ABSTRACT
PURPOSE: This study aimed to investigate anterior knee symptoms in patients who underwent anterior cruciate ligament (ACL) reconstruction using bone-patellar tendon-bone (BPTB) graft followed by implantation of a beta-tricalcium phosphate (β-TCP) block as a bone void filler. MATERIALS AND METHODS: We retrospectively reviewed 84 cases of synthetic bone grafting using a β-TCP block for the patellar bone defect in ACL reconstruction with a BPTB autograft. Computed tomography of the operated knee was performed immediately after the surgery to evaluate whether the grafted β-TCP block protruded forward from the anterior surface of the patella. On the basis of the results, the cases were divided into a protrusion group (n=31) and a non-protrusion group (n=53). Anterior knee symptoms at 12 months postoperatively and absorption of the grafted β-TCP block were compared between the two groups. RESULTS: Except for patellofemoral crepitus, there was no significant difference in anterior knee symptoms between the two groups (p>0.05). The incidence of patellofemoral crepitus was significantly lower in the protrusion group than in the non-protrusion group (p=0.027). The groups showed no significant difference in β-TCP absorption. CONCLUSIONS: The present study demonstrated that the protrusion of β-TCP that was used as a bone void filler had no adverse effects.
Subject(s)
Humans , Absorption , Anterior Cruciate Ligament Reconstruction , Anterior Cruciate Ligament , Autografts , Bone Transplantation , Bone-Patellar Tendon-Bone Grafts , Incidence , Knee , Patella , Retrospective Studies , Tissue Donors , TransplantsABSTRACT
To identify the factors affecting the high mortality rates associated with ruptured abdominal aortic aneurysm (rAAA), a review was made of the records of 35 consecutive patients (33 males, 2 females, mean age 69.9yr.) treated surgically between 1988 and 1997. Preoperatively profound shock (systolic pressure less than 70mmHg) was seen in 19 patients and loss of consciousness in 9. Maximum diameter of the AAA was 79±20mm and the preoperative hemoglobin level was 9.1±2.4g/dl. Proximal aortic clamp was performed at the intrathoracic aorta in 3 cases, the suprarenal aorta in 6, balloon occlusion in 4, and the infrarenal aorta in 22. Since 1994, diltiazem and nitroglycerin have been routinely given for latent myocardial ischemia and early induction of continuous hemodialysis for renal failure was attempted postoperatively. The overall hospital mortality rate was 20%. Multisystem failure was the most frequent cause of hospital death (57.1%), followed by pneumonia with sepsis in 28.6%, and intraoperative cardiac arrest (14.3%). By univariate analysis of various factors associated with the mortality rate, loss of consciousness, abnormality on electrocarciogram (ECG) and duration of shock for more than five hours were statistically significant. Multivariate analysis with stepwise logistic regression demonstrated that an ECG abnormality and duration of shock more than five hours were associated with high mortality, but not at statistically significant levels. These findings suggest that factors that are predictive of death (loss of consciousness and ECG abnormality) may be a reflection of shock in this patient population.
ABSTRACT
A 13-year-old girl with asplenia syndrome who previously had undergone left subclavian-to-pulmonary artery shunt after removal of a cavopulmonary shunt with interposition of a short segment of the left superior vena cava was admitted for congestive heart failure. Angiography revealed aneurysmal dilatation of the left superior vena cava. Percutaneous coil embolization of the shunt was successfully performed and the venous aneurysm was diminished. Interposition of a venous component in systemic-to-pulmonary artery shunt should be avoided even after removing a cavopulmonary shunt.
ABSTRACT
A 75-year-oldm an with an aortocaval fistula as a complication of aortoiliac aneurysm visited our hospital. He complained of shortness of breath and melena. Physical examination revealed a pulsating abdominal mass with thrill and continuous murmur. Chest X ray showed cardiomegaly with pulmonary congestion. CT scan showed infrarenal aortoiliac aneurysm and echo Doppler scan revealed aortocaval communication at the inferior caval bifurcation. Aortoiliac bifurcated graft and patch reconstruction of IVC were performed. The postoperative course was uneventful, and his congestive heart failure and hepatorenal dysfunction immediately improved.