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Biomedical subjects

H Guerin-Surville

Publications and source records attributed to H Guerin-Surville.

At least 19 recordsLinked to original sources
PubMed1998

Anatomic bases of a new technique of juxta-acetabular osteotomy. Technical principles and performance.

Pelvic osteotomies were developed to increase or restructure the acetabular surface. Periacetabular osteotomies are considered the most difficult from the technical point of view and necessitate sufficient residual cartilaginous surface. Juxta-acetabular osteotomies avoid major disorganization of the pelvic framework and allow easier reorientation of the acetabulum. The authors present a technical variant that preserves the entire posterior column, as in the Ganz osteotomy. The effects on the vascularisation of the periacetabular region are strictly the same and there is no necrosis of the subchondral bone. This osteotomy is easier to perform, because of a single positioning associating two simultaneous approaches. The osteotomies are rectilinear and easy to check peroperatively by fluoroscopy thanks to this positioning. Another valuable aspect of this double approach consists of very easy correction of "automatic" unwanted retroversion due to the lowering of the acetabular roof. This unintended displacement is rarely reported in the literature, despite its anatomic evidence in 3-dimensional CT-scan reconstructions for pre- and peroperative evaluation.

Acetabulum↗
PubMed1993

[The frondiformis ligament and stabilization of the posterior tarsus].

The frondiformis ligament is a part of the retinaculum extensorum of the instep. Actuated by the tendons of the extensor digitorum longus, it takes a direct effect on the talus and the calcaneum, induces the valgus of the tarsus and contributes to the stability of the ankle and the foot.

Ankle↗
PubMed1993

Partial cervicosternotomy: a useful anterior surgical approach to the cervicothoracic junction.

Access to the cervicothoracic junction, whether by lower anterior cervical or transthoracic approach, is particularly difficult. The authors propose partial cervicosternotomy which allows the T3-T4 disk to be reached satisfactorily in 50% of cases and in the remaining 50% allows direct anterior control of the upper two thirds of T3. The advantage of this approach is that it provides direct access to the cervicothoracic junction without leading at the same time to the reconstruction problems caused by the uni- or bilateral sternoclaviculotomies proposed until now. A detailed anatomical study of the arrangement of the intercostal vessels shows that this strictly median approach presents no risk to the medullary vessels thanks to the abundant anastomoses in this region. However, the use of this method may be limited if the aortic vessels have an anomalous origin. Pre-operative angiography is therefore necessary each time T3 must be reached. This approach has already been successfully used in tumor surgery for excision and reconstruction of lesions involving the cervicothoracic region.

Humans↗
PubMed1992

[The posterior interosseous artery. Descriptive anatomy. Possibilities of clinical and orthopedic applications].

Study of 25 forearms of fresh cadavers, whose the arteries have been injected with colored latex. The posterior interosseous artery is known for its superficial branches, which allow to autonomise cutaneous dorsal flaps. Its way, along the ulna allows to imagine other possibilities by use of the constant branches of this artery, which supplies the proximal and the distal extremities of the bone. The proximal branch is the posterior recurrent radial artery, which supplies the posterolateral face of the proximal pars of the diaphysis, in touch of the insertions of the supinator muscle, and the lateral edge of the olecranon. The distal arteries shape 2 or 3 fascicles, which disperse on the extremity of the diaphysis and the cervical pars of the ulna. To realize a vascular pedicle with the posterior interosseous artery, two cases can be envisaged: use of the distal ulnar epiphysis and creating of a direct pedicle. use of the proximal ulnar epiphysis and creating of a recurrent pedicle.

Anastomosis, Surgical↗
PubMed1992

[The intermetatarsal transverse ligaments and their connections with the tarsometatarsal articulations].

