Objective:To evaluate the efficacy of platelet-rich plasma (PRP) and tranexamic acid (TXA) applied in total knee arthroplasty.Methods:We selected and randomized 84 patients. TXA was applied in 23 patients, PRP in 20, and PRP in combination with TXA in 20. Hemoglobin was measured preoperatively and 24 and 48 hours postoperatively. The function questionnaire, pain scale and gain of knee flexion were monitored until the second postoperative year.Results:There was a difference (p <0.01) in the decrease in hemoglobin 48 hours after surgery between the TXA group and the control and PRP groups. In terms of pain, the TXA group at 24 and 48 hours after surgery and the PRP group at 48 hours after surgery showed advantages (p <0.01). Knee flexion gain in the first 24 hours postoperatively was better in the TXA group (p <0.05).Conclusion:TXA was effective in lowering the drop in hemoglobin level, reducing pain and improving movement gain 48 hours after the procedure. PRP was not effective in reducing bleeding or improving knee function after arthroplasty, but provided better control of postoperative pain. Level of Evidence I, Randomized, blinded, prospective clinical trial.

Background: Foot pathologies can affect the kinetic chain during gait, leading to altered loading at other joints that can lead to subsequent pathologies. Although hallux valgus is the most common foot disease, little has been discussed about the biokinetic effects of hallux valgus on the foot and lower limb. This systematic review evaluated the kinematic, kinetic, and pedobarographic changes of the hallux valgus foot compared to a healthy one. Methods: Several electronic databases were searched up to January 2022, including only cross-sectional studies with clearly defined isolated hallux valgus diseases and healthy groups. Two investigators independently rated studies for methodological quality using the NIH Study Quality Assessment Tool for cross-sectional studies. Kinetic data were extracted, including temporal data, kinematics of the foot joint, kinematics of the proximal lower limb, and pedobarography. We did meta-analyses tests with a random effects model using the metafor package in R. Results: Hallux valgus patients walk slower compared to a disease-free control group −0.16 m/s (95% CI −0.27, −0.05). Hallux valgus patients exhibited significantly reduced coronal plane motion of the hindfoot-shank during preswing 1.16 degrees (95% CI 0.31, 2.00). Hallux valgus patients generated less force in the hallux region 33.48 N (95% CI 8.62, 58.35) but similar peak pressures in the hallux compared to controls. Hallux valgus patients generated less peak pressure at the medial and lateral hindfoot as compared to controls: 8.28 kPa (95% CI 2.92, 13.64) and 8.54 kPa (95% CI 3.55, 13.52), respectively. Conclusion: Although hallux valgus is a deformity of the forefoot, the kinematic changes due to the pathology are associated with significant changes in the range of motion at other joints, underscoring its importance in the kinetic chain. This is demonstrated again with the changes of peak pressure. Nevertheless, more high-quality studies are still needed to develop a fuller understanding of this pathology.

Objective: To perform the correlation between the preoperative tomographic evaluation of patients with calcaneal fracture diagnosis and the access routes of choice, as well as the synthesis materials used.Methods: We reviewed 19 medical records of patients between 23 and 56 years old who underwent calcaneal fracture surgery from 01/01/2014 to 12/31/2015. We evaluated the mechanism of trauma, side, Essex-Lopresti classification, Böhler and Gissane angle in the pre- and postoperative period, Sanders tomographic classification and type of osteosynthesis performed. Angular measurements served as a reference for radiological analysis of the quality of the reduction. Results: 90% of the cases were of joint depression, the other 10% considered extra-articular. The preoperative Böhler angle varied between 5 and 40°, and between 10 and 38° in the postoperative period, and 55% of the fractures had an angular reconstruction considered good (between 20° and 40°). Gissane’s angle, on the other hand, varied between 110 and 170° in the preoperative period, and 102 and 132° in the postoperative period. In the tomographic analysis, Sanders IV classification was predominant (65%), followed by type IIIBC fractures (20%), and fractures type I, IIA and IIIAB (5% each). Osteosynthesis with plate and screw was the most used method (89.47%). Conclusion: Correct use of existing diagnostic imaging resources through radiographic and tomographic results provides the possibility of better preoperative planning in the intra-articular fractures of the calcaneus. However, in this study, there was no difference in the access route and synthesis according to the tomographic classification. Level of Evidence III; Diagnostic Studies; Study of Non-Consecutive Patients.

Objective: To evaluate the outcomes of the metatarsophalangeal arthrodesis (MTPA) of the hallux using a percutaneous technique. Methods: The MTPA of the hallux was performed in a total of 27 feet: 20 patients diagnosed with hallux rigidus and 7 with rheumatoid arthritis. The mean postoperative follow-up time was 30.7 months. The results were evaluated using the visual analogue scale (VAS) for pain, the American Orthopaedic Foot & Ankle Society (AOFAS) forefoot score, and regards to union rate. Results: All 27 patients were operated percutaneously and noticed relief of the pain, with a mean increase of 50.9 points in AOFAS scores and a mean decrease of 7.4 points in the VAS. The mean union time was 10 weeks. There were no cases of nonunion. Conclusion: Percutaneous first MTP arthrodesis proved effective for treating hallux rigidus and degenerative rheumatic pathologies. Level of Evidence IV; Therapeutic Studies; Cases Series.

