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P Reize

Publications and source records attributed to P Reize.

10 recordsLinked to original sources
PubMed2006

K-wire transfixation or distraction following the Keller-Brandes arthroplasty in Hallux rigidus and Hallux valgus?

A total of 118 feet with Hallux valgus and Hallux rigidus treated by the Keller-Brandes method were re-examined clinically and radiologically after 9.1 years (range: 1.7-24.3). Correction of the Hallux valgus angle was obtained from an average of 40 degrees to 23 degrees in the Hallux valgus group. Improvement in the postoperative range of motion was observed when the aftertreatment consisted of Kirschner-wire distraction instead of an axial Kirschner-wire transfixation. The patients who underwent Keller-Brandes surgery for Hallux valgus had less pain when the aftertreatment was carried out using an axial Kirschner wire, while those operated on for Hallux rigidus had less pain when the aftertreatment consisted of distraction. The percentage of satisfied or very satisfied patients with the cosmetic results of the Keller-Brandes arthroplasty was more than 66.7%. Patients with Hallux valgus and postoperative aftertreatment with Kirschner wire transfixation were the most satisfied patients, while patients with Hallux rigidus were very satisfied with the postoperative distraction. Our good results are comparable to those in other studies and confirm the success of the Keller-Brandes resection arthroplasty in Hallux valgus with osteoarthritis of the first metatarsophalangeal joint in older patients whose demand for movement is less, and in Hallux rigidus in less active older patients.

Arthralgia↗
PubMed2006

[Pigmented villonodular synovitis].

Pigmented villonodular synovitis (PVNS) is a rare, strongly proliferative disease of the lining of thejoint, synovial bursa and tendon (synovial) sheath. If left untreated, it leads to severe destruction of the joint resulting in an early need for endoprosthetic replacement. The clinical signs are unspecific. Using the diagnostic gold standard MRI, the complete extent of PVNS can usually be determined non-invasively. Once histological confirmation has been obtained, radical tumor resection, synovectomy, possibly curettage, and postoperative irradiation must be applied.

Arthroplasty, Replacement, Knee↗
PubMed2003

[Postsurgical computed tomography of uncemented hip arthroplasty].

PURPOSE: Presentation of the value of postsurgical computed tomography (CT) to diagnose loosening of uncemented femoral stems. MATERIALS AND METHODS: Incremental CT and spiral CT were performed on six femora with implanted uncemented stems after the entire femora were embedded in polymethylmethacrylate. The femora were subsequently sectioned (thickness 1 mm, separation 8 mm) and the medial and lateral contact areas of the prosthetic stem compared with the CT data. RESULTS: The CT showed a contact of femoral stem and cortical bone between 0.4 mm (3.4 %) and 4.8 mm (47.1 %) and the section specimens between 0.9 mm (8.7 %) and 3.4 mm (36.7 %). No correlation was found between the results (r = 0.61), since the individual differences were up to 24 % in almost all sections. CONCLUSIONS: Neither single-slice nor two-slice CT is capable of demonstrating the direct bone-endoprosthesis contact. Multidetector row CT (MDCT) is conceivably more accurate to measure the cortical contact of the femoral stem.

Arthroplasty, Replacement, Hip↗
PubMed1996

The Wagner revision stem in alloarthroplasty of the hip.

Forty-one Wagner revision stems were implanted at the Orthopedic Department of the University of Tübingen between July 1990 and January 1993. We report the results of 37 patients at an average follow-up of 27 months (13-48 months) postoperatively. The main indication was stem loosening with considerable loss of bone. In addition, we used the implant 4 times in primary arthroplasty. At follow-up examination 33 patients (89%) were satisfied with the postoperative outcome. According to the Merle D'Aubigné score (12-point scale), 32 patients showed a poor functional result of less than 6 points preoperatively. Postoperatively, the results of 36 patients could be classified as very good to good. To categorise the radiological destruction of the implant bed, we used the femoral shaft defect classification of the DGOT (Deutsche Gesellschaft für Orthopädie und Traumatologie) in conjunction with the classification of Pak and Paproski [5, 11]. Twenty patients presented with trochanteric and calcar defects, and 11 patients with a combination of a calcar and shaft defect. We found a circular shaft defect in 2 patients. In 7 cases we assessed the bone remodelling postoperatively as very good, with strong newly formed bone structures, and in 25 cases as good, with remodelling of the old stem bed and bony structuring of the osteolyses. A secondary sinking in of the Wagner stem was seen in 7 cases. Only one stem had to be revised because of pain symptoms and loosening; in all other cases a secondary stabilisation of the revision-stem took place. With the Wagner revision stem, there is the possibility of achieving mechanical stability even in situations with massive bone loss. The evacuation of bone cement and granulation tissues is facilitated by the transfemoral approach, bony remodelling is accelerated, and bone grafting is often not necessary. As our short-term results show, the concept is a promising one. Nevertheless, we will be very careful in following these patients in the long term, as we have noticed stem sinkage in a small percentage of cases.

