Volar Locking Plate Fixation Versus Closed Reduction for Distal Radial Fractures in Adults: A Systematic Review and Meta-Analysis

The Association Between Distal Screw and Articular Subsidence in the Open Treatment of Intra-articular Distal Radius Fractures

PURPOSE

This study investigated the association between volar plate screw position and postoperative radiographic outcomes in the open treatment of comminuted intra-articular distal radius fractures (DRFs). We hypothesized that increased distance from distal screws to subchondral bone is associated with early loss of reduction and articular subsidence.

METHODS

We performed a two-center retrospective review over 10 years (2013-2023) for Arbeitsgemeinschaft für Osteosynthesefragen (AO) type C3 DRF treated with open reduction and volar locking plate fixation. We measured the distance from the distal screw to the subchondral bone (STSB), ulnar variance (UV), and volar tilt (VT) on initial postfixation and 6-week postoperative nonstandardized wrist radiographs, as well as second metacarpal cortical percentage (2MCP) on initial radiographs. Plate positioning was categorized using the Soong classification, and instability was graded using the Lafontaine criteria. Immediate after surgery and 6-week follow-up radiographic measurements were compared. Multivariable logistic regression models were used to evaluate factors associated with loss of UV and VT.

RESULTS

Initially, 540 patients were identified, with 178 remaining after exclusion. We found a statistically significant difference in median STSB distance between the immediate postoperative period (2.8 mm) and the 6-week follow-up (2.0 mm). A significant difference between immediate and 6-week postoperative UV was also present. After adjusting for appropriate covariates (age, initial 2MCP, and Lafontaine's criteria for instability), patients with initial STSB >3 mm had increased odds of an increase in UV >2 mm compared to patients with <3 mm STSB. Bone density (2MCP), perioperative Soong classification, and instability were not associated with UV change.

CONCLUSIONS

In this two-center retrospective cohort of comminuted intra-articular DRFs, we found that placing the distal row of screws greater than 3mm from subchondral bone was associated with increased odds of worsening UV.

TYPE OF STUDY/LEVEL OF EVIDENCE

Prognostic IV.

Is home-based real-time video conferencing telerehabilitation as effective as conventional face-to-face rehabilitation in patients with operated for distal radius fracture? A single-blind, randomized prospective study

Objectives

This study aims to investigate whether telerehabilitation is as effective as face-to-face rehabilitation in terms of joint range of motion (ROM), edema, and functionality in patients operated for distal radius fractures (DRFs).

Patients and methods

Between May 2022 and May 2023, a total of 54 patients (8 males, 46 females; mean age: 56.8±11.6 years; range, 24 to 77 years) who underwent volar plate due to DRF with direct X-ray and computed tomography (CT) were included in this single-blind, randomized study. The patients were randomly divided into the face-to-face rehabilitation group (FFG) and telerehabilitation group (TRG). The same rehabilitation program was applied as face-to-face and Home-Based Real-Time Video Conferencing (HBRVC) telerehabilitation. Demographic data and participation times in rehabilitation sessions were recorded. A perimeter was measured using the Figure of 8 method. The ROM of the joint was measured by goniometry. Hand grip strength was measured with a hand dynamometer, and pinch grip was measured with a pinch meter. The Patient-Rated Wrist Evaluation (PRWE) and Disabilities of the Arm, Shoulder and Hand Questionnaire (Quick-DASH) were used to assess functionality.

Results

In the initial evaluation, no statistically significant difference was found between age, smoking, dominant hand, operated hand, sex, and the number of participants in rehabilitation sessions (p>0.05). Comparing the values at Week 12 and Week 2, the change in pinch meter (p=0.007) and hand grip (p=0.030) values was higher in FFG than TRG. The Quick-DASH change (p<0.001) and PRWE change (p=0.001) values were statistically significantly lower in TRG than in FFG.

Conclusion

The HBRVC telerehabilitation program seems to be as effective as face-to-face rehabilitation on joint ROM and edema in patients undergoing volar plate fixation for DRF. However, the telerehabilitation method on functionality and muscle strength is less effective than face-to-face rehabilitation.

