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S Gajisin

Publications and source records attributed to S Gajisin.

At least 19 recordsLinked to original sources
PubMed1998

The blood supply of the lumbrical muscles.

The blood supply of the lumbrical muscles was studied in 100 upper extremities from fresh human cadavers. Layer by layer dissection revealed the existence of different types of vascularity for the four muscles. The injection of coloured latex or Indian ink solution with gelatin showed the complex arterial network of these muscles together with their various sources of blood supply. Four separate sources of blood supply for each of the muscles were found: the superficial palmar arch (SPA), the common palmar digital artery, the deep palmar arch (DPA) and the dorsal digital artery. It was established that there were no anastomoses between the blood vessels of the tendons of the flexor digitorum profundus muscle and those of the lumbrical muscles. Considerable differences were observed in the details of the blood supply of the individual lumbrical muscles.

Aged↗
PubMed1998

Blood supply of the digital sheath.

One hundred upper extremities from fresh human cadavers aged 20 to 80 years were injected with coloured latex or Indian ink and gelatin. Under the dissecting microscope two main and one occasional source of vascularization of the digital sheath were identified. Originating from the digitopalmar arches, from the proper palmar digital arteries and occasionally from the arcus palmaris superficialis, a complex arterial system supplies the various parts of the digital sheath. The best vascularized area is the floor of the sheath, while the pulleys and the palmar surface of the sheath are less well vascularized. These data may be of interest to those involved in reconstruction of the tendons of the digital flexor muscles.

Adult↗
PubMed1997

[Replacement of flexor digitorum profundus tendons by transfer of flexor superficialis tendons. An anatomical study].

To date, the functional results of surgical treatment of flexor tendons lesions, particularly secondary repair, usually remain disappointing. However, experience has shown that tendon transfers, particularly for restoration of thumb flexion, constantly gives good results. In this anatomical study, the hands of 3 fresh cadavers were dissected in order to study the length of superficial flexor tendons prior to advancement on the same finger to replace the deep flexor or their transfer to adjacent long fingers in the case of destruction of both flexor tendons. The authors observed that, with the exception of the superficial flexor of the little finger, the other 3 superficial flexors can be used for advancement or transfer, either alone or associated with proximal elongation according to Rouhier's technique. The advantages and disadvantages of this method are discussed and compared with other deep flexor repair techniques (free graft, vascularized graft).

Biomechanical Phenomena↗
PubMed1996

[The vascularization of the common synovial sheath and the tendons of the flexor muscles of the carpal tunnel].

The detailed anatomy of the tendon apparatus, the blood supply of the superficial (FDS) and profundus (FDP) flexor muscles and the blood supply of the common synovial sheath in the carpal tunnel were studied on 200 hundred upper extremities from fresh human cadavers. The injection of coloured latex or the aqueous solution of India ink and gelatin revealed a complex arterial network. Dissection of the carpal tunnel revealed the existence of different sources of the blood supply of the tendons of the flexor muscles and carpal sheath. The different sources and zones of vascularization are described. This study concerns the synovial and tendinous apparatus of the flexor muscles as well as their blood supply in the carpal tunnel. These data may be of interest hand surgeons.

Adult↗
PubMed1995

Blood supply of subcutaneous tissue in the leg and its clinical application.

The vascular anatomy of the subcutaneous or adipose layer of the leg is described. The major arteries of the distal thigh and leg were injected with either a colored latex or an India ink and gelatin mixture to demonstrate the principal sources of blood supply to the skin and the superficial tissues of the leg. Microdissection and the technique of Spalteholz for dehydrating and clearing the tissues (rendering them transparent) facilitated the study of the direct and indirect arterial branches which form the three principal networks: the deep fascia, the subcutaneous or adipose layer, and the skin or the dermoepidermic layer. The results are of practical importance since the fascio-subcutaneous tissue layer can be used as a flap for covering soft tissue defects of the leg.

Adipose Tissue↗
PubMed1994

Mesotendons of the flexor pollicis longus muscle.

A study of 100 upper extremities from fresh human cadavers injected with colored latex or india ink and gelatin revealed the vascularization of the flexor pollicis longus muscle (FPL) tendon. This tendon was found to be vascularized from four different sources with anastomoses between them. Very rich anastomoses were observed between the terminal segments of the arterial branches which form the intratendineal network of the tendon itself.

Adult↗
PubMed1994

Ocular rectus muscle insertions revisited: an unusual anatomic approach.

Twenty-five normal adult eyes, taken from fresh human cadavers, were specially prepared in view of the measurements of the arc length of different segments of the globe. The distances measured between the anterior limbus and the scleral insertions of the rectus muscles were similar to those in previous studies with respect to the 'spirale de Tillaux' and a high interindividual variability, i.e. medial rectus 6.2 +/- 0.6 mm, inferior rectus 7.0 +/- 0.6 mm, lateral rectus 7.7 +/- 0.7 mm, superior rectus 8.5 +/- 0.7 mm. The distance between each pair of opposite rectus muscle insertions shows a high interindividual variability (horizontal axis 25.45 +/- 1.38 mm, vertical axis 25.55 +/- 1.45 mm), but the ratio between both distances was always equal to 1 (0.997 +/- 0.031) with a statistically significant correlation (2-tailed p = 0.96). This new approach to rectus muscle insertions may be important for a better understanding of some possible anatomically related factors in strabismus.

Adult↗
PubMed1993

Local vascular contribution of the superficial palmar arch.

