Background. Anatomical reduction of unstable Lisfranc injuries is crucial. Evidence as to the best methods of surgical stabilization remains sparse, with small patient numbers a particular issue. Dorsal bridge plating offers rigid stability and joint preservation. The primary aim of this study was to assess the medium-term functional outcomes for patients treated with this technique at our centre. Additionally, we review for risk factors that influence outcomes. Methods. 85 patients who underwent open reduction and dorsal bridge plate fixation of unstable Lisfranc injuries between January 2014 and January 2019 were identified. Metalwork was not routinely removed. A retrospective review of case notes was conducted. The Manchester-Oxford Foot Questionnaire summary index (MOXFQ-Index) was the primary outcome measure, collected at final follow-up, with a minimum follow-up of 24 months. The American Orthopedic Foot and Ankle Society (AOFAS) midfoot scale, complications, and all-cause re-operation rates were secondary outcome measures. Univariate and multivariate analyses were used to identify risk factors associated with poorer outcomes. Results. Mean follow-up 40.8 months (24–72). Mean MOXFQ-Index 27.0 (SD 7.1). Mean AOFAS score 72.6 (SD 11.6). 48/85 patients had injury patterns that included an intra-articular fracture and this was associated with poorer outcomes, with worse MOXFQ and AOFAS scores (both p < 0.001). 18 patients (21%) required the removal of metalwork for either prominence or stiffness. Female patients were more likely to require metalwork removal (OR 3.89, 95% CI 1.27 to 12.0, p = 0.02). Eight patients (9%) required secondary arthrodesis. Conclusions. This is the largest series of Lisfranc injuries treated with dorsal bridge plate fixation reported to date and the only to routinely retain metalwork. The technique is safe and effective. The presence of an intraarticular fracture is a poor prognostic indicator. Metalwork removal is more likely to be needed in female patients but routine removal may not be essential

Aims

Wrist arthroscopy is a standard procedure in hand surgery for diagnosis and treatment of wrist injuries. Even though not generally recommended for similar procedures, general administration of perioperative antibiotic prophylaxis (PAP) is still widely used in wrist arthroscopy.

Displaced intraarticular calcaneal fractures are debilitating injuries with significant socioeconomic and psychological effects primarily affecting patients in active age between 30 and 50 years. Recently, minimally and less invasive screw fixation techniques have become popular as alternative to locked plating. The aim of this study was to analyze biomechanically in direct comparison the primary stability of 3 different cannulated screw configurations for fixation of Sanders type II-B intraarticular calcaneal fractures. Fifteen fresh-frozen human cadaveric lower limbs were amputated mid-calf and through the Chopart joint. Following, soft tissues at the lateral foot side were removed, whereas the medial side and Achilles tendon were preserved. Reproducible Sanders type II-B intraarticular fracture patterns were created by means of osteotomies. The proximal tibia end and the anterior-inferior aspect of the calcaneus were then embedded in polymethylmethacrylate. Based on bone mineral density measurements, the specimens were randomized to 3 groups for fixation with 3 different screw configurations using two 6.5 mm and two 4.5 mm cannulated screws. In Group 1, two parallel longitudinal screws entered the tuber calcanei above the Achilles tendon insertion and proceeded to the anterior process, and two transverse screws fixed the posterior facet perpendicular to the fracture line. In Group 2, two parallel screws entered the tuber calcanei below the Achilles tendon insertion, aiming at the anterior process, and two transverse screws fixed the posterior facet. In Group 3, two screws were inserted along the bone axis, entering the tuber calcanei above the Achilles tendon insertion and proceeding to the central-inferior part of the anterior process. In addition, one transverse screw was inserted from lateral to medial for fixation of the posterior facet and one oblique screw – inserted from the posterior-plantar part of the tuber calcanei – supported the posterolateral part of the posterior facet. All specimens were tested in simulated midstance position under progressively increasing cyclic loading at 2 Hz. Starting from 200N, the peak load of each cycle increased at a rate of 0.1 N/cycle. Interfragmentary movements were captured by means of optical motion tracking and triggered mediolateral x-rays. Plantar movement, defined as displacement between the anterior process and the tuber calcanei at the most inferior side was biggest in Group 2 and increased significantly over test cycles in all groups (P = 0.001). Cycles to 2 mm plantar movement were significantly higher in both Group 1 (15847 ± 5250) and Group 3 (13323 ± 4363) compared to Group 2 (4875 ± 3480), P = 0.048. Medial gapping after 2500 cycles was significantly bigger in Group 2 versus Group 3, P = 0.024. No intraarticular displacement was observed in any group during testing. From biomechanical perspective, screw configuration implementing one oblique screw seems to provide sufficient hindfoot stability in Sanders Type II-B intraarticular calcaneal fractures under dynamic loading. Posterior facet support by means of buttress or superiorly inserted longitudinal screws results in less plantar movement between the tuber calcanei and anterior fragments. On the other hand, inferiorly inserted longitudinal screws seem to be associated with bigger interfragmentary movements

