Muscle strength and function before and after anterior cruciate ligament reconstruction using semitendonosus and gracilis


Autoria(s): Keays, SL; Bullock-Saxton, J; Keays, AC; Newcombe, P; Bullock, M. I.
Contribuinte(s)

Richard S Laskin

John H Newman

Data(s)

01/01/2001

Resumo

This study assessed the quadriceps and hamstring strength before and 6 months after anterior cruciate ligament (ACL) reconstructive surgery using the hamstrings and related the findings to functional performance. Six months after surgery is a critical time for assessment as this is when players are returning to sport. Maximum isokinetic strength of 31 patients with complete unilateral ACL ruptures was measured at speeds of 60 degrees and 120 degrees per second. Functional assessment included the single hop, the triple hop, the shuttle run, side-step and carioca tests. All patients underwent a controlled quadriceps emphasized home-based physiotherapy program both before and after surgery. Results show that before surgery there was a 7.3% quadriceps strength deficit at 60 degrees per second compared to the uninjured leg but no hamstring strength deficit. After surgery there was a statistically significant but relatively small loss of muscle strength. The quadriceps strength deficit had increased to 12% and there was a 10% hamstring deficit. Post-operatively there was an 11% and 6.3% improvement in the hop tests, a 9% (P < 0.01) improvement in the shuttle run, a 15% (P < 0.001) improvement in the side step and a 24% (P < 0.001) improvement in the carioca tests (P < 0.001) despite the loss of muscle strength. (C) 2001 Elsevier Science B.V. All rights reserved.

Identificador

http://espace.library.uq.edu.au/view/UQ:60736

Idioma(s)

eng

Publicador

Elsevier Science

Palavras-Chave #Orthopedics #Sport Sciences #Surgery #Anterior Cruciate Ligament #Strength #Function #Open Kinetic Chain #Patellar Tendon #Quantitative-evaluation #Long-term #Follow-up #Knee #Semitendinosus #Rehabilitation #Stability #Repair #C1 #321024 Rehabilitation and Therapy - Occupational and Physical #730303 Occupational, speech and physiotherapy
Tipo

Journal Article