Iatrogenic Brachial Artery Injury During Long Proximal Humeral Interlocking System (PHILOS) Plating.

Iatrogenic vascular injuries are rare but potentially serious complications that can occur during orthopedic procedures involving the proximal humerus. We present a case report of a patient who sustained a brachial artery injury during a long Proximal Humeral Interlocking System (PHILOS) plating procedure for a proximal humeral fracture. A 62-year-old female patient with a left humerus proximal 1/3 shaft fracture underwent open reduction and internal fixation with a long PHILOS plate. During the procedure, difficulty was encountered in achieving adequate plate positioning due to osteoporotic bone and fracture comminution. Upon insertion of a distal second last screw, brisk brachial artery bleeding was encountered. Immediate hemostasis measures were taken, and a plastic surgeon was consulted. The brachial artery injury was identified and repaired with a cephalic vein graft harvested and flushed. Postoperatively, the patient developed median nerve neuropraxia. This case highlights the risk of iatrogenic brachial artery injury during left humerus proximal 1/3 shaft fracture fixation, especially in cases with technical challenges due to osteoporotic bone or comminution. Prompt recognition, involvement of vascular surgery, and appropriate management are crucial in mitigating potential devastating consequences. Associated neurological complications, such as nerve injuries, can also occur and should be monitored. Meticulous surgical technique, anatomical awareness, and vigilant monitoring are essential to minimize the risk of vascular and neurological complications during these procedures. Iatrogenic brachial artery injury is a rare but potentially serious complication of humerus proximal 1/3 shaft fracture. Early recognition, multidisciplinary involvement, and appropriate management strategies are crucial in optimizing patient outcomes and preventing long-term morbidity.

Complete Correction following Temporary Hemiepiphysiodesis using 2-hole Reconstruction Plates among Skeletally Immature Patients with Angular Deformities around Knees: A Descriptive Cross-sectional Study.

INTRODUCTION: Studies have shown that 2-hole reconstruction plates can be used effectively as tension band plates for temporary hemiepiphysiodesis. However, limited data is available regarding the effectiveness of such plates in terms of complete correction rates. This study was aimed to find out the prevalence of complete correction following temporary hemiepiphysiodesis using 2-hole reconstruction plates among skeletally immature patients with angular deformities around knees. METHODS: A descriptive cross-sectional study was carried out among skeletally immature patients with angular deformities around knees undergoing temporary hemiepiphysiodesis after getting approval from the Institutional Review Committee (Reference number: B&BIRC-23-05). The data were collected between 1 January 2012 to 31 December 2018. All skeletally immature patients with angular deformities around knees undergoing temporary hemiepiphysiodesis using 2-hole reconstruction plates were included. Patients who required additional procedures or implants for deformity correction and those who did not provide consent were excluded. Convenience sampling method was used. Point estimate at 95% Confidence Interval was calculated. RESULTS: Among 102 patients, 66 (64.70%) patients achieved complete correction (59.97-69.43 at 95% Confidence Interval). Mean age of the patients was 8.21±3.11 years and 43 (65.15%) were males and 23 (34.84%) were females. CONCLUSIONS: The prevalence of complete correction following temporary hemiepiphysiodesis using 2-hole reconstruction plate among skeletally immature patients with angular deformities around knees was lower than that reported in other international studies.

Postoperative maxillary stability after Le Fort I osteotomy using a u-HA/PLLA system: three-dimensional analysis by surface superimposition based on virtual Le Fort I osteotomy.

The postoperative stability achieved with Le Fort I osteotomy (LFI) using bioabsorbable systems remains controversial. A new method - multipoint measurement method - was devised for detailed three-dimensional examination of postoperative stability following LFI, and the stability after LFI when using SuperFIXSORB-MX made of u-HA/PLLA was investigated. Thirty-one patients who underwent LFI using SuperFIXSORB-MX were evaluated retrospectively. The patients were divided into four malocclusion types: open bite, mandibular retrognathia, mandibular protrusion, and facial asymmetry. Seven maxillary reference points were measured three-dimensionally using computed tomography scans obtained preoperatively (T0), 4 days post-surgery (T1), and 1 year post-surgery (T2). Surgical changes (T1-T0) and the postoperative discrepancy (T2-T1) of the maxilla were analysed to evaluate postoperative stability by surface superimposition of the virtual LFI segments. Postoperative discrepancy was the largest for the facial asymmetry type, ranging from 0.75 ± 0.45 mm to 0.98 ± 0.52 mm in three-dimensional distance (minimum to maximum mean ± standard deviation values for the individual reference points). The relapse at U1 was 16% in the transverse axis, and the anterior nasal spine moved further upward by 17% of the amount of movement of the maxilla. Fixation with SuperFIXSORB-MX was considered to be within clinically acceptable limits.

