Page 95 - Clinical Manual of Small Animal Endosurgery

Operative Arthroscopy 83

the biceps tendon does not necessarily indicate primary disease of this
structure. A blunt probe is useful to assess the integrity of the tendon
and to assist visual inspection of the back of the tendon that is not readily
visible. The probe is inserted through an instrument portal created just
proximal and medial to the greater tuberosity (Fig. 3.12). A torn or
diseased biceps tendon is transected close to its origin on the supragle-
noid tuberosity. A sharp instrument (no. 11 scalpel blade, banana knife
or meniscal knife) is inserted through the soft tissues of the instrument
portal following the same direction as used for the blunt probe. The
sharp instrument is used under direct arthroscopic guidance, transecting
the tendon once the blade is in view. The tendon may also be sectioned
using radiofrequency surgery (Fig. 3.14) where the equipment is avail-
able. Complete transection is confirmed when the free end of the tendon
falls away into the biceps sheath upon elbow extension with shoulder
flexion. Clinical reports suggest that it is not necessary to tenodese the
biceps tendon.

(a)

(b)

Fig. 3.14 (a) Bipolar radiofrequency unit with probe. (b) Detailed view of
radiofrequency probe tips.