The February 2024 Wrist & Hand Roundup. 360. looks at: Occupational therapy for thumb carpometacarpal osteoarthritis?; Age and patient-reported benefits from operative management of intra-articular distal radius fractures: a meta-regression analysis; Long-term outcomes of nonsurgical treatment of thumb carpometacarpal osteoarthritis: a cohort study; Semi-occlusive dressing versus surgery in fingertip injuries: a randomized controlled trial; Re-fracture in partial union of the scaphoid waist?; The WALANT distal radius fracture: a systematic review; Endoscopic carpal tunnel release with or without hand therapy?; Ten-year trends in the level of evidence in hand surgery

Aims

The aim of this study was to identify the origin and development of the threshold for surgical intervention, highlight the consequences of residual displacement, and justify the importance of accurate measurement.

Aims

To compare operative and nonoperative treatment for displaced distal radius fractures in patients aged over 65 years.

Distal radius fractures have an incidence rate of 17.5% among all fractures. Their treatment in case of comminution, commonly managed by volar locking plates, is still challenging. Variable-angle screw technology could counteract these challenges. Additionally, combined volar and dorsal plate fixation is valuable for treatment of complex fractures at the distal radius. Currently, biomechanical investigation of the competency of supplemental dorsal plating is scant. The aim of this study was to investigate the biomechanical competency of double-plated distal radius fractures in comparison to volar locking plate fixation. Complex intra-articular distal radius fractures AO/OTA 23-C 2.1 and C 3.1 were created by means of osteotomies, simulating dorsal defect with comminution of the lunate facet in 30 artificial radii, assigned to 3 study groups with 10 specimens in each. The styloid process of each radius was separated from the shaft and the other articular fragments. In group 1, the lunate facet was divided to 3 equally-sized fragments. In contrast, the lunate in group 2 was split in a smaller dorsal and a larger volar fragment, whereas in group 3 was divided in 2 equal fragments. Following fracture reduction, each specimen was first instrumented with a volar locking plate and non-destructive quasi-static biomechanical testing under axial loading was performed in specimen's inclination of 40° flexion, 40° extension and 0° neutral position. Mediolateral radiographs were taken under 100 N loads in flexion and extension, as well as under 150 N loads in neutral position. Subsequently, all biomechanical tests were repeated after supplemental dorsal locking plate fixation of all specimens. Based on machine and radiographic data, stiffness and angular displacement between the shaft and lunate facet were determined. Stiffness in neutral position (N/mm) without/with dorsal plating was on average 164.3/166, 158.5/222.5 and 181.5/207.6 in groups 1–3. It increased significantly after supplementary dorsal plating in groups 2 and 3. Predominantly, from biomechanical perspective supplemental dorsal locked plating increases fixation stability of unstable distal radius fractures after volar locked plating. However, its effect depends on the fracture pattern at the distal radius

Background. Distal radius fractures are among the most common fractures encountered in the clinical setting, with a reported incidence of 17%. Of these common fractures, it has been said 60% are intra-articular in nature. Intra-articular or unstable and comminuted fractures represent severe, high energy injuries. There is a considerable amount of controversy as to which fixation method is superior. Even the OA concludes; “comparing external fixation (EF) with open reduction and internal fixation (ORIF) for the treatment of intra-articular distal radius fractures described no consistent benefit of one treatment over another”. There are only a few randomised control trials that go beyond one year to cover the long-term follow up (over two years). There has yet to be a meta-analysis of the long-term outcomes of open reduction internal fixation (ORIF) versus external fixation. We aim to show from this meta-analysis if there is any significant difference in the outcomes of either fixation method in the long-term. Method. We pooled the data of all available randomised control trials that compare the long-term outcomes of ORIF against external fixation of distal radius fractures. We completed a systematic review of PubMed, embase, MEDLINE and the Cochrane Library, from inception to December 2014. We then preformed our meta-analysis using RevMan 5.3 software. Results. We did not determine any significant difference in long-term outcomes when comparing ORIF with external fixation. However 6 of the 11 outcomes supported ORIF. Conclusion. There is no significant difference in the long-term outcomes between ORIF and external fixation. No meta analysis to date, short or long term, has been able to determine which is the superior, yet the future treatment of these fractures looks to be ORIF in the form of volar plating. We recommend before this becomes universal, further research must be carried out. Level of Evidence. Level 1. Disclosures. this was the first author's, Dr CJC Gouk, Masters dissertation at the University of Edinburgh. No financial support was received