Comparative Outcomes of Percutaneous K-Wires Versus Plate Fixation in the Treatment of Distal Radius Fractures: A Focus on Stability in Osteoporotic Patients and Both-Bone Distal End Fractures

Background Distal radius fractures (DRFs) are commonly treated with percutaneous K-wire or plate fixation. The relative efficacy and stability of these methods, particularly in osteoporotic patients and in cases involving both distal radius and ulna fractures, remain subjects of clinical debate. Objective This study aims to compare the outcomes of percutaneous K-wire fixation versus plate fixation in patients with distal end radius fractures, focusing on postoperative stability in osteoporotic conditions and both-bone distal end fractures. Methods A total of 50 patients were retrospectively analysed and divided into two groups: 25 underwent percutaneous K-wire fixation, and 25 underwent plate fixation. Outcomes measured included bone healing time, complication rates, functional recovery using the DASH score, and radiological outcomes through standard X-ray imaging. Results Preliminary data suggest that plate fixation offers better stability, especially in osteoporotic patients and cases with both-bone involvement. Complications with K-wire fixation were more frequent in these subgroups. Conclusion Plate fixation may provide superior stability and functional outcomes in treating DRFs, particularly in complex cases involving osteoporosis or bone injuries. Further research with larger sample sizes and prospective design is recommended.

Protocol for a prospective randomized trial of surgical versus conservative management for unstable fractures of the distal radius in patients aged 65 years and older

Aims

The primary aim of this study is to quantify and compare outcomes following a dorsally displaced fracture of the distal radius in elderly patients (aged ≥ 65 years) who are managed conservatively versus with surgical fixation (open reduction and internal fixation). Secondary aims are to assess and compare upper limb-specific function, health-related quality of life, wrist pain, complications, grip strength, range of motion, radiological parameters, healthcare resource use, and cost-effectiveness between the groups.

Methods

A prospectively registered (ISRCTN95922938) randomized parallel group trial will be conducted. Elderly patients meeting the inclusion criteria with a dorsally displaced distal radius facture will be randomized (1:1 ratio) to either conservative management (cast without further manipulation) or surgery. Patients will be assessed at six, 12, 26 weeks, and 52 weeks post intervention. The primary outcome measure and endpoint will be the Patient-Rated Wrist Evaluation (PRWE) at 52 weeks. In addition, the abbreviated version of the Disabilities of Arm, Shoulder and Hand questionnaire (QuickDASH), EuroQol five-dimension questionnaire, pain score (visual analogue scale 1 to 10), complications, grip strength (dynamometer), range of motion (goniometer), and radiological assessments will be undertaken. A cost-utility analysis will be performed to assess the cost-effectiveness of surgery. We aim to recruit 89 subjects per arm (total sample size 178).

Discussion

The results of this study will help guide treatment of dorsally displaced distal radial fractures in the elderly and assess whether surgery offers functional benefit to patients. This is an important finding, as the number of elderly distal radial fractures is estimated to increase in the future due to the ageing population. Evidence-based management strategies are therefore required to ensure the best outcome for the patient and to optimize the use of increasingly scarce healthcare resources.

Computer-Generated Radiographic Measurements of Distal Radius Fractures: Does It Help With Decision Making?

PURPOSE

Operative management of distal radius fractures (DRFs) has become increasingly common. Age, activity levels, and comorbid conditions are major factors influencing the treatment decision, although operative indications are still controversial. Radiographic parameters (RPs), such as radial inclination, dorsal tilt, and articular step-off, can provide objective support for effective decision making. However, manual measurement of RPs may be imprecise and subject to inconsistency. To address this problem, we developed custom software of an algorithm to automatically detect and compute 6 common RPs associated with DRF in anteroposterior and lateral radiographs. The aim in this study was to assess the effect of this software on radiographic interobserver variability among orthopedic surgeons. Our hypothesis was that precise and consistent measurement of RPs will improve radiographic interpretation variability among surgeons and, consequently, may aid in clinical decision making.

