A popliteal cyst with a large osteochondral mass.
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Biomedical subjects
Publications and source records attributed to T R Waugh.
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Primary coccidioidal synovitis of the knee is a rare disorder and controversy exists in the literature over the efficacy of treatment with synovectomy and Amphotericin B therapy. Four cases are presented illustrating features of the natural history, diagnosis, and treatment of the disease.
Although malignant cartilage tumors of the foot and especially of the talus are uncommon, the treating physician must become suspicious when a "simple ankle sprain" is resistant to standard treatment. In such a case, the comparison of serial radiographs may reveal subtle changes and the use of a radioactive bone scan may be of diagnostic value.
In a lateral dislocation that is unreducible by closed methods, one should suspect that the tendon of the tibialis anterior muscle may be preventing reduction because of its interposition. In such a situation an open reduction is mandatory.
A compartmental syndrome can occur in any space limited by fascia or skin. A case of a gluteal compartment syndrome is reported, apparently from prolonged pressure after a drug overdose. Clinical features were a painful expanding gluteal mass with sciatic nerve dysfunction. Fasciotomy of the tensor fascia lata and the overlying fascia of the gluteus maximus resulted in rapid relief of symptoms.
This is a case report of a 21 year old man with a unicameral bone cyst of the scapula. The occurrence here, as in other flat bones, is rare. The unusual location presents a diagnostic problem, but as in other flat bones, the prognosis after treatment by bone grafting is very good.
An evaluation of 0.2% buffered glutaraldehyde fixed tendon as a potential tendon replacement prosthesis was evaluated in rabbit and chicken models. In vivo implantations were done to determine compatability, function, and strength of grafts. Autogenous fresh grafts were used as controls in the strength evaluations. The fixed tendon elicits no cellular rejection response, is invaded and replaced by host tissues, and anastomosis strength in tension compares favorably to a fresh autogenous control. These preliminary evaluations indicate a useful potential for this fixed biomaterial as a tendon prosthesis.
Between March 9, 1972 and December 31, 1973, a total of 103 UCI knee replacements were performed. Follow-up data are available on 83 knees with an average follow-up of 33 months. Patient evaluation of the end results indicates that 78.3 per cent were better, 9.6 per cent unchanged, and 12.1 per cent worse. Patient evaluation of their own knee function averaged 55 per cent preoperatively and 79 per cent postoperatively. Patients were also evaluated on a 100 point Modified Larson Analysis Form. The average preoperative score was 46, and the average postoperative score was 70. There were six (5.8%) biological complications in the 103 knee replacement. Biological complications included infections, wound healing problems and unexplained pain. Mechanical complications were seen in 18 (17.4%) knees, and included knee instability, tibial component loosening or deformation, and patellar problems. Additional surgery was required in 18 (17.4%) knees. Failure of the procedure eventually requiring removal of the prosthesis and fusion or amputation occurred in 4 (3.9%) knees. The intermediate-term results of UCI knee replacement have been clinically satisfactory. We currently recommend consideration of this procedure for patients with disabling arthritis of the knee.
Management of a traumatized elbow or intra-articular fracture with concomitant upper extremity long bone fracture is tedious, especially when early elbow motion is desirable. An adaptation of the lower extremity hinged cast brace to the elbow provides controlled flexion while protecting against varus/valgus stress and translation forces. A cast brace is constructed from readily-available materials, and can be applied in an out-patiet clinic. The functional results obtainable in a variety of upper extremity injuries are excellent, and the patients generally accept the elbow cast brace very well.
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