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Biomedical subjects

V Mitz

Publications and source records attributed to V Mitz.

At least 19 recordsLinked to original sources
PubMed1992

[Dorsal tenolysis and arthrolysis of the proximal interphalangeal joint. 19 cases].

18 patients suffering from PIP stiffness in extension were treated by dorsal teno-arthrolysis. PIP joint stiffness was due to 3 cases of fracture of P1, 2 cases of fracture of P2, 2 cases of extensor tendons, 8 fractures of P1 associated with section of the extensor tendon, 2 cases of PIP closed trauma (1 sprain, 1 dislocation), and 2 crush injuries of the extensor tendon at the PIP joint. The surgical technique combined a dorsal sinuous approach, tenolysis of the extensor tendon on the dorsum of first phalanx dorsal capsulotomy, and more rarely (3 cases), section of collateral ligaments. The mean pre-operative active flexion was 44 degrees and the mean post operative active flexion was 78 degrees, which represents a gain of 34 degrees of active movement. Thanks to a classification which incorporates the range of active flexion in PIP joint, and the lock of active extension we rated 3 results as excellent, 4 as good, 8 as useful and 4 as insufficient. We therefore improved the range of movement in 15 out of 19 cases, which seams very encouraging.

Adolescent↗
PubMed1991

[A new test for the functional evaluation of the hand and its contribution to the study of toe transfers: the 5 matches test called "Take Five"].

After studying a series of thumbs reconstructed by 2nd toe transfer, we devised a new dexterity test: the "five matches test" or "Take Five Test" (R.S.). This test consists of the standardised timed and comparative pick-up of 5 identical fine objects (matches), permitting a simple and quick evaluation which objectively quantifies dexterity in fine pinches. The specificity of our test is that it is bilateral and comparative providing a narrow range of normality. In fact, a marked variability of time-scores is found between different individuals of a normal population, making it difficult to determine a "normal dexterity" criterion. But in the same person, there is little variability between two successive experiments or between the dominant and non-dominant hands. Examining a reconstructed hand, we have chosen as the "normal dexterity" criterion the time-score of the contralateral spared hand, timed first. The final score (from 0 to 4 points) is based on the difference between time-scores of the 2 hands (delay tested hand/spared hand). The "Take Five Test" (five matches pick-up test) has largely proven its efficiency in studying a series of thumbs reconstructed by 2nd toe transfer (operated on by V.M.). Fine pinch dexterity is satisfactory in 45% of cases (65% when long digits are spared), scoring at least 2 points (delay less than 4 seconds). The average score is 1.6 pts (range: from 0 to 4). This test could prove the functional value of parameters such as phalangeal mobility and a short delay between injury and reconstruction.

Adolescent↗
PubMed1991

[Emergency pulp reconstructions].

Pulp reconstructions use numerous techniques ranging from simple debridement to local and microsurgical flaps. The authors analyse the various treatments, in which directed healing still retains numerous indications. Local flaps have a definite place, but they are not devoid of risks (iatrogenic stiffness). The indications are presented schematically in table form together with several examples. A wide range of techniques is necessary in order to treat the various lesions appropriately. Large defects are best treated by microsurgical transfer of great toe pulp with satisfactory results, which justifies their management in specialised centers.

Amputation, Traumatic↗
PubMed1991

[Foot replantation followed by tibial lengthening. Apropos of a case].

The authors present a foot replantation case at the ankle level followed six months later by a tibial lengthening using the Ilizarov procedure. Performing the aforementioned lengthening following a replantation enables good nervous and vascular sutures, tension-free and ensures a satisfactory result.

Adult↗
PubMed1991

[Evaluation of results of a series of 58 breast reconstruction after cancer].

The evaluation of 58 breast reconstructions operated in Boucicaut Hospital demonstrated positive result. The authors review the techniques used for contralateral breast symmetrization. The policy generally adapted has been to perform two sequential operations: 1st step: implantation of a prefilled prosthesis and contralateral breast symmetrization; 2d step: reconstruction of areolo-nipple complex and refinement of contralateral breast. Radiotherapy seems to be a problem in reconstruction. A 12% recurrence rate has been quoted in this group. Tram flap has been exceptionaly used by our team, as we tend to prefer the latissimus dorsi myocutaneous flap. Very few expanders have been implanted.