METHODS

Thirty-five radiograph series of DRFs were presented to 9 fellowship-trained hand and orthopedic trauma surgeons. Each case was presented with basic clinical information, together with plain anteroposterior and lateral radiographs. One of the 2 possible treatment options was selected: casting or open reduction with a locking plate. The survey was repeated 3 weeks later, this time with computer-generated RP measurements. Data were analyzed for interobserver and intraobserver variability for both surveys, and the interclass coefficient, kappa value, was calculated.

RESULTS

The interobserver reliability (interclass coefficient value) improved from poor to moderate, 0.35 to 0.50, with the provided RP. The average intraobserver interclass coefficient was 0.68. When participants were assessed separately according to their subspecialties (trauma and hand), improved interobserver variability was found as well.

CONCLUSIONS

Providing computed RPs to orthopedic surgeons may improve the consistency of the radiographic judgment and influence their clinical decision for the treatment of DRFs.

CLINICAL RELEVANCE

Orthopedic surgeons' consistency in the radiographic judgment of DRFs slightly improved by providing automatically calculated radiographic measurements to them.

Examining the role of ChatGPT in the management of distal radius fractures: insights into its accuracy and consistency

BACKGROUND

The optimal management of distal radius fractures remains a challenge for orthopaedic surgeons. The emergence of Artificial Intelligence (AI) and Large Language Models (LLMs), especially ChatGPT, affords significant potential in improving healthcare and research. This study aims to assess the accuracy and consistency of ChatGPT's knowledge in managing distal radius fractures, with a focus on its capability to provide information for patients and assist in the decision-making processes of orthopaedic clinicians.

METHODS

We presented ChatGPT with seven questions on distal radius fracture management over two sessions, resulting in 14 responses. These questions covered a range of topics, including patient inquiries and orthopaedic clinical decision-making. We requested references for each response and involved two orthopaedic registrars and two senior orthopaedic surgeons to evaluate response accuracy and consistency.

RESULTS

All 14 responses contained a mix of both correct and incorrect information. Among the 47 cited references, 13% were accurate, 28% appeared to be fabricated, 57% were incorrect, and 2% were correct but deemed inappropriate. Consistency was observed in 71% of the responses.

CONCLUSION

ChatGPT demonstrates significant limitations in accuracy and consistency when providing information on distal radius fractures. In its current format, it offers limited utility for patient education and clinical decision-making.

Teardrop Alignment Changes After Volar Locking Plate Fixation of Distal Radius Fractures With Volar Ulnar Fragments

BACKGROUND

We assessed factors associated with change in radiographic teardrop angle following volar locking plate (VLP) fixation of volarly displaced intra-articular distal radius fractures with volar ulnar fragments (VUF) within the ICUC database. The primary outcome was change in radiographic alignment on follow-up imaging, defined as a change in teardrop angle from intra-operative fluoroscopy greater than 5°.

METHODS

Patients with distal radius fractures treated with a VLP within the ICUC database, an international collaborative and publicly available dataset, were identified. The primary outcome was volar rim loss of reduction on follow-up imaging, defined as a change in radiographic alignment from intra-operative fluoroscopy, teardrop angle less than 50°, or loss of normal radiocarpal alignment. Secondary outcomes were final range of motion (ROM) of the affected extremity. Radiographic Soong classification was used to grade plate position. Descriptive statistics were used to assess variables' distributions. A Random Forest supervised machine learning algorithm was used to classify variable importance for predicting the primary outcome. Traditional descriptive statistics were used to compare patient, fracture, and treatment characteristics with volar rim loss of reduction. Volar rim loss of reduction and final ROM in degrees and as compared with contralateral unaffected limb were also assessed.

RESULTS

Fifty patients with volarly displaced, intra-articular distal radius fractures treated with a VLP were identified. Six patients were observed to have a volar rim loss of reduction, but none required reoperation. Volar ulnar fragment size, Soong grade 0, and postfixation axial plate position in relation to the sigmoid notch were significantly associated (P < .05) with volar rim loss of reduction. All cases of volar rim loss of reduction occurred when VUF was 10.8 mm or less.

