[Imaging of non-traumatic spinal diseases in children].

Pain is also the main symptom of spinal diseases in children. The younger the child, the more frequently organic causes are to be found, whereas in adolescents functional dorsalgia and lumbalgia are ubiquitous. Apart from the neonatal period, where ultrasound is used as the primary method for investigation of closed spinal dysraphia, radiography is still considered to be the first choice examination, which nevertheless should only be carried out after a thorough anamnesis and clinical examination.

Minimally invasive retroperitoneal approach for lumbar corpectomy and reconstruction. Technical note.

Anterior decompressive surgery with spinal fusion is considered an effective treatment for thoracolumbar fractures and tumors. However, it is also known to be associated with considerable surgical approach-related trauma. The purpose of this study was to show that lumbar corpectomy and spinal reconstruction can be performed via a minimally invasive retroperitoneal (MIR) approach and therefore, the surgical approach-related trauma can be reduced.

Magnetic resonance imaging evaluation of posterior lumbar interbody fusion.

Study Design: A prospective study investigated the use of magnetic resonance imaging (MRI) scanning in the assessment of posterior lumbar interbody fusion (PLIF) using carbon fiber cages.

Objective: The aim of the study was to determine whether MRI scans in the coronal plane allow proper evaluation of interbody fusion through carbon cages.

Summary Of Background Data: Currently, there is no universally accepted radiologic assessment tool for evaluating fusion status after PLIF.

Cemented titanium stems show high migration: transprosthetic drainage system has no advantage over third-generation cementation technique.

Introduction: A newly developed cemented titanium stem with excellent laboratory results using a transprosthetic drainage system (TDS) was clinically tried for the first time. Prognostic radiographic methods including migration measurement and clinical investigation were performed for up to 7 years.

Materials And Methods: Twenty-two patients prospectively and consecutively received total hip replacement using a cemented titanium stem and a threaded Zweymüller cup.

Noncontiguous spinal metastases and plasmocytomas should be operated on through a single posterior midline approach, and circumferential decompression should be performed with individualized reconstruction.

Background: In noncontiguous spinal metastatic disease, anterior or combined anterior-posterior surgery is an effective treatment. The objective of this study is to investigate whether circumferential decompression through a single-stage posterior midline approach with individualized spinal reconstruction can still achieve comparable results for functional improvement and for maintenance of spinal alignment in the absence of the risks associated with the more invasive transcavitary or combined approaches.

Method: Seventeen patients with noncontiguous spinal metastases and plasmocytomas at one or two adjacent levels were included in this series.

Minimally invasive retroperitoneal approach for lumbar corpectomy and anterior reconstruction. Technical note.

The anterior decompressive procedure in which spinal fusion is performed is considered an effective treatment for thoracolumbar fractures and tumors. However, it is also known to be associated with considerable surgery-related trauma. The purpose of this study was to show that lumbar corpectomy and anterior reconstruction can be performed via a minimally invasive retroperitoneal approach (MIRA) and therefore the surgical approach-related trauma can be reduced.

MRI of unfused lumbar segments after spondylodesis.

Purpose: Our goal was to find a causal relation between disk degeneration in nonfused lumbar segments, back pain, and the angle of scoliotic curves 21-30 years after dorsal spondylodesis.

Method: Thirty-two patients with scoliosis had been treated by dorsal spondylodesis 21-30 years prior to this study (mean 25.2 +/- 2.

[Paget's coxarthrosis. Implantation of a modular tumor reconstruction system. Case report].

A male patient aged 69 years suffering from Paget-coxarthrosis with a large distension of the proximal femur was implanted a cementless tumor reconstruction system. The surgical procedure consisted of opening of the femoral shaft with a special drill, insertion of the prosthesis and its anchorage within the healthy distal bone. By this method we were able to save the femoral muscle insertion planes.

[Cement-free Zweymüller hip system. Results of a 5-year follow-up study].

85 patients with 96 cementless pressfit hip implants were followed over a period of at least 5 years postoperatively. Average Harris score was 87.5 points.

Bone reaction to uncemented threaded polyethylene acetabular components.

One hundred and eighty-one cementless total hip arthroplasties with threaded polyethylene acetabular components, carried out between 1980 and 1981, have been reviewed retrospectively. Discrepancy between the complaints of the patients with loose components and destruction of acetabular bone led to the development of a four stage radiological grading system which would enable loosening to be anticipated in routine cases. There was a high percentage of loosening (33%) in our series and direct bone-polyethylene contact gave rise to severe granulomatous reactions around the implants.

Midterm experience with the cementless Zweymueller system. Results of a minimum five-year follow-up study.