Breast Neoplasms↗
PubMed1991

[Value of pulp recession in inveterate hook fingers. Techniques/indications].

The aim of this operation is to preserve the sensitivity whenever when a finger has to be amputated. We have reviewed 9 patients operated according to this technique, out of 14 patients for whom an amputation or a shortening arthrodesis was discussed. The results of pulp recession were most encouraging. The incision were located on both sides of the finger and distant from the ungueal matrix. The dorsal skin was elevated in the sub-periosteal plane. Resection of the necessary amount of 2nd phalanx to obtain an extended finger was performed. An osteosynthesis with pins is preferred for a duration of 6 weeks. This operation can be performed for very stiff finger, hooked fingers or dystrophic fingers with a good pulp. In extreme cases of shortening, the nail with its bed ar sacrificed, and the entire pulp is used to cover the distal stump. This principal of pulp recession has been used in two other cases in emergency surgery. The postoperative was marked by finger swelling and some pain of the distal sutured skin. Overall the results were satisfactory and patients were very satisfied to keep their finger, which would otherwise have been doomed.

Adolescent↗
PubMed1991

[Use of deep planes in surgery of rejuvenation of the face].

Since 1976, anatomical studies intensively performed in France have demonstrated the surgical interest in using the superficial musculo-aponevrotic system in the face, and also a subperiosteal malar approach. The SMAS is mostly a surgical structure. It could be considered as a remnant of a primitive subcutaneous muscle which would have been located in the superficialis fascia; its stays outward the parotid gland. Muscular fibers have been found inside, uniting from-down the patysma muscle toward the periphery of the frontalis muscle at the top. Risorius muscle is included in this structure. Its surgical interest is that it allows to relieve skin tension during a face lift by a fibromuscular associated stretch. The modern way in face lifting should prevent the fixed appearance of a too tight skin-pull, when skin is redraped alone. Risks of facial nerve injury are minimal when the proper technique is used. It is possible, in the same way, during a blepharoplasty to stretch the orbicularis oculi muscle, like the muscular resuturing of an inguinal hernia repair. Each of this technique has its own different indications now well defined. The authors shows this experience after 150 cases of face lift operations and makes an analysis of the advantages and draw backs of using the SMAS in cases of rejuvenating face operations.

Aged↗
PubMed1990

[Cold sensitivity after median or ulnar nerve injury based on a series of 82 cases].

Cold sensitivity often occurs after upper limb nerve injuries. 82 patients were reviewed retrospectively with an average follow-up of 42 months. Cold sensitivity occurred after 50% of median nerve injuries and after 75% of ulnar nerve injuries. Symptoms are localized to the damaged sensory nerve territory, and are related to the level of the lesion after median nerve injury. They are increased by associated arterial damage even when it is repaired. The less attened is the two-point discrimination lest, the less severe are the disorders. The origin is not really known, but we think that cold sensitivity is related to a disturbance of sympathetic and sensory fibers.

Adolescent↗
PubMed1990

[Ultrastructure of human normal and pathological reassembled collagen fibers].

It is possible, in vitro, to break down human skin then reassemble the collagen fibres of the dermis, essentially type I collagen. The authors have developed a biophysical process for the manufacture of type I autocollagen. They present the electron microscopic study of this collagen. These healthy collagen fibres are compared with the fibres obtained from radiation dermatitis skin and keloid scars. Major ultrastructural differences are demonstrated.

Cicatrix↗
PubMed1990

[Objective evaluation of the results of interventions for breast hypertrophy].