CONCLUSIONS

The size of the VUF was the most important variable for predicting volar rim loss of reduction followed by postfixation plate position in an axial position to the sigmoid notch and the number of volar fragments in the Random Forest machine learning algorithm. There were no significant differences in ROM between patients with volar ulnar escape and those without.

The Moderating Effect of Age on Patient-Reported Benefits From Operative Management of Intra-Articular Distal Radius Fractures: A Meta-Regression Analysis

PURPOSE

The optimal treatment of intra-articular distal radius fractures in older adults (>65 years) remains uncertain despite numerous randomized trials. The purpose of this study was to examine the moderating effect of age on patient-reported benefits of volar locked plating versus cast immobilization for intra-articular distal radius fractures.

METHODS

A meta-analysis of randomized controlled trials was conducted to compare volar locked plating and cast immobilization of intra-articular distal radius fractures. Meta-regression analyses were used to examine the moderating effect of age on improvements in patient-reported outcome measures from operative treatment of distal radius factures. Modeling results were then used to estimate improvements in Disability of the Arm, Shoulder, and Hand (DASH) scores from surgery that are associated with ages ranging from 65 to 90 years.

RESULTS

Twelve randomized controlled trials including 1,806 patients were included. Age was a significant moderator of patient-reported benefits after operative treatment, with decreasing DASH score benefits from surgery associated with older ages. Model predictions show that a majority of patients aged <70 years will experience a clinically meaningful improvement in DASH scores from surgery. Patients aged 70-80 years have decreasing DASH benefits with age, but many may still experience a clinically meaningful improvement from surgery. Patients aged >80 years are unlikely to experience a clinically meaningful improvement in DASH scores with surgical management.

CONCLUSIONS

Older ages are associated with decreased benefits from surgical management with volar locked plating as compared to cast immobilization. Patients aged >80 years are unlikely to experience a clinically significant improvement with surgery. Surgeons and policymakers may use these data to counsel patients, health systems, and professional organizations on the risks and benefits of operative treatment in older adults.

TYPE OF STUDY/LEVEL OF EVIDENCE

Prognosis 1, Meta-Analysis of Randomized Controlled Trials.

Does Radiographic Alignment Correlate With Patient-Reported Functional Outcomes and Posttreatment Complications in Older Patients Treated for Wrist Fractures?

PURPOSE

Surgical treatment of distal radius fractures provides better fracture alignment than closed reduction; however, surgical treatment does not lead to better patient-reported function at 12 months. The aims of this study were to report the radiographic outcomes from the Combined Randomized and Observational Study of Surgery for Fractures In the distal Radius in the Elderly trial, investigate the association between radiographic outcomes and patient-reported function, and explore whether this association was affected by posttreatment complications and direction of malalignment.

METHODS

This study used the outcomes of the Combined Randomized and Observational Study of Surgery for Fractures In the distal Radius in the Elderly trial, which is a combined randomized and observational trial that compared volar-locking plate fixation with closed reduction and cast immobilization, to treat distal radius fractures in patients aged ≥60 years. Four radiographic outcomes (dorsal angulation, radial inclination, ulnar variance, and articular step) were reported at the following three time frames: (1) baseline, (2) after treatment, and (3) ≥6 weeks by treatment group. Secondary analysis was correlation of 12-month patient-reported function scores with 6-week radiographic measures for each of four radiographic parameters, and a subgroup analysis was conducted to investigate if this was affected by posttreatment complications. Tertiary analysis investigated if direction of malalignment affected the secondary analysis.

RESULTS

We recruited 300 participants (166 randomized and 134 observational); 113 had volar-locking plate fixation, and 187 had closed reduction. There were no between-group differences for each of the four pretreatment radiographic parameters, but there were between-treatment group differences for all four radiographic parameters apart from articular step. We found no association between patient-reported function at 12 months and each of the four radiographic parameters at 6 weeks. This lack of association was unaffected by posttreatment complications and the direction of malalignment.

