scholarly journals Bioabsorbable Pins for Treatment of Osteochondral Fractures of the Knee after Acute Patella Dislocation in Children and Young Adolescents

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
A. Gkiokas ◽  
L. G. Morassi ◽  
S. Kohl ◽  
C. Zampakides ◽  
P. Megremis ◽  
...  
Keyword(s):  
Femoral Condyle ◽  
Patella Dislocation ◽  
Osteochondral Fracture ◽  
Middle Term ◽  
Standardized Protocol ◽  
High Incidence ◽  
Osteochondral Fragment ◽  
Children And Young Adolescents ◽  
Magnetic Resonance Imaging Mri ◽  
Osteochondral Fractures

A retrospective study was performed on the use of bioabsorbable pins in the fixation of osteochondral fractures (OCFs) after traumatic patellar dislocation in children. Eighteen children (13 females, 5 males) aged 11 to 15 years (mean age 13.1 years) with osteochondral fracture (OCF) of the knee joint were treated at the authors’ institution. Followup ranged from 22 months to 5 years. Diagnosis was verified by X-ray and magnetic resonance imaging (MRI) of the knee and patella. In seven patients the osteochondral fragment was detached from the patella and in 11 it was detached from the lateral femoral condyle. All patients were subjected to open reduction and fixation of the lesion with bioabsorbable pins. Postoperatively, the knee was immobilized in a cast and all patients were mobilized applying a standardized protocol. Bone consolidation was successful in 17 of the 18 patients. Bioabsorbable pins reliably fix OCF in children and adolescents, demonstrating a high incidence of consolidation of the detached osteochondral fragment in short- and middle-term followup without requiring further operative procedures.

scholarly journals Arthroscopical Fixation of Patellar Osteochondral Fracture in a Pediatric Patient

2014 ◽  
Vol 2 (11_suppl3) ◽  
pp. 2325967114S0020
Author(s):  
Ahmet Güney ◽  
Ali Saltuk Argün ◽  
Murat Kahraman ◽  
İbrahim Karaman ◽  
Ökkeş Bilal
Keyword(s):  
Pediatric Patient ◽  
Male Patient ◽  
Femoral Condyle ◽  
Magnetic Resonance Images ◽  
Chondral Lesion ◽  
Lateral Femoral Condyle ◽  
Osteochondral Fracture ◽  
First Case ◽  
Osteochondral Fragment ◽  
Osteochondral Fractures

Objectives: Aim of this article is to present a pediatric patient with patellar osteochondral fracture treated by arthroscopical fixation and discuss through the literature. Patellar osteochondral fractures are kind of injuries mostly seen in adolescents and young adults, generally occur after trauma causing dislocation of patella and frequently accompanied by chondral damage in the lateral femoral condyle. Surgical intervention is indicated for the displaced and intraarticular fragments. Methods: Thirteen-year-old male patient referred our clinic with a swollen knee, limitation in knee movements, after he had fallen on his right knee while skating 2 weeks previously and was also unable to stand on his right leg. Plain radiogram, computerized tomography and magnetic resonance images of the right knee evaluated in our clinic and a chondral defect (17x10mm in size) in distal of medial marge of patella and an intraarticular osteochondral fragment just inferomedial to patella and anterior to lateral femoral condyle was determined. Results: In the arthroscopical evaluation osteochondral defect and intraarticular fragment were observed. In addition there was chondral lesion on the chondral surface of lateral femoral condyle. Osteochondral fragment was replaced to the distal part of medial marge of patella as arthroscopically, then retrograde fixed using 2 compressive screws (24x2.7 mm and 26x2.7 mm) from patella to the fragment. Conclusion: As patellar osteochondral fractures usually occur following acute dislocation of patella, rarely may occur without dislocation. We could find 2 cases in the literature which aren't accompanied by dislocation of patella. One of them is a non-displaced fracture and the other one is an osteochondral fragment with 15x20 mm in size which was resected due to inconformity. Eighty percent of acute dislocations of patella are accompanied by contusions on lateral femoral condyle and intraarticular fragments are present in 11 to 74 percent of cases. In this article we present 13 year-old male patient with an osteochondral fracture in the inferior of medial marge of patella without dislocation of patella, which was displaced into joint space and accompanied by a chondral lesion on the lateral femoral condyle, and then treated by artroscopical reduction and fixation. Our case seems to be original due to occuring without dislocation of patella and being the first case treated by arthroscopical intervention. Displaced and intraarticular patellar osteochondral fractures should be replaced and fixed by surgically. We consider that when compared with open joint surgery, arthroscopical replacement and fixation of osteochondral fractures causes lower morbidity and helps to improve rehabilitation of the patient.

