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KEY POINTS OF REHABILITATION OF THE ANTERIOR CRUCIATE LIGAMENT

203

translating the body on operated leg. During

the dynamic phase of the walking, the weight

of the body is partial, with quadriceps

contraction locking the knee in extension in

phase of support, alternating with quadriceps

slackness and flexion of the knee in swing

phase.

Getting a normal walking pattern, without

flexum, without limping, without pain, with an

actively locked knee in full extension during

propulsion in the support phase, is an absolute

necessity to remove permanently the crutches.

KEY POINT N° 4:

WAKENING

THE HAMSTRINGS, THEN

STRENGTHENING, THEM EVEN IN

THE LAST DEGREES OF FLEXION

The inhibition of medial hamstrings is almost

constant during grafts of ACL by semi-

tendinosus and gracilis. It is clearly noticed on

a patient laying in procubitus, knees bending

between 100 to 120 degrees, asking him to

resist to one traction toward extension, made

by examiner (fig. 3).

This position is also a position of exercises

where the therapist can visualy control the

presence of semi-tendinosus and gracilis

muscles in maximal flexion of the knee (120°).

The awekening with Swiss-ball in decubitus

dorsal position also allows to make them work,

and later, to strengthen them, associating

different types of contractions (static,

concentric, eccentric) in the same range of

motion (fig. 4a, 4b).

Strengthening the hamstrings, usually well-

made in the first 100 degrees of flexion, is often

negleted beyond this range of motion, knowing

that weakness and a delay of pre-activation of

this muscular group is a well-know recurrence

factor.

Fig. 4a:

Relaxing slowly the pressure of the heel

corresponds to an eccenteric work of hamstrings.

Fig. 3:

Work of the hamstringts in eccentric.

Fig. 4b:

Pulling down the hell corresponds to a

concentric contraction of the hamstrings.