Background. Distal radius fractures are common injuries but no clear consensus regarding optimal management of unstable fractures exists. Open reduction and internal fixation with volar plates is an increasingly popular but the associated complication rate can be 10%. Intramedullary nails are an alternative offering the potential advantages of reduced risk of tendon injury and intra-articular screw penetration. This article systematically reviews the published literature evaluating the biomechanics, outcomes and complications of intramedullary nails in the management of distal radius fractures. Methods. A systematic review of Medline and EMBASE databases was performed for studies reporting the biomechanics, functional outcome or complications following intramedullary nailing of distal radius fractures. Critical appraisal was performed with respect to validated quality assessment scales. Results. 16 studies were included for review. The biomechanical studies concluded that intramedullary nails had at least comparable strength to locking plates. The clinical studies reported that IM nailing was associated with comparable ROM, functional outcome and grip strength to alternative fixation techniques. However, the mean complication rate was 17.6% (range 0 to 50%) with the most common complication being neurapraxia of the superficial radial nerve in 9.5%. Conclusion. This systematic review of pooled data from published series has shown that IM nailing can give comparable clinical results to current treatment modalities in extra-articular and simple intra-articular distal radius fractures. However the evidence is insufficient to determine whether IM nailing has any clinically important advantage over well-established alternatives. The complication rate reported is higher than that in contemporary studies for volar plating and this raises concerns about the role of this technique particularly when comparative studies have failed to show any major advantage to its use. Further adequately powered RCTs comparing the technique to both volar plates and percutaneous wire fixation are required. Level of evidence. IIa – systematic review of cohort studies. Conflict of Interests. The authors confirm that they have no relevant financial disclosures or conflicts of interest. Ethical approval was not sought as this was a systematic review

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

There is ongoing debate regarding the optimal management of displaced distal radius fractures in the elderly. The aim of this review was to compare outcomes of operatively versus non-operatively managed displaced extra-articular or undisplaced intra-articular distal radius fractures in patients 65 years and older. All patients over the age of 65 years with displaced extra-articular or undisplaced intra-articular fractures seen in Tauranga Hospital between 1. st. January 2009 and 31st December 2009 were included in the study. Patients from out of town, with incomplete radiographs or who had since passed away were excluded as were patients with comminuted intra-articular or undisplaced/minimally displaced extra-articular fractures. Patients attended follow-up where clinical assessment was carried out by a single Hand Therapist who was blinded to the side of injury and previous management, completed the Patient Rated Wrist Evaluation (PRWE) and DASH questionnaires and a visual analogue satisfaction score. There were 91 distal radius fractures in patients 65 years and older seen in Tauranga Hospital over this 1 year period. 44 were excluded leaving 47 patients. 6 declined follow-up and 5 failed to attend. 36 patients (3 males, 33 females, average age 74.7 years) were included in the study – 23 had been treated non-operatively with casting +/− manipulation while the remaining 13 patients had undergone open reduction and internal fixation. Comparing the injured with the uninjured wrist in the operatively managed group there was an average loss of 5.8 degrees flexion, 1.2 degrees extension, 1.7 degrees ulnar deviation and 3.8 degrees supination with a gain of 0.7 degrees radial deviation, no change in pronation and a loss of 1.2kg in grip strength. These operatively managed patients had an average PRWE score of 6.5, DASH score of 31.5 and satisfaction score of 8.8. Conversely, in the non-operatively managed group there was an average loss of 17.5 degrees flexion, 9.4 degrees extension, 11.3 degrees ulnar deviation and 10.9 degrees supination with a gain of 0.1 degrees radial deviation, no change in pronation and a loss of 4.7kg in grip strength. These non-operatively managed patients had higher PRWE (42.5) and DASH (56) scores and were in general less pleased with their outcomes (mean satisfaction score – 5.6). Patients in the operatively managed group at 12–24 months post-injury had less significant loss of function as well as lower PRWE and DASH scores and higher satisfaction outcome scores

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.

