תוצאת חיפוש

Lymphoma of the Knee Joint Simulating Patellar Fracture

E. Lebel, M. Itzchaki

Orthopedics Dept., Shaare Zedek Medical Center, Jerusalem

Fracture of the patella is not uncommon after direct anterior knee trauma. However, there are other medical situations that resemble it radiologicaly. We present a patient mistakenly diagnosed as having a patellar fracture who had primary, solitary, malignant B-cell lymphoma of the knee space eroding the lower pole of the patella. We have found no reports of such a lesion in the literature. Another commbenign condition that might erode adjacent bone is chronic synovitis. Our patient was treated withchemo- and radiotherapy and the lesion fully regressed with no evidence of local or systemic recurrence 1.5 years after diagnosis.
 

Methotrexate Treatment in Refractory Juvenile Rheumatoid Arthritis

R. Brik

Pediatrics B Dept., Rambam Medical Center, Haifa

The mean time from initiation of methotrexate (MTX) treatment of juvenile rheumatoid arthritis (JRA) to partial remission of clinical symptoms and total clinical remission was assessed. 9 girls and 8 boys, from 3 to 18 years of age (mean 11.4±5.4) with active JRA by American College of Rheumatology (ACR) criteria (5 systemic, 8 polyarticular and 4 pauciarticular disease onset), who failed to respond to adequate courses of non-steroidal anti-inflammatory drugs (NSAID), steroids or disease-modidrugs were studied.

Clinic visits were scheduled at monthly intervals for physical and laboratory assessment disease activity and drug safety. Partial response to MTX was defined a 25% reduction of the active joint count and/or articular severity score. Total clinical remission was defined as in adult rheumatoid arthritis. The duration of disease activity until enrollment ranged from 6 months to 14 years (4.5±3.7 yr); duration of therapy was 3 months to 3 years (14.6±9.3mo) and dosage ranged from 5 to 15 mg/m²/week. Prednisone in doses below 10 mg/day and NSAID were permitted.

14 of 17 patients (82%) had a 25% reduction in joint activity after 6 weeks to 4 months (9.2±3.2 weeks); 10 (59%) went into full clinical remission after 5 to 26 months (14.3±9 months); 3 relapsed after an initial response to treatment, and 4 (23%) did not respond to MTX. The non-responders were males who required higher doses of prednisone (p<0.0001).

MTX appears to be effective therapy for children with JRA. An initial response can be expected in most patients after 9 weeks of treatment, and full clinical remission occurs after a mean of 14 months.

Vacuum Phenomenon in the Hip Joint: Diagnostic Value

S. Iordache, E. Rath, D. Atar, A. Vindzberg

Orthopedics Dept., Soroka Medical Center, Beer Sheba

Vacuum phenomenon is well known in degenerative spinal disease in the elderly, but is seldom seen in other joints, especially in children. The phenomenon does not represent a pathological finding, and can be used for imaging of the articular facets, mainly in the hip and knee joints. We report a patient with this phenomenon in the hip joint.

Conversion Total Hip Replaceafter Failed Internal Fixation of Intertrochantric Fracture

M. Kligman, M. Roffman

Dept. of Orthopedic Surgery, Carmel Medical Center, Haifa

Between 1933-1995, 16 patients underwent conversion-total hip replacement after internal fixation of an intertrochanteric fracture failed. Clinical results were unsatisfactory compared to primary total hip replacement. There was a high incidence of intra- and postoperative complications, including femoral fracture, wound infection, and aseptic loosening. This study should increase the surgeon's awareness of the difficulties encountered in conversion of failed intertrochanteric fractures to total hip replacement.

Chemical Synovectomy in Arthritis by Intra-Articular Injection of Osmic Acid

D. Markovits, M. Rozenbaum, I. Rosner, E. Rottenstriech

Dept. of Medicine A, Carmel Hospital; Rheumatology Unit, Bnai Zion Hospital; and Zevulun Medical Clinic, Haifa

18 patients suffering from persistent synovitis despite medical therapy were treated with an intra-articular injection of osmic acid. After 1 year of follow-up, 68% had good results and there were no complications nor detectable radiographic evidence of disease progression. Because osmic acid is almost as effective as surgical synovectomy and is cheap and easy to administer, it can be recommended as the first choice for treatment of corticosteroid-resistant arthritis in the early stages of the disease.

Orthopedic Ward Policy in Introduction of New Types of Total Hip Implants

U. Givon, M.I. Siebzhener, M. Salai, A. Chechick, H. Horoszowski, J. Shemer

Orthopedic Staff, Medical Technology Unit, Medical Dept. F, and Gertner Institute for Study of Health Services, Chaim Sheba Medical Center, Tel Hashomer

The use of different types of total hip implants in medical centers in Israel was surveyed. Questionnaires were sent to all orthopedic ward directors in Israel requesting information on the number of total hip arthroplasties performed between the years 1984-1993, the types of implants used, and whether attending physicians or residents perform the operations. 22 of 24 orthopedic wards responded but 1 ward was excluded because only the results for 1993 were reported. 5 wards reported more and 16 fewer than 50 operations a year. 15 different types of implants were in use in Israel in that period, and in 5 wards 5 or more types of implants were used. Only 1 of the wards performed more than 50 operations a year. We conclude that the indiscriminate use of multiple technologies in wards performing few operations can lead to the long "learning curves" previously associated with poor results. Orthopedic surgeons should resist the impulse to introduce new implants, thus improving results and lowering expenditure. The need for regulating the introduction of new implants is emphasized.

Femoral Fracture following Total Hip Replacement

M. Kligman, M. Roffman

Dept. of Orthopedic Surgery, Carmel Medical Center, Haifa

Between January 1990 and May 1996 we performed 500 total hip replacements, 6 of which were complicated by ipsilateral femoral fracture. Treatment was either by skeletal traction or by internal fixation, with or without revision-total hip replacement. Results of surgical treatment were superior to those of conservative treatment. This study supports use of Mennen plate-fixation. Further studies are necessary for final evaluation of the efficacy of this method.

Recurrent Late Hemarthrosis after Total Knee Replacement

David Hendel, Gad J. Velan

Dept. of Orthopedics, Rabin Medical Center, Golda Campus, Petah Tikva

A patient who had a successful total knee replacement for severe degenerative osteoarthritis of the right knee had an excellent functional result. 2 years after the operation there was spontaneous intra-articular bleeding that was treated successfully conservatively. Recurrent hemarthrosis 2 months later was treated similarly and also resolved without residual functional impairment after a follow-up of over 1 year. Recurrent late hemarthrosis in the knee is a fairly rare complication following total knee arthroplasty, but is amenable to conservative measures. Frequently, persistent recurrent hemarthrosis requires debridement of the bleeding synovium of the knee.