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Biomedical subjects

J Geldmacher

Publications and source records attributed to J Geldmacher.

At least 19 recordsLinked to original sources

[Hand injury in polytrauma. A retrospective study of 782 cases].

The incidence of hand injuries in multiple trauma is not well investigated. Between 1980 and 1986, 782 multiple trauma patients received primary treatment at the University Hospital of Erlangen. At the time of the study, 22% (n = 173) of these patients had died. 93% of the patients met with a traffic accident. In 20% of the multiple trauma patients, additional hand injuries were seen. 75% of these injuries were closed fractures of hand and wrist. The severity of multiple trauma had no influence on the incidence of hand injury. Young people between twenty and fourty years of age were mostly affected in multiple trauma, with increased incidence of hand injuries especially after motorcycle accidents. Delay of diagnosis of hand injuries was rare.

Adult↗

[Lack of effectiveness of alternative non-surgical treatment procedures of Dupuytren contracture].

In the early stage of the disease a group of patients was treated with radiotherapy, later another group with injections of superoxid-dismutase. The results of follow-up examinations 7 years after radiotherapy and 3 years after treatment with superoxid-dismutase respectively do not differ clearly from spontaneous course of Dupuytren's contracture grade one. At present we cannot recommend an alternative treatment for early stage Dupuytren's contracture.

Adult↗

[Filling up small bone defects with bone ceramics (hydroxylapatite)].

First clinical results using a bovine hydroxyapatite implant to fill up small bony defects after excision of enchondromas or cysts are reported in twelve patients. Incorporation without any problems was completed radiologically after six to eight weeks. Complications did not occur. Avoiding additional surgery harvesting cancellous bone chips at the iliac crest, the use of these bovine hydroxyapatite ceramic seems to be reasonable.

Adult↗

[Plaster filling in surgical treatment of enchondroma--a justified therapeutic procedure?].

Enchondroma are the most frequent tumors of the hand. These benign tumours are characterized by slow growth, the lack of clinical symptoms and by accidental discovery. The surgical treatment of enchondroma includes resection of the tumor tissue from the bone matrix, and subsequent filling of the defect with autologous or homologous spongiosa or with sterile plaster of Paris. We showed in a period from 1982 to 1989 that there is no difference with respect to the clinical outcome between our patients receiving autologous spongiosa (n = 25) or plaster filling (n = 35). Owing to its simplicity and lack of additional surgery at the iliac crest, we prefer the method of plaster filling. Animal studies performed by our group have demonstrated that implanted plaster is transformed to spongiosa within four to ten weeks without adverse effects.

Animals↗

[A new method of transosseous pull-out wire fixation in ligamentous injuries of the metacarpophalangeal joint of the thumb].

Surgical repair is usually indicated for rupture of the ulnar collateral ligament of the MP-joint of the thumb. The pull-out wire technique is commonly used for repair of typically distal ligamentous ruptures or avulsion fractures at the base of the proximal phalanx. The method's disadvantages include skin or soft tissue necrosis beneath the button on the radial side of the thumb. When postoperative swelling subsides, the formerly taught wire loosens and so does the repair. Because of this inherent danger, a special steel sleeve which is drawn over the wire on the radial side of the thumb until bone contact is made was developed. Thus, a strong and unyielding fixation of the ulnar collateral ligament repair or avulsed bone chip is certain. The follow-up for 41 patients treated by this technical modification is presented; there were no complications, including wound infections.

Bone Wires↗

[Fresh extensor tendon injuries of the forearm and hand (management, results and problems)].

1944 patients with 2418 lacerations of extensor tendons in the hand were treated since 1966. Follow up study was possible in 1031 (53%) patients. The discussion about the best method to evaluate the results of treatment lead to a better scheme for critical examination. The preoperative status was taken into consideration as well as the subjective meaning and brought into harmony with the objective results.

Finger Injuries↗

[Saw injury of the hand--an accident with grave sequelae].

Besides bruises saw injuries of the hand are the most common severe hand injuries. A total of 294 of 400 patients who had a saw injury between 1982 and 1986 were monitored in the course of a followup examination spanning the time of the accident up to re-entry into professional life. Causes of accidents as well as injury patterns, surgical treatment and aftereffects were analysed. The high number of injuries (70.8%) sustained while not working was remarkable as well as the fact that despite the seriousness of the injury 64.6% of the patients were content with the cosmetic results of treatment and 65% satisfied with the recovered function of the injured hand.