Osteochondral Fracture of Posterior Aspect of Lateral Femoral Condyle After Lateral Patella Dislocation

2020 ◽  
Vol 10 (1) ◽  
pp. e18.00366-e18.00366
Author(s):  
Sang-Hoon Park ◽  
Ju-Hyung Yoo ◽  
Han-Kook Yoon ◽  
Kwangho Chung
Keyword(s):  
Femoral Condyle ◽  
Lateral Femoral Condyle ◽  
Patella Dislocation ◽  
Posterior Aspect ◽  
Osteochondral Fracture ◽  
Lateral Patella

scholarly journals Patella dislocation with unusual osteochondral fracture, whilst playing virtual reality game

2021 ◽  
Vol 13 (4) ◽  
pp. 80-83
Author(s):  
Sefa W Canbilen ◽  
Khaldoun El-Abed ◽  
Riaz Ahmad
Keyword(s):  
Virtual Reality ◽  
Femoral Condyle ◽  
Patella Dislocation ◽  
Osteochondral Fracture ◽  
Deep Flexion ◽  
Virtual Game

Case: We present case of a 37-year old male who sustained Patella dislocation with an unusual osteochondral fracture (OCF) involving the posterolateral femoral condyle, whilst playing a virtual game, wearing virtual game headset with goggles. He was treated conservatively for patella dislocation and had the OCF treated surgically. At 18 months follow up, his patella was stable and the OCF had healed. Conclusion: OCF of posterolateral femur following patella dislocation is unusual. It must be suspected in patients who sustain patella dislocation whilst doing deep flexion maneuvers. Patella dislocation can conceal an unusual OCF.

Autologous Oxygen-Releasing Nano-Biomimetic Scaffold with Chondrocytes Promotes Joint Repair After Trauma

2022 ◽  
Vol 12 (3) ◽  
pp. 602-608
Author(s):  
Wuping Yao ◽  
Yuji Li ◽  
Zhi Liu ◽  
Liuyi Yao ◽  
Rui Liang ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Composite Scaffold ◽  
Control Group ◽  
Tunel Staining ◽  
Osteochondral Fracture ◽  
Patellar Cartilage ◽  
Significant Difference ◽  
Biomimetic Scaffold ◽  
Joint Repair ◽  
Osteochondral Fractures

Our study assesses the role of a scaffold constructed by co-culture of autologous oxygen-releasing biomimetic scaffold (AONS) and chondrocytes in joint repair after trauma. A composite scaffold structure was used and a scaffold constructed of AONS and chondrocytes was transplanted into SD rats to create models of patellar cartilage fracture and hip osteochondral fracture, respectively followed by analysis of cell proliferation by immunofluorescence method, osteogenesis-related gene expression by RT-PCR, chondrocytes apoptosis by TUNEL staining. The blank control group and AONS composite chondrocytes have significant differences in apoptosis and cell proliferation of two fracture types (P <0.05). The autologous oxygen-releasing nanometers at 4 and 8 weeks showed a significant difference in the number of PCNA and TUNEL cells between biomimetic scaffold and chondrocytes in two groups (P < 0.05). The AONS and chondrocytes were effective for two types of fractures at 1, 4 and 8 weeks. The expression of various markers of intrachondral osteogenesis was decreased and the markers of hip osteochondral fracture were increased significantly (P < 0.05). Joint recovery was better than patellar cartilage fractures. The AONS composite chondrocyte scaffold promotes repair of patellar cartilage fractures and hip osteochondral fractures with a better effect on hip osteochondral fractures.

