Unlabelled: To evaluate whether, after total knee arthroplasty, there is any correlation between patellar height and range of motion (ROM) achieved by patients six months after the operation.
Methods: Forty-five patients who underwent total knee arthroplasty were assessed at least 12 months after the operation (total of 54 knees). The maximum and minimum ROM of all the knees was recorded under fluoroscopy, along with patellar height according to the Blackburne and Peel ratio. Two possible correlations were evaluated: patellar height and ROM; and patellar height and ROM variation from before to after the operation.
Results: A correlation was found between patellar height and postoperative ROM (p = 0.04). There was no correlation between patellar height and ROM variation (p = 0.182).
Conclusion: After total knee arthroplasty, the lower the patella is, the worse the ROM is.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4799296 | PMC |
| http://dx.doi.org/10.1016/S2255-4971(15)30253-6 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Patellofemoral mechanics after uniplane open wedge high tibial osteotomy is superior to those after biplane open wedge high tibial osteotomy.
BMC Musculoskelet Disord
January 2025
Department of Orthopedic Surgery, The 3rd Hospital of Hebei Medical University, Hebei, Shijiazhuang, 050051, P.R. China.
Background: It is known that open wedge high tibial osteotomy (OWHTO) may lead to progression of patellofemoral degeneration due to descent of the patellar height. However, the difference in patellofemoral joint (PFJ) loads with normal daily activity between uniplane and biplane osteotomies is unclear. The purpose of this study was to reveal the differences in PFJ biomechanics between uniplane and biplane OWHTO using finite element analysis (FEA).
View Article and Find Full Text PDFPatella height ratios diagnose the same healthy knees differently.
Sci Rep
January 2025
University of Turin, CTO Hospital (C.T.O. Centro Traumatologico Ortopedico), Via Gianfranco Zuretti, 29, Torino, 10126, TO, Italy.
Article Synopsis
- The study evaluates whether the Insall-Salvati and Caton-Deschamps ratios align with normal distribution patterns in healthy knees, using data from 434 CT-scanned knees.
- Results showed that while the Insall-Salvati ratio identified the 98th centile correctly for patella alta, it overdiagnosed patella baja, while the Caton-Deschamps index also revealed discrepancies in diagnosing patella baja at the 5th centile.
- Overall, the study found poor inter-rater reliability between the two ratios, as indicated by a kappa coefficient of 0.01.
Morphological Improvement of the Epiphyseal Plate and Trochlea After Surgical Correction in Skeletally Immature Patients With Patellar Dislocation and Trochlear Dysplasia.
Am J Sports Med
January 2025
Department of Orthopaedic Surgery, Hebei Medical University Third Hospital, Shijiazhuang, China.
Background: Studies have revealed abnormalities of the epiphyseal plate of the distal femur in patients with trochlear dysplasia, but it is unclear whether the epiphyseal plate could be remodeled after surgical correction of patellar dislocation.
Purpose: To investigate whether the morphology of the epiphyseal plate and trochlea could be improved after medial patellar retinaculum plasty in skeletally immature patients and to investigate the correlations between the morphology of the epiphyseal plate and trochlear dysplasia as well as clinical outcomes.
Study Design: Cohort study; Level of evidence, 3.
Initial investigation into patellofemoral morphology in hemophilic arthritis patients.
Front Surg
December 2024
Department of Orthopedics, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China.
Background: Hemophilic arthritis (HA) is associated with significant changes in the morphology of mature knee joints due to abnormal growth plate development. Previous studies have established marked distinctions between the femur and tibia of subjects with Haemophilia and those with osteoarthritis (OA). This study explored the morphological characteristics of the patella and patellofemoral joint in subjects with Haemophilia.
View Article and Find Full Text PDFPredictors and Early Treatment of Knee Arthrofibrosis After Arthroscopic Knee Ligament Reconstruction Surgery in Adolescent Patients.
Orthop J Sports Med
December 2024
Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
Background: Postoperative knee arthrofibrosis after arthroscopic ligament reconstruction is a serious complication. Among adolescents, risk factors for postoperative arthrofibrosis are not well characterized and the effectiveness of early manipulation under anesthesia (MUA) is not well established.
Purposes: To identify risk factors for arthrofibrosis after arthroscopic knee ligament reconstruction in adolescent patients and to evaluate the safety and effectiveness of early MUA.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!