Introduction. Intraarticular calcaneal fractures often need open reduction and internal fixation (ORIF) with plate osteosynthesis. The wound complication is one of the common problems encountered following this and affects the outcome adversely. Our study was done to assess how far postoperative slab/cast can avert wound complications. Methods. Out of 42 patients with unilateral intraarticular calcaneal fractures, 20 were offered postoperative slab/cast and this was continued for six weeks. The remaining 22 patients were not offered any plaster. All patients were followed-up for two years. Results. The incidence of wound dehiscence was 2 in the plaster group as well as 8 in the non-plaster group and this was statistically significant (p = 0.02). Also, significantly lower heel widening was reported in the plaster group (p = 0.03). Although, there was no significant difference in the patient-reported outcome (Maryland Foot Score) and the incidence of pain between the two groups, the occurrence of neurological deficit following surgery and the postoperative range of movements were comparable in these two groups. Conclusion. Thus, it may be concluded that postoperative plaster application for the initial six weeks could be a low-cost yet effective way to reduce wound complications following plate osteosynthesis in intraarticular calcaneal fractures

Treatment of comminuted intraarticular calcaneal fractures remains controversial and challenging. Anatomic reduction with stable fixation has demonstrated better outcomes than nonoperative treatment of displaced intraarticular fractures involving the posterior facet and anterior calcaneocuboid joint (CCJ) articulating surface of the calcaneus. The aim of this study was to investigate the biomechanical performance of three different methods for fixation of comminuted intraarticular calcaneal fractures. Comminuted calcaneal fractures, including Sanders III-AB fracture of the posterior facet and Kinner II-B fracture of the CCJ articulating calcaneal surface, were simulated in 18 fresh-frozen human cadaveric lower legs by means of osteotomies. The ankle joint, medial soft tissues and midtarsal bones along with the ligaments were preserved. The specimens were randomized according to their bone mineral density to 3 groups for fixation with either (1) 2.7 mm variable-angle locking anterolateral calcaneal plate in combination with one 4.5 mm and one 6.5 mm cannulated screw (Group 1), (2) 2.7 mm variable-angle locking lateral calcaneal plate (Group 2), or (3) interlocking calcaneal nail with 3.5 mm screws in combination with 3 separate 4.0 mm cannulated screws (Group 3). All specimens were biomechanically tested until failure under axial loading with the foot in simulated midstance position. Each test commenced with an initial quasi-static compression ramp from 50 N to 200 N, followed by progressively increasing cyclic loading at 2Hz. Starting from 200 N, the peak load of each cycle increased at a rate of 0.2 N/cycle. Interfragmentary movements were captured by means of optical motion tracking. In addition, mediolateral X-rays were taken every 250 cycles with a triggered C-arm. Varus deformation between the tuber calcanei and lateral calcaneal fragments, plantar gapping between the anterior process and tuber fragments, displacement at the plantar aspect of the CCJ articular calcaneal surface, and Böhler angle were evaluated. Varus deformation of 10° was reached at significantly lower number of cycles in Group 2 compared to Group 1 and Group 3 (P ≤ 0.017). Both cycles to 10° plantar gapping and 2 mm displacement at the CCJ articular calcaneal surface revealed no significant differences between the groups (P ≥ 0.773). Böhler angle after 5000 cycles (1200 N peak load) had significantly bigger decrease in Group 2 compared to both other groups (P ≤ 0.020). From biomechanical perspective, treatment of comminuted intraarticular calcaneal fractures using variable-angle locked plate with additional longitudinal screws or interlocked nail in combination with separate transversal screws seems to provide superior stability as opposed to variable-angle locked plating only

