Search PubMed⌕ Search

Biomedical subjects

U Mennen

Publications and source records attributed to U Mennen.

47 records · Page 3Linked to original sources
PubMed1984

The paraskeletal clamp-on plate. Part II. Clinical experience with fractures of the radius and/or ulna.

Clinical experience with 282 fractures of the radius and/or ulna treated by means of the paraskeletal clamp-on plate is presented and compared with results for 66 fractures not operated upon and 31 fractures for which conventional plating methods were used. As far as the healing time (average 12,3 weeks) post-healing joint movements, complication rate, morbidity rate, financial outlay, simplicity and versatility are concerned, the paraskeletal clamp-on plate proved to be greatly superior to conventional methods of internal fixation for forearm fractures.

Adolescent↗
PubMed1983

[Neck injuries In children].

Cervical spine injuries are often overlooked in young children with multiple injuries while diagnostic accuracy is reduced by difficulties in clinical and radiological investigation. Misinterpretation of normal radiographic appearances of vertebrae at different stages of maturity may lead to diagnostic confusion and inappropriate treatment. Two case histories are presented to illustrate these difficulties and guidelines are suggested to help establish the nature and extent of such injuries in young children.

Cervical Vertebrae↗
PubMed1982

A technique to evaluate bone healing in non-human primates using sequential 99mTc-methylene diphosphonate scintigraphy.

The assessment of bone healing through sequential nuclear medical scintigraphy requires a method of consistent localization of the exact fracture area in each consecutive image as the study progresses. This is difficult when there is surrounding bone activity as in the early stages of trauma, and also if complications should set in. The image profile feature, available from most nuclear medical computer software, facilitates this procedure considerably, as is indicated in the present report on bone healing in baboons. Together with roentgenology and histology a 99mTc-MDP study was in this way successfully done on the healing of long bone fractures experimentally induced in non-human primates. Different surgical implants were used. The results indicate that 99mTc-MDP accurately reflects the physiological activity in bone. The time-activity curves obtained are presently being studied together with extensive histology, bearing possible clinical application in mind.

Animals↗
PubMed1981

A new bone-holding clamp for use during internal fixation of fractures.

A new bone-holding clamp for general use during internal fixation of tubular bone fractures is described. The clamp overcomes the common problem of slippage of the reduced position of fracture ends during internal fixation. Further advantages include minimal damage to the periosseous soft tissue and periosteum, which means that the blood vessels are preserved, and the unrestricted working area provided during the operation. Owing to its design the clamp also acts as a self-retaining retractor. The clamp could be described as that 'extra hand' for which the surgeon so often feels the need during the critical stages of osteosynthesis.

Fracture Fixation, Internal↗
PubMed1981

A survey of spinal injuries from diving. A study of patients in Pretoria and Cape town.

A highly significant feature emerged from a study of patients with spinal injuries from diving treated at the H.F. Verwoerd Hospital and the Conradie Hospital, namely an area specificity with regard to cause of injury, circumstances and social habits. The typical patient presenting with spinal injuries from diving is a young male, the injury often being the result of the facing of a 'challenge' at a social gathering where alcohol consumption played an important role. The injurious dive is usually not a first attempt and is often into a pool of some sort or at a location well known to the patient. The forehead or vertex may strike either the bottom of the pool, a rock, or a sandbank, without any additional injuries, e.g. to the hands. The radiographs reveal a flexion-axial compression injury to the C4-C6 region of the spine, leaving the majority of such patients in a state of permanent and complete tetraplegia. Although many of these catastrophes are truly accidental, a large number of patients admit to a careless attitude which was the direct cause of their misfortune.

Adolescent↗
PubMedDate not supplied

Serum zinc, sodium, calcium, magnesium and potassium levels and standard diet in leprosy patients.

Serum zinc levels were estimated in different types of leprosy by means of the atomic absorption spectrophotometry method in 64 leprosy patients, comprising of tuberculoid tuberculoid (TT) (5), borderline tuberculoid (BT) (6), borderline borderline (BB) (10), borderline lepromatous (BL) (13), lepromatous lepromatous (LL) (14) and burnt-out leprosy (BO) (16). These findings were evaluated in comparison to 86 normal control subjects who were served the same standard diet. Serum zinc levels were significantly low in the total leprosy group. The findings of this study are of clinical importance as zinc deficiency can be one of the factors involved in suppression of cell-mediated immunity (CMI) in lepromatous leprosy. This again has a bearing on the management of wounds and wound healing. This study also reveals that altered levels of the serum elements (eg. calcium and sodium) have a direct association with the disease and not with food deprivation.

Calcium↗