The aim of the present study was to establish a precise topography of the arterial supply of the different layers in the palm of the human hand. Two hundred upper extremities from fresh human cadavers aged 20-80 years were injected either by coloured latex or by India ink and gelatine. Some of our specimens were treated by the Spalteholz technique of transclarification, while some others were treated by acid corrosion. All of the specimens were dissected under the dissecting microscope. The superficial palmar arch (SPA) is the main vascular structure of the palm of the hand. Regardless of its size and of its variation, in addition to the common palmar digital arteries, the SPA supplies the superficial flexor tendons, flexor retinaculum, median and ulnar nerves, tendon of the flexor pollicis longus muscle, lumbrical muscles, palmar aponeurosis and the skin of the palm of the hand. These data may be of interest to those involved in hand surgery.

Adult↗
PubMed1993

[Insertion of the Tenon capsule onto the rectus muscles].

The localisation and definition of the capsule of Tenon insertion on the rectus muscles is of prime importance to the strabismus surgeon. The depth of the superior sub-Tenon space was measured on 22 adult human eyes after fixation in formalin. Although the measurements revealed major differences between the eyes, the following results were found: inferior rectus muscle = 7.8 mm +/- 1.79 (5.2-13.0), medial rectus = 12.6 mm +/- 2.15 (8.4-17.2), superior rectus muscle = 16.7 mm +/- 2.39 (12.7-21.5), and lateral rectus muscle = 19.0 mm +/- 2.19 (14.5-22.0). Histological studies of 2 other human eyes confirmed the notion of a band of insertion on rectus muscles as the posterior limit of the sub-Tenon space. As far as this insertion, the capsule of Tenon is a dense connective tissue composed of many collagen and elastin fibers, but after the band insertion, it becomes virtual through its fusion with the perimysium of the rectus muscle.

Adult↗
PubMed1992

[Anatomic, histologic, and morphometric studies of the ocular rectus muscles and their relation to the eye globe and Tenon's capsule].

After having been the subject of several studies during the first half of the 20th century, the anatomical and morphological measurements of the ocular rectus muscles have recently been reinvestigated (e.g. L. Apt). At the Anatomy Institute in Geneva, similar measurements were performed on 25 human orbits as well as the depth of the subtenon space. The results show a large variation from one individual to another, although the "Tillaux spiral" was always respected. We have also shown that the ratio of the arc between each pair of opposed rectus muscles is a constant equal to 1 (0.997 +/- SD = 0.031). The subtenon space was defined morphometrically and confirmed histologically. All these measurements are important for practical aspects involved in the surgery of strabismus.

Eye↗
PubMed1991

[The ligaments of the fingers. Anatomical study of the Cleland ligaments].

The aim of this study was to establish a precise architecture of the retinacular ligaments of human digits. Sixty selected digits from human cadavers aged 40-70 years were used in this study. We were able to identify, under the dissecting microscope, two distinct ligamentous complexes: one proximal of greater importance and the other distal of lesser importance. Both structures extend from the periosteum as well as from the fibrous part of the digital sheath to the skin. There are many variations in size and in shape of these structures but they are not related to a particular digit. The role of these ligaments is to prevent the 'effet de doigt de gant', to stabilize and to maintain the neurovascular bundle of the digit at the moment of the digital flexion.

Adult↗
PubMed1988

The blood supply of the flexor retinaculum.

The anatomical details of the vascularization of the flexor retinaculum of the hand have been studied. The principal sources of blood supply were revealed by means of coloured latex injection and trans-clarification by the Spalteholz method. Micro-dissection demonstrated the existence of two networks, superficial and deep; the superficial network is formed by branches of the ulnar artery and the deep network by branches of the palmar superficial arch. These observations could have practical significance with regard to the site of incision in carpal tunnel operations.

Adult↗
PubMed1988

Arcus palmaris superficialis.

The purpose of this study was to investigate in depth the arcus palmaris superficialis in order to evaluate two different views of the superficial blood supply of the palm; the classical view which puts emphasis on the existence of the arcus palmaris superficialis and a new interpretation in which the arcus palmaris superficialis is not mentioned. Fifty upper extremities from fresh human cadavers of both sexes, age range 20-80, were studied. The observations showed that the arcus palmaris superficialis was present in 97% of the cases, that in 85% of the cases it anastomosed with different arteries originating from the radial artery. In 2% of the cases the arteria mediana anterior contributes to the arch and in only 3% of the cases was the arcus palmaris superficialis incomplete. Therefore, it can be concluded that the arcus palmaris superficialis is the main blood vessel of the superficial region of the palm.

Adult↗
PubMed1986

Vascular anatomy of the digital extensors.

Fifty upper extremities from fresh human cadavers age range 20 to 80 years were used in the study of the vascularization of the tendons of the digital extensor muscles. The blood supply to the tendon originates from different sources at different levels. At the level of the musculotendineal junction the tendon receives the blood supply through the arteries of the fleshy part of the muscle. In the synovial sheath the arteries reach the tendon through the mesotendon. In the metacarpal region and on the back of the digits the arteries reach the tendon through the paratenonium and through the branches of the digitopalmar arches. In all cases and at all levels the arterial branches to the extensors divide in a "T" shape manner into an ascending and a descending branch. Some areas of the tendon which are exposed to the less favourable mechanical conditions receive less blood supply.

Adult↗
PubMed1983

Vascularization of the extensor apparatus of the fingers.

An anatomical study was made of the dorsal digital apparatus, a complex anatomical structure responsible for the extension of the fingers, and it was found to have an adequate blood supply. The relative abundance of blood vessels supplying the dorsal digital apparatus, their anastomoses and the details of their branching should be of interest to those involved in the surgical repair of this structure.

Adult↗