CONCLUSIONS

For patients with wrist fractures aged ≥60 years, final radiographic alignment did not correlate with patient-reported function at 12 months. These findings were not affected by treatment type, and there was no association between radiographic alignment and posttreatment complications.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

Higher Soong grade predicts flexor tendon issues after volar plating of distal radius fractures - a retrospective cohort study

BACKGROUND AND PURPOSE

Soong classification is used to estimate volar locking plate prominence and evaluate the risk for flexor tendon ruptures after surgical treatment of distal radius fractures (DRFs). However, the scientific community has questioned the Soong classification due to lacking evidence. Therefore, this study aimed to evaluate the accuracy of Soong grading as a predictor for flexor tendon issues and plate removal.

PATIENTS AND METHODS

We performed a retrospective single-center review of adult distal radius fracture patients treated with a volar locking plate between 2009 and 2019. In total, 2779 patients were included in the study. The primary outcome was a flexor tendon issue (flexor tendon rupture, tendinitis, or flexor irritation), whereas plate removal was a secondary outcome. Using Soong grade 0 as a reference, we used univariable and multivariable logistic regression to calculate odds ratios (OR) with 95% confidence intervals (CI) for flexor tendon issues and plate removal.

RESULTS

In total, 756 (27%) patients were graded as Soong 0, 1679 (60%) Soong 1, and 344 (12%) Soong 2, respectively. There were 32 (1.2%) patients with flexor tendon issues, of which 4 were flexor tendon ruptures, 8 tendinitises, and 20 flexor irritations. The adjusted OR for flexor tendon issues was 4.4 (CI 1.1-39.7) for Soong grade 1 and 9.7 (CI 2.2-91.1) for Soong grade 2. The plate was removed from 167 (6.0%) patients. Soong grade 1 had a univariable OR of 1.8 (CI 1.2-2.8) for plate removal, and Soong grade 2 had an OR of 3.5. (CI 2.1-5.8), respectively.

CONCLUSION

Flexor tendon ruptures are rare complications after the volar plating of DRFs. A higher Soong grade is a risk factor for flexor tendon issues and plate removal.

TRIAL REGISTRATION

The trial was retrospectively registered.

Prospective Evaluation of Two Cohorts of Non-Operatively Treated Patients with Displaced vs. Minimally and Non-Displaced Distal Radius Fractures

BACKGROUND

Distal radius fractures (DRFs) in the elderly are common. Recently, the efficacy of operative treatment of displaced DRFs in patients above 65 years of age has been questioned and it has been suggested that non-operative treatment should be the gold standard. However, the complications and functional outcome of displaced vs. minimally and non-displaced DRFs in the elderly has not been evaluated yet. The aim of the present study was to compare non-operatively treated displaced DRFs vs. minimally and non-displaced DRFs in terms of complications, PROMs, grip strength and range of motion (ROM) after 2 weeks, 5 weeks, 6 months and 12 months.

METHODS

We used a prospective cohort study that compared patients with displaced DRFs (n = 50), i.e., >10 degrees of dorsal angulation after two reduction attempts, with patients with minimally or non-displaced DRFs after reduction. Both cohorts received the same treatment of 5 weeks of dorsal plaster casting. Complications and functional outcomes (quick disabilities of the arm, shoulder and hand (QuickDASH), patient-rated wrist/hand evaluation (PRWHE), grip strength and EQ-5D scores) were assessed after 5 weeks, 6 months and 12 months post-injury. The protocol of the VOLCON RCT and present observational study has been published (PMC6599306; clinicaltrials.gov: NCT03716661).

RESULTS

One year after 5 weeks of dorsal below-elbow casting of low-energy DRFs in patients ≥ 65 years old, we found a complication rate of 6.3% (3/48) in minimally or non-displaced DRFs and 16.6% (7/42) in displaced DRFs (p = 0.18). However, no statistically significant difference was observed in functional outcomes in terms of QuickDASH, pain, ROM, grip strength or EQ-5D scores.

