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Biomedical subjects

J Bruns

Publications and source records attributed to J Bruns.

At least 73 records · Page 4Linked to original sources
PubMed1992

[The incidence of hypoxia in the immediate postoperative period].

Arterial oxygen saturation (SaO2) was continuously measured using a pulse oximeter in 214 spontaneously breathing adult patients in a recovery room. Hypoxaemia was defined as an SaO2 of 90% or below. The patients were divided into three groups: in group I (n = 83) monitoring was started immediately after arrival in the recovery room, just before oxygen therapy was begun. The patients in group II (n = 106) were observed during and after oxygen therapy. Patients in group III (n = 25), most of whom had regional anaesthesia, were not treated with oxygen in the recovery room. RESULTS. Clinically unexpected hypoxaemia occurred in all three groups: hypoxaemia was observed in 32.6% of patients before oxygen administration (group I). Under oxygen therapy SaO2 was normal in 99.4% of the patients; however, in 30.2% of patients hypoxaemia recurred after oxygen had been discontinued (group II). Hypoxaemic periods were seen in 24% of patients in group III. CONCLUSION. The results indicate the necessity of oxygen administration during transport and in the early postoperative period to all patients. Even during and after regional anaesthesia or brief general anaesthesia, oxygen administration appears to be indicated. Monitoring of SaO2 with a pulse oximeter has become an increasingly standard procedure in modern anaesthesia and should be mandatory.

Adult↗
PubMed1991

[Os trigonum syndrome].

The os trigonum is one of the most frequent accessory bones of the foot. It is located dorsal of the talus. Os trigonum syndrome means a typical pain syndrome localized in the back-foot caused by this ossicle. This syndrome occurs mostly in man with sports activities accompanied with intensive stress to different parts of the foot. It can be caused particularly by standing on the toe in the "en-pointe-position" in ballet dancers when the flexor hallucis tendon is under maximal tension or by activities accompanied with maximal plan-tarflexion in soccer players for instance. Typical complaints, findings and different therapeutic procedures are demonstrated in two cases. Therapy includes different non-operative methods. Resistance to non-operative procedures is indication for operative therapy. Excision of this ossicle is surgical therapy of first choice.

Adolescent↗
PubMed1991

[Synovial giant cell tumor of the suprapatellar bursa].

Both, giant cell tumor and pigmented synovitis are considered to be reactive and borderline proliferative lesions of the synovial cells. We report the case of a 48 year old woman presenting a mass in the knee. Despite of the use of a wide panel of different radiological examinations, diagnosis eventually had to be confirmed by histology.

Female↗
PubMed1989

Advantages of diagnosing bacterial spondylitis with magnetic resonance imaging.

We report on 16 cases of suspected spondylitis in which we used magnetic resonance (MR) imaging to confirm or exclude the diagnosis. MR has several advantages, one of which is to permit diagnosis of this disease in the early stages without major risks. In addition, MR permits recognition of complications such as paravertebral or intraspinal abscess formation with a high security and accuracy. Moreover, it is possible to show spondylitic alterations in three different planes. To differentiate this disease from metastatic or tumorous lesions the technique with T1- and T2-weighted images is helpful. As a result, MR imaging can shorten the time between onset and diagnosis of spondylitis.

Bacterial Infections↗
PubMed1989

[The "positioned image" of the talo-calcaneus joint in instability of the posterior distal ankle joint].

With regard to the very common disease of sprained ankles the combined tear with ruptures of ligaments of the subtalar joint are possible. Even an isolated instability is known as the reason of long lasting post-traumatic complaints. Using the apparatus of Scheuba, well-known in diagnosing instabilities of the knee and ankle joint, a new standardized method controlling instabilities of the subtalar talo-calcanear joint is introduced. In an experimental investigation this radiological technique has been tested out in cadaveric ankle joints (nine joints) with artificial ligamentous lesions. The results show that in all cases an instability is recognizable radiologically using this technique. For clinical use the bilateral examination is recommended failing standardized values for unilateral use.

Humans↗
PubMed1989

[Blockade of the suprascapular nerve in shoulder pain].

The pathological course of the most common diseases of the shoulder includes pain as a main symptom. Besides other methods of treatment the infiltration of the suprascapular nerve can improve the therapeutic methods in many cases. The technique of Gordh, used as an adjuvant procedure, is shown. Since we used this technique of local anaesthesia, in 32 of 42 cases a temporary release from pain could be achieved. In 6 more patients it led to an significant reduction of pain. In conclusion this method of local anaesthesia can be recommended as an additional treatment of patients with pain of the shoulder because the rate of complications is low and the technique can easily be done.

Cervical Plexus↗
PubMed1988

[Osteochondrosis dissecans tali and sports].

26 out of 38 patients with Osteochondrosis dissecans of the talus and treated surgically were examined in a follow-up. The mean time of this postoperative follow-up after surgery was nearly 56 months. Anamnestic answers show that sport activities besides a sprained ankle joint are two of the most common factors leading to this disease. All patients without sport activities had suffered from a sprained ankle with or without ligamentous ruptur. Most of the disciplines were activities with a strong load for the ankle joints. Besides this no other etiological reason could be found in such a frequency. After surgical treatment 14 of the 22 sportsmen regained their full sport abilities, 7 of them could perform only a limited activity in sports.

