The Effect Of Anterior Cruciate Ligament And Medial Meniscus Rupture On Knee Extension And Flexion Isokinetic Peak Torque Strength And Cybex Test Protocol: Case Report

Abstract

Knee extensor and flexor muscles are functioning as essential dynamic stabilizers during activity and a possible strength loss in these muscle groups considerably resulted in knee joint stability. According to these findings, it was aimed to examine the effect of the anterior cruciate ligament rupture (ACL) and medial meniscus tear of two female basketball players who injured due to excessive lateral rotation of the knee movement during competition and whether a Cybex protocol could be useful to improve the muscle strength parameters applied to the participants 16 weeks after following an ACL reconstruction surgery. An ACL rehabilitation protocol that enables different contraction patterns was conducted using a Cybex dynamometer (USA), which is an isokinetic measuring device, 3 times/week throughout 8 and 12 weeks based on the examination results of the flexion and extension strengths of the knee joint of participants. Bilateral knee extension-flexion muscle strength deficit of the participant following two months of testing session (Extension Baseline:  26 %, 1st Month: 15%, 2nd month: 5%; Flexion Baseline: 11%, 1st Month: 19 %, 2nd Month: 8 %); and following three months of rehabilitation session were found (Extension Baseline: 40%, 1st Month:34 %, 2nd Month: 24 %, 3rd Month: 14%; Flexion Baseline: 19%, 1st Month: 9%, 2nd Month: 5%, 3rd Month: 3%), respectively. As a result, it can be stated that Cybex protocol, which was started 16 weeks after ACL operations, accelerated the return to sports by decreasing the strength differences between the extremities of athletes.

Keywords

• Meniscus,Anterior Cruciate Ligament,Peak Torque

Ön Çapraz Bağ ve Medial Menisküs Yırtığının Diz Ekstansiyon ve Fleksiyon İzokinetik Pik Tork Kuvvetine Etkisi ve Cybex Test Protokolü Uygulaması: Vaka Takdimi

Öz

Diz ekstansör ve fleksör kasların aktivite esnasında önemli dinamik stabilizörler olmalarının yanı sıra bu kas grubunda kuvvet değerlerinde meydana gelen bir azalma durumunda diz eklemi stabilitesi önemli derecede azalmaktadır. Bu bulgulardan hareketle, bu çalışmada basketbol müsabakasında dizin aşırı lateral rotasyon hareketi yönünde zorlanması sonucu sağ ve sol dizlerinden sakatlanan iki kadın sporcuda ön çapraz bağ (ACL) ve medial menisküs yırtığının diz ekstansiyon ve fleksiyon izokinetik pik tork kuvvet değerleri üzerindeki etkisi ve aynı zamanda ameliyattan 16 hafta sonra kişiye uygulanan düzenli Cybex test protokolünün kas kuvvet değerleri üzerindeki etkisini incelemek amaçlanmıştır. Çalışmada yer alan kadın sporcular diz ekleminin bilateral fleksiyon ve ekstansiyon ön test ölçüm değerlerine göre Cybex izokinetik dinamometre (ABD) kullanılarak 8 hafta ve 12 hafta olmak üzere haftada 3 gün farklı kasılma türlerini içeren bir ACL rehabilitasyon protokolüne tabi tutuldu. Cybex testleri sonucunda iki ay boyunca teste katılan kadın sporcunun sağ ve sol diz ekstansiyon-fleksiyon pik tork kuvvet farkı değerleri (Ekstansiyon Bazal: % 26, 1. ay: % 15, 2. ay: %5; Fleksiyon Bazal: % 11, 1. ay: %19, 2. ay: % 8); üç ay boyunca teste katılan kadın sporcunun sağ ve sol diz ekstansiyon-fleksiyon pik tork kuvvet farkı değerleri (Ekstansiyon Bazal: % 40, 1. ay: % 34, 2. ay: % 24; 3. ay: % 14; Fleksiyon Bazal: % 19, 1. ay: %9, 2. ay: % 5, 3. ay: % 3); olarak bulunmuştur. ACL ameliyatlarından 16 hafta sonra uygulanmaya başlanan Cybex protokolünün sporcuların ekstremiteler arası kuvvet farklarını azaltarak spora dönüş sürecini hızlandırdığı ifade edilebilir.

Anahtar Kelimeler

• Menisküs,Ön Çapraz Bağ,Pik Tork

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