. A practical treatise on fractures and dislocations . evidently produced by a rup-ture of the ligamentum patellae in nearly its whole extent. Therewas almost no swelling, and the limb was moderately flexed. Byfirm pressure the patella could be restored to position, but as soon asthe hand was removed it returned to its original position. At the endof two months a good degree of motion existed at the knee-joint,which was 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-naturally, a
. A practical treatise on fractures and dislocations . evidently produced by a rup-ture of the ligamentum patellae in nearly its whole extent. Therewas almost no swelling, and the limb was moderately flexed. Byfirm pressure the patella could be restored to position, but as soon asthe hand was removed it returned to its original position. At the endof two months a good degree of motion existed at the knee-joint,which was 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-naturally, and the patella is distinctly felt upon the outer side. If thedislocation is partial, the outer margin of the patella forms anirregular sharp ridge in front of the external condyle. If it is com-plete, the inner margin presents itself in front of the external condyle,and the outer margin looks backwards. Usually the patient suffersgreat pain so long as the dislocation remains unreduced. Watson, of New York, saw a case of complete dislocation of the. Dislocation of the patella outwards. 1 Norris, Amer. Jouru. Med. Soi., vol. xxv., Feb. 1840, p. 276. DISLOCATIONS OF THE PATELLA OUTWARDS. 671 patella 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 days * Prognosis.— Seduction is in general easily accomplished, but a re-luxation is very prone to occur. In the few examples reported of apermanent luxation, the patients have eventually recovered the use ofthe limb in a great measure. Boyer saw four cases of this kind, inthree of which it existed in the left leg and had remained from patella? were easily replaced, but unless confined they soonbecame displaced again ; not one of them found it necessary to applyfor surg
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