DISCUSSION

In patients above 65 years of age, non-operative treatment, i.e., closed reduction and dorsal casting for 5 weeks, yielded similar complication rates and functional outcomes after 1 year regardless of whether the initial fracture was non-displaced/minimally displaced or still displaced after closed reduction. While the initial closed reduction should still be attempted in order to restore the anatomy, failure to achieve the stipulated radiological criteria may not be as important as we thought in terms of complications and functional outcome.

Surgical plating versus closed reduction for fractures in the distal radius in older patients: a cost-effectiveness analysis from the hospital perspective

BACKGROUND

Given the cost differential between surgical and non-surgical management of distal radius fractures, we aimed to evaluate the cost-effectiveness of surgical compared with non-surgical treatment of distal radius fractures in a cohort of older patients.

METHODS

This evaluation was conducted alongside the combined randomized and observational study of surgery for fractures of the distal radius in the elderly (CROSSFIRE) trial (ACTRN 12616000969460) which compared surgical (open reduction and internal fixation using volar-locking plate (VLP) fixation) and non-surgical (closed fracture reduction and cast immobilization (CR)) treatment for displaced distal radius fractures in patients ≥60 years. Cost-effectiveness was assessed from the perspective of the public hospital funder. Hospital records from a sub-sample of participants were used to estimate costs. Outcomes were patient-reported wrist pain and function questionnaire (PRWE) scores and quality adjusted life years (QALYs) calculated using the EuroQoL five-dimension five-level tool (EQ-5D-5L).

RESULTS

From 166 participants (81 surgical, 85 non-surgical), costs were obtained for 56 (29 surgical, 27 non-surgical). The mean costs for VLP fixation were Australian dollars (AUD) 6668 (95% CI $4857 to $8479) compared to AUD 3343 (95% CI $1304 to $5381) for CR. The incremental cost-effectiveness ratios (ICER) to achieve a 1-point improvement in the PRWE were AUD 375, AUD 1736 and AUD 1126 at 3, 12 and 24 months for VLP compared with CR. At 12 months, the cost effectiveness was dominated by CR (lower cost and better QoL) whereas at 24 months, the incremental cost per QALY gained by VLP was AUD 1 946 127.

CONCLUSION

In the treatment of distal radius fractures in patients ≥60 years, VLP fixation was not cost-effective compared with CR from the perspective of hospital funders.

Volar Locking Plate Compared With Combined Plating of AO Type C Distal Radius Fractures: A Randomized Controlled Study of 150 Cases

PURPOSE

The optimal way to stabilize intra-articular distal radius fractures is unclear despite recent advances in surgical management. Volar plating is the most common treatment but may not be sufficient for more complex intra-articular AO type C fractures. The purpose of this randomized controlled study was to evaluate the radiographic and clinical outcomes following surgical treatment of AO type C distal radius fractures, comparing volar with combined plating.

METHODS

In this study, 150 patients were randomized to volar locking plate (n = 75) or combined plating (n = 75) following a distal radius fracture AO type C. The 1-year follow-up included radiographic outcome (Batra score), visual analog scale pain score, hand grip strength, wrist range of motion, Patient-Rated Wrist Evaluation score, and Quick Disabilities of the Arm, Shoulder, and Hand score.

RESULTS

Overall, 147 patients (median age 61 years) completed the 1-year follow-up (73 patients with volar plate and 74 with combined plating). No difference was found in radiographic outcome between the treatment groups. The volar plate group had significantly better Patient-Rated Wrist Evaluation scores, Quick Disabilities of the Arm, Shoulder, and Hand scores, hand grip strength, visual analog scale scores during activity, and flexion, extension, ulnar and radial deviation than the combined plate group. Hardware removal was performed in 10% in the volar plate group and in 31% in the combined plate group. There was no postoperative infection in the volar plate group but 3 cases in the combined plate group.

