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Biomedical subjects

W Dihlmann

Publications and source records attributed to W Dihlmann.

At least 19 recordsLinked to original sources
PubMed1992

[Pericoxal fat stripes and the capsule of the hip joint. The anatomical-radiological correlations].

The capsule of the hip joint can always be demonstrated on antero-posterior radiographs provided two conditions are met: 1. the so-called gluteus minimus fat stripe is shown and 2. the exposure is made in maximal external rotation which can be either active or, better still, passive. Under these conditions the joint capsule appears as a soft tissue band stretched between the margin ot the acetabulum and the upper end of the greater trochanter. Effusions or oedemas of the hip joint cause lateral displacement of the gluteus minimus fat stripe. Anatomical and radiological comparisons, including computed tomography, confirm that the joint capsule of the hip can be demonstrated in this way.

Adipose Tissue↗
PubMed1992

[Pelvic roentgenometry of the third kind: age- and sex-related measurement results in adulthood].

Normal values in adults for the hip joint (3.5-6 mm), the sacro-iliac joint (1-3.5 mm) and the symphysis (up to 7.5 mm) were obtained by measurements of a.p. views of the pelvis. Contrary to the literature there was no sex difference as regards the CCD. The roentgenometric features of the female and male pelvis depend on the pubic angle, the transverse diameter of the pelvic inlet and the sulcus paraglenoidalis. In females there are age-related changes consisting of a reduction of the pubic angle, increasing height of the symphysis components of the pubis and an increase in the transverse diameter of the pelvis. In the male, age changes consist of an increase of the symphysis component of the pubis and the transverse diameter of the pelvis.

Adult↗
PubMed1992

[Adhesive (retractile) capsulitis of the hip joint in diabetes mellitus. An x-ray histomorphological synopsis].

Adhesive (retractile) capsulitis of the hip joint is a rare complication (association) of (juvenile) diabetes mellitus. The clinical features, plain radiographic and CT findings and histomorphological appearances of this condition are described and attention is drawn to changes in the elastic tissue in the fibrosed capsule. Three diagnostic radiological features have been defined; in their presence, arthrography or diagnostic arthroscopy need not be performed.

Adult↗
PubMed1991

Acquired hyperostosis syndrome: spectrum of manifestations at the sternocostoclavicular region. Radiologic evaluation of 34 cases.

Thirty-four patients with chest wall hyperostosis, a condition which has been designated by various terms in the literature were evaluated radiologically. We prefer the name acquired hyperostosis syndrome (AHS), which we categorize into the complete, incomplete and possible form. In complete AHS, sternocostoclavicular hyperostosis is associated with axial and/or peripheral (endosteal, periosteal, enthesopathic, metaplastic) hyperostosis and with psoriasiform or acneform dermatosis. In addition, these three manifestations are accompanied by erosive or non-erosive peripheral and/or axial arthritis to a variable degree. Sometimes, concomitant findings which are consistent with ankylosing spondylitis are also to be found in the axial skeleton. AHS is manifested at 11 different sites on the anterior chest wall. Ossification forms of the costal cartilage, inflammatory enthesopathies (three different insertions) and focal hyperostoses as well as processes of remodelling of the ribs, clavicles and sternum which are described in detail have particular diagnostic significance. AHS can start simultaneously at one, two or several sites on the anterior chest wall. Conventional tomography (possibly supplemented by CT) is necessary for early diagnosis and for analysis of the various findings on the anterior chest wall.

Adult↗
PubMed1991

[Alloarthroplasty of the hip joint. Radiologic diagnosis of loosening and infection in cemented total endoprostheses].

Patients with problems following implantation of cemented total hip prostheses must be clinically examined. This examination is followed by a series of diagnostic imaging procedures. These include X-ray diagnosis, 3-phase 99mTc-MDP bone scans, scintigraphy for inflammation, and arthrography, performed singly or as sequential studies. X-ray findings and scintigraphic patterns arousing or confirming a suspicion of aseptic (mechanical) or septic (infectious) loosening of the prosthesis are evaluated and discussed.

Hip Prosthesis↗
PubMed1990

[Supercilium acetabuli. A stress indicator of the hip joint cartilage].

A thousand radiographs of the hip joints in adults were evaluated quantitatively and the following statistical conclusions were drawn: the normal forms of the supercilium acetabuli are either parallel or convex. Wedge-shaped supercilia indicate increased stress on the cartilage only in cases with hip dysplasia. A supercilium of more than 4mm raises the suspicion of increased stress on the cartilage. Normally, the joint space as shown on a radiograph does not fall short of 3mm. Eight formulas have been defined which can be used after planimetry of the supercilium and the articular surface in order to indicate increased stress on the cartilage and a risk of developing an arthrosis of the hip. These formulae are of practical value if the radiographs appear normal to visual inspection.