Elevated fat pads on a paediatric elbow radiograph may represent an intraarticular fracture. If no obvious fracture is visible, the injury may be treated with a collar and cuff until discomfort resolves. In some centres these patients are discharged directly from A&E, easing the load on fracture clinics and reducing the number of visits required by the patient. A retrospective study was carried out to review patient journey for children referred to clinic with elevated fat pads only and to investigate whether such a protocol could be established locally. Notes for all children attending fracture clinic in May 2018 were reviewed. X-rays for patients with any elbow injury were then reviewed. Patients with raised fat pads only were included in the study. Outcome following clinic review was recorded. 818 patients (315 new referrals) attended 15 clinics. 31 were referred with raised fat pads only. Mean age was 7.7 years with mean time to clinic of 4 days. 74.2% required no further treatment and were discharged at first clinic appointment. 8 patients were kept in cast for another 1–2 weeks due to parental apprehension, patient apprehension or patient being uncomfortable without cast. None of our patients required surgical intervention or re-attended following discharge. This study showed that patients with raised fat pads only can be treated with collar and cuff, analgesia and discharged from A&E with an advice leaflet. This would reduce the number of patients unnecessarily attending clinics thereby reducing patient distress and enabling more efficient use of clinic appointments

Intraarticular fractures of the distal humerus comprise 1% of all fractures in adults. Triceps reflecting and olecranon osteotomy approach provide adequate exposure in intraarticular fracture with its own advantage and disadvantages. Forty consecutive patients with fractures of the distal humerus were treated over a 36-month period. The patients were randomly allotted into two groups; group A consists of twenty patients with olecranon osteotomy and group B consists of twenty patients with triceps reflecting approach. In both the groups fracture was fixed using orthogonal or parallel plating techniques. Clinical outcome was assessed using the DASH SCORE, radiological union and complications was noted in both the group and compared. In group A the mean DASH score was 15.9 points. Three patients underwent a second procedure for hardware removal, 2 patients had non-union at osteotomy site, one patient had transient ulna nerve neuropraxia and one patient had superficial infection. In group B the mean DASH score was 14 points. There was no statistical significance between both groups regarding final outcome except complications were more in osteotomy approach. We conclude both approach is an effective procedure with an excellent or good functional outcome but osteotomy approach has more complications

