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Biomedical subjects

C Ficat

Publications and source records attributed to C Ficat.

12 recordsLinked to original sources
PubMed1979

Spongialization: a new treatment for diseased patellae.

Spongialization is an extension of the concept of Pridie for resurfacing damaged joints. The diseased cartilage is excised and the subchondral plate completely removed exposing the cancellous bone or "spongiosa" from which a new fibrous tissue surface can grow. The technique is particularly applicable to a localized lesion of the patella. Eighty-five patients who had patellar spongialization and were followed from 6--36 months (average 15 months) are reported, with 79% reporting good or excellent results. Provided that there was severe cartilage damage in each case, the early results are better than with either patellectomy or "shaving" of the diseased cartilage.

Adolescent↗
PubMed1979

[Postoperative sciatica from epidural fibrosis and lumbar arachnoiditis. Results of 38 repeat operations].

Lumbar epiduro-arachnoiditis is a well-known complication of surgery of the intervertebral disc. The epidural fibrous scar is the normal outcome of inflammatory activity secondary to the mechanical tissue disturbance resulting from surgery. In certain individuals, perhaps genetically predisposed as excessive quantity of fibrous tissue is deposited in the epi and/or nitradural space. This abnormal situation, comparable to cheloid cutaneous scars, is perhaps at the origin of the clinical symptoms. The authors report the clinical and radiological signs observed in 38 patients having had at least one operation for discal hernia, and who underwent further operations in the aim of freeing the roots and the dural sack from fibrous compression. Results of excision of the epidural "cheloid" were good in 13 cases, and average in 8 others. There was a complete failure in 17 other patients. Three explanations were offered to explain the frequency of the failures: 1) formation of a new cheloid, 2) difficulty of neurolysis of the arachnoiditis, 3) possibility of intrinsic lesions of the nerve associated with the epiduro-arachnoiditis.

Adult↗
PubMed1978

Repeat surgery after disc excision.

Sixty patients requiring repeat surgery after lumbar disc excision are reviewed. Thirty-one had had their initial surgery performed by the authors and represent a 5.9% frequency of repeat surgery after initial laminectomy for sciatica. Of the 60 patients, 49 suffered recurrent radicular pain, 20 suffered from back pain, and 8 had other problems (infection, extradural cysts, etc.). In patients with recurrent sciatica, perineural fibrosis and recurrent herniation were the most common problems; those patients with the latter pathologic condition responded most favorably to repeat surgery. Of 520 patients who had undergone disc excision, only 9 required secondary fusion.

Adult↗
PubMed1975

Cartilage of the patella. Topographical variation of glycosaminoglycan content in normal and fibrillated tissue.

The variation in the glycosaminoglycan content was studied at different sites of the patella, both where the cartilage was intact and where it showed varying degrees of fibrillation. It was found that when the cartilage surface was intact the glycosaminoglycan content was the same at the different sites of the patella. Local fibrillation always gave rise to a local lowering of fixed charge density, the magnitude of the latter correlating well with the visual assessment of the severity of the lesion. Even in the presence of severe lesions, if there was a site left on the patella where the cartilage was visually normal, its fixed charge density was also at a normal level. Thus, the depletion of glycosaminoglycans is a local phenomenon, limited to the area of fibrillation. The glycosaminoglycan content of normal cartilage is lower in the knee joint than in the hip. This fact, together with the existence of high pressure during load bearing, may be responsible for the greater frequency of destructive lesions affecting the cartilage of the patella compared with that of the hip.

Adolescent↗
PubMed1975

[Osteoarthrosis of the first metatarso-phalangeal joint. Surgical treatment; 92 cases].

The study of 92 cases of osteoarthrosis of the first metatarso-phalangeal joint (or hallux rigidus) shows the importance of two aetiological factors : excessive length of the first metatarsal in the so-called primitive osteoarthrosis, and traumatism for the secondary forms. The results of arthrodesis are rather better than these of arthroplasty and exostosectomy, mainly in men after 50 years.

Adolescent↗
PubMed1975

[Wounds of the flexor tendons of the fingers at the level of the hand. Results of primary sutures].

The authors review in 100 patients, 182 wounds of flexor tendons of the fingers at the level of the hand emphasize the definite preponderance in young workers, their frequency which is all the greater as one moves away from the thumb, and approches the area of the fibrous pulleys, their common misdiagnosis, especially at the level of the thumb, their prognosis which is all the worse as one approaches the fifth finger and the areas of the pulleys. The poor results simply confirm their reputation of seriousness from an economic and social point of view. The technical problems raised by stiffening of the proximal interphalangeal joints and, above all, the formation of adhesions, are far from solved, it seems that an improvement in the results might be obtained if these wounds were repaired by specialised surgeons in a unit dealing exclusively with surgery of the hand which, under present conditions, is not always the case.

Adolescent↗
PubMedDate not supplied

[External hypertension syndrome of the patella. Its significance in the recognition of arthrosis].

Some chondromalacia are caused by an hyperpressure on the lateral articular facet of the patella. The authors describe the clinical signs and the radiological findings in this condition. It is due to a retraction of the lateral patellar ligament. They have operated on 133 cases and reviewed 115 knees. After a simple section of the lateral patellar ligament, results were satisfactory in 80 percent of the cases. Biopsies of the malacic cartilage were performed and pathological changes were described.

Biomechanical Phenomena↗
PubMedDate not supplied

[The reaction of articular cartilage to mechanical trauma. An experimental study].

Experiments were conducted in 20 rabbits to study the effects of a single measured trauma applied to the femoral articular cartilage. The author found that, at the fifteenth day, there was fibrillation localised to the area of the trauma associated with necrosis of superficial chondrocytes and clusters of young chondrocytes. Fissures in the cartilage can be seen to be lined by chondrocytes in clusters. These findings are similar to those described by other authors after different types of injury (contusion, defect, instability, repeated trauma).

Animals↗