BACKGROUND: To analyze recent literature comparing clinical outcomes of displaced intra-articular calcaneal fractures (DIACF) treated with open reduction and internal fixation using the extensile lateral approach (ELA) vs the minimally invasive sinus tarsi approach (STA), with a focus on wound complications.
METHODS: A comprehensive literature search was conducted utilizing PubMed, EMBASE, and Cochrane Library databases following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Studies published between 2013 and 2022, level of evidence (LOE) I-III, head-to-head comparative studies reporting on clinical outcomes after DIACFs treated with ORIF using ELA versus STA, and literature with full-text written in English were included. Data collection included: publication year, study design, number of surgeons, number of participants, demographic data (mean age at time of surgery, percent male, body mass index, medical co-morbidities), preoperative data (mechanism of injury, Sanders classification, time from injury to surgical fixation), intraoperative data, and postoperative clinical and radiographic outcomes (Böhler angle, angle of Gissane, calcaneal height/length/width).
RESULTS: A total of 21 articles (4 randomized control trials, 17 cohort studies) comprising of 2086 patients with calcaneal fractures, treated with either ELA (n = 1129) or STA (n = 957) met inclusion criteria. The risk of postoperative wound-related complications (RR 2.82, 95 % CI: 2.00-3.98, I2=27 %) and the risk of reoperation (RR 1.85, 95 % CI: 0.69-5.00, I2=67 %) was higher in ELA patients comparted to STA patients. However, the increased risk of postoperative wound-related complications with an ELA vs. STA was shown to be trending downward in recent publications. The ELA group also experienced longer time to surgery, extended operative times, and prolonged hospital stays when compared to the STA group. Radiographic measurements at final follow-up, including Böhler angle, angle of Gissane, as well as calcaneal height, length, and width, showed no statistically significant differences between the two groups.
CONCLUSIONS: Surgical treatment of calcaneal fractures utilizing the ELA continues to have an increased rate of complications and reoperation when compared to the less invasive STA, yet recent trends in the literature show that this rate is decreasing. Operative treatment of calcaneal fractures via either an ELA or STA can both achieve comparable postoperative radiographic outcomes.
METHODS: Therapeutic Level III.

The aim of this study was to compare the radiological and functional outcomes of the extended lateral and sinus tarsi approaches for managing displaced intraarticular calcaneal fractures. This retrospective study involved 44 patients with displaced intra-articular calcaneal fractures. The patients were treated with either the extended lateral or sinus tarsi approach and followed up for at least a year. The radiological and clinical outcomes were compared between the approaches. The waiting time for surgery was shorter and the complication rate was lower in the sinus tarsi approach group than in the other group. There were no significant differences in the American Orthopedic Foot and Ankle Society ankle-hindfoot score, Foot Function Index, or visual analog scale score between the groups. In both groups, the radiological outcomes (Böhler angle, calcaneal width, and calcaneal height) were better postoperatively than preoperatively. The sinus tarsi approach is a safe and effective alternative to the extended lateral approach for managing displaced intraarticular calcaneal fractures. It is associated with a lower complication rate and a shorter waiting time for surgery than the extended lateral approach, with similar functional and radiological outcomes.

UNASSIGNED: The traditional lateral extensile approach to the calcaneus allows for excellent visualization but is associated with high wound complication rates. The sinus tarsi approach has been shown to produce similar radiographic outcomes with much lower rates of wound complications. The purpose of this study is to prospectively determine clinical and radiographic outcomes in calcaneus fractures treated with a sinus tarsi approach.
UNASSIGNED: Twenty-nine patients with 30 calcaneus fractures underwent operative fixation through a sinus tarsi approach and were prospectively evaluated. Routine pre- and postoperative radiographs were obtained, in addition to computed tomography (CT) scans at 6 weeks and 12 months after surgery. Patient-reported outcomes including American Orthopaedic Foot & Ankle Society (AOFAS) score, visual analog scale (VAS) pain score, Veterans Rand 12-Item Health Survey (VR-12), and Foot Functional Index (FFI) were recorded. Patients were followed for a minimum of 1 year postoperation.
UNASSIGNED: Twenty-one patients with 22 calcaneus fractures completed 1 year of follow-up. At 12 months postoperation, 20 of 22 patients (91%) had 0 to 2 mm of fracture displacement at the posterior facet on CT scans whereas 2 of 22 patients had 2 to 4 mm of fracture displacement. There was no significant change in posterior facet fracture displacement comparing 6-week and 12-month postoperative CT scans (P > .99). Mean postoperative Bohler angle was 26.1 degrees compared to 13.2 degrees preoperatively. All patients had complete union of fracture site. There were no major wound complications. Four of 22 patients (18.2%) had minor wound complications. AOFAS, FFI, and VAS pain scores improved postoperatively but were not found to correlate with Bohler angle or critical angle of Gissane.
UNASSIGNED: We found that in select patients excellent anatomic alignment and good clinical outcomes with low wound complication rates can be achieved when fixing calcaneus fractures through the sinus tarsi approach.
UNASSIGNED: Level II, prospective cohort study.