Background. The distal part of the radius is the most common localisation of fractures of the human body. Dislocated intraarticular fractures of the distal radius (FDR) are frequently treated by open reduction and internal fixation with a volar locking plate (VLP) under fluoroscopic guidance. Typically the locking screws are placed subchondral near the joint line to achieve maximum stability of the osteosynthesis. To avoid intraarticular screw placement an intraoperative virtual implant planning system (VIPS) as an application for mobile C-arms was established. The aim of the study was the validation of the implemented VIPS comparing the intraoperative planning with the actual placement of the screws. The study was conducted as a single-centre randomised controlled trial in a primary care institution. The hypothesis of the study was that there is conformity between the virtual implant position and the real implant placement. Patients/Material and Methods. 30 patients with FDR type A3, C1 and C2 according to the AO-classification were randomised in two treatment groups and allocated either in the conventional or in the VIPS group in which the patients underwent an intraoperative planning before screw placement. The randomisation was performed on the basis of a computer-generated code. After fracture reduction an initial diaphyseal fixation of the plate was done. Then the matching of the three-dimensional virtual plate with the image of the real plate in the fluoroscopy shots in two planes was performed automatically. The implant placement was planned intraoperatively in terms of orientation, angulation and length of the screws. After the placement of four or five locking screws the implant position was verified with an intraoperative three-dimensional mobile C-arm scan. The locking screws near the joint line were examined and compared in relation to the actual and the planned inclination angle, the azimuth angle which is determined analogue to a compass rose and the screw-tip distance. The planned and actual parameters of the locking screws were then statistically analysed applying the Shapiro-Wilk - and the Students t-test. Results. 15 patients with FDR were treated in the VIPS arm. In the VIPS group six fractures type A3 one type C1 and eight type C2 were included. The control group showed a similar fracture distribution with six type A3 and nine type C2 fractures. The discrepancy between the actual and the planned screw-tip distance was 2,24 ± 0,97 mm and did not differ significantly (p>0,05). The angle of the planned and actual screw placement also did not vary significantly (p>0,05). The difference of the actual to the planned azimut angle accounted for 18,69°± 29,84. The planned and real inclination of the screws differed by 1,66° ± 4,46. Conclusion. The analysis shows that the screws were almost placed as planned. Differences between actual and planned placement of the screws were observed but were not statistically significant. Therefore the hypothesis of the study can be accepted. We assume, that the precise planning of the screw placement in FDR with VIPS can be transported into the surgical treatment

Tibial plateau fractures are common intraarticular fractures. The principal long-term complication is post-traumatic osteoarthritis (PTOA) with the usual salvage procedure being total knee arthroplasty (TKA). Our aim was to define the incidence of PTOA requiring TKA following tibial plateau fractures and identify the risk factors. We looked at all tibial plateau fractures between 1995 and 2008. There were 888 tibial plateau fractures. 23% were Schatzker I, 25% II, 14% III, 22% IV, 8% V and 8% VI. To date 25 have undergone TKA (2.8%). The mean age of patients at time of fracture was 56 in the overall cohort and 65 in those requiring TKA; this was statistically significant (p=0.04). 4% of females with tibial plateau fractures required TKA in comparison to 2% of males. The Schatzker I fractures were the least likely to require TKA at 1% with the most likely requiring arthroplasty surgery being type III at 6%. Only 1% of the patients treated non-operatively later underwent TKA. The overall incidence of TKA after tibial plateau fractures was 3%. For displaced fractures requiring internal fixation this rose to 4%. Risk factors were increasing age, split depression fractures and female gender. Although tibial plateau fractures are commonly associated with degenerative radiographic changes, we concluded that the incidence of symptomatic OA severe enough to require TKA is low

Introduction:. Percutaneous fixation of intraarticular calcaneal fractures adequately restore the subtalar joint with lower soft tissue complications and equivalent short-term results compared to open fixation. However, studies have largely focused on less severe fracture types (Sanders types 2/3). We report our initial experience of this relatively new Mini-open Arthroscopic-assisted Calcaneal Osteosynthesis (MACO) technique for more comminuted calcaneal fractures (Sanders types 3/4). Methods:. We prospectively studied consecutive patients with intraarticular calcaneal fractures requiring surgical fixation between April 2012 and June 2013. MACO involves initial subtalar arthroscopic debridement, with subsequent fluoroscopic-assisted, mini-open reduction and fixation of depressed fragments using cannulated screws. Outcome scores (Manchester-Oxford Foot(MOXFQ), AOFAS Hindfoot and SF-36 questionnaires) and radiological parameters were recorded with a mean follow-up of 12 months (7–13). Results:. There were 9 patients (7 M:2 F) with a mean age of 45.4 years (24–70). All had intra-articular joint depression-type fractures: 5 Sanders type 3 and 4 Sanders type 4. Mean time to surgery was 6.6 days (1–13), operating time was 89.4 minutes (66–130) and inpatient stay was 1.7 days (1–4). All wounds healed without complication and one patient required change of a long screw 11 days post-operatively. There were significant post-operative improvements in the mean Bohler's angle (−2°[−27.2–14.8] to 30°[10.2–41.3], p<0.0002) and angle of Gissane (95°[66.2–111.7] to 111°[101.6–120], p=0.004). Mean outcome scores were 60.8(41–86) for MOXFQ and 75.3(55–92) for AOFAS Hindfoot, with 55.9% developing moderate/severe subtalar joint stiffness. Mean physical and mental SF-36 summary scores were 35.5(24.5–41.5) and 51.7(40.8–61.7) respectively. Conclusion:. We describe the MACO technique for Sanders types 3/4 calcaneal fractures. There were no soft tissue complications with good short-term outcomes, despite a reduction in hindfoot mobility. Restoration of the joint and bone stock without infection is desirable in the event of subsequent arthrodesis. We propose MACO is a valuable alternative technique to open fixation

