Aims. We introduced a self-care pathway for minimally displaced distal radius fractures, which involved the patient being discharged from a Virtual Fracture Clinic (VFC) without a physical review and being provided with written instructions on how to remove their own cast or splint at home, plus advice on exercises and return to function. Methods. All patients managed via this protocol between March and October 2020 were contacted by a medical secretary at a minimum of six months post-injury. The patients were asked to complete the Patient-Rated Wrist Evaluation (PRWE), a satisfaction questionnaire, advise if they had required surgery and/or contacted any health professional, and were also asked for any recommendations on how to improve the service. A review with a hand surgeon was organized if required, and a cost analysis was also conducted. Results. Overall 71/101 patients completed the telephone consultation; no patients required surgery, and the mean and median PRWE scores were 23.9/100 (SD 24.9) and 17.0/100 (interquartile range (IQR) 0 to 40), respectively. Mean patient satisfaction with treatment was 34.3/40 (SD 9.2), and 65 patients (92%) were satisfied or highly satisfied. In total there were 16 contact calls, 12 requests for a consultant review, no formal complaints, and 15 minor adjustment suggestions to improve patient experience. A relationship was found between intra-articular injuries and lower patient satisfaction scores (p = 0.025), however no relationship was found between PRWE scores and the nature of the fracture. Also, no relationship was found between the type of immobilization and the functional outcome or patient satisfaction. Cost analysis of the self-care pathway V traditional pathway showed a cost savings of over £13,500 per year with the new self-care model compared to the traditional model. Conclusion. Our study supports a VFC self-care pathway for patients with minimally displaced distal radius fractures. The pathway provides a good level of patient satisfaction and function. To improve the service, we will make minor amendments to our patient information sheet. Cite this article: Bone Jt Open 2022;3(9):726–732

Aims. The aims of this study were to identify means to quantify coronal plane displacement associated with distal radius fractures (DRFs), and to understand their relationship to radial inclination (RI). Methods. From posteroanterior digital radiographs of healed DRFs in 398 female patients aged 70 years or older, and 32 unfractured control wrists, the relationships of RI, quantifiably, to four linear measurements made perpendicular to reference distal radial shaft (DRS) and ulnar shaft (DUS) axes were analyzed: 1) DRS to radial aspect of ulnar head (DRS-U); 2) DUS to volar-ulnar corner of distal radius (DUS-R); 3) DRS to proximal capitate (DRS-PC); and 4) DRS to DUS (interaxis distance, IAD); and, qualitatively, to the distal ulnar fracture, and its intersection with the DUS axis. Results. In the study (fracture) and control groups, respectively, the mean values were: RI, 17.2° (SD 7.2°; -7° to 35°) and 25.6° (SD 2.6°; 21° to 30°); DRS-U, 13.5 mm (SD 1.7; 4.9 to 20.8) and 15.3 mm (SD 0.72; 13.8 to 16.3); DUS-R, 13.4 mm (SD 2.1; 4.8 to 18.5) and 12.0 mm (SD 0.99; 9.7 to 13.9); DRS-PC (positive value radial to DRS, negative value ulnar), 0.14 mm (SD 5.4; -10.9 to 22.7) and -6.1 mm (SD 1.6; -10.6 to -2.3); and IAD, 25.3 mm (SD 2.5; 17.6 to 31.1) and 27.1 mm (SD 1.5; 24.5 to 31.0). All means were significantly different between the study and control groups. RI correlated strongly with DRS-PC. Ulnar styloid fracture intersection with the DUS axis, reflective of ulnar translation of both radial and ulnar shafts, was associated with significantly lower RI. Conclusion. After DRF, the relationship of the proximal capitate to the DRS axis in the coronal plane correlates with the final radial inclination. Additionally, ulnar styloid intersection with the DUS axis is associated with even lower radial inclination. DRF reduction should seek to restore the normal coronal relationship of both radial and ulnar shafts to their distal counterparts. Cite this article: Bone Joint J 2023;105-B(6):688–695