PA Screw Versus Plate Fixation for Posterior Malleolar Fracture, Systematic Review and Meta-analysis of Complications and Functional Results.

Fixation methods for posterior malleolar fracture (PMF) are a source of great controversy. This study aims to compare complications, clinical, and radiological outcomes between PA screws and posterior plate in PMF using current literature. A systematic search strategy was conducted following the PRISMA protocol. Medline (PubMed), Embase (Elsevier), and Lilacs databases were used to identify complication rates (infection, nonunion, loss of reduction, osteoarthrosis, and sural nerve injury) and to compare reported functional outcomes. The level of evidence in the articles was assessed using the GRADE tool. The studies eligible for meta-analysis were processed using The Review Manager version 5.4.1 software. Twelve articles met the inclusion criteria; 5 articles were included for subgroup meta-analysis. Overall infection rate, loss of reduction and sural nerve injury were each 2%. Osteoarthritis rate was 10%. There was no difference in risk reduction for infection rate (RD = 0.01; 95% CI: -0.03 to 0.06; p = .50), loss of reduction (RD = -0.00; 95% CI: -0.03 to 0.03; p = .88), sural nerve injury (RD = 0.01; 95% CI: -0.03 to 0.04; p = .70), osteoarthrosis (RD = -0.00; 95% CI: -0.09 to 0.09; p = .97), functional (MD = 0.70; 95% CI: -1.06 to 2.45; p = .44) or pain scores (MD = 0.12; 95% CI: -0.31 to 0.55; p = .58), nor deficit in dorsiflexion (MD= -0.26; 95% CI: -1.64 to 1.12; p = .71). There were no clinical nor radiological significant differences when comparing fixation of PMF with plates or PA screws. With current literature it is not possible to establish the superiority of either fixation.

Closed-reduction Intramedullary Screw in Fractures of the Proximal Phalanges of the Digits of the Hand: A Series of Three Cases.

The most frequent skeletal injuries are hand fractures, which constitute around 20% of all fractures. Fractures of the phalanx are usual, comprising 6% of all fractures. Proximal phalanx fractures arise more often. The main goals of the care are to repair the anatomy, reduce the damage to soft tissue, and mobilize the damaged fingers as soon as stabilization of the fracture allows it. The present report is intended to examine the clinical and radiation effects of proximal phalanx fractures in patients treated with intramedullary screw fixation who underwent closed reduction. We report three consecutive cases of proximal phalanx fracture: two basal fractures and one simple shaft fracture. They were treated surgically with closed reduction with intramedullary headless compression screws. The preoperative magnitude of the angulation of the proximal phalanx averaged 30.3° (range: 13° to 42°). Two patients presented rotational deformity. The clinical findings were measured using the abbreviated version of the Disabilities of the Arm, Shoulder and Hand (Quick-DASH) questionnaire, and the range of motion and functional results were assessed. Complications were observed over a span of at least 3 months. The patients displayed complete active flexion-extension proximal interphalangeal joint and flexion-extension metacarpophalangeal joint without rotative deformity. The scores on the QuickDASH were satisfactory (mean: 2.3; range: 0 to 4.5). No secondary surgeries were performed, and complications were not observed. Intramedullary fixation of proximal phalanx fractures with cannulated tension screws has been shown to be a safe operation, resulting in outstanding functional performance and an early recovery. The fracture is minimized and properly consolidated by the patients.

Comparison between anterior-to-posterior screw fixation versus posterolateral approach plate fixation for posterior malleous fracture: A systematic review and meta-analysis.

