PubMed Health⌕ Search

Biomedical subjects

J Taras

Publications and source records attributed to J Taras.

5 recordsLinked to original sources
PubMed2000

Trapeziometacarpal arthroplasty using the entire flexor carpi radialis tendon.

Fifty-eight patients (62 joints) with arthritis of the thumb carpometacarpal joint were treated with resection arthroplasty, ligament reconstruction, and tendon interposition with the entire flexor carpi radialis tendon. The mean age of the patients at the time of surgery was 58.4 years (range, 28-80 years), and the average followup was 42.5 months (range, 21-86 months). The entire flexor carpi radialis tendon was used for reconstruction and interposition. In 32 of the 62 joints, a partial trapezoidectomy was performed for scaphotrapezoidal arthritis. Finger-tip pinch improved by 88%, key pinch improved by 86%, and grip strength improved by 69%. Palmar and radial abduction also improved by 8% and 10%, respectively. Fifty-five (95%) patients reported excellent pain relief, whereas three patients reported only mild pain. No patients experienced an increase in pain. All thumbs were stable radiographically. This study indicated ligament reconstruction with tendon interposition, accompanied by partial trapezoidectomy when indicated, provides excellent pain relief and restoration of function. No morbidity was observed with use of the entire flexor carpi radialis tendon.

Adult↗
PubMed1997

Carpal tunnel syndrome: are the MR findings a result of population selection bias?

OBJECTIVE: Previous descriptions of MR imaging of carpal tunnel syndrome used limited study populations and volunteers as controls. We reevaluated these descriptions to determine their sensitivity and specificity when applied to a large consecutive clinical series in which the incidence of carpal tunnel syndrome was small. SUBJECTS AND METHODS: In 196 consecutive wrists for which supplemental axial conventional spin-echo T1-weighted and fast spin-echo T2-weighted images were obtained at 1.5 T with a dedicated wrist coil, 165 studies were available for review. Previously described signs of carpal tunnel syndrome such as proximally increased size, flattening of the median nerve, increased median nerve signal intensity, flexor tenosynovitis, retinacular bowing, decreased deep tendon fat, and deep palmar bursitis were retrospectively and independently evaluated by two observers who were unaware of patient diagnosis. RESULTS: None of the previously described signs was sensitive for the diagnosis of carpal tunnel syndrome. However, specificity was high for retinacular bowing (94%), median nerve flattening (97%), and deep palmar bursitis (95%). CONCLUSION: Most previously described MR imaging signs of carpal tunnel syndrome are insensitive and nonspecific. Exceptions include retinacular bowing, median nerve flattening, and deep palmar bursitis, which in our study proved to have specificities greater than or equal to 94%.

Adult↗
PubMed1993

Niebauer trapeziometacarpal arthroplasty: a long-term follow-up.

A retrospective review of long-term follow-up of Niebauer trapeziometacarpal arthroplasty for treatment of disabling arthritis of the basal joint was performed. Thirty implants in 27 patients were reviewed, with an average follow-up of 9 years (minimum, 4 years). All surgical procedures were performed by the senior author. Eighty-eight percent of the patients were subjectively pleased and would undergo the procedure again. Postoperative subluxation occurred in 83% of the patients. This was not painful unless the prosthesis dislocated. Subluxation increased with time. One case of silicone synovitis necessitated implant removal; however, this was also after removal of a previous Eaton prosthesis. In the light of our results, we believe that the Niebauer trapeziometacarpal arthroplasty is a worthwhile procedure with a rare incidence of particulate synovitis. In 24 of 27 patients, pain was relieved and satisfactory motion and stability were achieved.

Arthritis, Rheumatoid↗