Hisashi Sakamoto

Investigation of Hospitalization Days after TKA Surgery

TKA術後在院日数を短縮させるべく問題点を解析するため，2005年に行われたTKA症例を検討した．対象症例は関節リウマチ患者を除く初回TKA 51例，52膝である．術後在院日数と手術時麻酔内容，術後の疼痛の度合い，術後合併症の有無について検討した．これらの症例の術後平均在院日数は30.8日であり，術後創治癒遅延や深部静脈血栓症の合併症を生じた症例では40.4日と延長していた．このような結果をふまえて，TKA術後在院日数を延長させるような合併症の予防対策を翌年にかけて計画した．

Stress X-ray Examination for Cruciate Ligament Deficient Knee

The accuracy of the stress X-ray examination for the cruciate ligament deficient knee was studied. A stress device with the knee in 90 degrees of flexion was used. The examination was useful for the complete deficiency of the posterior Cruciate ligament. While for deficiency of the anterior cruciate ligament or imcomplete posterior ligament injury, this method was not accurate. For getting higher accuracy, we must use MRI, tomography of the cruciate ligament after arthrography and stress X-ray with the knee in 30-degree flexion position.