PURPOSE: There are two main surgical fixation methods for the posterior malleolar fractures (PMFs), the anterior-to-posterior (AP) screws or via the posterolateral (PL) approach utilizing a buttress plate. This review aims to compare the clinical outcome between the AP screw fixation and the PL plate fixation for treating PMFs. METHODS: We searched all relevant publications about PMFs treated with AP screws or PL plates through electronic databases including the PubMed, the Cochrane Library, the Embase, the Wiley online library and the Web of Science. The meta-analysis was conducted to evaluated clinical outcomes including reduction quality, post-operative function and complications. RESULTS: Six studies (one single randomized controlled trial and five retrospective cohort studies) were enrolled. 172 patients underwent AP screw fixation and 214 patients underwent PL plate fixation with a total of 386 patients (169 males and 217 females). The PL plating group yielded better AOFAS scores(MD = 6.97, 95 % CI=[4.68, 9.27], P＜0.00001, I2 =0 %) and was more likely to achieve excellent anatomical reduction(OR=5.49, 95 % CI=[1.06, 28.42], P = 0.04, I2 =80 %). No differences were found in the bad reduction quality, incidences of complications (arthritis, neuralgia, superficial wound healing problems and implant failure), the walking VAS scores and the dorsiflexion restriction degrees. CONCLUSION: We suggest that the PL plate fixation method has the clinical benefit of achieving anatomical reduction and better AOFAS scores over the AP screw fixation for treating PMFs. No differences were found in the incidences of complications ( arthritis, neuralgia, superficial wound healing problems and implant failure), the walking VAS scores and the dorsiflexion restriction degrees. The posterior approach and the direct reduction are recommended for the treatment of the PMFs. LEVEL OF CONFIDENCE: Ⅱb.

Impact and torsional behavior of additive layer-manufactured biopolymer: An advancement for orthopedic applications.

Distal ulna locking bone plates (DLBPs) are commonly employed in the treatment of distal ulna fractures. However, commercially available metallic bone plates experience stress shielding and lack corrosion resistance. Poly lactic acid (PLA) is highly favored biopolymer due to its biocompatible and bioabsorbable nature with human tissues. The use of additive layer manufacturing (ALM) is gaining attention for creating customized implants with intricate structures tailored to patient autonomy. ALM-based PLA bone plates must provide high resistance against impact and torsional forces, necessitating the adjustment of printing process parameters. This study focuses on examining the influence of key printing parameters, on the impact strength and torque-withstanding capability of DLBPs. Experimental results, along with microscopic images, reveal that an increase in infill density (IF) and wall thickness imparts strong resistance to layers against crack propagation under impact and torsional loads. On the contrary, an increase in layer height and printing speed leads to delamination and early fracture of layers during impact and torsional testing. IF significantly contributes to improving the impact strength and torque-withstanding capability of DLBPs by 70.53% and 80.65%, respectively. The study highlights the potential of the ALM technique in developing DLBPs with sufficient mechanical strength for biomedical applications.

Superior versus anteroinferior plating for mid-shaft clavicle fractures: a randomized clinical trial.

BACKGROUND: Clavicle fractures represent 2.5-4% of all fractures observed in emergency services. 80% occurs in the middle third. Treatment by plating requires a higher level of evidence. OBJECTIVE: To compare the functional outcomes of mid-shaft clavicle fractures managed with superior plating compared to anteroinferior plating. TRIAL DESIGN: A randomized, double-blind, parallel, superiority clinical trial. PATIENTS AND METHODS: Patients with fractures of the clavicles AO15B1 and AO15B2 were studied. Patients were randomized to be treated with either 3.5 mm superior or anteroinferior plating. A rehabilitation program was designed for both groups. The primary outcome measure was the Disability of Arm, Shoulder, and Hand (DASH) score; secondary outcomes included pain, union rate, and complication rates. RESULTS: Twenty-eight patients were studied and were eligible for analysis. Significant differences were found in the function assessed with the DASH score at 30 days for the superior plating compared with anteroinferior (43.74 vs. 29.26, respectively, p = 0.027), 60 days (23.97 vs. 11.18, p = 0.021), and 90 days (9.52 vs. 3.5, p = 0.016). One loosening with superficial infection was found with superior plating. CONCLUSIONS: Using an anteroinferior reconstruction plate in diaphyseal fractures offers better functional results than the upper plate in patients with fractures of the middle third of the clavicle.

