Abstract
Evaluation of knee joint stability after ACL reconstruction with an ST/GR graft using an Aircast Rolimeter
- Department of Physiotherapy, Collegium Medicum, University of Information Technology and Management, Rzeszow, Poland Head of the Department: Dr. Marlena Krawczyk-Suszek
- Institute of Health Sciences, Medical College, University of Rzeszow, Rzeszow, Poland Head of the Institute: Lidia Perenc MD, PhD, Prof. UR
- Institute of Health Sciences, Collegium Medicum, Jan Kochanowski University, Kielce, Poland Head of the Institute: Beata Kręcisz MD, PhD, Prof. JKU
- Department of Orthopaedics and Traumatology, Clinic of Orthopaedics and Traumatology, Central Clinical Hospital of the Ministry of Internal Affairs, Warsaw, Poland Head of the Department: Prof. Ireneusz Kotela MD, PhD
- Faculty of Medicine, Collegium Medicum, Cardinal Stefan Wyszyński University, Warsaw, Poland Head of the Faculty: Adam Kobayashi MD, PhD, Prof. UKSW
Introduction
ACL damage results in instability of the knee joint. It is characterized by abnormal hypermobility leading to repeated injuries of the joint.
Aim of the research
To evaluate the function of the knee joint in relation to mechanical stability and to evaluate the parameters influencing the stability of the knee joint in the period of 3 to 5 years after surgery.
Material and methods
The study enrolled 51 patients, 38 men and 13 women, operated on due to ACL rupture. The knee joint stability was assessed with a Rolimeter and the Lysholm scale, and the isokinetic muscle strength was measured with a Biodex 4 dynamometer. The study was carried out in the period from 3 to 5 years after the operation.
Results
The difference between the Rolimeter measurement of the uninvolved knee and operated one was no more than 3 mm in most of the respondents (84.3%). Joint instability over 3 mm was observed in 15.7% of the respondents. The strength of the extensor muscles of the knee joint was significantly higher in the uninvolved limbs compared to the operated ones.
Conclusions
After ACL reconstruction, some patients have instability in the operated joint. Assessment of the function and instability of the knee joint using the subjective Lysholm scale is comparable to the assessment performed with the objective research tool - the Rolimeter. Patients after arthroscopic ACL reconstruction develop chronic muscle strength disorders.
>Keywords
instability, ACL reconstruction, Rolimeter
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