scholarly journals Two Patients with Osteochondral Injury of the Weight-Bearing Portion of the Lateral Femoral Condyle Associated with Lateral Dislocation of the Patella

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Shuji Nakagawa ◽  
Yuji Arai ◽  
Hiroaki Inoue ◽  
Satoru Atsumi ◽  
Shohei Ichimaru ◽  
...  
Keyword(s):  
Patellar Dislocation ◽  
Femoral Condyle ◽  
Weight Bearing ◽  
Lateral Femoral Condyle ◽  
Bearing Surface ◽  
Lateral Dislocation ◽  
Osteochondral Injury ◽  
Osteochondral Fragment ◽  
Femoral Groove ◽  
Dislocation Of The Patella

Complications of patellar dislocation include osteochondral injury of the lateral femoral condyle and patella. Most cases of osteochondral injury occur in the anterior region, which is the non-weight-bearing portion of the lateral femoral condyle. We describe two patients with osteochondral injury of the weight-bearing surface of the lateral femoral condyle associated with lateral dislocation of the patella. The patients were 18- and 11-year-old females. Osteochondral injury occurred on the weight-bearing surface distal to the lateral femoral condyle. The presence of a free osteochondral fragment and osteochondral injury of the lateral femoral condyle was confirmed on MRI and reconstruction CT scan. Treatment consisted of osteochondral fragment fixation or microfracture, as well as patellar stabilization. Osteochondral injury was present in the weight-bearing portion of the lateral femoral condyle in both patients, suggesting that the injury was caused by friction between the patella and lateral femoral condyle when the patella was dislocated or reduced at about 90° flexion of the knee joint. These findings indicate that patellar dislocation may occur and osteochondral injury may extend to the weight-bearing portion of the femur even in deep flexion, when the patella is stabilized on the bones of the femoral groove.

Influence of posterior lateral femoral condyle geometry on patellar dislocation

2015 ◽  
Vol 135 (11) ◽  
pp. 1503-1509 ◽  
Author(s):  
Dominic Gillespie ◽  
Daniel Mandziak ◽  
Colin Howie
Keyword(s):  
Patellar Dislocation ◽  
Femoral Condyle ◽  
Lateral Femoral Condyle

scholarly journals Mosaic arthroplasty of the medial femoral condyle in horses — An experimental study

2014 ◽  
Vol 62 (2) ◽  
pp. 155-168 ◽  
Author(s):  
Gábor Bodó ◽  
Gábor Vásárhelyi ◽  
László Hangody ◽  
László Módis
Keyword(s):  
Hyaline Cartilage ◽  
Femoral Condyle ◽  
Weight Bearing ◽  
Medial Femoral Condyle ◽  
The Other ◽  
Bearing Surface ◽  
Femoral Trochlea ◽  
Osteochondral Grafts ◽  
Mosaic Arthroplasty

One Arabian and 5 Hungarian half-bred horses were used to study the macroscopic and microscopic survival of autologous osteochondral grafts in the weight-bearing surface of the medial femoral condyle (MFC). Grafts were harvested from the cranial surface of the medial femoral trochlea (MFT) under arthroscopic control. Three of them were transplanted into the weight-bearing surface of the contralateral MFC using an arthrotomy approach. Three months later this transplantation procedure was repeated on the opposite stifle joints in the same animals, but at that time transplantation was performed arthroscopically. Follow-up arthroscopy was carried out 12 months after the first operations, and biopsies were taken from both the recipient and the donor sites for histological examination. During follow-up arthroscopy, the transplanted areas looked congruent and smooth. Microscopically, the characteristics of hyaline cartilage were present in 5 out of the 10 biopsies examined; however, in the other half of biopsies glycosaminoglycan (GAG) loss and change in the architecture of the transplanted cartilage was observed. In a 16-year-old horse, all grafts broke during harvesting, and thus transplantation was not performed. No radiological signs of osteoarthritic changes were detected 9 to 12 months after the operations in the donor and recipient joints. Clinically, no lameness or effusion was present three months after the transplantations.

Subchondral impaction fractures of the non-weight-bearing portion of the lateral femoral condyle

2012 ◽  
Vol 42 (2) ◽  
pp. 177-185 ◽  
Author(s):  
Ruben Depasquale ◽  
Anastasia Fotiadou ◽  
Dalavaye Suresh Kumar ◽  
Radhesh Lalam ◽  
Bernhard Tins ◽  
...  
Keyword(s):  
Femoral Condyle ◽  
Weight Bearing ◽  
Lateral Femoral Condyle

scholarly journals Visualization of osteochondral fragments in the cavity of the knee joint in case of patellar dislocation in children

2021 ◽  
Vol 24 (5) ◽  
pp. 317-322
Author(s):  
Olga V. Bozhko ◽  
Tolibdzhon A. Akhadov ◽  
Ilya A. Melnikov ◽  
Dmitry M. Dmitrenko ◽  
Tatyana D. Kostikova ◽  
...  
Keyword(s):  
Patellar Dislocation ◽  
Outer Edge ◽  
Lateral Condyle ◽  
Mri Scan ◽  
Lateral Dislocation ◽  
Observation Methods ◽  
Lateral Patellar Dislocation ◽  
Extent Of Damage ◽  
Ct And Mri ◽  
Dislocation Of The Patella

The objective was to assess the capabilities of MRI and CT in visualizing free bone and cartilage fragments in the knee cavity after lateral dislocation of the patella. Materials and methods. CT and MRI were performed in 220 patients, including 127 girls and 93 boys aged 12 to 18 years (mean age 14.5 years), with acute lateral patellar dislocation. Results. Lateral dislocation of the patella in 25% of cases led to the appearance of osteochondral fragments. CT scan revealed and confirmed osteochondral fragments surgery in 55 people (100%), MRI scan - in 50 people (90%). The sites of the detachment of the osteochondral fragments were: a medial facet of the patella in 22 (38.8%), the outer edge of femur lateral condyle in 33 (58.2%), t patella and lateral condyle of the femur in 2 patients (3%). Free cartilage fragments not detected by CT were detected by MRI in 2 patients. Conclusion. Patellar dislocation is an injury that is likely to require surgery. The volume of osteochondral and soft tissue lesions can be established with the maximum degree of probability by MRI while detecting small osteochondral fragments is most reliable with CT. Combining these two observation methods provides the complete possible information about the extent of damage, which allows timely resolution of treatment tactics.

Sign in / Sign up

Export Citation Format

Share Document