The study looked at early outcomes of 55 patients who underwent open reduction and internal fixation of distal radius fracture with a single variable angle volar locking plate (Variax, Stryker), by a single surgeon (GS), between May 2007 and December 2008. A retrospective review of notes and radiographs was performed. Twenty-nine women and 26 men were included. The mean age was 52 years. Mean follow up time was 3 months. The dominant wrist was involved in 38 patients. The mechanism of injury was of low energy in 38 patients and of high energy in 17 patients. All patients had comminuted fractures and 52 patients had intraarticular fractures. Seven patients underwent intraoperative carpal tunnel decompression. At latest follow up, active wrist motion averaged 37° extension, 40° flexion, 70° pronation, and 56° supination. Grip strength averaged 64% and pinch grip 77% of the contralateral wrist. Postoperative complications included one flexor pollicis longus rupture, one malunion and three patients with loosening of screws. There was a higher rate of complications seen in patients with high energy injuries. These early results suggest that volar plating with a variable angle plate is an effective treatment option, especially for complex intraarticular distal radius fractures. A medium term outcomes study of a larger number of patients is planned

Purpose. To elucidate whether there is an advantage in external fixation supplementation of K-wires in comparison to K-wires and plaster, in the treatment of distal radius fractures without metaphyseal comminution. Indications. Distal intraarticular radius fractures, Frykman VIII or VIII without metaphyseal comminution. Contraindications. Metaphyseal comminution, general medical contraindications for surgical intervention. Study design. Fifty-one patients were prospectively randomised in two groups: 24 patients were treated with K-wire and spanning external fixation supplementation, and 27 were treated with K-wires and plaster. Results. Patients were monitored following the operation with a minimum follow up of 1 year, and checked independently of surgeon for pain, satisfaction and range of motion. There was a statistically significant difference in favour of the external fixation patient group for pain (Visual Analogue Score, Ex-Fix group: mean 14.9, plaster group: mean 28.1, p<0.001) and satisfaction (Ex-Fix group: mean 89.7, plaster group: mean 76.3, p<0.001,). Although one would expect that range of motion would be reduced in the external fixation group, there were no statistically significant differences found in favour of plaster; on the contrary supination results were surprisingly in favour of the external fixation group (Ex-Fix group: mean 54.4, plaster group: mean 45.2, p<0.05). Conclusion. In this study, external fixation supplementation of K-wiring had statistically significant superior results in patient satisfaction score, pain score, and wrist supination in comparison to plaster augmentation of K-wiring