The site of waist measurement impacts the estimation of visceral fat: Results from three-dimensional photonic body scanning

2021 ◽  
pp. 1-32
Author(s):  
Katja D Repp ◽  
Dörte Radke ◽  
Till Ittermann ◽  
Martin Albers ◽  
Marcello R P Markus ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Waist Circumference ◽  
Visceral Fat ◽  
Iliac Crest ◽  
Three Dimensional ◽  
Resonance Imaging ◽  
3 Dimensional ◽  
Body Scanning ◽  
Standardized Protocol ◽  
Magnetic Resonance Imaging Mri

Abstract Currently various protocols regarding the site of waist circumference (WC) measurement are in place. This study aimed to analyze the effect of the site of WC measurement on visceral fat (VAT) estimation. WC was obtained at seven anatomical sites in 211 German volunteers (103 males) aged 23-81 using 3-dimensional photonic body scanning (PBS). At one site WC was additionally measured by tape. The quantity of VAT was assessed by magnetic resonance imaging (MRI). Models to estimate VAT based on WC were developed; the precision of the estimation is represented by R2. The influence of the applied method of WC assessment (tape vs. PBS) on the estimations is reported. Results show that the amount of estimated VAT and the precision of VAT estimation were dependent on the site of measurement. VAT was estimated most precisely by WC taken at the level of the lowest rib (WCrib: R²=0.75 females; 0.79 males), the minimum circumference (WCmin: R²=0.75 females; 0.77 males) and at the narrowest part of the torso (WCnar: R²=0.76 females; 0.77 males), and least precisely by WC assessed at the top of iliac crest (WCiliac: R²=0.61 females; 0.60 males). VAT estimates based on WC obtained by PBS were smaller and estimations were slightly less precise compared to estimates based on tape measures. Our results indicate that the method and the site of waist measurement should be considered when estimating VAT based on WC. The implementation of a standardized protocol using either WCrib, WCmin or WCnar could improve the precision of VAT estimation.

scholarly journals Novel Surgical Technique for Bone Marrow Lesion — Case Report

2016 ◽  
Vol 1 (s2) ◽  
pp. 27-30 ◽  
Author(s):  
Pal Fodor ◽  
Radu Prejbeanu ◽  
Vlad Predescu ◽  
Bogdan Codorean ◽  
Radu Fleaca ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Knee Injury ◽  
Femoral Condyle ◽  
International Knee Documentation Committee ◽  
Minimal Risk ◽  
Mri Findings ◽  
Case Presentation ◽  
Stress Injuries ◽  
Magnetic Resonance Imaging Mri ◽  
Viable Approach

Abstract Introduction: Bone marrow lesions (BMLs) are commonly described as magnetic resonance imaging (MRI) findings associated with stress injuries or trauma. The presence of BMLs closely correlates with pain and rapid joint deterioration. Case presentation: A 51-year-old healthy man presented to our clinic with severe knee pain due to BMLs. After 3 months of conservative treatment, arthroscopy and subchondroplasty (SCP) of the medial femoral condyle was performed. The IKDC (International Knee Documentation Committee) score improved from 39.9 to 66.7 at 6 months, and to 87.4 at 1 year after surgery. The KOOS (Knee Injury and Osteoarthritis Outcome) score improved from 38.5 to 77.7 at 6 months, and to 92.6 at 1 year after surgery. The Tegner Lysholm score improved from 23 to 80 at 6 months, and to 95 at 1 year after surgery. Conclusion: SCP may provide a viable approach to reduce pain associated with BML, with minimal risk of significant complications.

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