Aims. Fractures of the distal radius are common, and form a considerable proportion of the trauma workload. We conducted a study to examine the patterns of injury and treatment for adult patients presenting with distal radius fractures to a major trauma centre serving an urban population. Methods. We undertook a retrospective cohort study to identify all patients treated at our major trauma centre for a distal radius fracture between 1 June 2018 and 1 May 2021. We reviewed the medical records and imaging for each patient to examine patterns of injury and treatment. We undertook a binomial logistic regression to produce a predictive model for operative fixation or inpatient admission. Results. Overall, 571 fractures of the distal radius were treated at our centre during the study period. A total of 146 (26%) patients required an inpatient admission, and 385 surgical procedures for fractures of the distal radius were recorded between June 2018 and May 2021. The most common mechanism of injury was a fall from a height of one metre or less. Of the total fractures, 59% (n = 337) were treated nonoperatively, and of those patients treated with surgery, locked anterior-plate fixation was the preferred technique (79%; n = 180). Conclusion. The epidemiology of distal radius fractures treated at our major trauma centre replicated the classical bimodal distribution described in the literature. Patient age, open fractures, and fracture classification were factors correlated with the decision to treat the fracture operatively. While most fractures were treated nonoperatively, locked anterior-plate fixation remains the predominant method of fixation for fractures of the distal radius; this is despite questions and continued debate about the best method of surgical fixation for these injuries. Cite this article: Bone Jt Open 2022;3(8):623–627

Aims. Following cast removal for nonoperatively treated distal radius fractures, rehabilitation facilitated by advice leaflet and advice video were compared to a course of face-to-face therapy. Methods. Adults with an isolated, nonoperatively treated distal radius fracture were included at six weeks post-cast removal. Participants were randomized to delivery of rehabilitation interventions in one of three ways: an advice leaflet; an advice video; or face-to-face therapy session(s). The primary outcome measure was the Disabilities of the Arm, Shoulder and Hand (DASH) score at six weeks post intervention and secondary outcome measures included DASH at one year, DASH work subscale, grip strength, and range of motion at six weeks and one year. Results. A total of 116 (97%) of 120 enrolled participants commenced treatment. Of those, 21 were lost to follow-up, resulting in 30 participants in the advice leaflet, 32 in the advice video, and 33 face-to-face therapy arms, respectively at six weeks of follow-up. There was no significant difference between the treatment groups in the DASH at six weeks (advice leaflet vs face-to-face therapy, p = 0.69; advice video vs face-to-face therapy, p = 0.56; advice leaflet vs advice video, p = 0.37; advice leaflet vs advice video vs face-to-face therapy, p = 0.63). At six weeks, there were no differences in any secondary outcome measures except for the DASH work subscale, where face-to-face therapy conferred benefit over advice leaflet (p = 0.01). Conclusion. Following cast removal for nonoperatively treated distal radius fractures, offering an advice leaflet or advice video for rehabilitation gives equivalent patient-reported outcomes to a course of face-to-face therapy. Cite this article: Bone Joint J 2021;103-B(6):1033–1039

Aims. The purpose was to compare operative treatment with a volar plate and nonoperative treatment of displaced distal radius fractures in patients aged 65 years and over in a cost-effectiveness analysis. Methods. A cost-utility analysis was performed alongside a randomized controlled trial. A total of 50 patients were randomized to each group. We prospectively collected data on resource use during the first year post-fracture, and estimated costs of initial treatment, further operations, physiotherapy, home nursing, and production loss. Health-related quality of life was based on the Euro-QoL five-dimension, five-level (EQ-5D-5L) utility index, and quality-adjusted life-years (QALYs) were calculated. Results. The mean QALYs were 0.05 higher in the operative group during the first 12 months (p = 0.260). The healthcare provider costs were €1,533 higher per patient in the operative group: €3,589 in the operative group and 2,056 in the nonoperative group. With a suggested willingness to pay of €27,500 per QALY there was a 45% chance for operative treatment to be cost-effective. For both groups, the main costs were related to the primary treatment. The primary surgery was the main driver of the difference between the groups. The costs related to loss of production were high in both groups, despite high rates of retirement. Retirement rate was unevenly distributed between the groups and was not included in the analysis. Conclusion. Surgical treatment was not cost-effective in patients aged 65 years and older compared to nonoperative treatment of displaced distal radius fractures in a healthcare perspective. Costs related to loss of production might change this in the future if the retirement age increases. Level of evidence: II. Cite this article: Bone Jt Open 2021;2(12):1027–1034

