Journal of Rehabilitation Sciences & Research

Assessment of Knee Angular Deformities: Correlation between Photogrammetric, Clinical and Radiographic Methods

Nasim Rashedi; Bina Eftekharsadat; Neda Dolatkhah; Jafar Soleymanpour; Yaghoub Salekzamani; Soraya Babaie

Articles in Press, Accepted Manuscript, Available Online from 20 May 2024

Abstract

Background: Photogrammetry is a safe and non-invasive technique for evaluating posture in clinical settings. Body vision is a novel system that employs photogrammetric principles ... Read More Background: Photogrammetry is a safe and non-invasive technique for evaluating posture in clinical settings. Body vision is a novel system that employs photogrammetric principles to assess postural parameters. This study aimed to determine the relationship between clinical, photogrammetric, and radiologic techniques in knee angular deformity detection.Methods: This cross-sectional study was performed on 53 volunteers of both genders, with a total of 106 lower limbs with complaints of knee pain or knee deformity. Sampling was conducted in a non-random and accessible manner considering the inclusion and exclusion criteria. Moreover, all of the participants had previously full-length lower limb radiographs. The clinical evaluation was conducted through the measurement of the anatomical axis, Q angle, and intermalleolar and intercondylar distances. The aforementioned parameters were evaluated using the Body Vision photogrammetric system while the patient was in a standing position. Finally, the analysis was performed using angles and distances obtained from these methods.Results: The evaluations indicated a strong correlation between the photogrammetric and radiological methods regarding the anatomical axis of the lower limb (r=0.939, p<0.001). Moreover, a high correlation was obtained between the clinical and photogrammetric methods to the intermalleolar distance (r=0.948, p<0.001) and intercondylar distance (r=0.927, p<0.001). Regarding the Q angle, a high but relatively lower correlation was detected between the clinical and photogrammetric methods compared to the previous cases (r=0.834, p<0.001). However, a moderate correlation has been detected from the clinical measurement of the anatomical axis with photogrammetric and radiological methods (r= 0.70, r= 0.62 respectively).Conclusions: As a result of this study, a strong correlation was demonstrated between the photogrammetric technique and the gold standard method, indicating that photogrammetry can be used as an alternative method for evaluating knee angular deviations.

View Article

The Effect of a Neuromuscular Training Program on Landing Kinematics in Young Soccer Players with Poor Landing Mechanics

Nezam Nemati; Ali Asghar Norasteh; Ali Shamsi Majelan

Volume 10, Issue 3 , September 2023, , Pages 145-150

Abstract

Background: This study aimed to investigate the impact of the Prevent Injury and Enhance Performance (PEP) program on knee valgus and knee flexion angles, as well as Landing Error Scoring ... Read More Background: This study aimed to investigate the impact of the Prevent Injury and Enhance Performance (PEP) program on knee valgus and knee flexion angles, as well as Landing Error Scoring System (LESS) test scores in young male soccer players with poor landing mechanics. The study identified how increased knee valgus, decreased knee flexion and poor landing patterns contribute as risk factors for these young athletes' anterior cruciate ligament (ACL) injuries.Methods: The present study utilized a quasi-experimental design. A total of 47 soccer players with poor landing mechanics were purposefully recruited and randomly assigned to either the intervention group (n=23 players, age= 12.69±0.70 years, height= 1.53±0.06 m, weight= 49.91±6.76 kg) or the control group (n=24 players, age= 12.55±0.64 years, height= 1.51±0.08 m, weight= 51.25±7.73 kg). The study measured Knee Valgus angle, Knee flexion angle, and LESS test scores at the baseline and the end of the 8-week study period. During the study, the intervention group used the Prevent Injury and Enhanced Performance (PEP) program as a warm-up routine, while the control group continued with their regular warm-up routine. The researchers used ANCOVA (Analysis of Covariance) and paired-sample t-test statistical analyses to evaluate the changes.Results: the intervention group significantly reduced knee valgus angle (p=0.001). Additionally, there were significant enhancements in knee flexion angle (p=0.003) and the LESS test scores (p=0.001). In contrast, the control group did not show significant improvements in knee valgus and knee flexion angles (p>0.05), except for LESS test scores (p=0.001), where they also demonstrated improvement. Moreover, the study found significant differences between the intervention and control groups in knee valgus angle (p=0.001), knee flexion angle (p=0.025), and LESS test scores (p=0.001).Conclusion: This study demonstrated that the PEP program effectively reduced dynamic knee valgus angles, increased knee flexion angles, and improved LESS test scores in young male soccer players. Therefore, it appears that this program can reduce the risk of ACL injuries in this population.

The Comparison of Knee Joint Muscles Flexibility between Women with and without Radiographic Knee Osteoarthritis

Hedieh Moallem; Amir Hossein Barati; Elham Shirzad Araghi; Anoshirvan Kazemnejad

Volume 7, Issue 3 , September 2020, , Pages 118-123

Abstract

Background: Approximately 60% of individuals above 50 years of age are aﬀected by knee osteoarthritis (KOA). KOA is most commonly assessed through radiographic evaluation and classified ... Read More

Journal of Rehabilitation Sciences & Research

Articles in Press

Current Issue

Volume 12 (2025)

Volume 11 (2024)

Volume 10 (2023)

Volume 9 (2022)

Volume 8 (2021)

Volume 7 (2020)

Volume 6 (2019)

Volume 5 (2018)

Volume 4 (2017)

Volume 3 (2016)

Volume 2 (2015)

Volume 1 (2014)

Keywords = Knee

Assessment of Knee Angular Deformities: Correlation between Photogrammetric, Clinical and Radiographic Methods

Abstract

The Effect of a Neuromuscular Training Program on Landing Kinematics in Young Soccer Players with Poor Landing Mechanics

Abstract

The Comparison of Knee Joint Muscles Flexibility between Women with and without Radiographic Knee Osteoarthritis

Abstract