In 56 patients with medial gonarthrosis high tibial osteotomy was performed using the SAAB jig, and another 43 patients with the same condition were operated on without this aid. Significantly greater precision was achieved in the removal of a wedge of the intended size with the aid of the SAAB ...

With the increasing number of intraocular lensimplants the retina surgeon is more often confronted with retinal detachment after lensimplantation. The treatment of pseudophakic retinal detachment is mostly a problem of examination. The Panfunduskop of Schlegel is a vary valuable aid and permits detection of most breaks situated anterior or on ...

The pulling of micropipette electrodes from glass tubing has been treated as a problem of viscous flow coupled with the Newtonian dynamics of the pulling apparatus. Analytical solutions are given from which the taper profile, tip diameter, and pulling time can be obtained. The physical principles of operation of micropipette ...

This first section deals with various techniques performed by the authors who conclude in favour of a living tissue graft sealing the oval window, particularly Teflon-piston against veingraft, i.e the "Teflon-interposition' technique. Intra-operative problems of associated diseases and of the technical difficulties encountered during stapedectomy, are related and their treatment ...

A discussion of "Some Clinical Manifestations of Structural Defects in a Borderline Personality," by Alan Krohn, M. D. Because the borderline patient presents the gamut of symptomatology and therapeutic responses, diagnosis and treatment have been problems since the beginning of psychoanalysis. With her key conceptualization of the "as if" personality, ...

At sex conversion operations on male transsexuals the glans penis is usually resected or used as a "portio" in the constructed artificial vagina. The glans penis and the clitoris are embryologically corresponding organs and it may be logical to conserve the glans as a clitoris in sex conversion operations. In ...

A case of atrial septal defect with idiopathic thrombocytopenia was successfully operated with the aid of heart-lung machine. The operation was performed under the administration of platelet rich plasma, fresh blood and adrenocorticosteroids before, during and after the operation. With the aid of these treatments, no severe hemorrhagic diasthesis was ...

An understanding of normal and abnormal postnatal skeletal changes can aid in the prevention, early recognition and proper surgical treatment of craniofacial deformities. Research findings may have important implications and applications in relation not only to the basic problem of change of bone form but also to the clinical problems ...

During 13 years about 8 per cent of 234 patients operated upon for hypospadias presented surgical problems of reconstruction of the urethra from the urethral meatus proximal to the penoscrotal junction. These cases commonly are referred to as perineal or penoscrotal hypospadias. The problem occurs when the urethral groove fails ...

While surveying the hygienic conditions in small to medium ceramic industries, it was noted that an acute thermal stress problem existed in kiln unloading operations being performed manually. A more detailed investigation of this problem in four typical ceramic factories confirmed that the thermal conditions imposed severe stress on the ...

The inversion problem is solved for a wide class of singular integral operators, in particular for Wiener-Hopf operators in several variables, Mihlin-Calderon-Zygmund operators on bounded domains, and Folland-Stein operators on compact nondegenerate Cauchy-Riemann manifolds.

Whilst appearing attractive, automation must be appraoched with caution. Much time, effort and money is put into curing 'symptoms' without really defining the problem. Too often organizations launch a programme of automation when what they really need is rationalization. Unless you know precisely how much time and effort is currently ...

The perimeatal approach to the condyle provides access to the area of the glenoid fossa by the combination of preauricular and postauricular incisions. Damage to the frontal branch of the facial nerve does not occur because the anterior tissues are not retracted excessively. The cartilaginous meatus is not transected during ...

One major problem looms among all others in the area of laundry and linen service, whether a hospital has an in-house operation, is part of a shared or central laundry, or uses a commercial service. That is the costly problem of controling linen consumption and replacement. A recent seminar offers ...

The paper reports an analysis of the relationship between deltamuH the proton electrochemical potential difference, and deltaGp, the phosphate potential. Depression of deltamuH and deltaGp has been obtained by titration with: (a) carbonylcyanide trifluoromethoxyphenylhydrazone; (b) nigericin (+ valinomycin); (c) KCl (+ valinomycin); and (d) rotenone. The uncoupler depresses deltamuH more ...

For many years, it was believed that the solvability of the integrability problem for a transitive Lie pseudogroup depends only on the local solvability of linear differential operators arising from the abelian quotients in Guillemin's Jordan-H?lder decomposition for the transitive Lie algebra associated to the pseudogroup. We provide an example ...

A general boundary value problem of variational type is considered for a general quasi-linear elliptic partial differential operator of order 2m in generalized divergence form. Such problems are considered on an arbitrary domain in a Euclidean space without hypotheses of boundedness on the domain or smoothness on its boundary. Contrary ...

To the patient seeking correction of a twisted nose, it is as important to obtain a good shape as it is to achieve normal breathing. The functional problem must be solved regardless of the extent of the resection required. The plastic surgeon may choose among many techniques, some of which ...

