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PubMedDate not supplied

Unicompartment total knee replacement: a 2--4 year review.

Unicompartment total knee replacement is a controversial operation. Conflicting reports indicate that there is unacceptable wear associated with loosening. To investigate the problem, 21 patients were examined 2--4 years after the operation. Eighty-one per cent of the patients were free of pain. None of the remaining patients had disabling pain. All patients demonstrated 90 degrees or greater range of motion with 91% of the patients' preoperative deformity completely corrected. There was a 19% evidence of X-ray loosening of the component which was consistently associated with the clinical symptoms of mild pain. Unicompartment total knee replacement is an acceptable alternative to high tibial osteotomy and relieves pain as well as corrects deformity.

Aged↗
PubMed1980

[Radiographic findings of joint prostheses in the hand and wrist (author's transl)].

The radiographic diagnosis of normal and abnormal findings following total joint replacement of joints at the wrist, fingers and carpal bones is presented and discussed. Knowledge of the surgically wanted and/or achieved position of the implanted material and its relation to the neighboring bone is essential for proper radiologic evaluation of possible complications, such as infection, loosening, luxation or subluxation and fracture.

Finger Joint↗
PubMedDate not supplied

Is there a lower incidence of deep venous thrombosis after joint replacement in rheumatoid arthritis?

Patients with rheumatoid arthritis (RA) and osteoarthritis (OA) were compared for the incidence of deep venous thrombosis (DVT) after total hip replacement (THR). RA patients after total knee replacement (TKR) were also compared for the incidence of DVT. The relative risk of OA patients developing DVT after THR was 2.3 times that of RA patients. In RA patients after TKR, the chance of DVT was 4.8 times greater than after THR, implying that added stress in knee surgery can overcome the inherent protection RA patients may have. Although salicylates may be protective, firm conclusions regarding the effect of drugs, including corticosteroids on the development of DVT could not be made.

Arthritis, Rheumatoid↗
PubMedDate not supplied

Bilateral total hip and knee replacement in adults with rheumatoid arthritis: an evaluation of function.

Sixteen patients with advanced rheumatoid arthritis who underwent total joint replacements of both hips and both knees were followed for an average of 22.8 months postoperatively. Their functional status before and after surgery was assessed by use of a special rating system for function. Fourteen of the 16 patients demonstrated higher total function scores at follow-up. Improvement was most marked in walking endurance, need for walking aids, and ability to climb stairs. Factors which were believed to predispose to less functional improvement included older age at initial surgery, longer duration of disease, more severe upper extremity involvement, and more frequent medical illnesses. There were 8 patients in whom combined hip and knee flexion in one or both lower extremities did not exceed 190 degrees after surgery. When this deficiency was combined with severe involvement of the upper extremities, difficulty with activities such as climbing stairs and arising from a chair was more common. Therefore, the goal of surgical treatment is to provide combined hip and knee flexion in excess of 190 degrees in these patients. Total joint arthroplasty has increased the likelihood of functional improvement in patients with severe rheumatoid arthritis involving the hips and knees, and encouraged the surgeon to operate earlier in the course of the disease as well as on patients with severely deformed joints.

Adult↗