Displaced Calcaneal Fractures Research Articles

Effectiveness comparison of two surgical methods in treatment of intra-articular displaced calcaneal fractures in older children

To compare the effectiveness of open reduction and internal fixation with plate and closed reduction and internal fixation with Kirschner wire (K-wire) in the treatment of intra-articular displaced calcaneal fractures in older children. A clinical data of 35 older children (37 feet) with intra-articular displaced calcaneal fractures who were admitted between November 2014 and November 2020 and met the selection criteria were retrospectively analyzed. Among them, 19 cases (20 feet) underwent open reduction and internal fixation with plate (plate group), and 16 cases (17 feet) underwent closed reduction and internal fixation with K-wire (K-wire group). There was no significant difference in gender, age, cause of injury, side and type of fracture, and time from injury to admission, and preoperative calcaneal Gissane angle and Böhler angle ( P>0.05). The postoperative calcaneal Gissane angle, Böhler angle, complications, and fracture healing were compared between the two groups. The ankle function was evaluated based on the American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot scoring system. Incision necrosis occurred in 1 foot in the plate group after operation, which healed after symptomatic treatment; the other incisions in the two groups healed by first intention. All children were followed up 12-39 months (mean, 19 months). X-ray films showed that the fractures in both groups healed; the healing time was (2.65±0.71) months in the plate group and (2.24±1.38) months in the K-wire group respectively, with no significant difference ( t=1.161, P=0.253). At last follow-up, the calcaneal Gissane angle and Böhler angle returned to normal; and the difference between pre- and post-operation in the two group was significant (P<0.05), but there was no significant difference between the two groups in the difference between before and after operation ( P>0.05). In the plate group, the plate was removed at 11-22 months after operation (mean, 16.8 months). At last follow-up, the AOFAS ankle-hindfoot score in the plate group was 91.2±5.1, which was significantly higher than that in the K-wire group (86.9±6.1) ( t=2.316, P=0.027). The ankle function was rated as excellent in 15 feet, good in 4 feet, and fair in 1 foot in the plate group, and excellent in 14 feet and good in 3 feet in the K-wire group, and the difference between the two groups was not significant ( Z=1.712, P=0.092). For intra-articular displaced calcaneal fracture in older children, the open reduction and internal fixation with plate and closed reduction and internal fixation with K-wire can achieve good effectiveness, but the former has better recovery of ankle function.

All-inside subtalar arthroscopy through three portals combined with rafting screws technique for the treatment of the calcaneal fractures of Sanders Ⅱ and Ⅲ

Objective: To investigate the surgical technology and clinical efficacy of using the all-inside subtalar arthroscopy through three portals combined with rafting screws technique for the treatment of the calcaneal fractures of Sanders Ⅱ and Ⅲ. Methods: The clinical data of 33 patients (33 feet) with intra-articular displaced calcaneal fractures treated by modified all-inside arthroscopic from March 2017 to March 2019 at Department of Orthopedics,Xuzhou Central Hospital were retrospectively analyzed.There were 19 male patients,and 14 female patients,aged (32.6±11.3) years(range:20 to 55 years). According to the Sanders classification,there were 12 cases of type Ⅱ and 21 cases of type Ⅲ. The duration from injury to surgery was (101.2±32.1) hours(range:6 to 140 hours).The preoperative visual analogue scale (VAS) was 6.4±2.9 (range: 4 to 8); The preoperative American Orthopaedic Foot & Ankle Society (AOFAS) ankle-hindfoot scale and the SF-36 score was 63.3±11.8 (range:50 to 75) and 94.8±9.1 (range:70 to 105) respectively.All the patients were managed with the all-side subtalar arthroscopy through three portals combined with rafting screws technique.The incision healing,reduction of fracture,and fracture healing were recorded.The VAS,AOFAS ankle-hindfoot scale,and SF-36 score were used to assess the pain and functional outcomes.Repeated-measurement was used to compare the scores before and after surgery. Results: The time of operation was (69.7±10.4) minutes (range:40 to 110 minutes). All patients did not undergo bone grafting.The incision healed in one stage without complications of skin sensory and peroneal tendon injury.All patients were followed up for 24 months.At the last follow-up,all the patients were satisfied with the hindfoot alignment,function,and hindfoot appearance.Postoperative calcaneal imaging indicators (calcaneal length,calcaneal width,calcaneal height,Bohler angle and Gissane angle) were significantly improved compared with those before surgery (P<0.01).There was no statistically significant difference in the imaging indexes of calcaneus at 1 day,1 year and 2 years after surgery,indicating no loss of fracture reduction (all P>0.05).The VAS,AOFAS ankle-hindfoot scale,and SF-36 score were 1.5±0.4 (range: 0 to 2),94.0±6.5 (range:90 to 100),and 119.1±7.2 (range:105 to 130),respectively,which were better than those before surgery (all P>0.05).According to the AOFAS scoring system,27 cases were excellent,4 cases were good, 2 cases were fair,and the excellent and good rate was 94.0%. Conclusion: All-inside subtalar arthroscopy through three portals combined with rafting screws technique for the treatment of the calcaneal fractures of Sanders Ⅱ and Ⅲ provides precise reduction,reliable fixation,satisfactory function and limited complications,which is an alternative method.