BACKGROUND: Optimal surgical fixation for displaced intra-articular calcaneal fractures (DIACF) remains a subject of debate, particularly regarding the superiority between screw fixation and plate fixation via the sinus tarsi approach (STA). This review aims to determine the preferred treatment for DIACF and compare the outcomes of minimally invasive surgery options.
METHODS: Our study involved thorough searches across multiple electronic databases, including PubMed, Cochrane, Embase, and Web of Science, to identify all relevant publications on distal intra-articular fractures of the calcaneus (DIACFs) that were fixed using cannulated screws or plates via STA. Through a comprehensive meta-analysis, we evaluated several outcomes, including post-operative function, radiological measurements, and complications.
RESULTS: A total of 728 patients from 7 studies met the inclusion criteria. Among them, 435 patients underwent screw fixation via STA, and 373 patients underwent plate fixation via STA. The study found no statistically significant differences between the screw fixation and the plate fixation via sinus tarsi approach (STA) in terms of AOFAS scores, Bohler\'s angle, Gissane\'s angle, sural nerve injury, secondary subtalar arthrodesis and reoperation. Compared with screw fixation, plate fixation via STA can reduce reduction loss of Bohler\'s angle (WMD = - 1.64, 95% CI = [- 2.96, - 0.31], P = 0.06, I2 = 59%), lower the incidence of fixation failure (OR = 0.32, 95% CI = [0.13, 0.81], P = 0.78, I2 = 0%), and decrease intra-articular step-off (WMD = - 0.52, 95% CI = [- 0.87, - 0.17], P = 0.66, I2 = 0%).
CONCLUSIONS: Plate fixation demonstrates superior capability in restoring calcaneal width, maintaining Bohler\'s angle, and minimizing intra-articular step-off, thereby maintaining better reduction of the subtalar articular surface. In addition, plate fixation exhibits the modest complication rate and a low incidence of fixation failure. Therefore, we recommend the use of plate fixation through the STA, especially for complex and comminuted intra-articular calcaneal fractures.

BACKGROUND: The extensile lateral approach (ELA) and sinus tarsi approach (STA) are commonly utilized for surgically treating calcaneal fractures. This study compared the outcomes of ELA and STA in the management of calcaneal fractures and assessed the influence of postoperative quality of reduction on functional and pain scores.
METHODS: The study included 68 adults with Sanders type-II and type-III calcaneal fractures who underwent either ELA or STA surgery. Pre- and postoperative radiographs and computed tomography scans were analyzed, and functional and pain scores were evaluated using the Manchester Oxford Foot Questionnaire (MOXFQ), American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, and Visual Analogue Score (VAS) during follow-up visits.
RESULTS: Out of the total patients, 50 underwent ELA surgery while 18 underwent STA surgery. The anatomic (excellent) reduction was achieved in 33 (48.5%) patients. There were no significant differences between the ELA and STA groups concerning functional scores, pain scores, the proportion of excellent reduction, and complications. Additionally, anatomic reduction, compared to near or non-anatomic (good, fair, or poor) reduction, demonstrated a decrease in MOXFQ (unstandardized β coefficient: -13.83, 95% CI: -25.47 to -2.19, p = 0.021), an increase in AOFAS (unstandardized β coefficient: 8.35, 95% CI: 0.31 to 16.38, p = 0.042), and a reduction in VAS pain (unstandardized β coefficient: -0.89, 95% CI: -1.93 to -0.16, p = 0.095) scores.
CONCLUSIONS: In conclusion, we found no significant differences regarding complications, excellent reduction, and functional scores between STA and ELA surgeries. Therefore, STA may be an effective alternative for the treatment of calcaneal fractures in Sanders type II and type III calcaneal fractures. Furthermore, the anatomic reduction of the posterior facet correlated with improved functional scores, emphasizing the importance of achieving it for restoring foot function regardless of surgery type or time between injury and surgery.