Background: Hallux valgus (HV) is a common cause of pain and deformity of the forefoot. Minimally invasive chevron Akin (MICA) bunionectomy is a method for HV correction associated with less pain and swelling, with early return to weightbearing in a regular shoe. The purpose of this study was to determine how the MICA procedure affects forefoot width. Methods: Twenty-eight patients (26 female, 2 male; 9 left, 19 right) at a single institution who underwent primary MICA for HV correction by 3 treating surgeons were retrospectively reviewed. Pre- and postoperative hallux valgus angle (HVA), intermetatarsal angle (IMA), distal metatarsal articular angle (DMAA), bony forefoot width, and soft tissue forefoot width were measured by 2 independent observers. Radiographic measurements were calibrated using fifth metatarsal length. Wilcoxon signed rank test compared changes in HVA, IMA, DMAA, and forefoot widths. Pearson correlation coefficient evaluated association between HVA, IMA, DMAA, and changes in forefoot width. Results: At mean follow-up of 5.4 (range 3-13.7) months, bony forefoot width decreased significantly by 3.7 mm (4%, P < .001) and soft tissue forefoot width decreased by 2.5 mm (2%, P < .01). Decrease in HVA was moderately correlated with change in bony forefoot width ( r = .38, P < .05) and change in soft tissue forefoot width ( r = .45, P < .05). Decrease in IMA was moderately correlated with change in bony forefoot width ( r = .45, P < .05) and change in soft tissue forefoot width ( r = .44, P < .05). Conclusion: The MICA procedure resulted in modest, yet significant, decrease in both bony and soft tissue forefoot width. Decrease in HVA and IMA demonstrated moderate correlation with changes in forefoot width. Patients can be counseled on these changes leading up to, and after, MICA bunionectomy surgery. Level of Evidence: Level III, retrospective comparative series.

Objective: To evaluate the postoperative results of patients who underwent surgical treatment of hallux valgus with a modified Reverdin-Isham (RI) technique and to compare the achieved correction with that reported by studies using the original technique. Methods: This is a retrospective study with patients with mild to moderate hallux valgus who underwent surgery from June 2010 to July 2019. All patients were operated using the modified RI technique. Data were collected through the American Orthopaedic Foot and Ankle Society (AOFAS) questionnaire, in addition to pre and postoperative radiographic studies of the intermetatarsal angle (IMA), the hallux valgus angle (HVA), and the distal metatarsal articular angle (DMAA). Results: The mean postoperative follow-up was 30.1 months, and the mean age of patients was 56.4 years. The median AOFAS score in the postoperative period was increased by 56 points. The mean HVA was reduced in 16.5°, the mean IMA was reduced in 4.3°, and the mean DMAA was reduced in 10°. There were no cases of displacement or deviation of the first metatarsal head during the postoperative follow-up. Conclusion: The modified RI technique provided considerable stability to the osteotomy, in addition to a significant correction of the measured angles and an improvement in AOFAS scores, demonstrating itself as an effective technique for correcting mild to moderate hallux valgus. Level of Evidence IV, Therapeutic Studies, Case Series.

Objective: The purpose of this study was to systematically review the literature regarding the use of hamstring tendon (HT) autograft for extensor hallucis longus (EHL) reconstruction. Methods: A systematic search for studies addressing the use of HT autograft for reconstruction of nonrepairable EHL tendon injuries was performed in December 2021. The databases searched include Embase, Medline, Europe PMC, Cochrane, and Scopus. Predetermined inclusion and exclusion criteria were implemented, and appropriate studies were selected for review. Results: The database search resulted in one study that met the inclusion and exclusion criteria. Three additional studies met inclusion and exclusion criteria after screening the references of the selected study. A total of four studies were included in the final review. Clinical presentation, surgical technique, postoperative rehabilitation, clinical follow-up, and outcomes were recorded. All four studies reported single cases of EHL tendon reconstruction using a semitendinosus autograft with satisfactory clinical results and no complications. Patients may experience a five degrees decrease in range of motion or minimal decrease in hallux extension strength; however, all patients were asymptomatic and reported no limitations. Conclusion: Four case reports regarding EHL tendon reconstruction were reviewed and demonstrated using a semitendinosus autograft as a viable option with favorable outcomes and no complications. Level of Evidence IV; Systematic Review

Objective: To analyze outcomes of hallux valgus surgical correction using the Reverdin-Isham technique by means of clinical and radiographic studies. Methods: We retrospectively assessed 43 feet (38 patients) with moderate to severe hallux valgus treated from June 2009 to July 2014. Mean age at surgery was 59 years; mean postoperative follow-up time was 79 months. Patients were assessed at pre- and postoperative periods both functionally, by the American Orthopaedic Foot and Ankle Society (AOFAS) score, and radiographically, by the hallux valgus angle (HVA), intermetatarsal angle (IMA), distal metatarsal articular angle (DMAA), and shortening of 1st metatarsal bone. Results: AOFAS scores had a mean increase of 55 points. Mean HVA decreased 14.5°, whereas IMA and DMAA exhibited a mean decrease of 3.8° and 9.7°, respectively. Mean shortening of the first metatarsal bone was 3mm. Conclusion: The presented surgical technique showed to be effective to correct mild to moderate hallux valgus, resulting in appropriate angle correction angular and significant increase in AOFAS scores. Level of Evidence IV; Therapeutic Studies; Case Series.