Surgical Management Of Recurrent Patellar Dislocation
Nasser Moussa EI-Sanousy;
Abstract
The study of medial and lateral anatomical st uctmes that act to stabilize .thpatella is important in underst;indlng lisnrdcrs ol' pateHo iemoral tracking.
. .
Stabilizers' of the patella arc distinguished to both active and passive elements. Passive stabilizers include the patellar tendon, medial and lateral menisco- patellar ligament and contribution from the fascia lata. Active stabilizers include, lateral retinaculum, vastus lateral is and vastus medialis.
Factors contribute to patellar dislocation include genu valgum, abnormal intercondylar notch, femoral torsion, patella alta, abnormal shape of the patella, patellar dysplasia and defective stabilizing factors• (vastus medialis, lateral scill tissue support, generalized ligamentus laxity).
For accurate diagnosis of recurrent dislocation of the patella
(a detailed history, clinical examination, symptoms, signs, and radiological examination should be done).
'J'he onset spontaneously, less trauma, symptoms of
instability.
is usually sudden, the patella may reduecd disloc;Jtion occur with increasing flntucncy, ;md Patello-femoral malaligmenl can result in anterior knee p 1111 and sensation of patellar
Patients may show generalized ligamentous laxity, abnormal lateral mobility of lhc patella, a positive apprehension test. medial facet tenderness, increased internal femoral torsion, plain x-ray specially the lateral vicw shows thc position of patella (patella alta) with Increased Q-anglc. computerized tomography and MRI can also be used for the accurate radiological diagnosis.
. .
Stabilizers' of the patella arc distinguished to both active and passive elements. Passive stabilizers include the patellar tendon, medial and lateral menisco- patellar ligament and contribution from the fascia lata. Active stabilizers include, lateral retinaculum, vastus lateral is and vastus medialis.
Factors contribute to patellar dislocation include genu valgum, abnormal intercondylar notch, femoral torsion, patella alta, abnormal shape of the patella, patellar dysplasia and defective stabilizing factors• (vastus medialis, lateral scill tissue support, generalized ligamentus laxity).
For accurate diagnosis of recurrent dislocation of the patella
(a detailed history, clinical examination, symptoms, signs, and radiological examination should be done).
'J'he onset spontaneously, less trauma, symptoms of
instability.
is usually sudden, the patella may reduecd disloc;Jtion occur with increasing flntucncy, ;md Patello-femoral malaligmenl can result in anterior knee p 1111 and sensation of patellar
Patients may show generalized ligamentous laxity, abnormal lateral mobility of lhc patella, a positive apprehension test. medial facet tenderness, increased internal femoral torsion, plain x-ray specially the lateral vicw shows thc position of patella (patella alta) with Increased Q-anglc. computerized tomography and MRI can also be used for the accurate radiological diagnosis.
Other data
| Title | Surgical Management Of Recurrent Patellar Dislocation | Other Titles | العلاج الجراحى للخلع المتكرر للرضفة | Authors | Nasser Moussa EI-Sanousy | Issue Date | 2000 |
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