Our purpose was to evaluate the use of indirect and closed reduction with Ilizarov external fixator in intraarticular calcaneal fractures. In a period of 3 years, 16 patients with 18 intraarticular fractures of calcaneus (eleven type III and seven type IV according to Sanders classification) were treated with the Ilizarov fixator. Twelve patients were male and four female. The average age was 42 years (range 25 – 63 years). Three fractures were open. Fractures were evaluated by preoperative radiographs and CT scans. Restoration of the calcaneal bone anatomy was obtained by closed means using minimally invasive reduction technique by Ilizarov fixator. Arthrodiatasis and ligamento-taxis, and closed reduction of the subtalar joint were performed in 14 cases. In 4 cases the depressed posterior calcaneal facet was elevated by small lateral incision and stabilized in frame by wires. Postoperatively, partial, early weight bearing was encouraged in all patients. The mean follow-up period was 1,5 years (range 1 – 3 years). The AOFAS Ankle – Hindfoot Score, and physical examination were used in functional evaluation. The average score was 79,8 (range 72 – 90). Six patients had limited degenerative radiological findings of osteoarthrosis about the subtalar joint and three of them had painful subtalar movement. One of the patients complained of heel pad pain. Nine (6.25%) grade II pin tract infections were detected from a total of 144 wires. No secondary reconstructive procedures, including osteotomies, subtalar fusions, or amputations, have been done. Indirect closed reduction of calcaneal bone anatomy and arthrodiatasis of subtalar joint with Ilizarov external fixator is a viable surgical alternative for intraarticular calcaneal fractures

The frequent choice of treatment for tibial shaft fractures is intramedullary nailing. However there are cases where this treatment is problematic and alternative treatments are chosen with satisfied results. Twenty-nine patients with complex, unstable tibial shaft fractures (13 males and 16 females) aged 18 to 76 years (mean age 49 years) were treated using Ilizarov external fixation, the last decade in our Department by the same surgeon. The indications were open Gustillo III fractures, comminuted fractures of the proximal or distal third tibia near metaphysis, concomitant plateau or pillon fractures and fractures after total knee arthroplasty (TKA). All frames were applied the first day of injury. Patients without concomitant intraarticular fracture or bone deficit allowed to full weight bearing within2 weeks after surgery. Union and good to excellent alignment with full range of motion in the knee and ankle joints was obtained in all patients. Three patients needed bone lengthening using the initial applied frame after corticotomy in second operation. There were 7 delayed unions in fractures without bone deficit, 10 superficial pin tract infection treated with antibiotics and local care and 1 deep infection which needed surgical intervention. Ilizarov external fixation gives the solution in difficult and problematic tibial shaft fractures and allows early weight bearing

Introduction: There is still controversy regarding which method of internal fixation of intraarticular hip fracture is ideal. The purpose of this study was to evaluate the outcome and complications following the fixation of such fractures with cannulated cancellous screws with two different types of triangular configurations of these screws: one superior and two inferior and vice versa. Methods: Between January 2006 and December 2008, one hundred and twelve femoral neck fractures in 125 patients (mean age of 67 years) were treated by closed reduction and internal fixation (CRIF) by titanium cannulated screws, using alternately these configuration types of fixation. Twelve patients were lost to follow-up. Ninety-eight fractures in 93 patients were followed to union or revision surgery, with a mean duration of follow-up of twenty one months. There were 52 Garden I fractures, 34 Garden II fractures and 12 Garden III and IV fractures. Fifty-one were treated with standard configuration of 2 inferior and one superior screws (group 1), while 47 were treated with reverse placement (group 2). There was no statistic difference regarding age, sex and Garden’s classification between the two groups. The quality of reduction, accuracy of implant placement and rates of nonunion and osteonecrosis were evaluated. Results: 83/98 fractures (85%) had at follow-up good-to-excellent reduction and fifteen (15%) had a fair or poor reduction. There was a nonunion of seven fractures (7 %) and avascular necrosis of the femoral head (AVN) in five (5%). There were no deep infections. Seventy one patients (83%) had a good functional outcome (as compared to 85/93 Pts- 91% – prior to fractures). Six patients (four with nonunion and two with avascular necrosis) went through revision surgery (THR). There was no difference in the quality of reduction, number of nonunion and AVN and functional outcome between both groups of fixation. There was a difference in the outcome which depended on the Garden type of fraction and the accuracy of reduction. Most complications were observed in Garden’s III and IV fractures with inaccurate reduction. Conclusions: Excellent reduction and accurate implant placement is the main reason for a good outcome after close reduction and internal fixation of intraarticular hip fractures. We didn’t find any difference in the outcome following fixation in two different configurations of the screws

