[Unbalanced patella. X--Criticism of therapeutic methods and indications].
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Biomedical subjects
Publications and source records attributed to D Goutallier.
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23 cases of rotary instability of the knee have been reviewed with an average follow up of 5 years. They have been treated by a combination of pes anserinus transfer using Slocum's technique with medial transposition of the tibial tubercle. Functionally the results were satisfactory and there was no antero-posterior instability. No secondary patello-femoral arthrosis was seen. All the knees seemed to be more stable but most cases showed some degree of effusion, quadriceps wasting and some pain. It is concluded that this type of surgical procedure may provide a satisfactory knee for lighter sporting activities but not for competitive sport.
The authors report on the results of their experience with surgery of the rheumatoid metatarsus (95 patients operated on--150 operations). The operation most frequently performed was the Lelievre metatarsian resection-alignment. They confirm the advantage of this type of surgery, which provides very handicapped patients with substantial relief, both of pain and of the functional troubles, despite the nature of the disease involved. Out of 80 patients operated on and followed up over a period of 2 to 14 years, and considering the correction of the deformities, the effect on pain and functional troubles, the authors report 103 very good and good results, and 18 poor results and failures. The good results obtained deteriorate only very little in the long run: after 10 years, the very good and good results involving effect on pain, has gone from 96 to 90%. On the other hand, as far as functional troubles are concerned, very good and good results go from 90% to 70%. The authors underline the advantage of a very through examination, in order to look for post-operatory risk factors (peripheral circulatory deficiency and poor resistance to infection). They insist for exercising great prudence when advising an operation consisting of the interposition of an endoprosthesis (Swanson's implant). Indeed, in subjects who are in any way fragile, delays in scarification, related to hematomas complicated or not with skin necrosis appear with increased frequency after interposition of the implant.
We treated a chondro-sarcoma of the ilium by total resection of the hemipelvis preserving the lower limb. We describe our technique and give the fonctionnel result of this operation which we believe could in certain cases replace a hemipelvectomy.
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The authors studied the results of surgery for lombosacral spondylolisthesis with gross displacement. The technique of arthrodesis makes intersomatic fusion easy in displacement of grades II and III. This fusion, without reduction of the displacement, leads to good functional rsults climating low back pain, and most sciatic pain without which time would be necessary for posterior liberation at the olisthetic stage. The authors also believe that preliminary correction of displacement, although satisfying in orthopaedic terms but still difficult to achieve with current techniques, is at present rarely indicated.
The authors have followed up for than 2 years, 22 cases of lateralised femoro-patella arthrosis treated by recentering of the patella. They confirm the value of this operation and emphasize the necessity of controlling the precise position of the patella during the operation. They also believe that one should avoid, especially if the treated arthrosis is not too advanced, perfect reaxation which may favour progressive narrowing of the joint space, once weight beraring is allowed and which may be the origin of the secondary functional degradation of this series.
A technique of anterior lumbosacral arthrodesis is described in which a tibial graft is inserted into the sacrum and acts as a bracket against the anterior surface of the fifth lumbar vertebral body. Eighteen patients were treated. There was non-union in four but only two had unsatisfactory clinical results. The technique can be applied to moderate displacement but is particularly appropriate in grade III spondylolisthesis. It does not decrease the stability of the spine. The functional results depend on fusion and are not affected by persistent displacement.
The authors describe the condition in 1972 of patients who were operated on by the Voss technique between 1959 and 1966 and who had been studied first in 1967. Four patients out of 10 remained satisfactory for 6 to 10 years after surgery but the progressive deterioration in the results shows that this operation does not withstand the test of time and that it has a very weak pathogenic basis.
The authors report their experiences of the surgical treatment of external femoro-patellar arthrosis with displacement of the kneecap, by recentering the kneecap, on knees that were not deformed as seen from the front. This recentering of the kneecap, which was monitored during the operation by radiographs with axial projection, was obtained by internal transposition of anterior tibial tuberosity and section of the external " wing " of the patella. No inert or living material was placed between the patella and the trochlea. The reduction in pain and the improvement in articular function depend on how well the patella is recentered. Twenty-two cases of external femoro-patellar arthrosis with displacement of the kneecap were treated in this way; in 18 operations, 14 results that remained favourable for more than 6 months have encouraged the authors to continue their trials and to abandon, at least for the time being, patellectomies and patelloplasties.
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