OBJECTIVE: To provide a series of surgical approaches for treatment of talus neck fracture, ischemic necrosis of talus body, and other bone lesions in ankle and foot. METHODS: The major blood supply to cuboid bone, medial cuneiform bone and navicular bone was observed in 30 adult cadavers, by infiltration of red emulsion via major arteries of the lower limbs. Based on these anatomical investigations, 3 types of vascularized tarsal bone grafting were designed for repair of bone lesions in the area of ankle and foot, and applied in 49 clinical cases, ranging from 10 to 58 years in age, and 43 cases of which were followed up for 4 years and 3 months in average. RESULTS: Primary healing was achieved in 40 cases, and secondary healing achieved after further surgical intervention in other 3 cases. The function of all ankle joints recovered satisfactorily. CONCLUSION: The designed three types of vascularized tarsal bone flaps are easy and reliable for dissection because of their superficial pedicles, and they are available for different clinical cases with various bone lesions in ankle and foot.
Objective To Analyze the high risk factors correlated to the perioperative complications of patients with lung cancer, aiming to study their predictive value on surgical safety and guide the perioperative treatment. Methods The clinical experience of 452 lung cancer patients undergone operation from June 2000 to May 2006 were retrospectively study. The risk factors which closely related to the occurrence of postoperative complications were analyze by multivariate statistical analysis with logistic regression. Results The operative mortality was 0.66%（3/452）, and the incidence rate of postoperative complications was 8.85%(40/452), including pulmonary infection, pulmonary atelectasis, arrhythmia, respiratory function failure, empyema, bronchopleural fistula, thoracic bleeding, etc. Multivariate statistical analysis with logistic regression demonstrated that the risk factors which closely related to the occurrence of postoperative complications were age over 70 year (OR=17.823), smoking index over 400 piece year(OR=5.666), concomitance with diseases of vital organs(OR=8.290), modus operandi of pneumonectomy(OR=7.991), forced expiratory volume in one second (FEV1.0%)≤60% (OR=0.922). Conclusion To evaluate above factors of lung cancer patients before operation, the probability of postoperative complications occurrence can be roughly forecasted. This can provide actively clinical guide to help the patients overcome the perioperation successfully and to increase the safety of surgery.
To introduce the basic research and cl inical appl ications of the vascularized epi physeal transplantation. Methods The appl ied anatomy, experimental researches, and cl inical appl ication about the vascularized epi physeal transplantation were summarized in the past two decades. The effectiveness of epi physeal transplantation were discussed in the article. Results The epiphysis flap of fibular head with inferior lateral genicular artery and the epiphysis flap of il iac with deep superior branch of superior gluteal artery can be used as the donor sites of epiphyseal transplantation. Animal experiments proved that the vascularized epi physis survived and maintained growth after transplantation. In a typical caseundergoing distal ulnar reconstruction by the graft of peroneal epiphyseal, the 18-year follow-up results showed that the repaired ulna was nearly as long as the contralateral side and the function of the forearm was good. Conclusion It is an effective way to repair epiphyseal defects of long bones in children with vascularized epiphyseal transplantation.
OBJECTIVE: To study the results of humeral fracture and non-union repaired by vascularized periosteal flap transfer. METHODS: The clinical data of humeral fracture and non-union in 23 cases were analysized retrospectively since 1995. Among them, minuted or several segmental fracture in 12 cases, non-union in 11 cases, and following injury of radial nerve in 7 cases. The operative method was open reduction, inner or external fixation with vascularized periosteal flap transfer. RESULTS: The period of follow-up was 6 months to 2 years. The repair result of all patients was excellent and good, but elbow joint motion in 2 cases of non-union was not satisfactory. The periosteal flap had good osteogenic ability. The period of bone union was 2 to 5 months in humeral fracture and non-union. And function of radial nerve was recovery. CONCLUSION: Transfer of distal humeral periosteal flap pedicled with radial collateral vessels is a better method for humeral fracture and non-union.
OBJECTIVE: To investigate the anatomic basis for transposition of the distal dorsal ulna bone flap pedicled with dorsal metacarpal artery to repair the defect of the 3rd or 4th and 5th metacarpal bone head. METHODS: In 30 adult cadaveric upper limbs, the branches and constitutions of the dorsal carpal arterial networks were observed. RESULTS: The dorsal carpal arterial networks were consisted of the dorsal carpal branches of ulnar and radial arteries, the terminal branches of posterior interosseous artery and the dorsal carpal branch of anterior interosseous artery, and then the 2nd, 3rd, 4th dorsal metacarpal branches were originated from the networks. The dorsal metacarpal branches were anastomosed with the deep branches of deep palmar arch to constitute the dorsal metacarpal artery. CONCLUSION: Transposition of the distal dorsal ulna bone flap pedicled with the 3rd, 4th dorsal metacarpal arteries can be used in repairing the defect of 3rd, 4th and 5th metacarpal bone head.
Teh transposition of the first cuneiform bone with the anterior medial malleolar artery peidcel had been utilized successfully. It provided a new donor bone for repairing talus neck fracture. necrosis of the talus body and for fusing the joints of the ankle and foot. The position of the artery was comparatively constant, sothat the bone flap could be easily accessible. The operations was simple and easily performed.