A COMPARATIVE STUDY OF OPERATIVE AND CONSERVATIVE TREATMENT OF INTRAARTICULAR DISPLACED CALCANEAL FRACTURES.

The methods of treatment of displaced intra-articular calcaneal fractures have always been surrounded by controversies, whether operative treatment is better or conservative. We conducted a prospective study to compare operative and non-operative treatment for intra-articular displaced calcaneal fractures. Patients were assigned to two groups based on the treatment given (operative and nonoperative) and were regularly followed for a period of 1 year. The outcome measures were assessed by Modied Rowe's Score (MRS), Visual Analogue e Scale (VAS) and The American Orthopaedic Foot and Ankle Society (AOFAS) scale. The outcome related to patient's job was noted after one year and compared with pre-injury status. 30 patients with 41 calcaneal fractures were studied. Thirty of them were operated and 21were treated conservatively. Out of 20 operated cases, Bohler's angle was restored in 15 cases and these had good results with all three outcome scores at 1 year follow up and remaining 5 cases showed fair results (Mean MRS: 74.783, VAS: 3.348, AOFAS: 78.783). 21 cases treated with cast also showed fair results (Mean MRS: 57.368, VAS: 4.944, AOFAS: 71.211). The overall outcome of operated cases were better than non-operated cases (unpaired T test MRS: 5.807 p&lt;0.001, VAS: 4.387 p&lt;0.001, AOFAS: 2.728 p=0.008) . Operative treatment of displaced intra-articular calcaneal fractures gave good results at one year follow up, provided Bohler's angle was restored to normal range. Non operative treatment gave fair results. Complications were seen both with operative and non-operative tr

3D imaging added value in the treatment and diagnosis of displaced intra-articular calcaneal fractures (DIACF): measuring the orientation of the posterior talo-calcaneal facet in the space

Purpose Measure the reduction quality of calcaneal fractures on 3 D segmented images. Methods The Ethics Review Board approved this study and written informed consent was collected from all patients. Bilateral CT scans of fifty-four patients with unilateral displaced calcaneal fracture were obtained before and after osteosynthesis. Orientation angle of the posterior subtalar joint facet (PTC) of displaced intra-articular calcaneal fractures of 54 patients was measured on segmented 3 D images before and after surgery and compared to the uninjured side. This orientation angle (OAC) is the average of every normal vector of each point of the PTC, as compared to the main calcaneal axis (calculated by first principal component analysis). The PTC is a well-known anatomical structure, relatively easy to identify on 3 D imaging. Results This OAC angle was low before surgery (mean= 95°, std dev= 6°), statistically significantly different from the uninjured side value, p < 0.001. The OAC angle of the operated bone was nearly equal to the uninjured side (mean= 103°, std dev= 5°), without any statistically significant difference between postoperative values and uninjured side values. We found linear correlation between the quality of the reduction when assessed with this OAC and the functional score (AOFAS) (Adjusted R2=0.62, p = 0.04). Conclusions This angle seems to be useful to quantify the quality of the operative reduction of displaced intra-articular calcaneal fractures.