Eighty-five patients with 96 cementless press-fit hip implants were followed over a period of at least 5 years postoperatively. The average Harris score was 87.5 points.

Indomethacin for prevention of ectopic ossification in cementless hip arthroplasties. A prospective 1-year study of 100 cases.

In a prospective series of 100 patients we investigated the effect of indomethacin for 6 weeks in the prophylaxis of ectopic bone formation in hip replacements with cementless fixation. Indomethacin prophylaxis reduced (P < 0.0001) ectopic bone formation compared to a retrospective control group of equal size.

[The lateral profile of the lumbar vertebrae following lumbosacral spondylodesis--comparison between Harrington rods and a transpedicular fixation system (Zielke's USIS method)].

We compared the lateral profile of the lumbar spine after lumbosacral dorsal fusion in two groups of each 32 patients with comparable age, sex distribution and indication; one group had been fused with the use of two short Harrington rods, the other with the Universal Spinal Instrumentation System (USIS) according to Zielke/Harms. The sparing of motion segments using a transpedicular system is demonstrated by the average number of 1.7 fused motion segments compared to 2.

[Sugioka's trans-trochanteric osteotomy. Results of interventions 1975-1983].

The long-term results of 46 Sugioka osteotomies are presented: In 22 patients no joint replacement had yet been necessary, and 17 hip joints had already been replaced by total hip prostheses. Of the 22 preserved joints, 12 were graded as clinically excellent and good, 10 as fair or poor. The radiological course showed worsening osteoarthritic changes in almost all cases.

Duration of first remission as an indicator of long-term survival in chronic myelogenous leukaemia.

Approximately 31 patients with chronic myelogenous leukaemia (CML) are documented in the literature who survived more than 10 years after diagnosis. We present a CML-patient whose survival of 27 years is probably the longest reported so far. The analysis of the course of disease in these patients revealed that the duration of unmaintained first remission after chemotherapy is of high prognostic significance.

[Radiologic measurement of the behavior of lumbar intervertebral disks in idiopathic scoliosis based on so-called "bending" images].

Total disc mobility, segmental mobility, both depending upon location of the disc and upon its position within the scoliotic curve as well as the opening angle of the disc in the ap x-ray were measured in the so-called "bending-test" x-rays of the lumbar curve of 40 patients with idiopathic scoliosis. The measurements showed a maximum of mobility in the segments L2/3, L3/4 and L4/5. In no direct dependence an increased mobility of the most proximal motion segment against the next lower one of the lumbar curve was found.

A special technique of compound osteosynthesis of the distal humerus. A case report about extramedullary blast crisis in chronic myelogenous leukemia.

In a rare case of chronic myelogenous leukemia, extramedullary myeloblast crisis occurred in the distal humerus after 27 years. The pathological fracture was stabilized with double-plate compound osteosynthesis. The small distal fragment was stabilized without restriction of the range of movement of the elbow joint.

Heterotopic ossification with total hip endoprostheses in various models of thrombosis prophylaxis.

The influence of thrombosis prophylaxis on the occurrence of heterotopic ossification after implantation of total hip endoprostheses was analyzed in a series of randomized studies. When low-dose heparin or dextran 40 was administered, the rate of ossification was comparatively high (30.1% and 65.

[Treatment strategy of malignant bone tumors of the spine].

In patients with big, tumorous changes in the vertebral bodies, conservative measures like radiotherapy, medical therapy, and external support measures are often no longer applicable. As a result of the instability of the spinal column, most of the patients are bedridden and in great pain. Signs of root compression occur frequently, as do incipient or incomplete transverse lesions.

[Experiences with ventral stabilization in vertebral metastases in the area of the thoracic and lumbar spine].

43 cases of tumor resection followed by ventral stabilisation are reported in 42 patients with metastases in the spine. Indications for surgery were beginning or incomplete transversal lesion of the spinal cord, bedrest for at least 3 weeks, unsusceible pain caused by instability, or unsuccessful conservative and radiotherapeutic treatment. 46.

The transtrochanteric anterior rotational osteotomy of Sugioka. Early and late results in idiopathic aseptic femoral head necrosis.

The early and late results of 39 transtrochanteric anterior rotational osteotomies of Sugioka, performed since 1975 in idiopathic aseptic necroses of the femoral head, are presented; 23 results are excellent and good. The rates of postoperative complications and reoperations are high, more than 40% each. Reoperations in smaller necrotic areas are far less frequent.

[Periarticular ossifications following implantation of cement-free total hip endoprostheses of the Zweymüller-Endler type].

Ectopic ossifications after 158 cementless implanted Total hip endoprostheses Type Zweymüller-Endler have been examined postoperatively within 12 months at the earliest. The rate of ossification was 39.9%.