It would appear to be impossible to compare completely different techniques of mammaplasty performed in very different clinical situations. However, we thought it would be useful to approach the result of mammaplasties from a more "orthopaedic" point of view. Such an approach distinguishes populations of patients with different results and in whom the postoperative assessment must take into account the result obtained, the residual scars and the final breast shape. A formula has been developed after multiple attempts: [formula: see text] This formula expresses positive factors: the quantity of glandular tissue removed (in grams), the final appearance of the scars, the appearance of the overall shape of the two reconstructed breasts and the reappearance of ptosis measured from the edges of the breast below the inframammary sulcus (in the erect position). In this way, it is possible to express these positive factors by the multiplying the scores attributed to each of the factors. For example, a resection of 150 g will be scored as 1.5 and a resection of 1,200 g will be scored as 12, i.e. the weight in grams is simply divided by 100 to give the score for weight. The scar will be scored according to an individual scale of 1 to 5. The shape will also be scored according to an individual scale of 1 to 5. The division factors include the length of the inframammary scar (segment 3); this inframammary vertical line will be included directly in the calculation. In contrast, the length of the horizontal inframammary scar will be divided by 10.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1990

[Replantations and devascularization. VBS (Vessel-Bone-Skin) emergencies].

The reimplanting activity initiated by Professor Raymond Vilain at Boucicaut Hospital in 1972 allowed emphasizing that, in addition to the reimplantation of a completely severed segment, there existed a parallel activity including microsurgical steps, bone surgery and skin plasties, all of which were gathered under the term of VBS, or Vessels-Bone-Skin, emergencies. Other terms are used (stage 3 fracture with vascular involvement, stage 4 fracture) for the same ultra-emergent pathology, in which many diagnostic problems as to the significance and extent of ischemia are associated with therapeutic issues. The results of an operation performed by one surgeon possessing all the desirable skills and working in a specialist Center allowed demonstrating that the quality of the results was such as could be hoped for: an overall survival rate of about 60%, little second surgery, blood consumption lower than 10 bottles per patient in average. These data represent the major progress made in 15 years. However, the rescuing staff must still be made aware of the importance of diagnosing devascularization in a context of multiple injuries: a VBS emergency involves limbs in which bony continuity, and sometimes even a skin bridge, may still be preserved. The vascular problems cannot be solved without resorting to the microanastomosed flap techniques. Lastly, the staff in charge of this kind of problems must treat upper limbs as well as lower limbs. Utmost surgical strictness is essential to avoid the major complication of such surgery: not only local failure threatening the functional results, but also the vital risks inherent in the reimplantation of a large limb segment. Reimplantation of an autologous limb has largely demonstrated its superiority over prostheses, even the most sophisticated ones.

Arm↗
PubMed1990

[Isolated ulnar nerve lesions. Results and sequelae after treatment at a specialized unit: apropos of 40 cases].

77 patients with an isolated traumatic ulnar nerve lesion were operated on between 1972 and 1982. 40 patients with more than 18 months of follow-up were reviewed with a new clinical quoting. 37.5 p. cent of satisfactory results were achieved with nerve sutures done in emergency, 56.3 p. cent with secondary nerve grafting. Factors influencing the results were age, level of the lesion and use of the microscope. 80 p. cent of the patients recovered a protective sensibility, but only one third discrimination. Patients considered sensory deficit as little cumbersome. Wartenberg's sign was noticed in 60 p. cent of our patients and a claw hand in 46 p. cent. Power grip was only 70 p. cent of the contralateral hand due to poor interosseous muscle recovery. The main disability was an instable thumb metacarpophalangeal joint in 70 p. cent. Subterminal pinch grip was weak and was improved by the transfer of the flexor digitorum superficialis of the ring finger. Cold hypersensitivity was noticed in 73 p. cent of our patients, but its frequency diminished with sensory recovery. Motor deficiencies were the most important and required early tendon transfers in older patients.

Adolescent↗
PubMed1989

[Functional treatment of closed boutonnière deformity using a dorsal digito-palmar dynamic extension splint].

We advise dynamic extensor splintage put on as early as possible within the first 6 weeks after the diagnosis of boutonniere deformity. This splintage runs from the dorsal aspect of the hand to the DIP joint which is left free to flex actively. This apparatus is left on for at least six weeks post injury. Sixteen patients have been treated in this way. Seven of them were monitored carefully. Only one had a bad result with DIP flexion still preserved. The others averaged a mean extension loss of 23 degrees, and no loss of extension in DIP joints. Active flexion both in PIP and DIP was perfectly preserved. The functional treatment without surgery seems to be a good technique in management of fresh rupture of the extensor mechanism in PIP joints.

Equipment Design↗