Aims. To compare operative and nonoperative treatment for displaced distal radius fractures in patients aged over 65 years. Methods. A total of 100 patients were randomized in this non-inferiority trial, comparing cast immobilization with operation with a volar locking plate. Patients with displaced AO/OTA A and C fractures were eligible if one of the following were found after initial closed reduction: 1) dorsal angulation > 10°; 2) ulnar variance > 3 mm; or 3) intra-articular step-off > 2 mm. Primary outcome measure was the abbreviated version of the Disabilities of the Arm, Shoulder and Hand questionnaire (QuickDASH) after 12 months. Secondary outcome measures were the Patient-Rated Wrist and Hand Evaluation (PRWHE), EuroQol-5 dimensions 5-level questionnaire (EQ-5D-5L), range of motion (ROM), grip strength, “satisfaction with wrist function” (score 0 to 10), and complications. Results. In all, 89 women and 11 men were included. Mean age was 74 years (65 to 91). Nonoperative treatment was non-inferior to operation with a five-point difference in median QuickDASH after 12 months (p = 0.206). After three and six months QuickDASH favoured the operative group (p = 0.010 and 0.030). Median values for PRWHE were 19 (interquartile range (IRQ) 10 to 32) in the operative group versus ten (IQR 1 to 31) in the nonoperative group at three months (p = 0.064), nine (IQR 2 to 20) versus five (IQR 0 to 13) (p = 0.020) at six months, and two (IQR 0 to 12) versus zero (IQR 0 to 8) (p = 0.019) after 12 months. Range of motion was similar between the groups. The EQ-5D-5L index score was better (mean difference 0.07) in the operative group at three and 12 months (p = 0.008 and 0.020). The complication rate was similar (p = 0.220). The operated patients were more satisfied with wrist function (median 8 (IQR 6 to 9) vs 6 (IQR 5 to 7) at three months, p = 0.002; 9 (IQR 7 to 9) vs 8 (IQR 6 to 8) at six months, p = 0.002; and 10 (IQR 8 to 10) vs 8 (IQR 7 to 9) at 12 months, p < 0.001). Conclusion. Nonoperative treatment was non-inferior to operative treatment based on QuickDASH after one year. Patients in the operative group had a faster recovery and were more satisfied with wrist function. Results from previous trials comparing operative and nonoperative treatment for displaced distal radius fractures in the elderly vary between favouring the operative group and showing similar results between the treatments. This randomized trial suggests that most elderly patients may be treated nonoperatively. Cite this article: Bone Joint J 2021;103-B(2):247–255

Magnetic resonance imaging (MRI) validation of a novel method of assessing Distal Radial Fracture (DRF) reduction using the hypothesised constant relationship between the dorsal radial cortex (DC) and the superior pole of the lunate (SL).

MRI scans of 28 normal wrists were examined. Scans included the distal third of the radius to the proximal carpal row. Beginning 5cm proximal to the distal radius articular surface, a line was superimposed upon the DC extending distally through the metaphyseal flare.

Lunate height (LH) and distance from the DC line to the SL (DC-SL) were measured at 5-degree rotational increments around the radial shaft central axis to a total of 30 degrees of supination and pronation (S+P). The DC-SL/LH ratio was compared to 0 degrees (anatomical lateral) using the two-tailed paired student t-test.

There was no significant difference in DC-SL:LH between 0 degrees of rotation and any 5-degree increment up to 30 degrees of S+P (lowest p=0.075). The DC line lay consistently dorsal to the SL.

A constant DC-SL relationship exists with up to 30 degrees of S+P. This reference can be quickly and accurately used to assess DRF reduction in poorly-taken films with malrotation up to 30 degrees from anatomical lateral. Research comparing DC-SL distance with volar tilt to assess DRF reduction is needed.

