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Knee strengthening exercises after ACL reconstruction

Comparison of two knee strengthening protocols after ACL reconstruction: a cluster randomized controlled trial

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12617000406303
Enrollment
32
Registered
2017-03-20
Start date
2017-04-03
Completion date
2018-04-02
Last updated
2017-04-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

We have previously demonstrated that knee flexion deficits after ACL reconstruction remain when tested in a functional position with the hip in neutral even after several months and extensive rehabilitation. This may be due to the position of the hip (90 degrees of flexion) that is typically used for knee flexion strengthening exercises. We hypothesize that strengthening withe the hip in a more functional position (neutral) will result in lower strength deficits and better outcomes

Interventions

Rehabilitation protocol with knee strengthening exercises performed with the hip in neutral position (see attached protocol on the ANZCTR website). The intervention will be delivered on an individual basis, face to face at a physical therapy clinic by licensed physical therapists. The treatment will last for 6 months, starting 2 weeks after surgery with sessions for 3 times per week for the first 2 postoperative months, reduced to twice per week for the next 2 months and reduced to once a week

Rehabilitation protocol with knee strengthening exercises performed with the hip in neutral position (see attached protocol on the ANZCTR website). The intervention will be delivered on an individual basis, face to face at a physical therapy clinic by licensed physical therapists. The treatment will last for 6 months, starting 2 weeks after surgery with sessions for 3 times per week for the first 2 postoperative months, reduced to twice per week for the next 2 months and reduced to once a week for the final two months. The attendance to the prescribed sessions will be documented by the clinic. Each session will last 30-60 minutes depending on the rehabilitation phase. As described in detail in the protocol, the treatment involves manual therapy techniques, range of motion exercises, strengthening exercises, proprioceptive exercises, and sports-specific activities,

Sponsors

Evangelos Pappas
Lead SponsorIndividual

Study design

Allocation
Randomised controlled trial
Intervention model
Other
Primary purpose
Treatment
Masking
Blinded (masking used) (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
18 Years to 50 Years
Healthy volunteers
No

Inclusion criteria

ACL reconstruction with quadruple hamstrings graft

Exclusion criteria

a previous injury or operation to either knee, simultaneous fracture, concurrent ligamentous injury, evidence of osteoarthritis on radiograph, or articular cartilage lesions that required treatment. Patients with meniscal tears that were repaired were excluded, whereas those with tears that required no treatment or were treated with partial meniscectomy were included.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026