A comparative study of operative and conservative treatment of intraarticular displaced calcaneal fractures

The treatment of intra-articular displaced calcaneal fracture is debatable. We conducted a prospective study to compare operative and non-operative treatment for intra-articular displaced calcaneal fractures. Patients were assigned to two groups based on the treatment given (operative and nonoperative) and were regularly followed for a period of 1 year. The outcome measures were assessed by Modified Rowe’s Score (MRS), Visual Analogue e Scale (VAS) and The American Orthopaedic Foot and Ankle Society (AOFAS) scale. The outcome related to patient’s job was noted after one year and compared with pre-injury status. Fifty five patients with 61 calcaneal fractures were studied. Thirty of them were operated and 31 were treated conservatively. Out of 30 operated cases, Bohler’s angle was restored in 25 cases and these had good results with all three outcome scores at 1 year follow up and remaining 5 cases showed fair results (Mean MRS: 74.783, VAS: 3.348, AOFAS: 78.783). Thirty one cases treated with cast also showed fair results (Mean MRS: 57.368, VAS: 4.944, AOFAS: 71.211). The overall outcome of operated cases were better than non-operated cases (unpaired T test MRS: 5.807 p < 0.001, VAS: 4.387 p < 0.001, AOFAS: 2.728 p = 0.008) . Operative treatment of displaced intra-articular calcaneal fractures gave good results at one year follow up, provided Bohler’s angle was restored to normal range. Non operative treatment gave fair results. Complications were seen both with operative and non-operative treatment.

Arthroscopy-assisted percutaneous reduction and screw fixation for displaced intra-articular calcaneal fractures

Objective: To investigate the surgical technology and clinical efficacy of using the all-inside arthroscopic treatment of intra-articular displaced calcaneal fracture. Methods: A retrospective analysis was made of 46 patients (46 feet) with intra-articular displaced calcaneal fractures treated by modified all-inside arthroscopic from December 2015 to December 2017 in Xuzhou Central Hospital. Twenty-eight cases (28 feet) were male and 18 cases (18 feet) were female, aged from 19 to 60 years (mean (39±13) years). The time from injury to operation was 1 to 10 days (mean (4.5±2.2) days). The pre-operative visual analogue scale (VAS) of pain ranged from 4 to 8 points, mean (6.3±1.8) points. No other combined injuries were found in the affected feet in all patients. All patients were treated with anterolateral, lateral and posterolateral approaches of arthroscopically assisted reduction for calcaneal fractures, and fixed with hollow screw. Main outcome measures included the pain, foot appearance, and the scores of the American Orthopedic Foot & Ankle Society (AOFAS) Scale and the Maryland Scale. Paired t test was used when the data before and after the operation were compared. Results: All incisions healed in one stage without postoperative complications such as nerve, vessel and tendon injury. The mean follow-up period ranged from 12 to 36 months, mean (21±9) months. Postoperatively X-ray showed complete fracture healing time was 8 to 12 weeks, mean (10.4±2.3) weeks. At the last follow-up, the ankle and talocalcaneal joints movement and appearance were ideal, and no traumatic arthritis was found. The VAS score of talocalcaneal joint was 0. AOFAS score increased from 58±13 to 96±9 and Maryland score increased from 72±11 to 98±8 after the operation, the differences were all significant (t=15.958, 12.496, both P<0.05). Conclusion: The all-inside arthroscopic treatment of the intra-articular displaced calcaneal fracture is an effective and precise method, with accurately outcomes, precise reduction and minimally postoperative complications.