BACKGROUND: The purpose of this study was to evaluate emergency surgery of calcaneal fractures using the sinus tarsi approach (STA) with modified reduction technique in terms of complication rates, iconography results and functional outcome.
METHODS: We evaluated the outcomes of 26 patients treated in an emergency using STA with modified reduction technique. For that, we assessed Böhler´s angle, Gissane angle, reduction of the calcaneal body, and posterior facet, the visual analog scale (VAS), American Orthopaedic Foot and Ankle Society (AOFAS) score, complications, preoperative time, operative time, and in-hospital time.
RESULTS: Recovery of calcaneal anatomy and articular surface were found at final follow-up. The mean Böhler´s angle at final follow-up were 30.68° ± 3.69°, of which was 15.02° ± 3.88° preoperatively (p < 0.001). The mean Gissane angle at final follow-up were 114.54° ± 11.16° of which was 88.86° ±10.96° preoperatively (p < 0.001). All cases had the varus/valgus angle of the tuber within 5 degrees. At the final follow-up, the mean AOFAS score was 89.23 ± 4.63, and the VAS score was 22.73 ± 6.5.
CONCLUSIONS: Emergency surgery using STA with modified reduction technique is reliable, effective, and safe for treatment of calcaneal fractures. This technique can bring good clinical outcomes and a low rate of wound complications, reducing the in-hospital time, costs, and accelerating rehabilitation.

OBJECTIVE: Surgical treatment of intra-articular calcaneus fractures via a minimally invasive approach.
METHODS: Intra-articular dislocated calcaneus fractures.
METHODS: Fracture older than 14 days; poor soft tissue quality in the surgical area.
METHODS: Patient in lateral position. Identifying the anatomic landmarks. Incision (3-5 cm) from the tip of the fibula to metatarsal IV. Preparation through the subcutis. Retraction of the peroneal tendons. Preparation of the lateral calcaneal wall and later plate position via raspatory. Placement of a Schanz screw in the calcaneal tuberosity from lateral or posterior as a reduction aid for restoring of the calcaneal length and reduction of the hindfoot varus. Reduction of the sustentaculum fragment with the help of fluoroscopy from lateral. Elevation of the subtalar articular surface. Positioning of the calcaneal plate and fixation of the sustentaculum fragment by placing a cannulated screw through the long hole. Afterwards, definite internal fixation of the reduction with locking screws. Completion of the operation with final X‑rays and, if available, an intraoperative computed tomography. Wound closure with closing of the peroneal sheath.
METHODS: Lower leg-foot orthoses. Mobilization with partial weight-bearing of the injured foot with 15 kg for 6-8 weeks; subsequently increased load bearing.
RESULTS: Due to the smaller incision and the associated lower soft tissue trauma, the risk of wound healing complications can be reduced. Radiographic and functional outcomes are comparable to the outcomes of calcaneal fractures treated via the extended lateral approach.
UNASSIGNED: OPERATIONSZIEL: Die operative Versorgung von intraartikulären Kalkaneusfrakturen über einen minimal-invasiven Zugang.
UNASSIGNED: Intraartikuläre, dislozierte Kalkaneusfrakturen.
UNASSIGNED: Dazu zählen > 14 Tage alte Fraktur, schlechte Weichteilsituation im Operationsbereich.
UNASSIGNED: Lagerung in Seitenlage. Anzeichnen der anatomischen Landmarken. Hautinzision (3–5 cm) von der Fibulaspitze in Richtung Metatarsale IV. Präparation durch die Subkutis. Anheben der Peronealsehnen. Präparation des späteren Plattenlagers auf der lateralen Kalkaneuswand via Raspatorium. Setzen einer Schanz-Schraube in das Tuber calcanei von lateral oder posterior als Repositionshilfe zur Wiederherstellung der Kalkaneuslänge und Aufhebung des Rückfußvarus. Reposition des Sustentaculum-Fragments von lateral unter BV-Kontrolle. Anheben der subtalaren Gelenkfläche. Einführen der winkelstabilen Kalkaneusplatte und Setzen einer kanülierten Schraube in das Längsloch zur Fixierung des Sustentaculum-Fragments. Danach Einbringen der winkelstabilen Schrauben über die Platte. Beenden der Operation mit einer BV-Abschlusskontrolle und ggf. mit einem intraoperativen 3‑D-Scan. Schichtweiser Wundverschluss mit Verschluss der Peronealsehnenscheide.
UNASSIGNED: Unterschenkelfußorthese. Mobilisation unter Teilbelastung des betroffenen Fußes mit 15 kg für 6 bis 8 Wochen; anschließend Belastungsaufbau.
UNASSIGNED: Durch die verkleinerte Inzision und das damit einhergehende geringere Weichteiltrauma kann das Risiko von Wundheilungsstörungen signifikant gesenkt werden. Das radiologisch-funktionelle Outcome ist vergleichbar mit der operativen Versorgung über den ausgedehnten lateralen Zugang.