CONCLUSIONS

In patients with complex AO type C intra-articular fractures, volar and combined plating yielded the same radiographic result. The differences in Patient-Rated Wrist Evaluation and Quick Disabilities of the Arm, Shoulder, and Hand scores between the groups did not reach the thresholds for minimal clinically important differences, suggesting similar clinical outcome. The combined plating group had a considerably higher frequency of hardware removal and postoperative infections.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic I.

Lawson A, Naylor J, Buchbinder R, Ivers R, Balogh ZJ, Smith P, Xuan W, Howard K, Vafa A, Perriman D, Mittal R, Yates P, Rieger B, Smith G, Adie S, Elkinson I, Kim W, Sungaran J, Latendresse K, Wong J, Viswanathan S, Landale K, Drobetz H, Tran P, Page R, Beattie S, Mulford J, Incoll I, Kale M, Schick B, Li T, Higgs A, Oppy A, Harris IA. Plating vs Closed Reduction for Fractures in the Distal Radius in Older Patients: A Secondary Analysis of a Randomized Clinical Trial

Importance

Distal radius fractures are common and are managed with or without surgery. Current evidence indicates surgical treatment is not superior to nonsurgical treatment at 12 months.

Objective

Does surgical treatment for displaced distal radius fractures in patients 60 years or older provide better patient-reported wrist pain and function outcomes than nonsurgical treatment at 24 months?

Design, Setting, and Participants

In this secondary analysis of a combined multicenter randomized clinical trial (RCT) and a parallel observational study, 300 patients were screened from 19 centers in Australia and New Zealand. Of these, 166 participants were randomized to surgical or nonsurgical treatment. Participants who declined randomization (n = 134) were included in the parallel observational group with the same treatment options and follow-up. Participants were followed up at 3, 12, and 24 months by a blinded assessor. The 24-month outcomes are reported herein. Data were collected from December 1, 2016, to December 31, 2020, and analyzed from February 4 to October 21, 2021.

Interventions

Surgical treatment consisting of open reduction and internal fixation using a volar-locking plate (VLP group) and nonsurgical treatment consisting of closed reduction and cast immobilization (CR group).

Main Outcomes and Measures

The primary outcome was patient-reported function using the Patient-Rated Wrist Evaluation (PRWE) questionnaire. Secondary outcomes included health-related quality of life, wrist pain, patient-reported treatment success, patient-rated bother with appearance, and posttreatment complications.

Results

Among the 166 randomized and 134 observational participants (300 participants; mean [SD] age, 71.2 [7.5] years; 269 women [89.7%]), 151 (91.0%) randomized and 118 (88.1%) observational participants were followed up at 24 months. In the RCT, no clinically important difference occurred in mean PRWE scores at 24 months (13.6 [95% CI, 9.1-18.1] points for VLP fixation vs 15.8 [95% CI, 11.3-20.2] points for CR; mean difference, 2.1 [95% CI, -4.2 to 8.5]; P = .50). There were no between-group differences in all other outcomes except for patient-reported treatment success, which favored VLP fixation (33 of 74 [44.6%] in the CR group vs 54 of 72 [75.0%] in the VLP fixation group reported very successful treatment; P = .002). Rates of posttreatment complications were generally low and similar between treatment groups, including deep infection (1 of 76 [1.3%] in the CR group vs 0 of 75 in the VLP fixation group) and complex regional pain syndrome (2 of 76 [2.6%] in the CR group vs 1 of 75 [1.3%] in the VLP fixation group). The 24-month trial outcomes were consistent with 12-month outcomes and with outcomes from the observational group.

Conclusions and Relevance

Consistent with previous reports, these findings suggest that VLP fixation may not be superior to CR for displaced distal radius fractures for patient-rated wrist function in persons 60 years or older during a 2-year period. Significantly higher patient-reported treatment success at 2 years in the VLP group may be attributable to other treatment outcomes not captured in this study.

Trial Registration

ANZCTR.org Identifier: ACTRN12616000969460.