Objective To investigate the surgical treatments of Morel-Lavallée lesion with perineal lacerations. Methods From March 2003 to June 2009, 18 cases of Morel-Lavallée lesion with perineal lacerations were treated. There were 16 males and 2 females with a median age of 28.5 years (range, 3-54 years). The time between the injury and hospital ization ranged from 3 hours to 7 days. The lesions were in the greater trochanter (2 cases), the gluteal (2 cases), the lumbar flank (1 case), the lumbar sacrum (3 cases), the pelvic girdle (7 cases), and the hip (3 cases). All the cases were compl icated with perineal lacerations, which included male genital ia defect (2 cases), mangled genital ia (2 cases), and genital ia injuries with anal injuries (14 cases). The main treatments included repeated debridement, external fixation of fractures, vacuum seal ing drainage, skin grafting, reconstruction of genital ia, and anoplasty. Results Three cases died after operation. Two cases died of multiple system organ failure, 1 case died of septic shock. Three cases were amputated and the causes were mangled extremities (2 cases) and osteofascial compartment syndrome (1 case). In 15 survivors, the average time of operations was 3.6 times (range, 3-8 times) and the average hospital ization days was 43.3 days (range, 32-108 days). After a follow-up of 6 months to 2 years, all perineal wounds healed. Anals recovered the normal defecation while one with ostomy was waiting for the secondly resetting of the bowels. Conclusion The treatments of Morel-Lavallée lesion with perineal lacerations were significantly different from simple close Morel-Lavallée lesion. With high mortal ity and disabil ity, Morel-Lavallée lesion with perineal lacerations require more challenging treatment protocols among which the most important is the soft tissue management and nutrition. The satisfactory outcomes come from joint efforts of multiple departments.
ObjectiveTo introduce the experience of intelligent monitoring system assisted pelvic fracture closed reduction to treat complex pelvic fracture in a minimally invasive method.MethodsA 30-year-old male patient with complex pelvic fracture caused by a falling injury was treated in December 2019. The pelvic fracture was diagnosed by X-ray film and CT three-dimensional reconstruction. The AO/Orthopaedic Trauma Association (AO/OTA) classification was 61-C3.3 type (H-shaped sacrum fracture with pubic symphysis separation). At 48 hours after injury, the vital signs were stable, and the operation was performed. The pelvic fracture was reduced with the help of pelvic reduction frame and skeletal traction, the intelligent monitoring system, and fixed with the channel screws.ResultsThe intraoperative blood loss was 50 mL, the operation time was 180 minutes, and the fluoroscopy time was 45 seconds. The incision healed well after operation. The X-ray film of pelvis was taken on the next day after operation, and the fracture reduction was evaluated as anatomical reduction according to Matta standard; CT three-dimensional reconstruction showed that the fixation screws were all located in the cortex of bone, without penetrating the cortex of bone.ConclusionThe intelligent monitoring system assisted pelvic fracture closed reduction is reliable in the minimally invasive treatment of complex pelvic fractures, which can achieve good results and reduce intraoperative fluoroscopy.
Objective To evaluate the security and effectiveness of minimal invasive fixation with fluoroscopybased navigation in the management of pelvic fractures. Methods From April 2007 to June 2008, 22 patients with pelvic fractures were treated with percutaneous screw fixation under the guidance of a fluoroscopy-based navigation system after closed reduction. There were 13 males and 9 females, aged 21-65 years old. Fractures were caused by traffic accident in 17 cases, andfall ing from height in 5 cases. According to AO classification, there were 2 cases of A2.2 type, 2 cases of A2.3 type, 7 cases of B1.2 type, 3 cases of B2.2 type, 1 case of B3.3 type, 2 cases of C1.2 type, 3 cases of C1.3 type, and 2 cases of C2.3 type. The interval from injury to hospital ization was 4 hours to 3 days (mean 1.2 days). After 3-13 days of skeletal traction through tibial tubercle, the operation was performed. Results Totally 42 screws were inserted. The average time for operation was 20.4 minutes per screw. Forty-one screws were inserted correctly with a successful insertion rate of 97.6%, only 1 hollow screw was reinserted for deviation. No incision problem and implant failure occurred. All 22 patients were followed up 7 to 21 months with an average of 14.5 months. At last follow-up, fracture union was achieved in all patients with satisfactory screw fixation. According to Majeed functional scoring, the results were excellent in 18 cases and good in 4 cases, with an excellent and good rate of 100%. Conclusion The minimal invasive fixation with fluoroscopy-based navigation makes the surgery for the pelvic fracture more precise and time-saving, and improves cl inical results without an increasing rate of compl ications.