Mini-plate fixation via sinus tarsi approach is superior to cannulated screw in intra-articular calcaneal fractures: A prospective randomized study

Intra-articular displaced calcaneal fractures are common fractures and are often treated with surgical interventions. Sinüs tarsi approach provides secure access to lateral wall and joint facets. The aim of the study is to compare cannulated screw (CS) fixation and mini-plate (MP) fixation via sinus tarsi approach with Sanders types 2 and 3 fracture of calcaneus. Sixty patients with Sanders types 2 and 3 calcaneal fracture underwent surgical intervention were randomly allocated into two groups as group MP fixation and group CS fixation regarding osteosynthesis method for 5-year period. Open reduction via sinüs tarsi approach was performed in both groups. Demographic variables, time to surgery (TS), operation duration (OD), length of hospital stay (LOS), surgical complications, and reoperations were recorded. Pre- and postoperative Gissane and Böhler angles; calcaneal length, height, and width; ankle anterior-posterior (AP) and lateral X-rays; and computed tomography were also recorded for radiological evaluation and fracture characteristics. Maryland Foot Score (MFS) was used to evaluate functional outcomes. Preoperative age, type of fracture, calcaneal length, height, and Gissane and Böhler angles, TS, LOS, and OD were not different between the groups. The postoperative calcaneal widening was significantly better restored in group MP compared with that of group CS. The incidence of reoperation and algoneurodystrophy was statistically higher in group CS than group MP. MFS in group MP was also higher than group CS at final visit. MP fixation via sinus tarsi approach is superior to CS fixation in Sanders types 2 and 3 calcaneal fractures.

Arthroscopically-assisted reduction and percutaneous screws fixation of Sanders type Ⅱ of calcaneal fractures

Category: Trauma Introduction/Purpose: Compared the clinical effect of arthroscopy assisted reduction and application of sinus tarsal approach reduction when treating Sanders Ⅱ calcaneal fractures. Methods: It was a retrospective comparative study since August 2014 to February 2017.There are 68 cases with Sanders type Ⅱ displaced calcaneal fractures which was divided into two groups. Group 1 with 31 cases was treated with arthroscopy assisted reduction and percutaneous headless screws fixation. Group 2 with 37 cases was treated with reduction and internal fixation. Results: No statistically significant difference was found between the two groups compared with the time of fracture healing, the Maryland foot score and AOFAS, and the differences was not statistically significant(P&gt;0.05). Compared with the open reduction group, arthroscopy group had lower VAS, the healing time of incision was significantly less, intraoperative and postoperative blood loss was less, and it had higher SF-36 score, the difference had statistical significance(P&lt;0.001). Conclusion: Two different kinds of surgical treatment of Sanders type Ⅱ calcaneal fractures had good clinical outcomes, but the treatment of arthroscopy group had less injury, less pain after surgery, less complications of incision, and it was more helpful to improve patients quality of life.

Can Bohler’s Angle Predict the Functional Results of Intra-Articular Displaced Calcaneal Fractures?

Introduction: Intra-articular fractures need to be anatomically reduced. In intra-articular calcaneal fractures, Bohler’s angle can be used as a tool to achieve articular congruity intraoperatively. But a debate exists whether surgical restoration of Bohler’s angle to normal range in calcaneal fractures can ensure good functional outcome. Many studies have found no correlation between Bohler’s angle and the ultimate functional outcome. . Aim: To investigate whether correlation exists between the operative restoration of Bohler’s angle and the functional outcome. Materials and Methods: Forty patients with closed intra-articular displaced calcaneal fracture were studied. The injury was classified according to Sanders classification. Preoperative and postoperative Bohler’s angle was determined from radiographs. The functional outcome was assessed using American Orthopaedic Foot and Ankle Society (AOFAS) hind foot score and Visual Analogue Scale (VAS). Results: Forty patients were enrolled in the study with a follow up period of 12 months. As per Sanders classification, there were 14 Type II, 14 Type III and 12 Type IV fractures. The Bohler’s angle preoperatively did not correlate with functional outcome. Postoperative Bohler’s angle correlated significantly with AOFAS hind foot score and Visual analogue scale. Conclusion: Intraoperative restoration of Bohler’s angle to >18 degrees correlated strongly with the ultimate functional outcome. Therefore, aim of treatment in calcaneal fractures should be restoration of Bohler’s angle to near normal value.