Standard imaging of complex intra-articular distal radius fractures consists of posterior-anterior, lateral and oblique x-rays. Recently the liberal use of CT scan in this area became widely accepted as an additional imaging tool in pre-operative evaluation. The aim of this study was to evaluate whether CT scanning of complex distal radius fractures changed the management of these fractures compared to plain films. A series of 20 closed distal radius complex intra-articular fractures AO 12-C which had both plain PA, lateral and oblique films and CT scans were selected from our long bone trauma database. The plain films were blindly reviewed by five observers. A management plan was then formulated. Options provided were: closed manipulation, closed manipulation with percutaneous K wire fixation, open reduction and internal fixation, external fixature or bone graft/substitute. The same patients' CT scans (in randomised order) were blindly reviewed at the one week interval by the same clinicians with the same management options decided upon. Kappa statistic was used to measure the intra-individual agreement between x-ray and CT, as well as inter-individual agreement within each imagining modality. The agreement between individual observer's management decisions, based on the x-rays and on the CT scan was poor; with an average Kappa score of 0.038 (range 0.006 to 0.19). A regression model with management as a graded 5 level variable ranging from least invasive to most invasive and imaging modality as the predictor gave an estimated coefficient of 0.163, (p=-0.267); this indicates a trend towards a slightly higher level of invasiveness when the management decision was based on the CT compared to the plain x-rays. The agreement on management decisions between the observers based on x-ray alone was higher than that based on CT alone (kapa=0.174 vs 0.03). This study indicates a very poor level of agreement between decision-making, based on x-ray and on CT. Even within individual's ‘interindividual’ agreement appears higher with x-ray than CT. This study also raises the possibility that the use of CT scans increases the level of invasiveness in the surgical management of complex distal radius fractures

Purpose. Intra-articular fractures of the distal radius are common injuries. Their pathogenesis involves a complex combination of forces, including ligament tension, bony compression and shearing, leading to injury patterns that challenge the treating surgeon. The contribution of the radiocarpal and radioulnar ligaments to articular fracture location has not previously been described. Computed tomography (CT) scanning is an important method of evaluating intra-articular distal radius fractures, revealing details missed on plain radiographs and influencing treatment plans. Methods. We retrospectively reviewed CT scans of acute intra-articular distal radius fractures performed in one institution from June 2001 to June 2008. Forty- five of 145 scans were deemed unsuitable due to poor quality or presence of internal fixation in the distal radius, leaving 100 fractures for review. Fracture line locations were mapped to a standardised distal radius model, and statistically analysed in their relationship to ligament attachment zones. Results. Distal radius articular fracture lines are significantly less likely to occur in the regions of ligament attachment. Conversely, fracture lines are more likely to occur in the gaps between major ligament attachments. Conclusion. Articular fracture locations in the distal radius are significantly related to radiocarpal and radioulnar ligament attachments. This may aid treating surgeons in understanding the personality of a fracture and the role of ligamentotaxis in fracture reduction

Introduction: The value of arthroscopy, fluoroscopy, and e-learning courses (focusing on minimally invasive surgical techniques) for the treatment of intra-articular distal radius fractures (I-ADRF), remains controversial. This study compares the outcomes after fluoroscopically assisted (FA) reduction and external fixation of distal radius fractures, with or without concomitant arthroscopic evaluation. Materials and Methods: Forty-seven patients with I-ADRF underwent FA external fixation and percutaneous pinning. Among them 23 had additional arthroscopic evaluation of their wrist. For teaching purposes procedures with the use of fluoroscopy and arthroscopy were recorded and adapted as a course for the On-line Performance Support Environment for Minimally Invasive Orthopaedic Surgery (“OnLineOrtho” EU- sponsored project). The context of these courses was incorporated in an intelligent medical performance support environment. The duration of the procedure, the surgical findings and the outcomes were recorded. Results: The follow-up period ranged from 24 to 62 months and the patients were evaluated at 3, 6, 12 and 24 months. The addition of arthroscopy prolonged the procedure by 25 minutes but diminished the number of images obtained by the image intensifier by 5. After arthroscopic evaluation the placement of subchon-dral pins was changed, because of step-off, in 11 of 23 patients. Also tears of the TFCC (14 of 23 patients), perilunate ligaments (16) were depicted. Patients who underwent additional arthroscopic evaluation had significantly better supination, extension and flexion at all time points than those who had only fluoroscopically assisted surgery. The value added by e-courses and the online performance support system is highlighted through the recognition of the systems effectiveness in e-training. Discussion: During reduction and fixation of I-ADRF, arthroscopy is a very useful tool for the inspection of the articular surface, the ligaments and the TFCC. Long-term evaluation revealed that patients with additional arthroscopy returned to their previous activities in shorter periods and had better supination, flexion, and extension than patients with FA procedures. Fluoroscopy is essential for the minimally invasive surgical treatment of intra-articular distal radius fractures, whereas arthroscopy is an additional valuable tool that improves the outcome, and e-courses are useful adjuncts for teaching purposes