The aims of this study in relation to distal radius fractures were to determine (1) the floor and ceiling effects for the QuickDASH and PRWE, (2) the floor and ceiling effects when defined to be within the minimal clinically important difference (MCID) of the minimal or maximal scores, (3) the degree to which patients with a floor or ceiling effect felt that their wrist was ‘normal’, and (4) patent factors associated with a floor or ceiling effect. A retrospective cohort study of patients sustaining a distal radius fracture during a single year was undertaken. Outcome measures included the QuickDASH, PRWE, EQ-5D-3L and normal wrist score. There were 526 patients with a mean age of 65yrs and 77% were female. Most patients were managed non-operatively (73%, n=385). The mean follow-up was 4.8yrs. A ceiling effect was observed for both the QuickDASH (22.3%) and PRWE (28.5%). When defined to be within the MCID of the best score, the effect increased to 62.8% for the QuickDASH and 60% for PRWE. Patients that achieved the best functional outcome according to the QuickDASH and PRWE felt their wrist was only 91% and 92% normal, respectively. Sex (p=0.000), age (p=0.000), dominant wrist injury (p=0.006 for QuickDASH and p=0.038 for PRWE), fracture type (p=0.015), and a better health-related quality of life (p=0.000) were independently associated with achieving a ceiling score. The QuickDASH and PRWE demonstrated ceiling effects following a distal radius fracture. Patients achieving ceiling scores did not consider their wrist to be ‘normal’ for them

The aim was to predict the number and incidence of distal radius fractures in Scotland over the next two decades according to age group, categorised into under 65yrs(65) and 65yrs and older (65), and estimate the potential increased operative burden. The number of distal radius fractures in Scotland was isolated from the Global Burden of Disease database and this was used, in addition to historic population data and published population estimates, to create a multivariable model allowing incorporation of age group, sex and time. A Negative Binomial distribution was used to predict incidence in 2030 and 2040 and calculate projected number of fractures. A 20.4% operative intervention rate was assumed (local data). In terms of number of fractures, there was a projected 61% rise in the 65 group with an overall increase of 2099 fractures per year from 3417 in 2020 (95% confidence interval (CI) 2960 – 3463) to 5516 in 2040 (95% CI 4155 – 5675). This was associated with 428 additional operative interventions per year for those 65yrs. The projected increase between 2020 and 2040 was similar in both sexes (60% in females, 63% in males), however the absolute increase in fracture number was higher in females. There was a 4% projected fall in the number of fractures in those 65. Incidence of distal radius fractures is expected to considerably increase over the next two decades due to a projected increase in the number of fractures in the elderly. This has implications for associated morbidity and healthcare resource use

The primary aim was to determine the rate of complications and re-intervention rate in a consecutive series of operatively managed distal radius fractures. Data was retrospectively collected on 304 adult distal radius fractures treated at our institution in a year. Acute unstable displaced distal radius fractures surgically managed within 28 days of injury were included. Demographic and injury data, as well as details of complications and their subsequent management were recorded. There were 304 fractures in 297 patients. The mean age was 57yrs and 74% were female. Most patients were managed with open reduction and internal fixation (ORIF) (n=278, 91%), with 6% (n=17) managed with manipulation and Kirschner wires and 3% (n=9) with bridging external fixation. Twenty-seven percent (n=81) encountered a post-operative complication. Complex regional pain syndrome was most common (5%, n=14), followed by loss of reduction (4%). Ten patients (3%) had a superficial wound infection managed with oral antibiotics. Deep infection occurred in one patient. Fourteen percent (n=42) required re-operation. The most common indication was removal of metalwork (n=27), followed by carpal tunnel decompression (n=4) and revision ORIF (n=4). Increasing age (p=0.02), male gender (p=0.02) and high energy mechanism of injury (p<0.001) were associated with developing a complication. High energy mechanism was the only factor associated with re-operation (p<0.001). This study has documented the complication and re-intervention rates following distal radius fracture fixation. Given the increased risk of complications and the positive outcomes reported in the literature, non-operative management of displaced fractures should be considered in older patients

