Biomedical subjects

M Sauerbier

Publications and source records attributed to M Sauerbier.

63 records · Page 4Linked to original sources

PubMed1998

[Prefabricated flaps, a new reconstructive concept].

Microsurgery has entered its third generation. Functional and aesthetic requirements have been steadily increased with the refinements of microsurgery. The new principle of prefabricated flaps are another step to match these requirements. These prefabricated flaps can either be created by expanding known flap donor sites or creating entirely new flaps by implanting AV-loops or vascularized fascia. Principles and indications of this new technique will be elucidated by clinical examples.

Facial Neoplasms↗

PubMed1998

[A new method of microvascular anastomosis: clips with a soluble stent].

In this study, we investigated a new method of microvascular anastomosis using titanium clips combined with a soluble intraluminal stent. This method was used to perform anastomoses of the common carotid artery in five NZW rabbits and the abdominal aorta in five rabbits. Five rabbits ears were isolated on their central vascular pedicles. The central ear artery was transected and anastomosed using the stent/clip technique. In five carotid arteries, a conventional sutured anastomosis was performed. All anastomoses were patent at POD 1, 7 and 21. The average time to perform stent/clip anastomoses was significantly (p < 0.001) shorter than conventional sutured anastomoses (2.5 min vs. 9 min). There was no observable side effect from the stent material and no evidence of peripheral emboli. The stent/clip technique is an easy, fast and safe method of microvascular anastomosis.

Anastomosis, Surgical↗

PubMed1998

[Compression of the ulnar nerve in Guyon's canal by a traumatic aneurysm. A case report].

A patient developed after an occupational trauma with fall on the ulnar edge of his right hand pain and swelling in the ulnar area with reduced sensation in the fourth and fifth finger. After examination performed by a neurologist, ulnar nerve-entrapment was diagnosed and operative treatment was indicated. The release of the ulnar tunnel showed a traumatic aneurysma of the ulnar artery compressing the superficial branch of the ulnar nerve. The tumor was removed and end-to-end anastomosis ensued. Four weeks after surgery, examination showed complete recovery. Various reasons of ulnar tunnel syndrome are discussed.

Adult↗

PubMed1998

[Mid-term results of scapho-trapezio-trapezoid arthrodesis in aseptic semilunar bone necrosis stage IIIa/b].

The mid-term results of 20 cases of Kienböck's disease treated with scaphotrapezio-trapezoid arthrodesis with an average follow-up period of 25 months between 1993 and 1997 are presented. Clinical results were good with regard to pain, grip strength and range of motion; the results with regard to the DASH questionnaire were very good. It can be concluded from this study that STT arthrodesis is a useful procedure for the treatment of Kienböck's disease in stage III.

Adult↗

PubMed1997

[Plastic surgery defect coverage in the area of the pelvis and trunk].

Complex defects of the trunk and pelvic region are rare, but are mostly the sequelae of serious conditions. Stable soft tissue coverage after radical debridement of all avital tissue may be of vital importance for the patient. The article will demonstrate the options of plastic surgery procedures that should be known by the general surgeon to be eventually integrated into a interdisciplinary therapeutic concept.

Abdomen↗

PubMed1997

[The distally pedicled suralis flap for the defect coverage of posttraumatic and chronic soft-tissue lesions in the "critical" lower leg].

Vascular diseases and/or sequelae of various systemic diseases are frequently associated with therapy-resistant soft tissue lesions in the lower extremity. Neurovascular pedicled island flaps without the need for the sacrifice of major vessels offer the possibility to save the lower limb from amputation. The long pedicle allows for a wide, tension-free arc of rotation. Major studies of clinical applications at the critical lower extremity have not been reported yet. 14 patients with chronic ulcerations in problematic areas (e.g. ankle, tibia) underwent definitive reconstruction using this flap. Complications were mostly observed at the donor site. In one patient major amputation was necessary due to the development of sepsis. In all other cases adequate coverage and limb salvage was achieved. Excellent padding, variable size and the modest nature of the flap enlarges the variety of plastic-reconstructive procedures in the lower extremity.

Adolescent↗

PubMed1997

[Post-traumatic carpal collapse (SLAC- and SNAC-wrist)--stage classification and therapeutic possibilities].

Longstanding scaphoid nonunion or scapholunate ligament injuries can lead to carpal collapse. SLAC-wrist (scapholunate advanced collapse) following scapholunate dissociation and SNAC-wrist (scaphoid nonunion advanced collapse) after missed fusion of scaphoid fracture should be differentiated. Severity of degenerative changes is classified by three stages. In stage I where arthrosis is limited to the radial styloid reconstructive procedures of the scaphoid or scapholunate ligament are the treatment of choice. In stage II including arthrosis of the radioscaphoid joint and stage III with additional arthrosis in the midcarpal joint these procedures are excluded. Salvage procedures preserving wrist mobility like midcarpal fusion or proximal row carpectomy are preferable to total wrist fusion which represents the last line of defence.

Arthrodesis↗

PubMed1997

[Clinical examination of the injured wrist].

A highly differentiated clinical examination of the wrist joint has been established in the past years. The history of the accident is usually unreliable, but patient's statement of a hyperflexion injury should alert for a fracture of the scaphoid tubercle. First of all, X-rays of the wrist indicate therapy in the case of fractures and gross dislocations. Only after some days of reduction of pain and swelling, a thorough clinical examination will be possible, which consists of: localizing points of tenderness, in particular the scapho- lunate, lunato-triquetal and the scapho-trapezio-trapezoid (SL-, LT- and STT-) joints and the triangular fibrocartilage (TFC); testing for abnormal dorso-palmar shifts of the carpus and the ulnar head; provoking catch up clunks by radio-ulnar movements of the clenched fist; provoking subluxations, in particular of the scaphoid in Watson's test; provoking pain in the discuss grinding test. Comparing clinical diagnosis with arthroscopic findings in 37 patients, the results for ligamentous lesions in general, SL ligament lesions in particular and for TFC lesions were as follows: sensitivity 100%, 91% and 69%, resp.; specificity 77%, 77% and 67%, resp.; positive predictive values 75%, 62% and 61%, respectively. In conclusion, exact clinical examination is a reliable tool to determine further diagnostics and therapy of wrist injuries.

Arthroscopy↗

PubMed1992

[Advanced carpal collapse (SLAC-wrist) in scaphoid pseudarthrosis. Therapy concept: medio-carpal partial arthrodesis].

Longstanding unstable scaphoid nonunions inevitably lead to carpal collapse and symptomatic secondary arthrotic changes, ruling out reconstructive procedures to the scaphoid itself. Partial mediocarpal fusion, however, can preserve some wrist motion and markedly reduce or even eliminate wrist pain. By correcting the malalignment of the lunate and capitate, carpal height is restored. By excision of the scaphoid, its destroyed articular surfaces are removed. In 26 of 31 patients undergoing mediocarpal fusion, complete or at least significant reduction of wrist pain was observed. Average grip strength increased by 23%, whereas wrist mobility decreased by 33 to 40% with a relatively short follow-up of 14 months. Total wrist fusion remains the last line of defense.

Adult↗