Accidents, Occupational↗

[The etiology of ulnar nerve compression syndrome].

A retrospective investigation of the etiology of 132 patients with peripheral ulnar nerve compression was performed. Mainly there was external long-term pressure or compressive lesions near the nerve and disturbances of the osseous structures at the elbow and the wrist.

Female↗

[Rupture of the palmar plate--conservative or surgical therapy].

Disruptions of the palmar plate are frequently overlooked injuries. As the palmar plate stabilises the PIP joint in combination with the collateral ligaments untreated injuries may result in severe complaints. Detailed anatomical and functional knowledge is therefore necessary to diagnose the degree of injury. In addition to ligamentous disruption osseous chips may occur and can be divided into four degrees (Hintringer 1987). By the study of results of 178 cases specific treatment has been established. Surgical intervention is indicated in the presence of an unstable PIP joint, subluxation or osseous chips grade 3 and 4 (Hintringer). The aim should be a painfree and stable joint. Small limitations in movement can be tolerated.

Adult↗

[Therapy of enchondroma with a plaster implant--renaissance of a treatment principle].

The treatment of tuberculous osteitis, osteomyelitis or bone tumors by filling the cavity with plaster of Paris implants after complete removal of the focus or tumor tissue by curettage is a method, nearly 100 years old, practised successfully again and again but little noted. Finally Richter et al. gave an account of 25 cases of tuberculous osteitis, osteomyelitis and bone tumors treated by this method. We have practised this method since 1984 in the treatment of enchondroma. Careful scraping-out with a sharp curette, milling the sclerosed wall and rinsing the cavity with dehydrated alcohol is followed by immediate reconstruction, filling the cavity with a gamma-ray-sterilized CaSO4-paste mixed with the local antibiotic Nebacetin siccum. As observed by other authors, this implant clearly stimulates osteogenesis. It is not necessary to take spongiosa fragments out of the iliac crest and we need no general anaesthesia. There were no complications and no tumor recurrences thus far.

Bone Neoplasms↗

[Significance of the preoperative status in the evaluation of results of the reconstruction of extensor tendons].

Since 1977, a new evaluation scheme that is simple to use and which provides more objective information than earlier plans has been employed for the assessment of the results of extensor tendon reconstruction. The results in the four groups were evaluated and given a prognosis in accordance with the newly developed scheme. This permitted not only a better differentiation of the value of the therapeutic procedures, but also allowed one to make prognostic predictions. The prognosis is also of particular importance during preoperative talks with the patient.

Finger Injuries↗

[Results of the microsurgical reconstruction of peripheral nerves using a functional anatomical follow-up procedure].

Between 1969 and 1980 in a total of 557 patients 623 severed peripheral nerves were reconstructed by microsurgical technique. In 31,1% of the cases primary reconstruction was performed, in 18,6% secondary reconstruction and in 50,3% a free nerve transplantation. For evaluation we used a functional anatomic technique. The best results occurred after direct suturing without tension. In children results were much better than in adults. In free nerve transplantation results depended on length of nerve gap.

Adult↗

[Primary pyogenic infections of the hand and their treatment].

314 of 814 patients with pyogenic infections of the hand were treated conservatively. In 500 cases surgical treatment was necessary. Bacteriological findings, the value of antibiotic treatment and the necessary surgical procedures are discussed.

Anti-Bacterial Agents↗

[Fibromuscular dysplastic aneurysm of the palm and microsurgical therapy].

Until now fibromuscular dysplasia has only been described in centrally located arteries. We found this disease in the arteries of the palm. Because of the progressive course and the increasing pain the disease had to be treated surgically. After the necessary resection of the fibromuscular dysplastic aneurysm the vessel system of the palm can only be reconstructed by microsurgical interposition of a vein graft.

Adult↗

[Problems in the evaluation of results following reconstruction of peripheral nerves from the viewpoint of the clinician and the patient].

Between 1969 and 1977 in a total of 395 patients severed peripheral nerves were reconstructed by microsurgical technique. In 30% of cases primary repair was carried out, in 22% secondary reconstruction, and in 48% a free transplantation. The least favorable results occurred after secondary reconstruction of sensory nerves; the best after direct suturing without tension. Comprehensive consideration of the results is not helpful in terms of prognosis. Statistics for special groups have to be established taking into consideration the preoperative findings, the situation of the patient, and the type of postoperative treatment.

Adolescent↗