Simplified Calculation for Corrective Osteotomies of Long Bones
نویسندگان
چکیده
OBJECTIVES To present a simplified calculation for the measurement of osteotomy wedges used for the correction of angular uniplanar deformities of long bones and to compare the simplified calculation proposed (circumferential calculation) with the classical trigonometric calculations, as well as with the exact calculation performed by computer software AutoCADtm. METHODS The software AutoCADtm was used to calculate the bone wedges, for mathematical comparison of the three main groups, each one of them containing 18 hypothetical bone deformities which angles ranging from 5 to 90 degrees, with 5 degrees intervals between them. RESULTS In the analysis of 18 deformities, the hypothetical angular bone, the average lengths of the corrective wedges obtained by the trigonometric, circumferential and the exact metods were, respectively, 32.21 ± 16.81 mm, 33.16 ± 18.63 mm and 35.22 ± 23.52 mm. There was no statistically significant difference between the three calculation methods (p>0.05). CONCLUSION The circumferential calculation proposed in this study is useful for being accurate and simple, not requiring any trigonometric knowledge. Level of Evidence II, Experimental Study.
منابع مشابه
Multiple drill-hole osteotomy in hand surgery – description of a novel application and proof of feasibility
BACKGROUND Malunion of phalangeal and metacarpal bones are often associated with impairment of hand function and pose a challenging task for treating surgeons in most cases. When applicable, corrective osteotomy is the treatment of choice, where the affected bone is cut to correct malalignment using chisels or saws. The use of these instruments is associated with several drawbacks especially in...
متن کاملThe Sofield-Millar operation in osteogenesis imperfecta
We have reviewed the results of the Sofield-Millar operation on 58 long bones in ten patients. If more than three osteotomies were undertaken the time to union of the bone was significantly prolonged (p < 0.001) with significant thinning of the bone (p < 0.02). We have used a modified technique in order to minimise surgical trauma and devascularisation of the bone. The rod is introduced under t...
متن کاملCorrective Osteotomy for Intra-Articular Distal Humerus Malunion
Background: An intra-articular distal humerus malunion can be disabling. To improve function, reduce pain and/ or prevent further secondary osteoarthritis an intra-articular corrective osteotomy can be considered. Herein we present the indications, practical guidelines for pre- operative planning and surgical technique. Subsequently, we provide long-term results in a small series. Meth...
متن کاملThree-dimensional virtual planning of corrective osteotomies of distal radius malunions: a systematic review and meta-analysis
The purpose of this study was to summarize and evaluate results of three-dimensional (3D-) planned corrective osteotomies of malunited distal radius fractures. 3D-planning techniques provide the possibility to address 3D-deformity that conventional planning methods might not address. We systematically searched PubMed, EMBASE and the Cochrane library for studies that performed a 3D-planned corre...
متن کاملCorrective midfoot osteotomies.
Corrective midfoot osteotomies involve complete separation of the forefoot and hindfoot through the level of the midfoot, followed by uni-, bi-, or triplanar realignment and arthrodesis. This technique can be performed through various approaches; however, in the high-risk patient, percutaneous and minimum incision techniques are necessary to limit the potential of developing soft tissue injury....
متن کامل