The authors have performed 20 systematical dissections of the distal part of the foot, conserved in the Toulon's liquor and 3 dissections of fresh cadavers. The last ones have been submitted at different puttings in charge before and after the resection of the intermetatarsal transverse ligament. The intermetatarsal transverse ligament is supple, extensible, but very strong. It constitutes the area of convergence of all the neighbouring fibrous structures and of several tendons of the foot. It connects together the heads of the metatarsus. It renders them jointly liable and its action is reflected above. By its modulating of the convergence of the metatarsus and their necessary associated palmar inclination, by its limitation of their divergence in relation with their dorsal inclination, it modulates and it limits the amplitude of the tarsometatarsal joints. It is helped for that by the little intermetatarsal transverse ligaments, whose the presence has been always confirmed. The metatarsus varus, very frequently associated with the hall valgus, means the escape of the first ray from the effect of the transverse intermetatarsal ligament.

Biomechanical Phenomena↗
PubMed1992

[Extension of the fingers. III. Morphologic and structural study].

The volar fascicles of the interosseous muscles possess two separate components: the proximal and glenoidal one, the distal and aponeurotic other. The armature of the dorsal aponeurosis is constituted the deep, the central and the collateral expansions of the extensor digitorum muscles, and the interosseous muscles, whom are added the lumbrical muscles. The deep expansions are constant and are fixed respectively at the basis of the first phalanx. The central and the collateral expansions constitute equally the central and the collateral, then terminal tendons, which are respectively fixed at the basis of the second and at the third phalanx. The unitive structures: dossiere, triangular and retinacular ligaments are intricate with this of the armature and render jointly the whole. All the concerned fascicles have the mechanical and histological characteristics of the tendon.

Biomechanical Phenomena↗
PubMed1992

[Extension of the fingers. IV. Morphologic and structural study].

The putting in tension of the dorsal aponeurosis of the digits induces its retraction and the nearness of its insertions on the basis of the 3 phalanges. It depends on the extensor digitorum, interosseous and lumbrical muscles. The aponeurosis is not a single driving belt, but set off in itself 3 types of reaction: 1) The gliding on the sides of the pyramid, which constitute the proximal epiphyses of the phalanges. It suppresses the central dorsal-ward tensions. 2) The displacement of the axes of insertion and rotation of retinacular ligaments inducing collateral volar-ward tractions. 3) The modifications of the way of the structures of transmission: at one time the lengthening of the way is induced by the interactions of the fibers; at other times a shortening is suppressed by the extension of the close proximal joint. Analysis of the different fibrous and fascicular interactions and translations.

Biomechanical Phenomena↗
PubMed1992

[The carpal synovial sheaths and their vascularization].

The synovial sheaths of the flexor digitorum of 70 pieces of fresh cadavers have been studied on the whole of their length as far as the basis of the fingers: 20 have been injected with a latex or a physiologic solution, after the ablation of the palmar aponeurosis and of the superficial palmar arch. The arteries of the 50 other pieces have been injected with coloured latex solution from humeral artery. The proximal limit of the superficial sheaths is located 5 centimetres above the radiocarpal articular line and this of the deep sheaths 7 centimetres. In the metacarpal area, the superficialis central sheath presents peritendinous expansions, which realise an uninterrupted connection with each digital sheath. It is the aponeurotic and vascular extrinsic compressions, which simulate the interruption of these expansions. The proximal synovial arteries have a muscular origin. The antibrachial collateral arteries, 3 pairs in number, arise from the radial and the ulnar arteries. The distal synovial arteries come from the palmar arches and from their branches: superficial branches for the superficial sheaths and deep branches for the deep sheaths. There is many anastomoses between the different synovial arteries. Two are particularly developed and connect the proximal arteries to the palmar arches: the superficial longitudinal anastomotic artery; which runs close along the medial edge of the median nerve; the deep longitudinal anastomotic artery, which gives the nutritious branches for the tendons of the flexor digitorum. This disposition allows to create two synovial flaps of gliding and vascular help, centred on the anastomotic longitudinal arteries, pediculated on the volar archs and distal-ward rotated.(ABSTRACT TRUNCATED AT 250 WORDS)

Anastomosis, Surgical↗
PubMed1992

[Finger extension. I. History. State of knowledge].

