Mahmoud Jabalameli , Abolfazl Bagheri Fard , Ali Jahansouz , Tahmineh Mokhtari ,
Volume 71, Issue 11 (2-2014)
Abstract
Background: Genu valgum deformity is exaggerated valgus alignment of lower extremity mechanical axis in knee with a joint line that slopes superolaterally and is corrected by distal femoral osteotomy. In this study the results of treatment and satisfaction in patients with genu valgum were evaluated according to knee society score (KSS) and changes in pre-operation and post-operation lower extremity mechanical axis were compared to each other.
Methods: The present study is a cross-sectional study that was performed on 27 patients (30 knees) who have had distal femoral varus osteotomies between 2005 to 2011. Patient’s data were collected from hospital documents, pre-operation and post-operation alignment views and physical exams of operated patients. Radiographs were from the lower extremities and including three joints of hip, knee and ankle (alignment view). Mechanical axis of femur and tibia were drown and they were compared to each other. For measuring patient satisfaction, KSS score was used. All data was collected and evaluated by SPSS 16 software.
Results: In this study, 30 knees (in 27 patients) by mean of 30.7±3.36 months follow- up, (range, 5-76 months) were evaluated. The mean of ages in patients was 19.66±4.35, (range 10-34 years). Ten cases (37%) of valgus were on the right side and 14 cases (52%) on the left side and three (11%) cases were reported on both sides. Based on Student’s t-test, there was a significant difference in post- operation lower extremity mechanical axis. The mean of KSS score was 82.52 and the score was defined as 60.7% excellent, 25.1% good, 7.1% fair, and 7.1% poor in patients. According to the results of study, in five patients were non-::::union:::: and re-operated.
Conclusion: Distal femoral varus osteotomy is a reliable procedure in knees with valgus correction. This procedure with precise selection of patients, have acceptable end results.
Parvin Taghavinejad, Mohammad Ghasem Hanafi , Ahmad Fakhrizadeh ,
Volume 82, Issue 8 (11-2024)
Abstract
Background: This cross-sectional study aims to evaluate the association between patellofemoral joint alignment measurements and patellofemoral cartilage defects using MRI images.
Methods: A retrospective and cross-sectional study was conducted on 530 knee MRI images from Golestan and Imam Khomeini hospitals in Ahvaz, Khuzestan, Iran. The images were obtained from individuals experiencing non-traumatic knee pain and were selected based on their age, with subjects over 30 years of age being included in the study. This survey was conducted over the period from March 2023 to March 2024. The parameters of femoral groove angle (SA), femoral groove depth (SD), lateral patellofemoral angle (LPFA), tibial-trochlear tubercle groove distance (TT-TG), lateral patellar displacement (LPD), patellar inclination angle, and patellar height were evaluated. In addition, the Caton-Deschamps index and the degree of focal cartilage defect (from 0 to III) in the knee joint were evaluated.
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Results: Regarding body mass index, 15.7% of the patients studied were underweight, 42.3% were of normal weight, 31.1% were overweight, 10.4% were obese, and 0.6% were extremely obese. There was a significant relationship between body mass index and patellar-lateral articular cartilage defects in the lateral tibia and lateral femur. There was a significant relationship between age and patellar-lateral articular cartilage defects in the lateral femur. There was a significant relationship between lateral patellar articular cartilage defects and lateral patellar dislocation, lateral patellofemoral angle, tibial prominence-skeletal groove distance, and patellar inclination angle. In addition, there was a significant relationship between medial patellar articular cartilage defects and knee groove angle.
Conclusion: Patellofemoral misalignment is multivariately associated with knee articular cartilage defect. The results of this study will be of use to medical professionals, and the early diagnosis of knee osteoarthritis can prevent the development of the condition. It is recommended that similar studies and surveys be conducted in other provinces of Iran so that the statistical population is highly vulnerable.
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