Operative fixation of displaced intra-articular calcaneal fractures is considered the gold standard, for which multiple fixation methods are available. This study compares the (functional) outcome of screw fixation (SF), plate fixation (PF), and anatomical plate fixation (APF) via the sinus tarsi approach (STA).
A total of 239 patients (265 fractured calcanei) who received surgical treatment of a displaced intra-articular calcaneal fracture via STA between 2011 and 2022 were included.
Böhler angle (BA) measured immediately postoperatively (BA post-OR) and the decrease in BA at 1 year (∆BA) differed significantly in favor of PF/APF compared with SF (BA post-OR: SF vs PF P = .010 and SF vs APF P = .001; ∆BA: SF vs PF P = .032 and SF vs APF P = .042). Implant removal surgery was performed significantly less in the APF group as compared to the SF/PF groups (APF vs SF/PF; 9.9% vs 22.9%/23.7%, P = .015). Surgical site infections and secondary arthrodesis of the subtalar joint occurred equally in the 3 groups. Furthermore, the mean American Orthopaedic Foot & Ankle Society ankle-hindfoot scale, Foot Function Index score, and EuroQOL-5D-index / visual analog scale score, did not differ notably between SF, PF, and APF.
The results show that both PF and APF are favored over SF because of an improved correction of BA measured directly postoperatively, a lower secondary loss of BA and, for APF, a lower implant removal rate. There was no difference in the rate of surgical site infections, need for secondary arthrodesis, nor functional outcome scores between different implants using the STA.
Level III, retrospective cohort study.

UNASSIGNED: Calcaneal fractures are serious injuries that mainly affect young, active people. As a result, these fractures may cause long-term impairment and have a major socioeconomic impact. The current updated systematic review and meta-analysis were conducted to evaluate the functional outcomes, re-operative risk, and complications associated with the treatment of displaced intra-articular calcaneal.
UNASSIGNED: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed to conduct this meta-analysis. The literature search was carried out using PubMed, Cochrane, MEDLINE, Google Scholar, and the EMBASE databases with the appropriate keywords.
UNASSIGNED: A total of 13 studies were included in this review. The follow-up months were diverse, ranging between 12 and 65 months in sinus tarsi approach (STA) and 12 to 76 months in extended lateral approach (ELA) methods. Time to surgery was shorter for the STA when compared to ELA (MD: 3.48; 95% CI 2.43 to 4.53; p < 0.00001). No significant difference was observed in functional outcomes between STA and ELA (MD: 0.34; 95% CI: -0.37 to 1.04; p = 0.35 > 0.05; I2 = 88%). In comparison to the ELA, the STA has significantly less wound healing complications (RR: 0.20; 95% CI 0.11 to 0.36; p 0.00001; I2 = 0%).
UNASSIGNED: In conclusion, the STA technique in treating calcaneal fractures was significantly safer and more effective when compared to the ELA methods. The STA method of treatment was found to have a lower risk of complications and an infection rate, as well as a shorter operating and recovery time.

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