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Prevalence of Quadriceps and Hamstring Strength Deficits among Anterior Cruciate Ligament Reconstruction Patients

Prevalence of Quadriceps and Hamstring Strength Deficits among Anterior Cruciate Ligament Reconstruction Patients: A Retrospective Longitudinal Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ANZCTR
Registry ID
ACTRN12624001444572
Enrollment
104
Registered
2024-12-11
Start date
2024-12-19
Completion date
2025-06-09
Last updated
2025-09-15

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

Conditions

None listed

Brief summary

This study investigates the frequency of quadriceps, hamstring, and physical function deficits among anterior cruciate ligament reconstruction (ACLR) patients at Hospital Canselor Tuanku Muhriz, Malaysia, between 2020 and 2023. A retrospective longitudinal study design will be employed, analysing patient data from medical records at preoperative, 3-, and 6-month follow-up periods. The primary outcome is the prevalence of quadriceps and hamstring strength deficits between the operated and non-operated limbs. Secondary outcomes included the impact of graft types and sociodemographic factors on strength recovery. Statistical analysis will assess the association between strength deficits and demographic, surgical, and rehabilitation factors. Understanding these deficits may help guide the development of targeted rehabilitation strategies to address specific impairments and optimise functional recovery following ACL reconstruction.

Interventions

This study will employ a retrospective, longitudinal design using secondary data. The data will be collected from the medical records of patients who underwent anterior cruciate ligament reconstruction (ACLR) at the Hospital Canselor Tuanku Muhriz (HCTM) over a four-year period from January 2020 to December 2023. The study population will consist of all adult patients over 18 years old who underwent ACLR at the hospital and have documented preoperative and postoperative assessments of knee muscl

This study will employ a retrospective, longitudinal design using secondary data. The data will be collected from the medical records of patients who underwent anterior cruciate ligament reconstruction (ACLR) at the Hospital Canselor Tuanku Muhriz (HCTM) over a four-year period from January 2020 to December 2023. The study population will consist of all adult patients over 18 years old who underwent ACLR at the hospital and have documented preoperative and postoperative assessments of knee muscle strength and physical function at the Orthopaedic ward/clinic and Physiotherapy Unit of HCTM. The primary outcomes of this study are 1) the percentage of quadriceps and hamstring strength between operated and non-operated knees and 2) the functional performance (single-leg hop test). The secondary and exploratory outcomes measure patient-reported outcomes on symptoms, function, and sports activity based on the International Knee Documentation Committee (IKDC) questionnaire score and the level of patient adherence to rehabilitation sessions. All the outcome measures will be obtained from the patient's medical record, as evaluated by the physiotherapist and physician in the HCTM between preoperative, 3-month, and 6-month postoperative ACLR.

Sponsors

Hospital Canselor Tuanku Muhriz UKM
Lead SponsorHospital

Eligibility

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

Inclusion criteria

1) Patients who have completed at least 6 months of follow-up post-ACLR surgery. 2) Patients with complete and accessible medical records, including preoperative, intraoperative, and postoperative data. 3) Patients who have undergone standardized assessments of knee muscle strength, physical function, or related evaluations at specified intervals post-surgery (e.g., pre-operatively, 3 and 6 months).

Exclusion criteria

1) Patients with missing or incomplete data related to key variables of interest in the study. 2) Female patients who were pregnant at the time of follow-up assessments, as pregnancy may affect physical function and muscle strength.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026