Acetabulum↗
PubMed1989

[The bursa iliopectinea--a morphologic-computed tomographic study].

Study of 80 anatomical preparations and CT of 130 patients has shown that the ilio-pectineal bursa may be non-communicating, communicating or septate. Under certain morphological and pathological conditions the ilio-pectineal bursa may be visible on CT. Amongst these is the presence of fat or calcium in or around the bursa. Effusions into the hip joint may make it possible to identify the bursa on CT, even when it is non-communicating. A posterior arthrocoele of the hip joint is described and its CT appearances are demonstrated.

Aged↗
PubMed1989

[Pre- and postoperative magnetic resonance tomography of osteochondrosis dissecans].

Thirty-five patients treated surgically and three treated conservatively were examined by MRT. This proved to be an imaging method which could provide information concerning the state of the bone fragments, the continuity of the joint cartilage and the state of reintegration of the dissected fragment. This was fixed by means of fibrin, autologous spongiosa and resorbable pins.

Follow-Up Studies↗
PubMed1989

[Does technetium scintigraphy in combination with gallium scintigraphy improve the differential diagnosis of aseptic and septic endoprosthesis loosening?].

In the majority of cases, 3-phase scintigraphy using Tc99m phosphate complexes is sufficient to diagnose a septic (infective) loosening of an endoprosthesis (hip or knee). Additional Ga 67 citrate scintigraphy should be considered only if technetium scintigraphy fails to supply an unequivocal finding. This is explained by the authors in detail.

Aged↗
PubMed1988

[Computed tomography of the soft tissues of the shoulder. 3. Periarthropathia calcificans humeroscapularis].

Computed tomography of the soft tissues of the shoulder in cases of calcifying tendinitis of the rotator cuff provides the following information: 1. Localisation of the calcium deposits within the rotator cuff. 2. Contours and density of the calcium deposits correlated with the clinical findings as described by Uhthoff et al. Ill-defined contours and non-homogeneous deposits are associated with more severe clinical features. 3. Computed tomography shows that apatite particles, which are not visible radiologically, may penetrate into the shoulder joint and produce synovitis with an effusion. This is of importance in local therapy.

Calcinosis↗
PubMed1988

[The acquired hyperostosis syndrome. Synthesis of 13 personal observations of sternocostoclavicular hyperostosis and 300 cases from the literature. 1].

Sterno-costo-clavicular hyperostosis (SCCH) is the most common manifestation of a syndrome, consisting of increased bone metabolism, mostly new bone formation and heterotopic ossification of fibrous tissue, which we have characterised as the acquired hyperostosis syndrome. In part I we discuss the terminology, radiological appearances, scintigraphy, clinical and laboratory findings, bacteriology, histology, nosology, complications, treatment and differential diagnosis of SCCH. Chronic recurrent multifocal osteomyelitis (CRMO) is regarded as a phenotype of SCCH, depending on the age. CRMO occurs in children, adolescents and young adults, SCCH predominantly in middle-aged and elderly adults.

Adult↗
PubMed1988

[The acquired hyperostosis syndrome. 2].

In the second part of this publication, we describe some additional findings in cases of sternocostoclavicular hyperostosis. These include focal hyperostosis of the spine, in the pelvis and in the extremities and psoriatic skin lesions and severe forms of acne (acne conglobata, acne fulminans). Other features, which are not diagnostic, include erosive or non-erosive peripheral arthritis and unilateral or bilateral sacro-iliitis. An analysis of our 13 patients and of the relevant literature indicates that the hyperostosis is due to increased bone metabolism and heterotopic ossification of fibrous tissue and that these are the pathogenic bases of the changes in the axial skeleton, the pelvis and the bones of the extremities. We have suggested a scheme which would categorize the syndrome into complete, incomplete and possibly acquired forms.

Adult↗
PubMed1988

[A holding device for standardized roentgenologic detection of ulnar, palmar and radial capsule ligament lesions of the metacarpophalangeal joint of the thumb. Hyperextensometer for the index finger metacarpophalangeal joint for determining laxity of the ligament].

A device has been designed to hold the limb for standardized radiological demonstration of lesions of the ulnar and radial collateral and palmar ligaments of the metacarpophalangeal joint of the thumb. The device also serves as a hyperextensometer of the metacarpophalangeal joint of the index finger with which to measure joint laxity. The simple mechanism allows routine application. Standardized stressed roentgenograms allow exact quantification of the extent of all lesions and consequently leads to adequate treatment.

Finger Injuries↗