Recapitulation of the principal stages concerning the descriptive and the functional anatomy of the extensor apparatus of the ulnar digits. They can be written in the following frame: The Gálien's theories of the exclusive role of the extensor digitorum muscles prevail during more as a millenium. The indispensable conjoined action of the interosseus muscles through the collateral tendon is demonstrated by Duchene in 1867. The role of antagonistic muscles is clearly showed by Bouvier in 1851 on the level of the metacarpo-phalangeal joints and by Valentin and Tubiana in 1962 on the level of the proximal interphalangeal joints. The role of the oblique retinacular ligament on the extension of the third phalanx is specified in 1956 by Landsmeer.

Anatomy↗
PubMed1992

[Finger extension. II. Materials and methods].

The study of the extensor apparatus through different methods concerns 200 fingers, the most of fresh cadavers. The dissection through direct observation or with surgical microscope of the dorsal aponeurosis of 30 fingers has been completed by an histological study of 10 fingers. The mechanic properties of each dorsal aponeurotic structure has been tested by extensometry on 12 fingers. The functional study of the role and of the transmission of the different motor components concerns 128 fingers. It has been completed by experimental sections of each aponeurotic structure concerning 20 fingers.

Finger Injuries↗
PubMed1991

The lumbar mamillo-accessory foramen: a study of 203 lumbosacral spines.

We have examined 203 lumbar and sacral skeletal specimens and have noted the frequent occurrence of a mamillo-accessory foramen, formed by the ossification of the mamillo-accessory ligament. The dorsal ramus of the lumbar nerve passes through this foramen. At the L5 level, this foramen is found frequently: in 26% of the cases on the left side and in 13.5% on the right. In some cases it is seen as a simple, deep notch. It is found much less frequently at L4 and almost never seen above. It is equally rare at the sacral level where it is formed by a narrowing and closure of the groove between the zygapophyseal joint and the sacral lateral mass. The authors propose that these bony foramina are a manifestation of osteoarthritic changes and that they could, in certain cases, irritate or compress the dorsal ramus along its passage.

Humans↗
PubMed1990

Properties of the fibrous structures of the wrist.

Every fibrous structure of ten wrists of fresh cadavers has been the object of an elastometric study. The opposite wrists have been studied surgically and then histologically with the optical microscope. Comparison between the two shows a close relationship between the mechanical features and the morphology of the bundles, which proved also to be perfectly measurable. It also displays the great differences between ligaments and tendons. Histological study of the tendons and ligaments of four other wrists subjected to manoeuvres of axial loading, rupture and bending, reinforces these statements. The therapeutic consequences are considered.

Biomechanical Phenomena↗
PubMed1990

[Cartilaginous and bony anatomy of the human cotyloid cavity: preliminary study for the analysis of the specific dynamics of cotyloid cornua].

Recent studies on acetabular and periacetabular deformations help to understand hip functioning. They encourage a new anatomic analysis of the bony and cartilagenous frameworth of the hip. The authors report as biomechanical preleminary, a radiological and anatomical study on the behavior of the periacetabular region. The results are compared to the anatomical litterature and conclusions are drawn.

Acetabulum↗
PubMed1990

[Anatomo-radiologic approach of the mechanical pathology of the upper fibulo-tibial joint].

The authors report a study of 150 cadavers dissections. The morphology and topography of the proximal tibiofibular joint were analysed. The numerous anatomo-radiological variations encountered explain the different pathologies seen in clinical practice. The authors insist on the influence of this joint on ankle motion and recommend an association of a distal diaphyseal resection of the fibular when an arthrodesis of the proximal tibio-fibular joint is performed.

Autopsy↗
PubMed1989

[Elastometric study of the distal scaphoid ligamental complex and the scapho-lunar ligament].

Six wrists from fresh cadavers have formed the subject of a functional, histological and biomechanical study. This one has been realized by two methods: the one analytical, the other in the whole and in situ. The diverse experiences show up the pre-eminent role of the distal scaphoid ligamentous complex relative to the scapholunar ligament. This fact is in opposition to the generally admitted theories. It modifies the therapeutic approach to lateral carpal instabilities.

Biomechanical Phenomena↗