|Possible predictors for difficult removal of locking plates: A case-control study|
|Hou, Yun Fei; Zhou, Fang; Tian, Yun; Ji, Hong Quan; Zhang, Zhi Shan; Guo, Yan; Lv, Yang|
|关键词||LCP LISS Difficult removal Correlated factors Prevention|
|刊名||INJURY-INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED|
|WOS标题词||Science & Technology|
|类目[WOS]||Critical Care Medicine ; Emergency Medicine ; Orthopedics ; Surgery|
|研究领域[WOS]||General & Internal Medicine ; Emergency Medicine ; Orthopedics ; Surgery|
|关键词[WOS]||INVASIVE STABILIZATION SYSTEM ; HARDWARE REMOVAL ; IMPLANT REMOVAL ; FRACTURE ; TITANIUM ; COMPLICATIONS ; SCREW ; FIXATION ; FOREARM ; AGE|
Introduction: Difficult removal of locking plates including less invasive stabilisation systems (LISSs) and locking compression plates (LCPs) sometimes occur. However, investigations of the mechanisms and correlated factors of complicated removal remain scant. This study aims to identify correlated factors for the difficult removal of locking plates and to propose suggestions for decision making regarding implant removal and the prevention of complicated removal.
Materials and methods: In total, 308 consecutive patients who underwent LCP/LISS removal from Sep. 2004 to Nov. 2013 were assessed. Using the Mann-Whitney U test, we analysed the correlation between difficult removal and the duration between open reduction and internal fixation (ORIF) and implant removal as well as the correlation between difficult removal and the patients′ age. Using Chi Square test, we assessed the correlations between complicated removal and the size, location, insertion technique and cortical purchase of the locking head screw (LHS). Correlated factors were separately determined in upper and lower extremities. Rates of difficult removal in different fracture locations were evaluated, and postoperative complications were documented.
Results: Of the total 308 patients, thirty-seven had intra-operative difficulties, and six patients experienced postoperative complications. Six out of fifteen patients with peri-elbow fractures and five out of seventeen patients with femur fractures suffered difficult removal, while four out of one hundred patients with malleolar fractures had intra-operative difficulties. Difficulties were experienced with 30 of 338 LCPs, 7 of 32 LISSs, 67 of 1533 small-diameter (<= 3.5-mm) LHSs, and 12 of 442 large-diameter (>= 4.5-mm) LHSs. Three LCPs and seventeen small-diameter LHSs were retained. A longer interval between ORIF and removal, younger age and bicortical screws correlated with difficult removal in the upper extremities, and a longer duration before removal, small-diameter LHS and minimally invasive insertion of LHS were predictors in the lower extremities.
Conclusions: Complications occur with LCP/LISS removal, and it should not be a routine procedure. If removal is indicated, performing surgery as soon as radiographs show fracture healing is recommended. Different considerations should apply when making decisions and removing implants from patients with different fracture sites. (C) 2015 Elsevier Ltd. All rights reserved.
|作者单位||Peking Univ, Hosp 3, Orthoped Trauma, Beijing 100191, Peoples R China|
|Hou, Yun Fei,Zhou, Fang,Tian, Yun,et al. Possible predictors for difficult removal of locking plates: A case-control study[J]. INJURY-INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED,2015,46(6):1161-1166.|
|APA||Hou, Yun Fei.,Zhou, Fang.,Tian, Yun.,Ji, Hong Quan.,Zhang, Zhi Shan.,...&Lv, Yang.(2015).Possible predictors for difficult removal of locking plates: A case-control study.INJURY-INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED,46(6),1161-1166.|
|MLA||Hou, Yun Fei,et al."Possible predictors for difficult removal of locking plates: A case-control study".INJURY-INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED 46.6(2015):1161-1166.|
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