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Biomedical subjects

A Fery

Publications and source records attributed to A Fery.

28 records · Page 2Linked to original sources

Cortical circulation of long bones.

Intravascular injections of India ink in the femora of adult dogs revealed the existence of two distinct vascular systems in the cortex. One courses through the entire thickness of the cortex and is a regular, longitudinal network of uniform capillaries which is in continuity with the periosteal and endosteal networks. Once the haversian systems form a second network appears, radiating from the bone marrow. That system, primarily transverse, anastomoses in the haversian canals with the capillaries of the first system. Therefore, the merging of the two networks occurs primarily in the middle layer of the cortex. The direction of the arterial blood flow in the mature animal is predominantly centrifugal, while the venous drainage is centripetal. In the immature animal, the contribution of the periosteal network is much greater. Because the two cortical systems are profusely anastomosed with each other and with the periosteal and endosteal circulatory networks, the blood can flow in either direction, depending on physiological conditions.

Animals↗

[Rupture of the extensor apparatus of the knee; 45 cases].

The authors describe 45 cases of rupture of the extensor apparatus of the knee (excluding fracture of the patella). Some new ideas are put forward concerning the frequent cause by road accidents and the contribution of certain predisposing features which cause degenerative changes of the tendon. Operation was performed in all cases. The extensor apparatus was reconstructed by suture, cerclage or reinsertion, together with the use of procedures described by Mac Laughlin and Scuderi. The results are presented in detail. 90% are very good or good but complications during operation or in the post operative phase were frequent and occurred in 27% of the cases.

Accidents, Traffic↗

[Simultaneous bilateral avulsion of the quadriceps and Achilles tendons in 1 limb and of the patellar tendon in the other in a hyperparathyroid patient on chronic hemodialysis].

A case of simultaneous rupture of three tendons is reported in a patient who had suffered a bilateral nephrectomy six years earlier and was on chronic haemodialysis. The quadriceps tendon and the patellar tendon were repaired surgically. The rupture of the tendo Achillis was left untreated. Six days later a parathyroidectomy was performed; nine months later recovery was excellent. A review of the literature has been made. The role of hyperparathyroidism in the strength of the bone-tendon junction is discussed.

Achilles Tendon↗

[Wounds of the hand by injection of fluids under high pressure (author's transl)].

The result of mechanisation and technical improvements in industry, wounds by high pressure pistols are very serious. They are often neglected at first for they may be undiagnosed. To the toxicity of the injected product, which diffuses far from the minimal point of entry, may be added the destructive effect of the high pressure on the cell spaces of the hand, which are narrow and inextensible. Surgical treatment includes the association of antibiotics, anti-inflammatory drugs, analgesics and wide removal of the affected tissues as well as the foreign material. Active physiotherapy after immobilisation in a functional position, will permit recovery of satisfactory movements. Amputation is unfortunately often necessary, thus great efforts should be made to prevent work accidents.

Accidents, Occupational↗

Metastatic malignancy of the hand.

Metastatic malignancies of the hand are infrequent and seldom initially diagnosed and often taken for infections. They usually occur at the late stage of metastatic generalization and indicate an ominous prognosis and justify surgical amputation. A case of metastasis to the distal phalanx of the left ring finger of a woman who had undergone radical mastectomy for breast cystosarcoma phylloides is reported. The evolution of this lesion, initially taken for a whitlow, lasted 45 days and eventually was treated by amputation. A review of literature confirms the rarity of the lesion, and reveals the pathological, clinical and radiographic characteristics.

Amputation, Surgical↗

Recurrent posterior instability of the shoulder.

Seven cases of recurrent posterior instability of the shoulder were reviewed, three with recurrent subluxation and four with recurrent posterior dislocations. All were treated surgically, one by inverted Putti-Platt, one by glenoplasty and five by posterior bone block procedures. The follow-up goes from three to 17.5 years (mean 8.5 years). Clinical history and physical examination were the most accurate diagnostic methods. There were three excellent, one fair, and one poor results with two failures. The poor result and failure cases are due to technical errors, particularly because of wrong positioning of the graft in posterior bone block procedures. We suggest a bone graft with a projection of at least 15 mm beyond the glenoid rim to obtain a good result with this technique. Osteoarthritis does not seem to develop at long-term in our patients even with a poor result except for those with iatrogenic origin. The functional results are stable over time except for patients with osteoarthritis.

Adolescent↗