ANTECEDENTES: Las fracturas de clavícula comprenden el 2.5-4% de todas las fracturas observadas en los servicios de emergencia. El 80% se presentan en el tercio medio. La posición de la placa como tratamiento requiere mayor nivel de evidencia. OBJETIVO: Comparar los resultados funcionales de las fracturas diafisarias de clavícula manejadas con placa superior versus placa anteroinferior. MÉTODO: Ensayo clínico aleatorizado, doble ciego, paralelo, de superioridad. Se estudiaron pacientes con fractura diafisaria de clavícula AO15B1 y AO15B2. Se manejaron con placa de reconstrucción de 3.5 mm colocada en forma superior o anteroinferior. Se diseñó un programa de rehabilitación para ambos grupos. El resultado primario fue medido con el cuestionario DASH y los resultados secundarios incluyeron dolor, presencia de consolidación y complicaciones. RESULTADOS: Fueron elegibles para análisis 28 pacientes. Se encontraron diferencias significativas de la escala DASH a los 30 días para la maniobra superior comparada con la inferior (43.74 vs. 29.26, respectivamente; p = 0.027), a los 60 días (23.97 vs. 11.18; p = 0.021) y a los 90 días (9.52 vs. 3.5; p = 0.016). CONCLUSIONES: El uso de placa de reconstrucción anteroinferior en las fracturas diafisarias ofrece mejores resultados funcionales en comparación con la placa superior en pacientes con fracturas de tercio medio de clavícula.

Sustentaculum fracture fixation with lateral plate or medial screw fixation are equivalent.

BACKGROUND: Fixation of sustentaculum tali fractures is important to maintain the biomechanical function of the subtalar joint. A common method of fixation is securing the sustentacular fragment by way of a laterally based locking plate (LP). A medial approach with a single screw (MS) has been proposed as an alternative method of fixation. METHODS: Five pairs of formalin-preserved cadaveric ankles with the subtalar joint and interosseous ligaments intact ("osseous cadavers") and four pairs of fresh-frozen cadaveric ankles with soft-tissue preserved dissected from mid-tibia down ("soft tissue cadavers") were used in the study. The left ankle was randomly assigned to one of the two fixation methods (LP or MS), while the right ankle was the opposite. These same steps for fixation were repeated for six synthetic ankle models. All models were loaded with a body mass of 80 kg. Statistical differences between LP and MS stiffness were determined using a paired t-test in cadavers and un-paired t-tests in synthetic ankles. RESULTS: For osseous cadaveric ankles, LP demonstrated a mean stiffness of 232.95(SD: 59.96) N/mm, while MS was 239.72(SD:131.09) N/mm (p = 0.9293). For soft tissue cadaveric ankles, LP mean stiffness was 133.58(SD:37.84) N/mm, while MS was 134.88(SD:20.75) N/mm (p = 0.9578). For synthetic ankles, LP mean stiffness was 220.40(SD:81.93) N/mm, while MS was 261.50(SD:100.21) N/mm (p = 0.6116). CONCLUSIONS: Across all three models, there was no significant difference between LP and MS methods. Retrospective observational studies are recommended to assess patient outcomes from each of the methods.

Use of metatarsal hook plates in the treatment of multifragmentary patellar fractures - A case series.

The surgical management of patellar fractures typically yielded satisfactory results; however, in situations involving multifragmented patellar fractures or those affecting the inferior pole, it became imperative to employ alternative osteosynthesis techniques that enhanced stability, enabled early rehabilitation initiation, prevented implant failure, and avoided reduction loss before fracture consolidation. In this context, an unconventional osteosynthesis alternative was presented, utilizing an anatomically designed hook plate originally intended for the fifth metatarsal. This technique was successfully applied in three patients with multifragmentary patellar fractures, allowing stable fixation of small or marginal fragments through the plate's hooks without compromising vascularity. Fracture consolidation was achieved without reduction loss, and owing to its low profile, patient discomfort and irritation were minimized compared to traditional tension band or wiring techniques. This approach suggested the potential to forego early plate removal, thereby contributing to a more effective management of patellar fractures. Level of evidence: IV.

Comparison of Locked Plates and Blade Plates for Varus Osteotomy of the Proximal Femur by the Finite Element Method.

Objective: The present study compared the difference in load and pressure distribution behavior of the blade plate and locked plate for varus osteotomy of the proximal femur per the finite element method. Methods: Modeling was performed by scanning a medium-sized left femur with medial valgus deformity made of polyurethane. Results: The stiffness of the locked plate is higher compared with that of the blade plate. However, this difference was not significant. In addition, the locked plate has proximal locking screws to ensure that the bending moments on the screws are smaller during loading. Conclusion: In summary, both plates are well-established and effective. However, the study using the finite element method plays a fundamental role in understanding the load and pressure distribution of the implant. Moreover, it opens up new possibilities for further studies, including surgical proposals and customized implant materials.