Background: It is well established that unstable fractures of the distal part of the radius may require operative treatment to restore alignment and that failure to restore alignment often leads to wrist and forearm dysfunction. There is ongoing debate in the literature whether or not there is a strict relationship between the quality of anatomical reconstruction and functional outcome. We hypothesize that there is no difference in objective- and subjective functional outcome between patients with AO type B versus more complex AO type C fractures. Methods: Ninety-four patients with an average age of 42 years (range, 20 to 78 years) at the time of injury were evaluated an average of 20 years (range, 8 to 32 years) after treatment of an intra-articular distal radius fracture. At long-term follow-up patients were evaluated using a physician-based evaluation instruments (modified Mayo wrist score; MMWS and an upper extremity-specific health status questionnaire (Disabilities of the Arm, Shoulder and Hand; DASH) questionnaire. Objective and subjective functional outcome of patients with AO Type B and AO Type C fractures were compared. Results: An average of 20 years after injury (average age 62 years, range 35 to 90), all fractures healed without significant loss of alignment. There was no difference in physician based outcome measure according to the Mayo score between 17 patients with 18 AO type B fractures (average, 80,3 points; range 45 to 100) and 27 patients with 31 AO type C fractures (average, 75.9 points; range 10 to 95, p=0.42). Differences in subjective DASH scores were not statistically significant either (p = 0.47); average 13 points for Type B patients (range, 0 to 58 points) and an average of 16 points for Type C patients (range, 0 to 71 points). Groups were statistically comparable. No statistical differences were found in flexion extension arc (average 103 degrees, range 10 to 145 degrees), pronation supination arc (average 150 degrees, range 0 to 180 degrees) or radial ulnar deviation (average 52 degrees, range 0 to 85 degrees), as well as grip strength and osteoarthritis (all p> 0.05). Conclusions: Twenty years after injury 67% of patients have a satisfactory outcome according to physician-based MMWS categorical ratings. There is no difference in functional long term outcome between patient with more extensive intra-articular comminution (type C fractures) and AO type B fractures. This is consistent with previous long term outcome studies with similar methodology; when more complex injuries are not correlated with decreased long term functional outcome, other (subjective) factors are more important determinants of disability

Fractures of the distal radius are the most common bony injuries in the upper extremity, and many treatment Methods: have been described in the literature. External fixation remains a highly versatile method to treat many fracture types involving the distal radius. The primary indications for external fixation include reduction of unstable extra-articular fractures and most intra-articular fractures. The use of adjuvant pinning or mini open procedures can be used when external fixation inadequately reduces the joint line alone, especially with central depressions and highly comminuted injuries. The ease of use of the implants and successful track record make it an extremely versatile tool for treating complex fractures of the distal radius. Purpose: To compare 2 Methods: of surgical treatment for displaced intra-articular fractures of the distal radius: open reduction and internal fixation with dorsal plating (Pi Plate; Synthes, Paoli, PA) versus external fixation with o without K-wires. Methods: We compare a retrospective study about AO type C intra-articular distal radius fractures. The fist group (40 patients) is treated with open reduction and internal fixation with DVR plate ande the second group (65 pacients) is treated with external fixation and K-wires and mini-open reduction. Objective, subjective, and radiographic outcomes were assessed at 2 weeks, 4 to 6 weeks, 10 to 12 weeks, 6 months, and 1- and 2-year intervals. The minimum follow-up period was 6 months; the average follow-up period was 18 months. The principal outcome analyzed was Jakim store that included pain, grip strength, range of motion, complications, and radiographic parameters. The groups were equal with respect to age, gender and fracture subtype. Results: No significant difference was found in the Jakim store outcome. The volar plate group, howevwe, showed a similar complication rate when compared with the external fixator group. The plate group also had similar levels of pain at 1 year when compared with the external fixator group. The external fixator group showed an average grip strength of 92% compared with the normal side and 86% in the volar plate group. Conclusions: At midterm analysis the volar plate group showed a significantly higher complication rate compared with the external fixator group; therefore enrollment in the study was terminated. The volar plate group also showed statistically significant higher levels of pain, and weaker grip strength. Based on these results we can recommend the use of volar plates in treating complex intraarticular fractures of the distal radius