Adolescent↗
PubMed1987

[Comparative study of the stabilizing effect of conservative-functional measures of the unstable upper ankle joint].

In a comparative study the value of castless immobilisation methods for stabilising the lateral ankle instability was examined. For this the dimension of the lateral talar tilt as a sign for chronic lateral ankle instability in 32 sportsmen with chronic ankle instability was checked initially. Afterwards the reduction of this instability due to the application of the tape-bandage and the "ankle-brace" was tested under the same standardised conditions. In regard to the reduction of the lateral talar tilt a reduction of this instability of the ankle joint is possible significantly. But compared to the normal talar tilt showing a stable ankle joint, it is not possible to reach this in all cases of ankle instability. So for treatment of the lateral ligament rupture it is necessary to use the usual cast for stabilising the joint after ligament suture before reduction of the time of immobilisation is possible. The use in cases of chronic instability or as a precaution method is not restricted when a sufficient active stabilisation is possible.

Ankle Injuries↗
PubMed1987

[Involvement of the inner malleolus and deltoid ligament in supination trauma of the ankle joint].

Additional ligament ruptures or fractures of the medial side of the ankle joint accompanying the lateral ligament rupture are rare. These injuries are more often in traumas with pronation-eversion movements of the foot. In cases of lateral ligaments ruptures we only found in 2.8% and in 5.9% additional medial injuries. This is confirmed by different biomechanical experiments. Experimentally the delta ligament rupture could mostly be caused by pronation-eversion movements or by forced plantar flexion of the foot. The diagnosis of bony lesions of the medial malleolus might be easy by X-ray, but ligament lesions of the medial ankle joint can be diagnosed easily too be using the stress X-ray controlling the medial talar tilt as a sign of medial instability. Because the necessity of surgical treatment is less important than of the lateral ligaments we recommend this procedure in cases of bilateral instability or if dislocation is obvious.

Ankle Injuries↗
PubMed1986

The gluteal approach to the ischium.

This paper describes a gluteal approach to the ischium which facilitates a good exposure of the whole region from the lower part of the ischium to the pubic ramus and allows extensive resections and partial hip reconstruction if necessary. The approach is demonstrated as used in two cases - one benign (desmoplastic fibroma) and one malignant tumor (chondrosarcoma).

Buttocks↗
PubMed1983

Motoneurons of M. semitendinosus in domestic and wild pigs. A horseradish peroxidase and cord-survey study.

In domestic and wild pigs motor nuclei of the M. semitendinosus were labelled by retrograde transport of horseradish peroxidase (HRP) from muscle to spinal cord. Further motoneurons in the lumbosacral cord were stained with Luxol-fast-blue and cresyl violet. Motoneurons innervating M. semitendinosus were present in the ventral horns of the last (6th) lumbal and the first sacral cord segments. They were localized within two motor columns lying parallel to each other in the medial and lateroventral position. Both parts of the semitendinosus motor nuclei showed a spindle-like shape with both cranial and caudal enlargements. Localization, extent, and shape of the semitendinosus motor nuclei were similar in domestic and wild pigs. The average motoneuron diameter was larger in domestic than in wild pigs. The lumbosacral cord of the wild pig was thicker than that of the domestic pig. It is suggested that the size of alpha-motoneurons has increased as a result of selective breeding after domestication. This process might correlate with a higher incidence of myopathies in domestic pigs.

Animals↗
PubMed1983

[Articular ligament rupture of the ankle joint].

We report about 142 cases of acute injuries of the fibular ligament lesions of the ankle joint treated by surgery. In 2.1% no rupture was found. A follow-up examination and X-ray examination was done after several month for 75 of these patients, and a good result without any sign of instability of the ankle joint was achieved in 84% to 86.7%. Complications were found in 2.1% (secondary healing, no further complications). In order to these results we recommend the treatment of the fibular ligament lesion by surgery.

Adolescent↗
PubMed1979

[Typing ACP isoenzymes in blood stains: test limits and temperature dependancy (author's transl)].

Two series of test blood stains of known red-cell acid phosphatase types A, AB, AC, B, BC, and C are applied to two different types of stain carriers (glass and cotton) and stored at different temperature ranges: (a) 37 degrees C at high air humidity, (b) 22 degrees C, (c) 4 degrees C, and (d) - 20 degrees C. Electrophoresis is carried out either on cellulose-acetate-foils or on thin agarose layers. Visualisation of the isoenzyme sites is achieved using umbelliferyl phosphate as a substrate. The most important results are: Electrophoresis on "Cellogel"-foils turns out advantageous compared to agarose since (a) less stain material is required, (b) reproducibility is rather reliable, and (c) electrophoretic separation is clearer. Blood stains on glass are identified after longer periods of storage than stains on cotton. If stains are stored at room temperature the time limits of demonstration are in the range of 3 to 6 weeks. The size of the sample necessary for demonstrating varies widely. Approximately twenty to twenty-five per cent of a blood drop are needed. The method described is recommended as practicable and reliable.

Acid Phosphatase↗