Background. The aim of the study was to assess the outcomes of surgical treatment of complex knee injuries with a posterior inverted-L approach to the knee joint. Material and methods. The study retrospectively enrolled 13 patients who underwent surgical treatment due to knee injuries with posterior tibial plateau fractures in 2015-2017. Pre-operative planning was based on anteroposterior and lateral X-rays and CT images. The fracture was assessed according to Luo’s three-column classification. Radiographic postoperative assessment was based on lower limb (standing) X-rays and measurements of the MPTA, aPPTA, JLCA, and aFaT angles in the operated and healthy limbs. Clinical assessment was based on the IKDC, KOOS, and Tegner-Lysholm Knee Scoring Scale. Results. Mean follow-up duration was 11.5 months (4-25 months). Anatomical joint surface reduction was achieved in 12 patients and bone union was present in all patients. A posterior inverted-L approach was used in 9 patients and combined approaches in 8 patients. According to the three-column classification, single-column fractures were found in 3 patients, two-column fractures in 4, and three-column fractures in 6 patients. The KOOS was 82%, the IKDC score was 80%, and the Tegner-Lysholm score was 82 points. Radiographic assessments of the operated knee joints showed an MPTA of 88.64 degrees, aPPTA of 79.78 degrees, JLCA of 0.8 degrees, and aFaT of 7.9 degrees. Conclusions. 1. Anatomical reduction and stable fixation of posterior plateau fractures of the proximal tibia are crucial in fracture management. 2. A posterior inverted-L approach is very useful when treating posterior tibial plateau fractures.
Background: Residual hip dysplasia is one of the factors contributing to early hip joint osteoarthritis. The main problems caused by residual dysplasia are pain and instability of the hip joint caused by the lack of sufficient bony covering of the femoral head. The aim of this work was to radiologically assess the configuration change of a dysplastic hip joint after surgical treatment using the Bernese periacetabular osteotomy procedure.Methods: We assessed the radiological parameters of patients with hip dysplasia treated by Bernense periacetabular osteotomy by performing a digital antero-posterior pelvis X-ray: central edge angle and femoral head coverage, medialization, distalization and ilio-ischial angle parameters. For normally distributed parameters, we used Student’s t-test; for parameters without a normal distribution, we used the Wilcoxon signed-rank test. Correlations were assessed according to a normal distribution using the Pearson and Spearman method.Results: For all parameters, we observed statistically significant differences in the measurements of dysplastic hip joints before and after the surgery. We also observed a statistically significant difference between the structure of dysplastic hip joints prior to the surgery and healthy hip joints from the control group based on all radiological parameters. The resulting medialization was 2.68 mm, distalization was 3.65 mm, and the ilio-ischial angle was changed by 2.62°. There was also an improvement in the femoral head bony covering: CEA by 17.61° and FHC by 16.46%.Conclusions: Based on all the radiological parameters, we presented the difference between healthy and dysplastic hip joints. Learning the parameter values that are used to describe dysplastic hip joints will allow us to improve the imaging of the condition and will also allow for better planning and proper qualification of patients for surgical treatment of hip joint dysplasia.Trial registration: Consent of the bioethics commission Medical Centre of Postgraduate Education 83/PB/2015 18.11.2015 Warsaw
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