Effect of Intraoperative Three-Dimensional Imaging During the Reduction and Fixation of Displaced Calcaneal Fractures on Articular Congruence and Implant Fixation.

Operative treatment of displaced calcaneal fractures should restore joint congruence, but conventional fluoroscopy is unable to fully visualize the subtalar joint. We questioned whether intraoperative 3-dimensional (3D) imaging would aid in the reduction of calcaneal fractures, resulting in improved articular congruence and implant positioning. Sixty-two displaced calcaneal fractures were operated on using standard fluoroscopic views. When the surgeon had achieved a satisfactory reduction, an intraoperative 3D scan was conducted, malreductions or implant imperfections were revised, the calcaneus was rescanned, and this sequence was repeated until the optimal operative result was achieved. Five fractures underwent 1 intraoperative scan, 39 fractures underwent 2 scans, 13 fractures underwent 3 scans, and 5 fractures underwent 4 scans. The average number of scans was 2.3. Intraoperative scanning led to re-reduction and improvement of reduction in 13 fractures, change of plate position in 1 patient, optimizing of the screw directions in 5 fractures, and shortening of screws that were intra-articular or protruding medially in 6 fractures. The postoperative articular displacement was 0 mm in 69% of the Sanders type 2 fractures and 57% of the Sanders type 3 fractures. Operation duration averaged 118 minutes, and there were no reoperations due to misplaced screws or plates. The average absorbed radiation dose per patient was 288 mGy·cm. Intraoperative 3D imaging improved the articular reduction of the posterior facet and secured optimal implant position in displaced calcaneal fractures. Radiation dose to the patient was less than that of a normal foot computed tomography scan. Level IV, case series.

Operative care did not benefit closed, displaced, intra-articular calcaneal fractures.

Griffin D, Parsons N, Shaw E, Kulikov Y, Hutchinson C, Thorogood M, Lamb SE; UK Heel Fracture Trial Investigators. Operative Versus Non-Operative Treatment for Closed, Displaced, Intra-Articular Fractures of the Calcaneus: Randomised Controlled Trial. BMJ. 2014 Jul 24;349:g4483. ### Question: In patients with closed, displaced, intra-articular calcaneal fractures, is operative care better than nonoperative care? ### Design: Randomized (allocation concealed), blinded (outcome assessor), controlled trial with two years of follow-up (U.K. Heel Fracture Trial [U.K. HeFT]). ### Setting: Twenty-two hospitals in the United Kingdom. ### Patients: 151 patients who were ≥18 years of age (mean age, 46.5 years; 84% men) and had a closed, intra-articular, displaced (subtalar joint posterior facet displacement ≥2 mm) calcaneal fracture within the past three weeks. Exclusion criteria included gross deformity of the hindfoot (fibular impingement), other serious leg injuries that would affect outcome at two years, and peripheral vascular disease. 143 patients (95%) completed follow-up. ### Intervention: Patients were allocated to operative (n = 73) or nonoperative (n = 78) treatment. Operative treatment involved open reduction and internal fixation within 3 weeks after the injury using an extensile lateral approach with interfragmentary screws and …

Open reduction and internal fixation of acute intra-articular displaced calcaneal fractures: A retrospective analysis of surgical timing and infection rates

