Corrective Osteotomy Of Distal Radius Research Articles

Clinical, functional and radiological outcomes of the use of fixed angle volar locking plates in corrective distal radius osteotomy for fracture malunion.

Background and aim:Fractures of the distal radius are a common injury and mal-union can occur in those managed non-operatively. This can cause significant functional limitations along with pain. A corrective osteotomy with the use of a volar locking plate aims to restore articular surface congruency and improve outcomes. We present our local experience with clinical, functional and radiological outcomes of corrective osteotomy using a fixed angle volar locking plate and bone graft for management of distal radius mal-union.Methods:Retrospective study. All adult patients. Both pre and post operatively clinical range of motion was recorded. Post operative PROMS was measure by DASH, MAYO and SF-12 and pain by means of a VAS measured from 0-10. Mean follow up period was at 15 months.Results:32 patients underwent the studied procedure. 24F-8F. Mean age: 56. Radiological union of corrective osteotomy: 28 (88%) of patients. 4 patients required further operative treatment to achieve corrective union. No other reported complications post-op. Post-operatively flexion improved by 24 and extension 20. Pronation was improved by 24 and supination 22. Pain was improved from an average VAS pre-operative of 5.6 to 1.6 post-operatively. Mean DASH scored improved from 57.8 to 16.2 post-operatively and MAYO 38.5 to 58.6. The mean post-operative SF-12 score was 46.2 from 31.Conclusions:In this series of 32 patients (the biggest reported in the literature in our knowledge) a corrective osteotomy with fixed-angle volar locking plate for mal-united distal radius has shown to improve both clinical-radiological and patient reported outcomes and provide good results of the very few complications’ treatments. (www.actabiomedica.it)

Combined radius addition osteotomy and ulnar shortening to correct extra-articular distal radius fracture malunion with severe radial deviation and ulnar plus.

Malunion can occur in 11 to 28% of Distal Radius Fractures and can result in radius shortening and ulnar plus with wrist deviation, pain and disability. We aimed to report particular cases of extra-articular distal radius fracture malunion with severe radial deviation and ulnar plus treated by corrective osteotomy of distal radius with bone graft associated to ulnar procedure. One of these patients was firstly operated with ulna subtraction osteotomy synthesized with plate and in a second stage with distal radius corrective addition osteotomy with homologous bone graft, plate and external fixator. Two other cases were treated in a single-step byradius addition osteotomy and caput ulnae Darrach resection. These three patients were followed-up from 2 to 12 years, successfully observing the maintenance of anatomical correction and recovery of ROM and strength with good pain relief and return to daily activities. After Darrach procedure external-fixation wasn’t needed and pronation-supination was better. Darrach procedure can solve ulna plus and improve ROM in pronation-supination with a quicker healing, avoiding the risk of ulnar non-union. Darrach’s procedure associated to addition corrective osteotomy of distal radius can be a valid treatment for distal radius severe malunion, in patients with low-moderate functional demand. In conclusion, the surgeon should choose the right corrective treatment after the complete evaluation of the patient and his functional needs. (www.actabiomedica.it)

Biomechanical considerations in the design of patient-specific fixation plates for the distal radius

Use of patient-specific fixation plates is promising in corrective osteotomy of the distal radius. So far, custom plates were mostly shaped to closely fit onto the bone surface and ensure accurate positioning of bone segments, however, without considering the biomechanical needs for bone healing. In this study, we investigated how custom plates can be optimized to stimulate callus formation under daily loading conditions. We calculated implant stress distributions, axial screw forces, and interfragmentary strains via finite element analysis (FEA) and compared these parameters for a corrective distal radius osteotomy model fixated by standard and custom plates. We then evaluated these parameters in a modified custom plate design with alternative screw configuration, plate size, and thickness on 5 radii models. Compared to initial design, in the modified custom plate, the maximum stress was reduced, especially under torsional load (− 31%). Under bending load, implants with 1.9-mm thickness induced an average strain (median = 2.14%, IQR = 0.2) in the recommended range (2–10%) to promote callus formation. Optimizing the plate shape, width, and thickness in order to keep the fixation stable while guaranteeing sufficient strain to enhance callus formation can be considered as a design criteria for future, less invasive, custom distal radius plates.Graphical abstractᅟ

Corrigendum.

The authors would like to bring attention to the error published in 'Corrective distal radius osteotomy following fracture malunion using a fixed-angle volar locking plate' 'S Opel, S Konan and E Sorene' Journal of Hand Surgery 39(4) pp. 431-435. DOI: 10.1177/1753193413497636.

Corrective distal radius osteotomy: including bilateral differences in 3-D planning

After a fracture of the distal radius, the bone segments may heal in a suboptimal position. This condition may lead to a reduced hand function, pain and finally osteoarthritis, sometimes requiring corrective surgery. Recent studies report computer-assisted 3-D planning techniques in which the mirrored contralateral unaffected radius serves as reference for planning the position of the distal radius before corrective osteotomy surgery. Bilateral asymmetry, however, may introduce length errors into this type of preoperative planning that can be compensated for by taking into account the concomitant ulnae asymmetry. This article investigates a method for planning a correction osteotomy of the distal radius, while compensating for bilateral length differences using a linear regression model that describes the relationship between radii and ulnae asymmetry. The method is evaluated quantitatively using CT scans of 20 healthy individuals, and qualitatively using CT scans of patients suffering from a malunion of the distal radius. The improved planning method reduces absolute length deviations by a factor of two and markedly reduces positioning variation, from 2.9±2.1 to 1.5±0.6mm. We expect the method to be of great value for future 3-D planning of a corrective distal radius osteotomy.

Three-dimensional Evaluation of Conventional Two-dimensional-based Corrective Distal Radius Osteotomy: A Retrospective Study: Level 3 Evidence

Three-dimensional Evaluation of Conventional Two-dimensional-based Corrective Distal Radius Osteotomy: A Retrospective Study: Level 3 Evidence

Computer-Assisted Planning and Navigation for Corrective Distal Radius Osteotomy, Based on Pre- and Intraoperative Imaging

Malunion after a distal radius fracture is very common and if symptomatic, is treated with a so-called corrective osteotomy. In a traditional distal radius osteotomy, the radius is cut at the fracture site and a wedge is inserted in the osteotomy gap to correct the distal radius pose. The standard procedure uses two orthogonal radiographs to estimate the two inclination angles and the dimensions of the wedge to be inserted into the osteotomy gap. However, optimal correction in 3-Dspace requires restoring three angles and three displacements. This paper introduces a new technique that uses preoperative planning based on 3-D images. Intraoperative 3-D imaging is also used after inserting pins with marker tools in the proximal and distal part of the radius and before the osteotomy. Positioning tools are developed to correct the distal radius pose in six degrees of freedom by navigating the pins. The method is accurate ( d 1.2 mm, ϕ 0.9°, m TRE = 1.7 mm), highly reproducible (SE (d) < 1.0 mm, SE (ϕ) ≤ 1.4°, SE (m) (TRE) = 0.7 mm), and allows intraoperative evaluation of the end result. Small incisions for pin placement and for the osteotomy render the method minimally invasive.