| patellar dislocation | <radiology> most common in young girls, (genu valgum, patella alta, quad mm deficiency more in girls), lateral dislocation, spontaneous reduction, recurrent dislocation, fracture associated in 5-10% (12 Dec 1998) |
|---|
| paradoxical patellar reflex | A tap on the patellar tendon causes contraction of the adductor, sudden passive extension of the leg causes a contraction of the extensor muscles of the leg. (05 Mar 2000) |
|---|---|
| patellar | <anatomy> Of or pertaining to the patella, or kneepan. Source: Websters Dictionary (01 Mar 1998) |
| patellar fossa of vitreous | A depression on the anterior surface of the vitreous body in which lies the lens. Synonym: fossa hyaloidea, lenticular fossa, patellar fossa of vitreous. (05 Mar 2000) |
| patellar ligament | <anatomy> The continuation of the central portion of the tendon of the quadriceps femoris muscle distal to the patella. It extends from the patella to the tuberosity of the tibia. (12 Dec 1998) |
| patellar network | The superficial portion of the articular vascular network of the knee. Synonym: rete patellae. (05 Mar 2000) |
| patellar reflex | A sudden contraction of the anterior muscles of the thigh, caused by a smart tap on the patellar tendon while the leg hangs loosely at a right angle with the thigh. Synonym: knee jerk, knee phenomenon, knee reflex, knee-jerk reflex, patellar tendon reflex, quadriceps reflex. (05 Mar 2000) |
| patellar retinaculum | Extensions of the aponeuroses of the vasti medialis and lateralis muscles which pass on each side of the patella, attaching to the margins of the patella and patellar ligament anteriorly, the collateral ligaments posteriorly and the tibial condyles distally; form the anteromedial and (with the fibrous expansion of the iliotibial tract) the anteromedial portions of the fibrous capsule of the knee. See: lateral patellar retinaculum, medial patellar retinaculum. (05 Mar 2000) |
| patellar surface of femur | The groove formed anteriorly between the anterosuperior portions of the femoral condyles that accommodates the patella. Synonym: facies patellaris femoris, trochlea femoris. (05 Mar 2000) |
| patellar tendon | <anatomy> The tendon which connects the quadriceps muscle to the tibia, providing extension at the knee joint. (27 Sep 1997) |
| patellar tendon reflex | A sudden contraction of the anterior muscles of the thigh, caused by a smart tap on the patellar tendon while the leg hangs loosely at a right angle with the thigh. Synonym: knee jerk, knee phenomenon, knee reflex, knee-jerk reflex, patellar tendon reflex, quadriceps reflex. (05 Mar 2000) |
| medial patellar retinaculum | Part of the aponeurosis of the vastus medialis muscle passing medial to the patella to attach to the medial condyle of the tibia, forming the anteromedial aspect of the fibrous capsule of the knee joint. Synonym: retinaculum patellae mediale. (05 Mar 2000) |
| lateral patellar retinaculum | Part of the aponeurosis of the vastus lateralis muscle passing lateral to the patella to attach to the tibial tuberosity. Synonym: retinaculum patellae laterale. (05 Mar 2000) |
| acromioclavicular dislocation | <orthopaedics> Disruption of the normal articulation between the acromion process and the clavicle. The acromioclavicular joint (AC joint) is normally stabilised by several ligaments that can be torn in the process of dislocating the AC joint). See: acromioclavicular sprain. (27 Sep 1997) |
| perilunar dislocation | Dislocation of carpal bones around the lunate, which remains in relation to the radius; distinguish from dislocation of lunate, Kienbock's dislocation. (05 Mar 2000) |
| perilunate dislocation | <radiology> Lunate remains aligned with radius, capitate dislocates (usually posteriorly), more common than lunate dislocation (radial-lunate ligaments stronger than lunate-capitate ligaments), associated with scaphoid fractures (75%) = transscaphoid perilunate dislocation (12 Dec 1998) |