The choice of surgical timing in open reduction for calcaneal fractures has been proposed to be associated with soft-tissue complications and infection. This study analysed the correlation between surgical timing and postoperative infection rates. We performed a retrospective single-surgeon single-facility study (Kaohsiung Medical University Hospital, KMUH) between January 2006 and January 2010. Fifty patients with 53 close intra-articular calcaneal fractures were included. They received open reduction and internal fixation via the extensile lateral L-shaped approach. We assessed the duration between heel trauma and operation from the medical records and sorted our patients into early (within 3 days), intermediate (from 3 to 10 days) and delayed (over 10 days) surgical groups. The mean follow-up period was 13 months. Only one of the 50 patients, a 74-year-old female with diabetes mellitus, developed deep infection requiring hardware removal and serial debridement. Overall, we did not find a statistical difference in postoperative infection rates in the different timing groups. Our conclusion is that in experienced hands, surgical timing may not affect postoperative infection rates in calcaneal fracture among strictly selected patients who do not have potential risk factors for wound complication. Therefore, early operation may be helpful to these patients.

Treatment of Open Intra-articular Calcaneal Fractures: Evaluation of a Treatment Protocol Based on Wound Location and Size

Effective treatment algorithms for open, displaced, intra-articular calcaneal fractures and their potential early complications have not yet been established. This is a retrospective review of the management of open displaced calcaneal fractures at a Level 1 trauma center and their resulting soft-tissue complications in an effort to establish guidelines for management. Between November, 1994, and April, 2002, 31 open intra-articular calcaneal fractures in 29 patients were treated at our institution. All fractures were treated with a standard protocol based on the appearance of the traumatic wound after initial debridement and stabilization. Fracture stabilization was determined by the wound characteristics and was either standard internal fixation or percutaneous fixation. Data on associated injuries, comorbidities, smoking, and subsequent soft-tissue complications were collected and reviewed. Overall there was a 29% soft-tissue complication rate with this protocol. Two of the four laterally based traumatic wounds had complications. Twenty-seven wounds were medial. Nine were considered unstable and were treated with aggressive wound management and percutaneous fixation of the tuberosity reduction; two developed deep infections and required amputation and seven were salvaged with patients returning to full weightbearing. Eighteen fractures with medial wounds were treated with standard internal fixation; soft-tissue complications occurred in five. Initial size greater than 4 cm was associated with an increased complication rate in this group. Management of open calcaneal fractures and the risk of complications depend on the size and position of the traumatic wound. Lateral wounds are rare and in this review, two of the four had complications using this protocol. Medial wounds of less than 4 cm can be treated with open reduction and standard internal fixation if the wound can be closed and remain stable off antibiotics. Larger wounds (more than 4 cm) or unstable wounds should not be treated with open reduction and internal fixation but can be reduced and held in alignment with percutaneous wire fixation.

Fractures of the calcaneum

We have assessed the long-term results after operative and non-operative treatment of undisplaced and displaced calcaneal fractures. At a mean of 6.5 years, we reviewed 70 patients with a calcaneal fracture who were divided into four groups: group 1, 18 patients with undisplaced fractures and a normal Böhler's angle (BA) who had been treated non-operatively; group 2, 23 with intra-articular fractures and a BA < 10 degrees who had been treated non-operatively; group 3, 13 with intra-articular fractures and a BA > 10 degrees who had been treated surgically; and group 4, 16 with intra-articular fractures and a BA < 10 degrees who had been treated surgically. The results were assessed by a clinical score considering pain, return to work, return to physical activity, change in shoe-wear and the requirement for subtalar arthrodesis. Patients with undisplaced calcaneal fractures had a good outcome. Those with displaced fractures treated surgically who presented at follow-up with a BA > 10 degrees had a satisfactory functional outcome and those with displaced fractures who had non-operative treatment had a poor outcome. The poorest outcome was consistently seen in patients who were treated operatively without restoration of BA. Open reduction and internal fixation of intra-articular calcaneal fractures can only be expected to benefit those patients in whom nearly anatomical reconstruction is obtained.