Introduction. Distal radius fractures are one of the most common injuries attended in hospitals. Throughout the years the treatment has change from simple cast to ORIF. Objectives. To compare the functional and radiographic results in the treatment of the distal intrarticular radial fractures treated by volar buttress plate (T plate AO® Synthes, Oberdorf, Suiza) and fixed volar angle locking plate (DVR® Depuy, Warsaw, Indiana, USA). Material and Methods. We performed a comparative retrospective study between two series of patients treated by fixed volar angle locking plate (40 patients) or volar buttress plate (36 patients). Distal radius fractures were classified by the AO/ASIF Müller classification after X-ray study in two views (Anteroposterios and lateral views), surgical treatment was indicated by the type of fracture (unstable fractures) and open fractures. Demographic information was gathered, injury mechanism and postoperatory complications. The minimal follow-up was 10 months. We performed clinical and radiographic evaluations before surgery, postoperatory, to 3 months and at the end of the follow-up (Palmar tilt, radial inclination, radial height and the radioulnar index were measured). Lidström's and Quick Dash scale, by means of telephonic survey, were used for the functional evaluation. Results. The time from fracture to surgery was on average 3.74 days in the group of DVR ® plates and 1.69 days for the group treated with T buttress plates. Henry's approach was realized in every case and the average time spent in surgery was 74 minutes for patients treated with T buttress plate and 80 minutes for patients treated with plate DVR®. In some cases K wires had to be used in 9 cases in the DVR® group and 7 in the other group. DVR® group obtained better results in radiological evaluation except in the radial inclination. In the Quick Dash scale, conducted a telephone survey, the average for the DVR® group was 26.40 (CI: 13.6 to 81.8) and 33.37 (CI: 10.2–90) for the group of T buttress plate (p=0.055). Conclusion. The potential advantages of ORIF in the distal radius fractures are low complication rate, stable subchondral fixation and early active movement of the wrist in the postoperative period. The disadvantages are a high cost, greater complexity and surgical exposure. Locking plates were designed to prevent postoperative collapse of the fracture also allows a better fix system in osteoporotic bone. Both types of plates obtained good results radiological and functional at the end of follow-up but we have obtained better results in the patients treated with locking plates

Introduction. The flexor carpi radialis (FCR) approach is widely used for volar plate fixation of distal radius fractures. However, patients sometimes complain of postoperative numbness at the thenar eminence. We propose this is derived from injury to the palmar cutaneous branch of the median nerve (PCBm). Materials and methods. From March 2010 to March 2012, we performed 10 operations of volar plate fixation for distal radius fractures using the FCR approach. We detected the PCBm intraoperatively and investigated the anatomy. Results. On average, the PCBm arises from the median nerve 44 mm proximal to the distal wrist crease. It arose from the radial side of the median nerve in nine cases and the ulnar side in one case. In all cases, it ran between the FCR and the palmaris longus tendon under the antebrachial fascia. Nerve supply to the FCR sheath was not observed in the field of operation. Discussion. Numerous studies report the necessity to preserve the PCBm during carpal tunnel release surgery, but the relationship between the FCR approach and the PCBm has not been emphasized. Our results generally agree with past reports on PCBm anatomy. In our experience, the FCR tendon should be retracted to the ulnar side to prevent PCBm injury. If the FCR tendon is retracted radially, the PCBm should be detected and retracted gently. Some studies report that the PCBm joins the FCR sheath at the level of the distal wrist crease. Thus, the distal sheath incision should not be extended blindly

Aims

Patient decision aids have previously demonstrated an improvement in the quality of the informed consent process. This study assessed the effectiveness of detailed written patient information, compared to standard verbal consent, in improving postoperative recall in adult orthopaedic trauma patients.

Aims

The purpose of this study was to develop a convolutional neural network (CNN) for fracture detection, classification, and identification of greater tuberosity displacement ≥ 1 cm, neck-shaft angle (NSA) ≤ 100°, shaft translation, and articular fracture involvement, on plain radiographs.

Background. Distal radial fractures in the elderly population have been traditionally managed by closed techniques, primarily due to their poor bone quality and low functional demands. Since the introduction of the volar locking plate (VLP), which provides a good fixation in osteoporotic bones, there maybe an increased use of open reduction and internal fixation (ORIF) in the elderly population. Aim. We aimed to determine the changes in the management of these fractures in Scotland, and whether this differs between specialist regional centres and district general centres. Patients and Methods. We retrospectively analysed distal radius fractures, in patients aged over 70 years in the period between 1989 and 2008. Data were obtained from the national statistical centre based on admission code and from discharge summaries. Data included patient demographics and treatment method; either open reduction and internal fixation (ORIF), Kirschner wire, or manipulation under anaesthetic (MUA). Results. Incidence of distal radius fractures has increased by 75% from 1989 to 2008. In 2003 there were 94 (13.6%) ORIF, 109 (15.1%) K-wire and 492 (71.3%) MUA. In 2008 there were 131 (22.5%) ORIF, 81 (14.2%) K-wire and 361 (63.3%) MUA. There has been a 34% increase in the number of ORIF and a 26% decrease in K-wire procedures. There is a difference in the proportion treated by ORIF in university hospital and district general hospital trusts; 11.8% more fractures are treated by ORIF in university hospitals (p<0.5). Conclusion. There has been an increasing tend to use VLP in the place of K wire fixation. However a vast majority of elderly patients are still treated primarily with MUA. There is an increased tendency to use VLP in university hospital trusts than in distict general hospitals. This may be a reflection of the availability and preferences of specialist orthopaedic hand surgeons