Minimally Invasive Revision of Luque Plate Instrumentation: A Case Report.

Extension of existing spinal fusions may necessitate the removal of or linkage to prior constructs. Knowledge of previously placed instrumentation is critical to success in these revision scenarios. The Luque spinal instrumentation system, developed in the late 1980s, is a legacy pedicle screw and plate system that may be encountered during revision operations today. A 67-year-old male with a remote history of L4-S1 fusion with Luque instrumentation presented with bilateral lower extremity neurogenic claudication due to adjacent segment disease at L3-4. Decompression and extension of fusion to the L3-4 level were performed using minimally invasive techniques. Of note, posterior instrumentation was extended by removing prior L4 pedicle screws with a 7 mm female hexagonal driver through tubular retractors, leaving the Luque plates in place, placing modern pedicle screws at L4 (through the plates) and L3, and linking these with standard rods. The surgery and post-operative course were uncomplicated, and the patient experienced complete resolution of his pre-operative claudication symptoms. Extension of prior Luque plate instrumented fusion can be accomplished minimally invasively without removing the plates themselves, resulting in greater operative efficiency and less surgical morbidity.

Comparison of deltoid split versus deltopectoral approaches in locking plate fixation for proximal humerus fracture / 中华创伤骨科杂志

Objective:To compare the medium and long-term efficacy between the deltoid split approach and the conventional deltopectoral approach in locking plate fixation for proximal humerus fractures.Methods:A retrospective study was performed in the 65 patients with proximal humerus fracture who had been operatively treated at Department of Orthopedics, The Third People's Hospital of Nantong from January 2018 to December 2020. They were 20 males and 45 females with an age of (64.6±9.2) years. Of them, 34 were assigned to fixation with proximal humerus internal locking system (PHILOS) through the deltoid split approach (minimally invasive group), and 31 to PHILOS fixation through the deltopectoral approach (conventional group). The 2 groups were compared in terms of general data, operation time, intraoperative blood loss, hospital stay, fracture union time, intraoperative fluoroscopy, postoperative 2-year imaging scores, and Constant-Murley shoulder score at the last follow-up.Results:There was no significant difference in the preoperative general data between the 2 groups, showing comparability ( P>0.05). In the minimally invasive group and the conventional group, respectively, the intraoperative blood loss was (97.9±16.6) mL and (155.8±27.4) mL, and the frequency of intraoperative fluoroscopy (12.0±1.8) times and (6.7±1.8) times, both showing a statistically significant difference ( P<0.05). There was no significant difference in operation time, hospital stay, or fracture union time ( P>0.05). All patients were followed up for (43.9±5.5) months. There was no statistically significant difference between the 2 groups in postoperative 2-year imaging scores ( P>0.05). Compared with the conventional group, patients in the minimally invasive group had significantly lower Constant-Murley strength scores and significantly lower Constant-Murley scores for the Neer four-part fractures ( P<0.05). Postoperatively, one case of screw protrusion and one case of complete ischemic necrosis occurred in both groups while one case of partial ischemic necrosis was observed in the minimally invasive group and 3 cases of partial ischemic necrosis were observed in the conventional group. Conclusions:In locking plate fixation for proximal humerus fractures, compared with the deltopectoral approach, the deltoid split approach shows advantages of less soft tissue damage, less intraoperative bleeding, and less destruction of the blood supply to the humeral head. However, the deltopectoral approach may be more appropriate for the Neer four-part fractures.

The modified Bikini approach used for fixation of acetabular fracture with an integrated wing-shaped anatomical locking plate / 中华创伤骨科杂志

