ABSTRACT
Objective To observe the short-term clinical outcomes of arthroscopic single-tibial tunnel Pushlock fixation in the treatment of tibial avulsion fracture of the posterior cruciate ligament (PCL).Methods From December 2015 to January 2018,15 patients with tibial avulsion fracture of PCL were treated at Department of Articular Surgery,The Third Affiliated Hospital to Hebei Medical University.They were treated with arthroscopic single-tibial tunnel Pushlock fixation.All the fractures were fresh.They were 9 males and 6 females,aged from 14 to 64 years (average,33.6 years).The short-term outcomes were evaluated by comparing their preoperative and postoperative flexion of the knee,International Knee Documentation Committee (IKDC) and Lysholm scores.Results The operation lasted from 40 to 70 minutes (average,53 minutes).The 15 patients were successfully followed up for 10 to 18 months (average,12.2 months).All the fractures united well within 3 months after operation.All the posterior drawer tests were negative,showing no displacements or no complications like lesions of popliteal fossa,nerves and vessels,or impaired knee extension.At 6 months after surgery,the knee flexion (123.4°± 6.5°),the Lysholm scores (91.8 ± 3.5) and the IKDC scores (95.5 ± 1.6) were all significantly improved compared with the preoperative values (77.5°±13.1°,46.8 ±8.9 and 37.0±8.9) (P ＜0.05).Conclusion The tibial avulsion fracture of PCL can be treated by arthroscopic single-tibial tunnel Pushlock fixation with satisfactory early outcomes.
ABSTRACT
Objective To evaluate the air bronchograpm in the differential diagnosis of peripheral solitary pulmonary nodule(3 cm or less) by computed tomography (CT). Methods The thin section CT images of air bronchogram in 190 eases with peripheral solitary pulmonary nodule confirmed by surgical resection and/or bronehoscopy and/or percutaneous needle biopsy and histopathology were analysed. Results The air bronchogram was seen in 52/100(52%) cases with peripheral lung cancers and in 29/50 cases (58%) with inflammatory pseudotumors on CT scans. Of lung cancers, there were adenocareinoma in 23/31 eases, squamous cell carcinoma in 14/41 cases, adenosquamous carcinom in 4/5 cases,small cell carcinoma in 7/14 cases and poorly differentiate carcinoma in 5/9 cases. The air bronchograms were not seen in 32 tuberculomas,5 hamartomas and 3 pulmonary cysts. Conclusion Air bronchogram can be seen in several pnlmonary nodules,it does not appear to be the characteristic of small peripheral carcinoma especially adenocarcinoma, and it alsc can not be helpful in distingushing malignant and benign pulmonary nodules.