Objective: The purpose of this study was to compare the functional and workers compensation results of displaced intra-articular distal radius fractures treated with three diferent type of treatments. Material and Methods: A randomized prospective study to evaluate 70 patients with displaced intraarticular distal radius fractures. The mean age were 40 years (range, 22–65 years) and all patients were medium or high level workers (40% dominant-hand). Three randomized groups were treated: 19 patients with close reduction and a cast (group 1); 24 patients with close reduction, percutaneous fixation with Kw and a cast (group 2); and 27 patiens with close reduction and external fixation and Kw (group 3). Postoperative complications, pain (visual analogue scale), clinical and functional outcome based on DASH score, grip strength, X-ray evaluation, time to return to work and activity level were evaluated and compared at 3, 6 and 12 months of prospective follow-up. Results: Consolidation was obtained in all cases at 7 weeks. Results at 12 months of follow-up: Pain evaluation score: 2.3 (group 1), 2.9 (group 2) and 1.5 (group 3); mean lost of ROM was 11° (group 1), 11° (group 2) and 23.9° (group 3); mean DASH score was 7 (group 1), 29 (group 2) and 12 (group 3). Average lost of pinch strength was 18.3% (group 1), 23% (group 2) and 35% (group 3). Non-aceptable X-ray parameters: 65% (group 1), 35% (group 2) and 50% (group 3). Re-operations: 10% (group 1), 7.6% (group 2) and 14.8% (group 3). The average time to return to work (weeks) was 12 (group 1), 14 (group 2) and 19.3 (group 3). All patients return to the work and activity level they had before injury. Conclusions: Similar results were obtained in the three groups at 12 months but better clinical results for the conservative group (group 1) at 3 and 6 months of FU. The orthopaedic treatment achieved better functional results with lesser lost of ROM, time out of work, more grip strength and better DASH score. Percutaneous fixation achieve better X-ray results at the end of FU with lesser re-operations. The functional and clinical outcomes after one year still are unknown. Hence, more and longer studies are required to confirm these results

Management of comminuted, intra-articular distal radius fractures remains a challenge. Basic principles are to obtain anatomic reduction, maintain the reduction, and rehabilitate the injured joint and the patient as soon as possible. This report presents fragment specific fixation as a method for maintaining fractures reduction and allowing early otion. This was a retrospective consecutive series of AO classified C2 and C3 distal radius fractures treated with fragment specific fixation. Patients were included if their age was between eighteen and sixty years. Part one was a radiographic assessment of seventy-two patients after fracture union. Part two was a comprehensive functional assessment, carried out by a blinded observer in the first twenty-three patients, six months post op. Mean patient age was thirty-nine years. The most common combination of fixation was a radial pin plate with an ulnar pin plate, although twenty-eight different combinations were found. Part one (radiographic) results were mean final radial inclination angle 21°, mean final palmar tilt 3.7°, mean final ulnar ariance +0.7mm, mean final intra-articular gap 0.9mm, mean final intra-articular step 0.7mm. Part two (functional) results were mean grip 21kg; mean key pinch 10kg; mean ranges of motion pronation 74°, supination 69°, extension 59°, flexion 48°, radial deviation 17°, ulnar deviation 22°; and mean return to work twenty-one weeks. Mean scores in Patient Rated Wrist Evaluation and Disabilities of the Arm, Shoulder, and Hand were twenty and fourteen, respectively. In the short term, the functional results of ragment specific fixation of ifficult distal radius fractures produced results similar to other methods described in the medical literature. The technique, however, allowed early wrist motion, and produced long term radiographic results well within Cooney’s criteria for optimal reduction. It is expected, therefore that long-term results will prove to be superior to other management techniques