Objective:To investigate the effectiveness of the modified Bikini approach in the fixation of acetabular fracture with an integrated wing-shaped anatomical locking plate.Methods:A retrospective study was conducted to analyze the data of 54 patients with acetabular fracture who had been treated at Department of Trauma Orthopedics, Orthopedic Medical Center, The Third Hospital Affiliated to Southern Medical University from May 2017 to June 2021. The patients were divided into 2 groups based on different surgical approaches: an observation group [26 cases, 6 males, 20 females; aged 40.0 (29.8, 46.8) years] treated with fixation with an integrated wing-shaped anatomical locking plate through the modified Bikini approach, and a control group [28 cases, 10 males, 18 females; aged 34.5 (24.0, 43.5) years] treated with fixation with an integrated wing-shaped anatomical locking plate through the lateral-rectus approach. The incision length, operation time, intraoperative bleeding, length of hospital stay, quality of postoperative fracture reduction, visual analog scale (VAS) for pain, hip function, Vancouver Scar Scale (VSS) and Patient and Observer Scar Assessment Scale (POSAS) were compared between the 2 groups.Results:The differences in the preoperative general data between the 2 groups were not statistically significant, indicating comparability ( P>0.05). There were no statistically significant differences between the 2 groups either in terms of incision length, operation time, intraoperative bleeding, or hospital stay ( P>0.05). The 2 groups were not significantly different in the excellent/good rate of fracture reduction [100.0% (26/26) versus 92.9% (26/28)], VAS at 1 month postoperation [2.0(1.0, 3.0) versus 2.0(1.0, 3.0)], or the modified Merle d'Aubigné and Postel hip score at 12 months postoperation [13.5(12.3, 14.8) versus. 14.0(13.0, 15.0)] ( P>0.05). However, the VSS [4.50(4.00, 6.00)] and POSAS (29.85±10.05) at 12 months postoperation in the observation group were significantly lower than those in the control group [6.50(5.00, 8.25) and 37.11±11.75] ( P<0.05). Conclusion:In the fixation of acetabular fracture with an integrated wing-shaped anatomical locking plate, the modified Bikini approach can not only achieve as fine early clinical efficacy as the lateral-rectus approach, but also demonstrate the aesthetic advantages of smaller incision scar and more hidden incision.

Comparison of Locked Plates and Blade Plates for Varus Osteotomy of the Proximal Femur by the Finite Element Method / Avaliação entre placas bloqueadas e placas lâmina para osteotomia varizante do fêmur proximal pelo método dos elementos finitos

Abstract Objective: The present study compared the difference in load and pressure distribution behavior of the blade plate and locked plate for varus osteotomy of the proximal femur per the finite element method. Methods: Modeling was performed by scanning a medium-sized left femur with medial valgus deformity made of polyurethane. Results: The stiffness of the locked plate is higher compared with that of the blade plate. However, this difference was not significant. In addition, the locked plate has proximal locking screws to ensure that the bending moments on the screws are smaller during loading. Conclusion: In summary, both plates are well-established and effective. However, the study using the finite element method plays a fundamental role in understanding the load and pressure distribution of the implant. Moreover, it opens up new possibilities for further studies, including surgical proposals and customized implant materials.

Resumo Objetivo: Testar a diferença do comportamento de distribuição de cargas e pressões da placa lâmina comparativamente com a placa bloqueada para osteotomia varizante do fêmur proximal através do método de elementos finitos. Métodos: A modelagem foi realizada através do escaneamento de um fêmur esquerdo com deformidade medial em valgo fabricado em poliuretano de tamanho médio. Resultados: Como resultados, pode-se inferir que a rigidez da placa bloqueada é maior do que a da placa lâmina. No entanto, essa diferença não foi significativa e, além disso, a placa bloqueada possui parafusos de travamento proximal para garantir que os momentos de flexão que agem nos parafusos sejam ainda menores durante o carregamento. Conclusão: Em síntese, ambos os materiais são consagrados e eficazes para serem utilizados, porém o estudo pelo método de elementos finitos apresenta papel importante para compreendermos a situação de distribuição de cargas e pressões do implante e abre novas possibilidades para novos estudos, como, por exemplo, o estudo da proposta cirúrgica e materiais a serem implantados de forma individual e personalizada.

The Comparison Between 3.5- and 4.5-mm T-plates for Management of the Patients with Schatzker Type II Tibial Plateau Fractures that Referred to our Emergency Department: A Clinical Trial.