Adult↗
PubMedDate not supplied

[Clinical and radiological results of individual hip stems of the type Adaptiva(R) without cement].

AIM: Long-term anchorage of foreign material in vital bone has proven to be the main problem in hip arthroplasty. Bone cement, a material for filling and fitting, allows an excellent solution for older people. Many failures have been blamed on the use of polymethylmethacrylate in younger patients. In our opinion, modelling a stem to the individual anatomic needs of younger patients and to implant it without cement but with a stable press-fit is a good way to transmit stress harmoniously from the prosthesis to the bone and to obtain a long-lasting function. This individual hip stem is now available in the third generation under the name Adaptiva(R). We would like to present our first results. METHOD: Between October 1993 and September 1995 150 individual hip prosthesis of the Adaptiva(R) type have been implanted. In the average the patients were 53,2 years old. The average time of follow-up was 19.9 (12 to 44) months. RESULTS: The Merle d'Aubigné score showed excellent absolute and relative results for pain, mobility and ability to walk. No aseptic loosening of the stem occurred. CONCLUSION: Our early results are promising, but we have to wait for the long-term results, which are part of a current study.

Adult↗
PubMedDate not supplied

[Quantification and visualization of the influence of pelvic tilt upon measurement of acetabular inclination and anteversion].

AIM: The indication of acetabular inclination and anteversion not only depends on definition but also on a correctly aligned patient. Determination of anteversion and inclination according to Sven-Johannsson and Visser were simulated with 3D calculations. The influence of pelvic tilt in relation to the frontal plane was evaluated and visualized. METHOD: With 3D calculations of planar X-ray photographs for artificial hip cups the normal vector of the acetabular cup was used to calculate anteversion and inclination. RESULTS: The main axis of the projected acetabular rim is equally suited to determine the cup orientation as the normal vector of the cup plane. Pelvic tilt of about 10 degrees causes measuring errors of about 8 degrees when measured with conventionally used techniques. CONCLUSION: For the correct determination of cup orientation pelvic tilt in relation to the frontal plane has to be accounted for.

Acetabulum↗
PubMedDate not supplied

[Postoperative autologous transfusion from blood drainage after total hip joint arthroplasty--how much value is really there?].

AIM: Are autologous blood transfusions sufficient or do we need the transfusion of unwashed or washed wound drainage blood in total hip arthroplasty? METHOD: 253 patients undergoing total hip arthroplasty were retrospectively randomized to autologous blood transfusion or transfusion of unwashed wound drainage. We compared the haemoglobin and haematocrit levels as well as the rate of complications. RESULTS: Postoperative blood salvage and reinfusion after total hip joint arthroplasty didn't show any advantages. In 10 % we saw complications after transfusion of unwashed wound drainage. CONCLUSION: We do not recommend the transfusion of wound drainage.

Arthroplasty, Replacement, Hip↗
PubMedDate not supplied

[Prediction of the location of the centre of rotation of the hip joint external landmarks].

AIM: The object of this study was to develop a new method to predict the location of the centre of rotation of the hip joint reasonably accurately. METHOD: We collected the coordinates of palpable bony landmarks in 50 patients, 25 males and 25 females, using CT scans to predict the physiological location of the centre of the hip joint centre. RESULTS: The centre of the hip was located, on average, at 12% (+/- 2.9) of the inter-ASIS (anterior superior iliac spine) distance medial, 33% (+/- 3.9) distal and 19% (+/- 2.7) posterior to the anterior superior iliac spine (ASIS). CONCLUSION: Knowledge of the physiological centre of rotation of the hip may be useful in navigation of the cup in total hip arthroplasty.

Adult↗
PubMedDate not supplied

[Proteus syndrome: a case report].

The Proteus-syndrome is a recently described congenital hamartomatosis consisting of numerous clinical features of great variety. Mainly affected are the musculo-skeletal system, primarily by hemihypertrophy, macrodactyly and exostoses, and the skin and the subcutaneous tissue, primarily by pigmented naevi and subcutaneous tumors. The differential diagnosis includes other malformation syndromes, e. g. Klippel-Trenaunay-Weber syndrome and other hamartomatosis. Surgical intervention and treatment is difficult because of a frequency of complications and recurrences. This article describes clinical manifestations of Proteus syndrome, differential diagnosis and therapeutic strategies.

Child↗