Introduction: Tibial plafond fractures constitute one of the most challenging injuries in orthopaedic surgery. Complications are common and clinical outcomes are generally poor. New guidelines for the management of these fractures and modern implants look forward to improving these results. Material and Methods: 40 tibial plafond fractures treated by open reduction and internal fixation between January 2006 and December 2008 were included prospectively. Fractures were classified according to the AO classification. A CT scan was required in17 intraarticular fractures. Definitive surgery was delayed until soft tissue injury had been healed. Eleven patients underwent provisional external fixation. Mean time to surgery was of 7.5 days (range, 0 to 40 days). 27 fractures were treated by anteromedial plating, 12 with anterolateral plating and in one case two plates were required. Bone grafting was used in 8 cases. Plain radiographs were used to determine axial alignment and time to healing. Reduction of the articular surface was considered anatomical when there was less of 1mm of displacement. The Ankle Osteoarthritis Score (AOS) was analysed for pain and disability. Statistical analysis was performed with the SPSS 12.0 for Windows. Results: According to the AO classification there were 22 Type A fractures, 9 Type B and 9 Type C. There were 7 open fractures (3 Type I, 3 Type II, 1 Type IIIA). Mean time to healing was of 18.1 weeks (8 to 32). Mean AOS score was of 41.2 points. There were 33 excellent and good results. There were 11 secondary losses of reduction and 5 non-union. Clinical results were correlated with the quality of the reduction and with secondary displacement (p=1 and p=0.69 respectively). Anatomic reduction was more frequent in Type A (81.8%) and B (88.9%) fractures than in Type C (77.8%). There were not statistically significant differences in the quality of the reduction (p=0.88) or in the appearance of secondary displacement (p=0.46) between anteromedial or anterolateral plating. There were 6 infections (4 following anteromedial plating and 2 after anterolateral plating which was not statistically significant p=0.88). 13 patients developed soft tissue complications. Five requiring soft tissue fiaps. Conclusion: Anteromedial and anterolateral plating of the distal tibia provide good clinical and radiological results. Infection rate is similar with both approaches. Appropriate timing of surgery can minimize soft tissue complications

Introduction: Because of strong loads acting in the elbow joint, intraarticular fractures with a methaphyseal comminuted fracture site at the distal humerus demand a lot from the osteosynthetic care. Ambiguities arise concerning to the anatomic position of the implants and the resulting mechanic performance. Aim of this study was the comparison of three anatomic variations of one angle stable plate system as to their mechanic stability. Material and Methods: As a fracture model an AO C 2.3-fracture on an artificial bone (4th Gen. Sawbone) was simulated via double osteotomy in sagittal and transversal plane. The fractures were equipped with a prototypical version of the Variax Elbow System (Stryker) in the variations 90° (lat+post), 90° (med+post) and 180° (med+lat). A physiological load distribution (Capitulum Humeri 60%, Trochlea humeri 40%) could be guaranteed for by a therefore designed test set up. In three test series, the load to failure (static), the system rigidity (static) and the median fatigue limit (dynamic) were determined. The tests were conducted under 75° flexion and 5° extension and the relative displacements were recorded. Results: In extension, the 180° (med+lat) alternative achieved the highest load to failure (2959 N), stiffness (1126 N ± 127 N) and median fatigue limit (1046 N ± 46 N) followed by the 90° (lat+post) alternative. Great differences could be stated with the 180° (me d+lat) alternative in extension in comparison to the flexion (p< 0,05): under flexion the failure already appeared at 1077N and the stiffness reduced to 116 N ± 10 N. The highest stiffness (202 N ±19 N) under flexion load could be determined for 90° (med+post). As to stiffness, the 90° (lat+post) alt ernative lay in between. Decreases of fracture gaps due to a failure of screw bone interface and a bending of plates could be determined as failure patterns in case of static load. Under dynamic load especially fatigue fractures occurred at the implant system in terms of broken plates and screws. Conclusion: In vivo the highest loads occur at the distal humerus in extension direction which can best be transferred, in static as well as in dynamic regard, by a 180° alternative. An alternative to that is the 90° (lat+post) variation due to its advantageous me chanic performance under static and dynamic extension load. But still the nature of fracture with size and position of the fragments useable remains decisive for the choice of an osteosynthesis. The mechanic superiority of the 180° alternative (minimized gap displacement and high stiffness of the system respectively) in extension direction in comparison to a 90° alternative can be explained by the 90° position of the plates and hence reduced moment of inertia. Less stiffness under flexion direction arises from the long levers, which cause high bending moments