A tour of 4 months with a static Field Surgical Team supporting military operations is described. Some of the problems of resuscitation and anaesthesia which were encountered are discussed. The anaesthetist's training in intensive care and the management of acute medical problems have a major part to play in a ...

One minor anomaly of the external ear is a "third crus", which is an addition to the normal upper and lower crura at the anterior end of the anthelix. Another minor deformity is an extension of the crus of the helix, wherein it runs as a crest across the concha. ...

Tonsillectomy under general anesthesia, one of the most commonplace operations there are, is more of a problem for the anesthetist than for the surgeon. Once intubated, the child or adult will be protected from any operative risks by correct ventilation and the protection of his upper airways. The only problem ...

This article is in three sections. The first describes a number of radical new Swedish laws dealing with the working environment and ergonomics. The second section gives a method of problem identification which has been developed within Ergolab. Finally, a discussion is given of how better working conditions can be ...

Several difficulties arise when a surgeon embarks upon the Kelman-Phaco-Emulsification method of cataract extraction. The most common but yet the least expected are technical difficulties with a soft cataract. A step by step, illustrated method of avoiding the disasterous pitfalls is outlined in order to aid the novice or occasional ...

The recent invasion of southern Africa by cholera stimulated the establishment of a regional cholera reference laboratory and surveillance centre. This article describes its activities in general and details the methods employed in the isolation of Vibrio cholerae from sewage, water, seafoods, patients, and carriers. Importance is also attached to ...

A survey of tow truck services operating in a defined area of the south-east suburbs of Melbourne was undertaken to determine their potential for delivering emergency medical care at the scene of crashes. Most towing firms have an association with a panel-beating shop, and operate within a limited area of ...

Microsurgery is not a new tool to the urologist. Transurethral resection is probably the most challenging type of microsurgery, and we do it daily. The manipulations of microvascular dissections and anastomoses may be more intricate, but the basic concept of performing delicate procedures while looking down a tube is "old ...

The surgeon of today has at his disposal a large arsenal of technical aids. For the ear surgeon it is primarily the rotating drill which has helped him in the operating theatre. In spite of the fact that the drill is such an important tool in daily operative procedures, the ...

The incidence of pilot disorientation in fixed- and rotary-wing aircraft has been previously investigated, but special orientation problems of naval helicopter pilots engaged in operations at sea and landing on moving platforms have not been previously investigated. A questionnaire concerning disorientations was answered anonymously and individually by 104 active naval ...

This report describes a unique Hawaiian after-care facility the Filipino operated boarding home, and the approaches useful in consultation with the operators. The majority of the boarding homes for psychiatric patients are operated by recent Filipino immigrants. This fact is explained by their current social position and also by cultural ...

When the incision of the choroid is performed with the aid of the microscope, release of subretinal fluid becomes an absolutely controlled microsurgical procedure. In a consecutive series of 100 eyes, operated with perforation and buckling, an anatomic reattachment rate of 83% was obtained. There have been 4 complications directly ...

We present an objective measure of testicular viability intended to aid the surgeon in salvaging the testicle at the time of operation for torsion of the spermatic cord. Following the intravenous administration of 5 to 10 cc. of sodium fluorescein, the viability of the untwisted testicle can be determined by ...

Let E and F be vector bundles and D:E --> F an operator of order k. We associate a sequence of invariants ((l))(D), l >/= 0 with D which generalize the concept of curvature in a natural way. In the case where D = D(theta) is the differential operator of ...

Some problems have been encountered with the current design of the bayonet forceps, one of the more frequently used instruments of the neurosurgeon. By studying its function and operational use, a new design was conceived to make the instrument more amenable to the surgeon's hand, ie ergonomically suitable. This was ...

Retention in the pigeon and in the goldfish was measured 1 day or 2 weeks after the mastery of each of a series of color discrimination. The amount of forgetting in the pigeon increased with the number of prior problems and increased more rapidly at the longer than at the ...

The need for administrative know-how in libraries is great. Problems of administration in libraries do not differ significantly from those in other types of organizations. It behooves librarians to be aware of modern management theory, as developed and tested in the environment of business, and to adopt such useful tools ...

Present HF and VHF inter-troop communications equipment are unsatisfactory for operation in tropical rain forests. This is a direct result of excessive path losses for ground-wave and line-of-sight propagation, caused by dense jungle growth and tall trees. Purpose of the study was to devise antenna equipment that would improve the ...

Funnel chest, unless corrected, may lead to cardiorespiratory distress or psychic problems or both. Since operation to correct the deformity is relatively simple in infancy and much more extensive if done later, early surgical intervention is indicated. If the condition is not noted until the patient is beyond infancy, cardiorespiratory ...