Differentially Loaded Radiostereometric Analysis to Monitor Fracture Stiffness: a Feasibility Study

Overview

Journal Clin Orthop Relat Res

Publisher Wolters Kluwer

Specialty Orthopedics

Date 2009 Feb 3

PMID 19184262

Citations 5

Authors

Mellick J Chehade

Lucian B Solomon

Stuart A Callary

Sam H Benveniste

Anthony P Pohl

Donald W Howie

Affiliations

Soon will be listed here.

Abstract

Inability to accurately and objectively assess the mechanical properties of healing fractures in vivo hampers clinical fracture management and research. We describe a method to monitor fracture stiffness during healing in a clinical research setting by detecting changes in fracture displacement using radiostereometric analysis and simultaneously measuring applied axial loads. A method was developed for load application, positioning of the patient, and radiographic setup to establish the technique of differentially loaded radiostereometric analysis (DLRSA). A DLRSA examination consists of radiostereometric analysis radiographs taken without load (preload), under different increments of load, and without load (postload). Six patients with distal femur fractures had DLRSA examinations at 6, 12, 18, and 26 weeks postoperatively. The DLRSA method was feasible in a clinical setting. The method provides objective and quantifiable data for internally fixed fractures and may be used in clinical research as a tool to monitor the in vivo stiffness of healing femoral fractures managed with nonrigid internal fixation.

Citing Articles

Radiostereometric Analysis Allows Assessment of the Stability and Inducible Displacement of Pelvic Ring Disruptions during Healing: A Case Series.

Ladurner A, Callary S, Mitra A, Rickman M, Thewlis D, Solomon L J Clin Med. 2020; 9(11).

PMID: 33114372 PMC: 7692147. DOI: 10.3390/jcm9113411.

Radiostereometric analysis of the initial stability of internally fixed femoral neck fractures under differential loading.

Finnila S, Moritz N, Strandberg N, Alm J, Aro H J Orthop Res. 2018; 37(1):239-247.

PMID: 30273993 PMC: 6587786. DOI: 10.1002/jor.24150.

Does cup-cage reconstruction with oversized cups provide initial stability in THA for osteoporotic acetabular fractures?.

Solomon L, Studer P, Abrahams J, Callary S, Moran C, Stamenkov R Clin Orthop Relat Res. 2015; 473(12):3811-9.

PMID: 26194560 PMC: 4626507. DOI: 10.1007/s11999-015-4460-1.

Emerging ideas: soft tissue applications of radiostereometric analysis.

Solomon L, Callary S Clin Orthop Relat Res. 2010; 469(5):1512-6.

PMID: 21104355 PMC: 3069255. DOI: 10.1007/s11999-010-1681-1.

The accuracy and precision of radiostereometric analysis in monitoring tibial plateau fractures.

Solomon L, Stevenson A, Callary S, Sullivan T, Howie D, Chehade M Acta Orthop. 2010; 81(4):487-94.

PMID: 20465528 PMC: 2917573. DOI: 10.3109/17453674.2010.487930.

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