Background: Tibial plateau fractures have become more frequent in recent years. The most prevalent Schatzker classification is type II, which is a lateral tibial plateau fracture with depression. Our null hypothesis was that the 3.5 T-plate and the 4.5 T-plate have no difference in the management of patients with Schatzker type II tibial plateau fractures. Materials and Methods: The current study is a clinical trial that was conducted on patients with tibial plateau fractures. The Knee Society Score (KSS) was this study's main outcome. Tourniquet time (TT) and patient quality of life using the 36-item Short Form Survey Instrument (SF-36) were secondary goals of the outcomes measurement study. VAS measured pain. Among 176 patients, 89 and 87 of cases underwent surgical treatment with 3.5-mm (group A) and 4.5-mm (group B) T-plate, respectively. The data were entered into SPSS software (version 25, IBM Corporation, Armonk, NY) and analyzed. Results: In our study, we evaluated 176 patients with a mean age of 34.8 ± 15.2 years. Functional and clinical KSS scores were similar between the two groups throughout follow-up (P > 0.05). Regarding the other variables of VAS, TT, SF-36 physical function, and SF-36 mental health, no significant difference was observed between the two groups, and the two groups had similar averages in terms of these indicators (P > 0.05). Conclusion: According to the results, both plates had the appropriate functional outcomes in patients with split depression tibial plateau fracture.

Fixation of Mallet Fractures Using a Modified Hook Plate Technique: A Prospective Case Series of 17 Patients.

Objective Various modalities have been suggested to manage mallet fractures; however, inappropriate treatment can lead to extension lag, a swan neck deformity, or arthritis of the distal interphalangeal joint (DIPJ). The current study aimed to evaluate the results (functional, radiological, and complications) of open reduction and internal fixation (ORIF) of mallet fractures using low-cost hook plates fabricated from low-profile titanium mini plates. Methods A prospective case series of 17 consecutive patients (average age of 32.3 years) with mallet fractures (six were Wehbe Type IB and 11 were Wehbe Type IIB). Eleven (64.7%) were males. The affected hand was dominant in all patients, and the affected digit was the index in 6 (35.3%), the ring in 5 (29.4%), the small in 3 (17.65%), and the middle in 3 (17.65%) patients. The same fellowship-trained hand surgeon performed all surgeries. Results The average operative time was 37.65 minutes. After an average follow-up of 10.94 months (range 6-27), the average DIPJ motion was 50° ° (range 20°-70°), the extensor lag was noted in 4 (23.5%) patients, and complications were reported in 6 (35.29%) patients. According to Crawford criteria, 6 (35.3%) patients achieved excellent results, 7 (41.2%) achieved good results, and 4 (23.5%) achieved fair results. Conclusion The modified hook plate technique for fixation of mallet fractures is a beneficial, economical, yet demanding technique that adequately provides stable fixation to allow early DIPJ motion with acceptable functional outcomes.

Comparación Placas de Titanio vs. Placas Reabsorbibles en Fracturas de Orbita: Revisión de literatura / Comparison of Titanium Plates vs. Resorbable Plates in Orbital Fractures: Literature Review

RESUMEN Introducción: Los tratamientos para fracturas de órbita se basan en la corrección del defecto de las lesiones orbitarias de tipo blow in y blow out (o de estallido), mediante diversas placas y mallas biocompatibles con el organismo, dándose una cicatrización de primera generación evitando un callo óseo y una fijación más rígida. Para el diagnóstico de este tipo de lesiones tenemos inflamación periorbitaria, enoftalmos, diplopía, equimosis, hemorragia subconjuntival. Existen diversos materiales reconstructivos siendo estos compuestos por distintas materias primas, como son los aloplásticos y autógenos; donde encontramos varios tipos como placas de titanio y las placas reabsorbibles siendo estas las más comunes y usadas actualmente, por su bajo estímulo a reabsorciones óseas y evitando efectos secundarios a largo plazo. Estas placas presentan diversos grados de ductilidad y resistencia. Se informó sobre varias complicaciones según el tipo de placas como es la cicatrización, las cirugías postquirúrgicas en caso de placas de titanio, etc. El objetivo de esta revisión es la evaluación de la eficacia las placas reabsorbibles versus placas de titanio en fracturas de órbita. Materiales y métodos: La investigación es de carácter documental, descriptivo y no experimental. En el cual se emplea una metodología de identificación e inclusión de artículos científicos tipo prisma. Resultados y conclusiones: Se verificaron las ventajas y desventajas tanto de las placas reabsorbibles como las de titanio siendo estas similares en la biocompatibilidad con el organismo humano, así como también varias diferencias como el soporte, fuerzas, resistencia de estas, concluyendo que es debatible el material ideal para tratar fracturas de órbita. Se seleccionaron artículos tomando en cuenta el título y objetivos; considerando estudios comparativos, revisiones sistemáticas, revisiones de literatura, los cuales comprendían criterios con respecto a fracturas de órbita y tratamientos quirúrgicos. La búsqueda arrojó 55 artículos en PubMed, 65 en Google, 4 en Scielo y 29 en Science direct, de los cuales se excluyeron libros, monografías, estudios experimentales, dando como resultado 21 artículos para el desarrollo de esta revisión bibliográfica. Y que fueron leídos y analizados en su totalidad, estudiando los objetivos, metodología y conclusión de cada uno de ellos para la posterior comparación.

