similar union rate (around 80%). The palmar approach, however, caused a significant increase in the scapholunate angle (p less than 0.001) and in the lunocapitate angle (p less than 0.05) and consequently augmented carpal collapse. The dorsal approach did not affect carpal alignment. The surgical division of the palmar radiocarpal ligaments, which is necessary when using a palmar approach, may be responsible for these findings. Accordingly, a dorsal approach should be preferable to a palmar approach when a graft is used for treatment of a scaphoid nonunion.

Adolescent↗

PubMed1985

Non-union of a fractured coracoid process after dislocation of the shoulder. A case report.

A patient with a fractured coracoid process in association with a dislocation of the shoulder is reported. The fracture was not recognised initially, and early mobilisation was encouraged; the widely separated fracture did not heal and a painful pseudarthrosis developed. We believe that this association may not be as rare as generally supposed, and emphasise the importance of careful clinical examination in patients with shoulder dislocation. If a coracoid fracture is suspected, lateral or oblique radiographs should be taken to confirm the diagnosis. A further radiograph after reduction is a useful precaution.

Fractures, Ununited↗