U radu su promatrane danas dvije najčešće korištene
tehnike rekonstrukcije koje za transplantat koriste
polutetivasti ili vitki mišić (m. gracillis i m.
semitendinosus) ili središnju trećinu patelarne tetive. Cilj
istraživanja bio je utvrditi postoje li kvalitativne
neuromuskularne promjene i odstupanja od zdravog
obrasca pokreta izražene u površinskom elektromiografskom
signalu te u kojoj se mjeri one razlikuju
ovisno o korištenoj operativnoj tehnici jednu godine
nakon rekonstrukcijeACL-a. Ispitanici su bili raspoređeni
u tri homogene skupine. Prvu eksperimentalnu skupinu
(n=5) činili su ozlijeđeni sportaši nogometaši koji su bili
tretirani tehnikom rekonstrukcije ACL-a patelarnim
transplantatom (PAT). Drugu eksperimentalnu skupinu
(n=5) činili su ozlijeđeni sportaši nogometaši koji su bili
tretirani tehnikom rekonstrukcije ACL-a tetivnim
transplantatom mišića gracillisa i semitendinosusa (STG).
Treću, kontrolnu skupinu činili su potpuno zdravi
nogometaši (MODEL). Prag mišićne aktivacije određen
je kao 30% maksimalne amplitude srednje anvelope
elektromiografskog signala pojedinog mišića u
kontrolnoj skupini.
Rezultati godinu dana nakon rekonstrukcije
pokazuju statistički značajno kraće vrijeme aktivnosti
mišića vastus lateralis u fazi leta grupe PAT(.0249, p=.05 i
.005051, p=.05, uz primjenu Bonferroni korekcije) u
odnosu na Model, kasniji kraj aktivnosti mišića vastus
medialis grupe STG u fazi odraza (.0179, p=.05 i .005051,
p=.05, uz primjenu Bonferroni korekcije) u odnosu na
Model te kraće vrijeme aktivnosti mišića vastus lateralis u
prvoj fazi doskoka grupe PAT (.0132, p=.05 i .015873,
p=.05, uz primjenu Bonferroni korekcije) u odnosu na
grupu STG. Rezultati pokazuju neuromuskularne
promjene kod eksperimentalnih skupina nakon
rekonstrukcija i potpune rehabilitacije. Na temelju
rezultata ovog istraživanja nismo u mogućnost ustvrditi
koja je od prezentiranih tehnika rekonstrukcije ACL-a
primjerenija.This study aimed at comparing two most commonly
used ACL reconstruction techniques in Croatia. Subjects
were chosen amongst patients who were all active soccer
players operated on by the same physician and
rehabilitated in the same clinic, by the same therapist.
They were divided into two groups according to ACL
reconstruction technique used: PAT group (n = 5) was
treated byACL reconstruction using patellar tendon graft
and STG group (n = 5) was treated byACLreconstruction
technique using gracillis and semitendinosus tendon graft.
Control group (MODEL) comprised of completely
healthy active soccer players. One year after the
reconstruction our subjects performed one legged vertical
jump using their injured leg and surface electromyographic
signals of muscles rectus femoris, vastus
lateralis, vastus medialis and biceps femoris were
recorded.Vertical jump cycle was divided into five phases
based on vertical force platform measurements. Muscle
activity threshold was defined at 30% of maximum
amplitude of mean envelope of individual muscles in
MODEL group and several variables describing muscle
activity were defined. Nonparametric statistical methods
(KruskalWallis test and consecutive Mann Whitney tests
with Bonferroni correction) showed some statistically
significant differences: shorter activity period of the
muscle vastus lateralis in the flight phase for the PAT
group (.0249, p=.05 and .005051, p=.05, with Bonferroni
correction), delayed end of vastus medialis muscle
activity in the take off phase for the STG group (.0179,
p=.05 and .005051, p=.05, with Bonferroni correction)
when compared to MODEL group and longer activity of
the muscle vastus lateralis in the STG group (.0132, p=.05
and .015873, p=.05, with Bonferroni correction) with
respect to the PATgroup in the landing1 phase.
Based on this we are unable to conclude which of
these two surgery techniques should be preferred