The aim of this study was to identify psychosocial factors associated with pain intensity and disability following distal radius fracture (DRF). We prospectively followed up 216 adult patients with DRF for 9 months. Demographics, injury and treatment details and psychological measures (Hospital Anxiety and Depression Score (HADS), Pain Catastrophising Scale (PCS), Post Traumatic Stress Disorder Checklist – Civilian (PCL-C), Tampa Scale for Kinesiophobia (TSK), Illness Perception Questionnaire Brief (IPQB), General Self-efficacy Scale (GSES) and Recovery Locus of Control (RLOC)) were collected at enrolment. Multivariable linear regression was used to identify factors associated with DASH and Likert pain score. Ten week DASH was associated with age (β-coefficient (β)= 0.3, p < 0.001), deprivation score (β=0.2, p = 0.014), nerve injury (β=0.1, p = 0.014), HADS depression (β=0.2, p = 0.008), IPQB (β=0.2, p = 0.001) and RLOC (β= −0.1, p = 0.031). Nine month DASH was associated with age (β=0.1, p = 0.04), deprivation score (β=0.4, p = 0.014), number of medical comorbidities (β=0.1, p = 0.034), radial shortening (β=0.1, p = 0.035), HADS depression (β=0.2, p = 0.015) and RLOC (β= −0.1, p = 0.027). Ten week pain score was associated with deprivation score (β=0.1, p = 0.049) and IPQB (β=0.3, p < 0.001). Pain score at 9 months was associated with number of medical comorbidities (β=0.1, p = 0.047). Psychosocial factors are more strongly associated with pain and disability than injury or treatment characteristics after DRF. Identifying and treating these factors could enhance recovery

Aims and objectives. The aim of this study was to assess the radiographic outcome by using Lindstrom grading for the management of Malone 2A and 2B fractures by 3 different methods of treatment. The three different methods included manipulation under anaesthesia, k-wire fixation and open reduction internal fixation. Methods and materials. Between March 2006 and February 2007, 62 intra-articular distal radius fractures were retrospectively selected. 31 patients including 21 females and 9 males with an average age of 62 years were classified as Malone 2A fractures and 32 patients including 18 females and 14 males with an average age of 64.5 years were classified as Malone 2B fractures. 18 patients had manipulation under anaesthetic (MUA) and immobilisation in a plaster of paris (POP) cast, 27 patients had manipulation and k-wire fixation and 17 patients had open reduction internal fixation (ORIF) of the fractures. All the patients had radiographic assessment at 6 weeks post op using Lindstrom grading. Grade 1 and 2 were considered acceptable, grade 3 and 4 were considered unacceptable. Results. In Malone 2A fractures the acceptable number of fractures were as follows −5/10 (50%) of the MUA group, 6/13(46.1%) in the k wire fixation group and 6/7 (85.7%) in the ORIF group. In Malone 2B fractures, the acceptable numbers were - nil in MUA group, 4/14 (28.6%) in k wire fixation group and 8/10 (80%) in the ORIF group. Conclusion. MUA and k wire fixation were not a good option for Malone 2B fractures as these fractures showed the best outcome with 80% acceptable results after ORIF. Malone classification can be used as a reliable predictor for deciding the treatment method for intra articular distal radius fractures as seen by the high acceptable results after ORIF for both type 2A and 2B fractures

