Dataset Information

Corrective Osteotomies of Phalangeal and Metacarpal Malunions Using Patient-Specific Guides: CT-Based Evaluation of the Reduction Accuracy.

ABSTRACT:

Background

Surgical planning of corrective osteotomies is traditionally based on conventional radiographs and clinical findings. In the past 10 years, 3-dimensional (3D) preoperative planning approaches with patient-specific guides have been developed. However, the application of this technology to posttraumatic deformities of the metacarpals and phalangeal bones has not yet been investigated. Our goal was to evaluate the feasibility of the surgical application to the latter and to evaluate the extent and precision of correction.

Methods

We present results of 6 patients (8 osteotomies) treated with phalangeal or metacarpal corrective osteotomy. Deformities were located in the third ray in 1, fourth ray in 3, and fifth ray in 4 cases. Six malunited metacarpal bones (1 intra-articular) and 2 deformed proximal phalanges were treated. Computer-based 3D preoperative planning using the contralateral hand as a template allowed the production of 3D-printed patient-specific guides that were used intraoperatively for navigation. The precision of the reduction was assessed using pre- and postoperative computed tomography by comparing the postoperative bone model with the preoperatively simulated osteotomy. Range of motion and grip strength were documented pre- and postoperatively.

Results

The mean follow-up time was 6 months (range: 5-11 months). Rotational deformity was reduced from a mean of 10.0° (range: 7.2°-19.3°) preoperatively to 2.3° (range: 0.7°-3.7°) postoperatively, and translational incongruency decreased from a mean of 1.4 mm (range: 0.7-2.8 mm) to 0.4 mm (range: 0.1-0.9 mm).

Conclusion

Preliminary results indicate that a precise reduction for corrective osteotomies of metacarpal and phalangeal bones can be achieved by using 3D planning and patient-specific guides.

SUBMITTER: Hirsiger S

PROVIDER: S-EPMC6300182 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Publications

Corrective Osteotomies of Phalangeal and Metacarpal Malunions Using Patient-Specific Guides: CT-Based Evaluation of the Reduction Accuracy.

Hirsiger Stefanie S Schweizer Andreas A Miyake Junichi J Nagy Ladislav L Fürnstahl Philipp P

Hand (New York, N.Y.) 20170912 6

<h4>Background</h4>Surgical planning of corrective osteotomies is traditionally based on conventional radiographs and clinical findings. In the past 10 years, 3-dimensional (3D) preoperative planning approaches with patient-specific guides have been developed. However, the application of this technology to posttraumatic deformities of the metacarpals and phalangeal bones has not yet been investigated. Our goal was to evaluate the feasibility of the surgical application to the latter and to evalu ...[more]

PMID: 28895433

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Project description:BackgroundThe primary objective of this review is to estimate the rotational correction after corrective derotation osteotomies (CDO) for congenital radioulnar synostosis (CRUS). The secondary objective of this review is to identify the complications with CDO in CRUS.MethodsWe included studies in the English literature from electronic bibliographic databases Cochrane Central Register of Controlled Trials (CENTRAL), CINAHL, Directory of Open access journals (DOAJ), EMBASE, MEDLINE, ProQuest, PubMed, and Scopus up to December 2020 that determined the effects of CDO in CRUS for two or more cases with a mean follow-up of 1 year or more. We used the National Institutes of health quality assessment tool for case series (interventional) and Modified Coleman methodology Score for assessment of risk of bias in the included studies.ResultsWe pooled 383 forearms (318 participants) from 23 studies with mean age of 6.28 ± 1.75 years. The mean pronation deformity was 72.83 ± 15.64° from 22 studies. The CDO derotated forearm to 10.4 ± 5.90° of mean pronation in 12 studies and 13.47 ± 9.51° of mean supination in nine studies. One study corrected the forearms to a neutral position. The mean derotation from CDO was 73.13 ± 16.54° (35° supination to 130° pronation). The overall mean difference was - 68.26° [95% CI - 86.87, - 49.66] of correction favoring supination. There were eight transient nerve palsies and six compartment syndromes from synostosis site osteotomies (four studies).DiscussionWe had poor-quality studies at a high risk of bias on the described tools of assessment. We could estimate the directional effect of CDO in CRUS favoring correction from pronation to supination; however, due to the heterogeneity among studies, we cannot comment on the most efficient and least harmful CDO techniques. The single bone osteotomies seem to be efficient, simple, and reportedly low on complications but need evaluation. We cannot define the indications for correction and expected improvement in functional outcomes from osteotomy techniques.Supplementary informationThe online version contains supplementary material available at 10.1007/s43465-021-00582-4.

Dataset Information

Corrective Osteotomies of Phalangeal and Metacarpal Malunions Using Patient-Specific Guides: CT-Based Evaluation of the Reduction Accuracy.

Background

Methods

Results

Conclusion

Publications

Corrective Osteotomies of Phalangeal and Metacarpal Malunions Using Patient-Specific Guides: CT-Based Evaluation of the Reduction Accuracy.

Similar Datasets

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