Since its first description in 1984, periacetabular osteotomy (PAO) has become an accepted treatment for hip dysplasia. The 30-year survivorship with this procedure not been reported. Because these patients are often very young at the time of surgery, long-term followup and identification factors associated poor outcome could help to improve patient selection.Looking initial group dysplasia undergoing PAO originator's institution, we asked: (1) What is cumulative survival rate free from...

Variations in femoral and acetabular version are becoming increasingly recognized as contributing factors to the development of hip pain patients with femoroacetabular impingement (FAI) dysplasia. It is still unknown what true prevalence these rotational abnormalities this patient population.To determine (1) symptomatic hips FAI dysplasia, (2) combined patients, (3) which specific morphologies associated version.Cross-sectional study; Level evidence, 3.A total 462 (538 hips) were included...

Abstract Background Correct quantification of femoral torsion is crucial to diagnose torsional deformities, make an indication for surgical treatment, or plan the amount correction. However, no clear evaluation different measurement methods hips with excessive has been performed date. Questions/purposes (1) How does CT-based differ among five commonly used methods? (2) Do differences in increase torsion? (3) What reliability and reproducibility each Methods Between March August 2016, we saw...

Background: It remains unclear whether decreased femoral version (FV) causes anterior intra- or extra-articular femoroacetabular impingement (FAI). Therefore, we evaluated symptomatic hips with FV, and without cam pincer FAI, by using computed tomography (CT)–based virtual 3-dimensional (3D) simulation compared this group patients normal FV asymptomatic hips. Purpose: To investigate (1) the osseous range of motion, (2) acetabular zones, (3) hip is extra- intra-articular in FAI. Study Design:...

The modified Dunn procedure has the potential to restore anatomy in hips with slipped capital femoral epiphyses (SCFE) while protecting blood supply head and minimizing secondary impingement deformities. However, there is controversy about risks associated mid- long-term data on clinical outcomes, reoperations, complications are sparse.

Background: Femoroacetabular impingement (FAI) is a complex 3-dimensional (3D) hip abnormality that can cause pain and osteoarthritis in young active patients of childbearing age. Imaging static based on 2-dimensional radiographs or computed tomography (CT) scans. Recently, CT-based 3D simulation was introduced for patient-specific assessments deformities, whereas magnetic resonance imaging (MRI) offers radiation-free alternative surgical planning before arthroscopic surgery. Purpose: To (1)...

The modified Dunn procedure has the potential to restore anatomy in hips with severe slipped capital femoral epiphyses (SCFE). However, there is a risk of developing avascular necrosis head (AVN). In this paper, we report on clinical outcome, radiological AVN rate and complications, cumulative survivorship at long-term follow-up patients undergoing for SCFE.We performed retrospective analysis involving 46 treated SCFE (slip angle > 60°) between 1999 2016. At nine-year-follow-up, 40 were...

Based on previous investigations the vascular blood supply to femoral head, a technique for anatomical reduction after slipped capital epiphysis was developed. This is modification of original by Dunn using retinacular soft-tissue flap. allows visual control epiphyseal supply. We report experience at inventor's institution with critical discussion available literature.Using trochanteric osteotomy surgical dislocation hip, soft tissue flap created containing deep branch medial circumflex...

Abstract Background The time-consuming and user-dependent postprocessing of biochemical cartilage MRI has limited the use delayed gadolinium-enhanced (dGEMRIC). An automated analysis three-dimensional (3-D) images could deliver a more time-efficient objective evaluation composition, provide comprehensive information about thickness, surface area, volume compared with manual two-dimensional (2-D) analysis. Questions/purposes (1) How does 3-D thickness dGEMRIC index using both new method...

Posterior extra-articular hip impingement has been described for valgus hips with increased femoral version (FV). These patients can present clinically lack of external rotation (ER) and extension a positive posterior test. But we do not know the effect combination deformities, location in early flexion is unknown.To evaluate patient-specific 3-dimensional computed tomography (3D CT) scans FV control differences range motion, prevalence osseous intra- impingement.Case series; Level evidence,...

Posterior femoroacetabular impingement (FAI) is poorly understood. Patients with increased femoral anteversion (FV) exhibit posterior hip pain.

Background Femoral version deformities have recently been identified as a major contributor to femoroacetabular impingement (FAI). An in-depth understanding of the specific labral damage patterns caused by femoral may help understand underlying pathomorphologies in symptomatic patients and select appropriate surgical treatment. Questions/purposes We asked: (1) Is there correlation between mean cross-sectional area acetabular labrum? (2) difference location lesions labrum hips with increased...

The objective was to use convolutional neural networks (CNNs) for automatic segmentation of hip cartilage and labrum based on 3D MRI. In this retrospective single-center study, CNNs with a U-Net architecture were used develop fully automated model from Direct MR arthrographies (01/2020-10/2021) selected 100 symptomatic patients. Institutional routine protocol included T1 mapping sequence, which manual labrum. 80 hips training the remaining 20 testing. Model performance assessed six...

Abnormal femoral torsion (FT) is increasingly recognized as an additional cause for femoroacetabular impingement (FAI). It unknown if in-toeing of the foot a specific diagnostic sign increased FT in patients with symptomatic FAI. The aims this study were to determine: 1) prevalence and accuracy detect FT; 2) progression angle (FPA) tibial (TT) are different among abnormal 3) FPA correlates FT.A retrospective, institutional review board (IRB)-approved, controlled 85 (148 hips) FAI or hip...

Background: Diagnosis and surgical treatment of hips with different types pincer femoroacetabular impingement (FAI), such as protrusio acetabuli acetabular retroversion, remain controversial because actual 3-dimensional (3D) coverage location cannot be studied via standard 2-dimensional imaging. It remains unclear whether exhibit intra- or extra-articular FAI. Purpose: (1) To determine the 3D femoral head in these subgroups FAI, (2) impingement-free range motion (ROM) through use osseous...

Arthroscopic treatment of symptomatic femoroacetabular impingement (FAI) has promising short-term to mid-term results. In addition treating acute pain or impaired function, the goal hip-preserving surgery is achieve a lasting improvement hip function and prevent development osteoarthritis. Long-term results are necessary evaluate effectiveness surgical further improve by identifying factors associated with conversion THA.(1) How do Merle d'Aubigné-Postel scores change from before follow-up...

Background: There is controversy whether nonoperative or operative treatment for Achilles tendon rupture superior. It unknown if patients with acute return to previous sports activity. The purpose of this study was assess 5-year sport and subjective satisfaction, minimum 1-year functional outcomes, complications in following early weightbearing rehabilitation. Methods: An institutional review board–approved, retrospective observational involving 89 performed. Out 114 consecutive patients,...

IntroductionBoth Hip Dysplasia(DDH) and Femoro-acetabular-Impingement(FAI) are complex three-dimensional hip pathologies causing pain osteoarthritis in young patients. 3D-MRI-based models were used for radiation-free computer-assisted surgical planning. Automatic segmentation of MRI-based 3D-models preferred because manual is time-consuming.To investigate(1) the difference and(2) correlation femoral head coverage(FHC) between automatic MR-based CT-based (3) feasibility preoperative planning...

Frequencies of combined abnormalities femoral version (FV) and acetabular (AV) the McKibbin index are unknown. To investigate prevalence FV AV in symptomatic patients with femoroacetabular impingement (FAI), a retrospective, Institutional Review Board (IRB)-approved study 333 (384 hips) that were presented hip pain FAI was performed. The computed tomography/magnetic resonance imaging based measurement central AV, cranial compared among five subgroups distinguished underwent preservation...