I tend to use a taping technique that 'lifts' the musclulo-tendonous and shifts it laterally. This effects the line of pull on the tendon. I have had some success with this taping technique but no in every case.

I do local treatments with frictions to the tendon if its chronic, and I apply ultrasound to the tendon and accupressure to any trigger points .

I have used the Mulligan MWM: lateral glide+ resisted wrist extension or power grip. The theory behind this is that the line of pull in incorrect on the wrist extensor muscled and the MWM corrects this line of pull. It can reduce pain on the resisted muscle action but does not seem to give lasting results.

If ULTT reproduces symptoms I treat the neck/thoracic/shoulder girdle as appropriate.
Does anyone look to upper limb mechanics as a primary treatment of Wikipedia reference-linktennis elbow in every case?