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Biomedical subjects

U Lanz

Publications and source records attributed to U Lanz.

At least 109 records · Page 6Linked to original sources
PubMed1984

[Replantation of parts of the distal phalanx without venous anastomosis].

In six cases parts of the distal phalanx were replanted with arterial anastomosis alone without suture of a vein. With heparinisation venous haemorrhage continued for two to three days. After this time venous drainage was sufficient through new vessels and venous bleeding stops. This method is only a salvage procedure when venous congestion develops or with distal replants where venous repair is not possible.

Amputation, Traumatic↗
PubMed1983

[The compression glove--a useful tool in hand surgery].

Edema of the hand of no matter which cause prevents adequate active finger motion. Persistent swelling may lead to secondary shrinkage of collateral ligaments and fibrosis of paratenon. A custom made compression glove has proven to be an effective tool in reducing edema and preventing secondary damage. It has been useful in treating posttraumatic or postoperative edema and trophic disturbances of the hand.

Clothing↗
PubMed1981

[Blood supply control in pedicled skin flaps with transcutaneous PO2 measurement].

The method of transcutaneous PO2 measurement is suitable to record the differing oxygen supply, and thereby the blood supply of direct skin flaps. The increasing blood supply in the base as well as in the peripheral part of the flap up to the tenth postoperative day is characterized by increasing PO2 values. In clinical use the method is suitable for controlling of pedicle flaps, particularly with regard to the determination of the optimal time for division of the pedicle. In axial pattern flaps the production of ischemia by regular occlusion of the pedicle seems to accelerate vascularization from the bed of the transplant.

Amputation, Traumatic↗
PubMed1980

[Very small ganglia as the cause of wrist pain].

In 10 patients with severe pain localised over the dorsal aspect of the lunate, the capsule of the wrist joint was exposed and fenestrated over the scapho-lunate ligament. In two cases flat ganglion cysts were found, too small to be palpated before surgery. In the other 8 cases without macroscopically visible changes, histologically, areas of mucoid degeneration and very small ganglion cysts could be seen in the capsule. All patients were pain free after surgery. It is concluded that very small intracapsular cysts in the area of the dorsal scapho-lunate ligament, the most common origin of ganglia, may irritate the posterior interosseus nerve which is located in this area.

Adult↗
PubMed1979

[Surgery of the hand--a medical duty (author's transl)].

The considerable technical progress in surgery of the hand, especially in the field of microsurgery which made replantation of detached fingers possible, may give the impression that hand surgery is primarily a technical discipline. It is intended to show that besides the technique, surgery of the hand includes many other important factors such as assessing the natural facts and taking into account the biological possibilities. But especially important is concern for the patient. This doctor-patient relationship in hand surgery is decisive for the result.

Adult↗
PubMed1979

[Arguments for suturing of a gap in the flexor tendons of fingers].

1. Tendon healing may originate from the vascularized epitenon of the tendon stumps. 2. This is dependent upon the gap between the tendon stumps being rather small. 3. In tendon sutures after Kessler the gap averaged only 2.5 mm, whereas the average after Bunnell suture was 6.7 mm and after Lengemann suture, 9.8 mm. 4. After isolated division of the deep flexor tendon (80% of cases) and division of both flexor tendons (65%), good results with a distance = 2.5 cm between the nail and the distal palmar crease could be obtained.

Age Factors↗
PubMed1979

[Direct flexor tendon suture in the digital sheath].

From 1976 to 1976 in 44 fingers (41 patients) flexor tendons within the digital sheath (zone I and II) were repaired by direct suture. A modification of KESSLER's "grasping" suture was employed. In 21 fingers only the deep flexor and in 23 fingers both flexor tendons were divided; in these cases a repair of both tendons was carried out whenever possible. In cases of delayed repair, however, secondary changes of the gliding apparatus often prevented a repair of the superficialis tendon. Tenolysis was proposed in one half of the cases. It was done not earlier than 3 months after tendon suture. After division of both flexor tendons we obtained in cases with good preoperative conditions (21 fingers) 66% of good and excellent results, according to BOYES' classification, and 75% according to BUCK-GRAMCKO's classification.

Adolescent↗
PubMed1979

[An unusual cause of carpal tunnel syndrome].

One year after rupture of the 5th flexor profundus tendon, a 45-year-old man showed signs of carpal tunnel syndrome. At surgery the proximal stump of the 5th flexor profundus tendon was found in the carpal tunnel. Due to an anomalous origin of the 4th lumbrical muscle from the profundus tendon of the 4th finger the proximal stump of the 5th flexor profundus tendon had withdrawn far proximally and in this way produced a carpal tunnel syndrome.

Carpal Tunnel Syndrome↗
PubMed1977

Anatomical variations of the median nerve in the carpal tunnel.

In 246 hands in which the carpal tunnel was explored at operation, 29 variations in the course of the median nerve were found. Accessory branches at the distal portion of the tunnel were found in 18 hands, a high division of the median nerve in seven, and accessory branches proximal to the tunnel in four. Based upon these findings and including published reports of others, the variations were classified into four groups: I-variation in the course of the thenar branch; II-accessory branches at the distal portion of the carpal tunnel; III-high divisions of the median nerve; and IV-accessory branches proximal to the carpal canal. The thenar branch variations in 100 cadaver hands (Poisel) were extraligamentous in 46 percent, subligamentous in 31 percent, and transligamentous in 23 percent. The findings emphasize the importance of approaching the median nerve from the ulnar side when opening the carpal tunnel.

Carpal Tunnel Syndrome↗