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

Introduction: Since the introduction of locked implants new possibilities in the treatment of proximal humeral fractures have evolved. Despite the success using locked plates recent publications report the cutting of screws through the humeral head in up to 30% of the cases. The distribution of the bone strength in the humeral head is not linear. Can polyaxial screw positioning in areas with higher bone strength reduce the “cutout” rate? Which effect has an inferomedial screw if the medial hinge is not restored?. Methods: 4 groups were formed from 31 fresh frozen proximal humeral cadavers. A polyaxial proximal humeral locking plate was used to perform the tests. A standardised unstable intraarticular fracture was created. Main Outcome measure was the load and cycle where at least one screw was cutting through the cartilage. Results: Polyaxial screw placement in areas of incresead bone strength compared to random screw placement had no effect on the cutout behaviour (p=0.7). Increased screw number (3 vs. 5) significantly increases the resistance against cutout (p< 0.04). An inferomedial screw significantly increases the resistance to develop a cutout compared to the control groups(p=0.03 and p< 0.05). Discussion: The placement of an inferomedial screw significantly increases the resistence to develop a cutout in proximal humeral fractures without a medial hinge independently of the total screw number. In addition we could also show that the number of screws in the humeral head has a significant effect on cutout resistance in a human cadaver setup

The use of the Dynastab K external fixator in the treatment of the tibial plateau fractures. The aim of the study was the assessment of the clinical use of Dynastab K (knee) external fixator in the treatment of intraarticular fractures of the proximal tibia. The study was conducted in the Department of Orthopaedics and Rehabilitation Warsaw Medical University. Between November 2004 and December 2007, 29 patients were included in the study (12 females and 17 males). In the experimental group, consisting of 15 patients (7 females and 8 males) open reduction and fixation of the fracture was performed. After that Dynastab K external fixator was implanted to the femur and tibia with the use of pins. On the second day after the surgery rehabilitation of the knee joint was started. Fixator was being held on the lower limb for 6 – 8 week. In the control group (14 patients – 5 females and 9 males) after open reduction and fixation of the fracture, knee orthosis was applied. Orthosis was set up in 15 degrees flexion. After that time the rehabilitation was started. The final follow up visit was performed about 34 weeks after the surgery. The amount of articular depression, the range of motion of the knee joint, the amount of pain and the condition of soft tissues around pins were assessed during the study. The clinical and radiological outcomes were determined according to Rasmussen’s system and the condition of soft tissues with the use of Dahl’s scale. Resnick and Niwoyama criteria were used for grading of post-traumatic osteoarthrosis and Visual Analogue Scale for pain intensity. Subjective evaluation of knee function was performed by the self-made scale. There were no statistically important differences in the amount of articular depression before the operation, after reduction and on the last follow-up visit, between the experimental and control group. The mean range of motion of the knee joint was 127,5 degrees in the experimental group and 118,3 degrees in the control group. In the experimental group the amount of pain around the knee was gradually diminished after the operation, whereas in the control group the amount of pain was sharply reduced, but after unblocking the orthosis rised significantly. There were not noticed any pin site infection. 10 patients (66,7%) from the experimental group and 7 (50%) from the control group achieved very good results in the radiological scale. The results in the clinical scale were very good at 6 patients (40,0%) from the experimental group and at 3 patients (21,4%) from the control group. During the last follow-up visit the subjective evaluation of the knee joint function was 0,64 points better in the group treated with the Dynastab K external fixator