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Biomedical subjects

G Lord

Publications and source records attributed to G Lord.

66 records · Page 4Linked to original sources
PubMedDate not supplied

[Normal gait and its changes after total arthroplasty of the lower extremity. Study on 200 subjects of the support phase of the step and its impulse].

The authors have studied the normal gait of 50 individuals using a dynamometric platform. Measurements have been made of the impulse at each step, the weight bearing phase and the forces transmitted by the foot to the floor. The results have been compared with those obtained from a study of the gait of 150 patients treated by total prostheses (133 hips, 10 knees, 7 ankles). This type of study leads to a better appreciation of operative results.

Aged↗
PubMedDate not supplied

[The treatment of spastic equinovarus in the adult by transplantation of peroneus brevis and lengthening of the tendo-calcaneus (author's transl)].

A new technique is proposed for the treatment of spastic equinovarus foot. After lengthening the tendo calcaneus, the peroneus brevis tendon is divided at the junction with its muscle belly and the distal end of the tendon is transferred through the interosseous membrane to be sutured to the tendo calcaneus. This technique aims to correct the varus as well as the equinus deformity. It was performed in seven cases with good results. The technique is compared with other methods designed to treat this condition. The method is worthwhile in cases without bony deformity.

Achilles Tendon↗
PubMedDate not supplied

[Subtalar dislocations with medial or lateral displacement (author's transl)].

The authors have observed 20 cases of subtalar dislocation, 16 with medial displacement and 4 with lateral displacement. The treatment given and the results are described. An experimental study has also been made which confirms that in medial dislocations the talo-navicular joint dislocates first whilst in lateral dislocations the talo-navicular joint dislocates last. The severity of assoicated lesions is emphasised. It is concluded that in severe displacement with complete extrusion of the talus, tibio-calcaneal arthrodesis gave better results than excision of the talus.

Adolescent↗
PubMedDate not supplied

[The stress in femoral prosthesis: a study of the importance of the diaphyseal support and horizontal setting (author's transl)].

This study by strain-guauge methods trends to estimate relative stress in the fresh, adult human cadaver femur, before and after implantation of a cement-free (madreporique) prosthesis with a trochantero-diaphyseal support. In contrast with Blaimont, Oh and Harris statements (after insertion of a conventional femoral component with an oblique setting over the femoral neck and a short stem, the pattern of strain in the proximal part of the femur is reversed compared with that in the intact femur, the maximum strain occuring around the tip of the prosthesis rather than at the calcar femorale), the Authors found that a dihedral foundation--with an horizontal setting of the prosthesis over the calcar--, and a long stem do not reverse the normal pattern of strain in the femur. This biological balance is necessary to bone-ingrowth development for implant anchoring. This "in vitro" study does not deal with this bony fixation but intends to approximate the initial static requirements, just after the uncemented prosthetic insertion, for such a bone ingrowth.

Adult↗
PubMedDate not supplied

[Total ankle replacement (author's transl)].

The authors have analysed the results of 25 total ankle replacements, either tibio-calcaneal or tibio-talar. 12 cases failed and only 7 could be considered to be satisfactory. The authors have ceased to use the procedure and consider that, at the present time, ankle arthrodesis is more reliable.

Ankle Joint↗