ABSTRACT Introduction: Treatments for orbit fractures are based on the correction of the defect of blow in and blow out orbital injuries, by means of various plates and meshes biocompatible with the organism, giving a first-generation healing avoiding a bony callus and a more rigid fixation. For the diagnosis of this type of lesions we have periorbital inflammation, enophthalmos, diplopia, ecchymosis, subconjunctival hemorrhage. There are several reconstructive materials being these composed of different raw materials, such as alloplastic and autogenous, where we find several types such as titanium plates and resorbable plates being these the most common and currently used, for its low stimulus to bone resorption and avoiding long-term side effects. These plates have different degrees of ductility and resistance. Several complications have been reported depending on the type of plates, such as scarring, post-surgical surgeries in the case of titanium plates, etc. The objective of this review is to evaluate the efficacy of resorbable versus titanium plates in orbital fractures. Materials and methods: This research are a documentary, descriptive and non-experimental nature. A prism-type methodology of identification and inclusion of scientific articles was used. Results and conclusions: The advantages and disadvantages of both resorbable and titanium plates were verified, being these similar in biocompatibility with the human organism, as well as several differences such as support, forces, resistance of the same, concluding that it is debatable. The ideal material to treat orbital fractures. Articles were selected considering the title and objectives; considering comparative studies, systematic reviews, literature reviews, which included criteria regarding orbital fractures and surgical treatments. The search yielded 55 articles in PubMed, 65 in Google, 4 in Scielo and 29 in Science direct, from which books, monographs, experimental studies were excluded, resulting in 21 articles for the development of this bibliographic review. The 21 articles were read and analyzed in their entirety, studying the objectives, methodology and conclusion of each one of them for subsequent comparison.

Clinical Outcome after Clavicular Hook Plate Fixation for Displaced Medial-End Clavicle Fractures.

Background: Surgery of the medial end of the clavicle remains a challenge for orthopedic surgeons. Moreover, there is no standard surgical procedure for treating displaced fractures or dislocation of the medial clavicle. Thus, the present study aimed to evaluate the safety and efficacy of using a hook plate for treating medial-end clavicular fractures and present functional outcomes. Methods: We retrospectively investigated 18 patients who underwent surgery with a hook plate from July 2016 to December 2021. There were 14 men and 4 women with a mean age of 57.4 years. Fracture union was assessed at follow-up by computed tomography (CT). Other outcome parameters were complications, including implant failure, infection, nonunion, osteolysis of sternal manubrium, and migration of the hook portion. Range of motion (ROM), visual analog scale (VAS), Quick Disabilities of the Arm, Shoulder and Hand (Quick DASH), and American Shoulder and Elbow Society (ASES) scores were evaluated 6 months postoperatively and at the last follow-up. Results: The mean operation time was 43.8 minutes (range, 35-50 minutes) and the mean follow-up was 22.8 months (range, 12-42 months). Bone union was confirmed in all cases. The mean union time was 6.2 months (range, 6-7 months). Implant removal was performed routinely according to the clinical course in 17 cases. The mean implant removal time was 10.0 months (range, 6-14 months). Clinical and functional outcomes measured at the last follow-up were significantly improved compared to those at 6 months postoperatively (p < 0.05). Regarding complications, there were 6 cases (33.3%) of osteolysis of the sternal manubrium. Although the anteroposterior length of the manubrium and hook depth showed significant differences between the non-osteolysis group and the osteolysis group (p = 0.024), ROM, VAS, Quick DASH, and ASES scores were not significantly different between the two groups (all p > 0.05). Conclusions: Clavicle hook plating can be a safe and effective method that can be easily applied with good outcomes if it is used with appropriate surgical planning and technique for medial-end clavicle fracture. CT scans are useful for preoperative planning and postoperative evaluation of bone union or complications.