This paper investigates whether cortical comminution and intra-articular involvement can predict displacement in distal radius fractures by using a classification that includes volar comminution as a separate parameter. A prospective multicentre study involving non-operative treatment of distal radius fractures in 387 patients aged between 15 and 74 years (398 fractures) was conducted. The presence of cortical comminution and intra-articular involvement according to the Buttazzoni classification is described. Minimally displaced fractures were treated with immobilisation in a cast while displaced fractures underwent closed reduction with subsequent immobilisation. Radiographs were obtained after reduction, at 10 to 14 days and after union. The outcome measure was re-displacement or union. In fractures with volar comminution (Buttazzoni type 4), 96% (53 of 55) displaced. In intra-articular fractures without volar comminution (Buttazzoni 3), 72% (84 of 117) displaced. In extra-articular fractures with isolated dorsal comminution (Buttazzoni 2), 73% (106 of 145) displaced while in non-comminuted fractures (Buttazzoni 1), 16 % (13 of 81 ) displaced. A total of 32% (53 of 165) of initially minimally displaced fractures later displaced. All of the initially displaced volarly comminuted fractures re-displaced. Displacement occurred in 31% (63 of 205) of fractures that were still in good alignment after 10 to 14 days. . Regression analysis showed that volar and dorsal comminution predicted later displacement, while intra-articular involvement did not predict displacement. Volar comminution was the strongest predictor of displacement. Cite this article: Bone Joint J 2014;96-B:978–83

Distal radius fractures are typical and frequent fracture of elderly woman with reduced bone density. Thus implant fixation is more difficult. Dorsal and radial comminution are frequent in these patients and so reduction and angle stable osteosynthesis needed. The angle stable plate, often also multidirectional is today the most common stabilisation device. Because of the introduction of bulky and bended implants as the Micronail or Targon DR wich require difficult opening of the bone with awles we decided to test the XS radius nail witch is a 4,5mm or 3,5mm straight nail and witch is introduced after guide wire placement and over drilling with a canulated drill of the same diameter. It is locked parallel to the joint in 3 different directions with angular stability with threaded wires. Methods 16 radius sawbones were osteotomised corresponding to a A3 Fracture and stabilised with a angle stable plate (8) and XS nail (8). 1000 alternating load cycles from 20–200N were performed and the deformation was registered. Also a FE analysis with the MSC Patran/Marc softwere were performed. Also the calculated deformation in the FE study was 20% lower. Also deformation amplitude was lower with 0.31mm compared to 0.42mm in the plate group. The differences however were not significant. Both devices show good biomechanical results. The XS nail has the advantage of mainly intraosseus position, simple operation technique with introduction over a guide wire from the proc. Styloideus radii and over drilling with a canulated drill of the same size. The exposure of the N rad. superf. must be performed. First clinical evaluation is presented. Due to the results we developed a anatomically adapted XS radius nail. The results of the first 100 patients are presented. Conclusions. Both angular stable plate and XSR nail can be used in unstable distal radius fracture fixation. The mainly intraosseus position of the nail and saving of the pronator quadratus as well as lower deformation are in favour of the XSR nail. However frontal plane fractures and very comminuted fractures are better treated with a multidirectional locking plate due to technical reasones so that we use the XSR nail mainly in A3 and C1 fractures

Objectives. To investigate the differences of open reduction and internal fixation (ORIF) of complex AO Type C distal radius fractures between two different models of a single implant type. Methods. A total of 136 patients who received either a 2.4 mm (n = 61) or 3.5 mm (n = 75) distal radius locking compression plate (LCP DR) using a volar approach were followed over two years. The main outcome measurements included motion, grip strength, pain, and the scores of Gartland and Werley, the Short-Form 36 (SF-36) and the Disabilities of the Arm, Shoulder, and Hand (DASH). Differences between the treatment groups were evaluated using regression analysis and the likelihood ratio test with significance based on the Bonferroni corrected p-value of < 0.003. Results. The groups were similar with respect to baseline and injury characteristics as well as general surgical details. The risk of experiencing a complication after ORIF with a LCP DR 2.4 mm was 18% (n = 11) compared with 11% (n = 8) after receiving a LCP DR 3.5 mm (p = 0.45). Wrist function was also similar between the cohorts based on the mean ranges of movement (all p > 0.052) and grip strength measurements relative to the contralateral healthy side (p = 0.583). In addition, DASH and SF-36 component scores as well as pain were not significantly different between the treatment groups throughout the two-year period (all p ≥ 0.005). No patient from either treatment group had a step-off > 2 mm. Conclusions. Differences in plate design do not influence the overall final outcome of fracture fixation using LCP.