A practical treatise on fractures and dislocations . is left patella outwards, its outer edge beingmuch raised, and resting on the side of the externalcondyle of the femur, while its inner edge was de-pressed, and firmly fixed in the hollow between thecondyles. The internal lateral ligament of the kneewas ruptured, allowing the head of the tibia to bemoved considerably outwards. A depression existed,also, between the tubercle of the tibia and the lowerend of the patella, at the middle and inner side ofthe knee, evidently produced by a rupture of the liga-mentum patellae in nearly its whole ext
A practical treatise on fractures and dislocations . is left patella outwards, its outer edge beingmuch raised, and resting on the side of the externalcondyle of the femur, while its inner edge was de-pressed, and firmly fixed in the hollow between thecondyles. The internal lateral ligament of the kneewas ruptured, allowing the head of the tibia to bemoved considerably outwards. A depression existed,also, between the tubercle of the tibia and the lowerend of the patella, at the middle and inner side ofthe knee, evidently produced by a rupture of the liga-mentum patellae in nearly its whole extent. Therewas almost no swelling, and the limb was moderately flexed. By firmpressure the patella could be restored to position, but as soon as thehand was removed it returned to its original position. At the end oftwo months a good degree of motion existed at the knee-joint, whichwas in no way inflamed or Symptoms.—The limb is slightly bent, but immovable; the breadthof the knee is considerably increased; the inner condyle projects un-. Dislocation of the pa-tella outwards. 1 Norris, Amer. Journ. Med. Sci., vol. xxv., Feb. 1849, p. 698 DISLOCATIONS OF THE PATELLA. naturally, and the patella is distinctly felt upon the outer side. If thedislocation is partial, the outer margin of the patella forms an irregularsharp ridge in front of the external condyle. If it is complete, theinner margin presents itself in front of the external condyle, and theouter margin looks backwards. Usually the patient suffers great painas long as the dislocation remains unreduced. Watson, of New York, saw a case of complete dislocation of thepatella outwards in a fat young lady with lax fibre, and occasionedby dancing. He says the knee was slightly but firmly flexed. Itwas reduced by a very slight pressure with the fingers, and althoughsome inflammation with effusion into the joint ensued, the use of thelimb was completely restored in a week or ten Prognosis.—Eeduction is in
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