An outcomes assessment of intra-articular calcaneal fractures, using patient and physician’s assessment profiles

Thirty-six patients with intra-articular displaced calcaneal fractures were examined to determine both physician- and patient-based outcomes. Three groups were selected. Group A was treated with open reduction and internal fixation, group B was treated with open reduction internal fixation and supplemental bone graft augmentation and the patients in group C were treated with plaster cast immobilisation and no formal operative treatment. All cohorts were well matched for age, sex and severity of injury. Patients were evaluated using both the American Foot and Ankle Society Scoring System (AFASS) and the short form 36 (SF-36). Minimum time to follow up was 4 years. No significant difference was observed between the three groups with regards to pain and functional outcomes using the AFASS score ( P>0.05). No difference was observed between the three groups using the SF-36 score ( P>0.1). A statistically significant difference was observed, using radiological criteria, between both groups A and B when compared to the non-operative group C. The rate of wound infection in groups A and B was 31.5%. No correlation was found between the SF-36 score and the AFASS score. No correlation was found between the radiological score and either the SF-36 or the AFASS score. This study has found that the conservative treatment of calcaneal fractures can produce satisfactory outcomes with lower morbidity than surgically treated fractures.

Displaced intra-articular calcaneal fracture treated surgically with limited posterior incision.

The incidence of calcaneal fracture has been slowly increasing; however, the ideal treatment for displaced intra-articular fracture is not available yet, even though the fracture brings frequent complication and disability. Between April 1991 and March 1998, we treated 103 displaced intra-articular calcaneal fractures of 92 patients surgically with limited posterior incision, modified Gallie approach. There were thirty-seven tongue-type fractures, fifteen tongue-type fractures with moderate comminution, nineteen joint-depression fractures, twenty-nine joint-depression fractures with moderate comminution, and three extensively comminuted fractures. The fracture fragments were fixed mainly with partly threaded small cancellous screws or Steinmann pins without any bone graft. Ankle and subtalar motion was permitted immediately if fixation were stable enough. Otherwise, a short period of cast immobilization was utilized. With a mean follow-up of 28 months (range, 12 to 66 months), eighty six percent of feet had no pain or only occasional pain not requiring medication. Using American Orthopedic Foot and Ankle Society hindfoot score system for assessment, ninety percent of feet rated as good to excellent. We used "Circle draw test" for evaluation of subtalar motion during follow-up visitation and found eight-seven percent of feet showed good to excellent correlation with the functional recovery. We recommend a limited posterior incision for reduction and internal fixation of displaced intra-articular calcaneal fractures. For displaced intra-articular fractures with three or four large fragments without further comminution and without a displaced fracture of the calcaneal cuboid joint, this method is particularly useful. We also recommend a Circle draw test for evaluation of subtalar joint motion as well as an indicator of functional recovery after displaced calcaneal fractures.

Therapy of dislocated calcaneus joint fracture with the AO calcaneus plate

From August 1992 to March 1997, 66 patients with 71 displaced intraarticular calcaneal fractures were prospectively examined after an operative treatment using an extended lateral approach and the ASIF calcaneal plate followed by early functional postoperative treatment (mean follow-up 25 months, retrieval rate 96%). To classify the type of fracture and to verify the results of reduction and of retention CT scans in the coronal and transverse plane were performed pre- and postoperatively and on the day of assessment. The Zwipp Score was used for clinical evaluation. After fractures with 5 to 8 points according to the calcaneal fracture scale, 97% of the patients had an anatomical or near anatomical reduction of the posterior facet and the clinical outcome in 82% of the patients was graded as good or excellent. In 70% of patients with a fracture rated 9 to 10 points a good reduction was demonstrated and clinically there were 67% good or excellent results. But in the fractures with 11 to 12 points, despite 40% good reductions, the clinical outcome was graded as good in 10% of the patients only. However, if the post-operative displacement of the posterior facet was more than 2 mm no patient had a good result independent of the type of fracture. Due to restoration of the geometry of the most comminuted fracture types and the immediate partial weight bearing secondary soft tissue problems could be minimized without any loss of articular reduction. Anatomical reduction and stable internal fixation together with adequate physical therapy are apparently preconditions but not a guarantee for a good clinical result after displaced calcaneal fractures.