ObjectiveTo investigate the effectiveness of anterior subcutaneous internal fixator combined with posterior plate in the treatment of unstable pelvic fractures.MethodsBetween January 2015 and January 2019, 26 cases of unstable pelvic fractures were treated with anterior subcutaneous internal fixator combined with posterior plate. There were 16 males and 10 females, with an average age of 42.8 years (range, 25-66 years). According to the Tile classification, 9 of them belonged to type B2, 6 to type B3, 7 to type C1, 3 to type C2, 1 to type C3. The injury severity score (ISS) was 6-43 (mean, 18.3). Four cases combined with brain injury, 7 with limb fractures, 3 with hemopneumothorax, 1 with sciatic nerve injury. The time from injury to operation was 4-12 days (mean, 6.4 days). The intraoperative blood loss, operation time, and the complications were recorded. The fracture reduction and the postoperative function of patients were evaluated.ResultsAll patients were followed up 12-26 months (mean, 16.8 months). The operation time was 65-142 minutes (mean, 72.5 minutes) and the intraoperative blood loss was 42-124 mL (mean, 64.2 mL). There were 2 cases of unilateral lateral femoral cutaneous nerve stimulation, 1 case of femoral nerve paralysis, and 1 case of superficial infection of incision, which were cured after corresponding treatment. X-ray films showed that all fractures healed at 3 months after operation. At last follow-up, according to Matta criteria for fracture reduction, the results were excellent in 8 cases, good in 15 cases, fair in 2 cases, and poor in 1 case, with an excellent and good rate of 88.5%. According to Majeed scoring system for pelvic function, the results were excellent in 10 cases, good in 12 cases, and fair in 4 cases, with an excellent and good rate of 84.6%.ConclusionFor unstable pelvic fractures, the anterior subcutaneous internal fixator combined with posterior plate has fewer operative complications, high security, and achieve good effectiveness.
Objective To investigate the early effectiveness of transiliac-transsacral screws internal fixation assisted by augmented reality navigation system HoloSight (hereinafter referred to as “computer navigation system”) in the treatment of posterior pelvic ring injuries. MethodsA retrospective analysis was made in the 41 patients with posterior pelvic ring injuries who had been treated surgically with transiliac-transsacral screws between June 2022 and June 2023. The patients were divided into navigation group (18 cases, using computer navigation system to assist screw implantation) and freehand group (23 cases, using C-arm X-ray fluoroscopy to guide screw implantation) according to the different methods of transiliac-transsacral screws placement. There was no significant difference in gender, age, body mass index, causes of injuries, Tile classification of pelvic fracture, days from injury to operation, usage of unlocking closed reduction technique between the two groups (P>0.05). The time of screw implantation, the fluoroscopy times, the guide wire adjustment times of each screw, and the incidence of complications were recorded and compared between the two groups. The position of the transiliac-transsacral screw was scanned by CT within 2 days after operation, and the position of the screw was classified according to Gras standard. ResultsThe operation was successfully completed in both groups. The time of screw implantation, the fluoroscopy times, and the guide wire adjustment times of each screw in the navigation group were significantly less than those in the freehand group (P<0.05). There were 2 cases of incision infection in the freehand group, and the incision healed by first intention after active dressing change; there was no screw-related complication in the navigation group during operation and early period after operation; the difference in incidence of complications between the two groups (8.7% vs. 0) was not significant (P=0.495). According to the Gras standard, the screw position of the navigation group was significantly better than that of the freehand group (P<0.05). ConclusionCompared with the traditional freehand method, the computer navigation system assisted transiliac-transsacral screws internal fixation in the treatment of posterior pelvic ring injuries has advantages of improving the accuracy of screw implantation and reducing radiation damage and the time of screw implantation.
ObjectiveTo evaluate the effectiveness of three-dimensional (3D) printing assisted internal fixation for unstable pelvic fractures.MethodsThe clinical data of 28 patients with unstable pelvic fractures admitted between March 2015 and December 2017 were retrospectively analyzed. The patients were divided into two groups according to different surgical methods. Eighteen cases in the control group were treated with traditional anterior and posterior open reduction and internal fixation with plate; 10 cases in the observation group were treated with 3D printing technology to make pelvic models and assist in shaping the subcutaneous steel plates of the anterior ring. Sacroiliac screw navigation template was designed and printed to assist posterior ring sacroiliac screw fixation. There was no significant difference between the two groups in gender composition, age, cause of injury, fracture type, and time interval from injury to surgery (P>0.05). The operation time, intraoperative blood loss, intraoperative fluoroscopy times, incision length, waiting time for weight-bearing exercise, and fracture healing time were recorded and compared between the two groups. Majeed score was used to evaluate the function at last follow-up. At immediate after operation, the reduction was evaluated according to Matta imaging scoring criteria, and the success of sacroiliac joint screw implantation in the observation group was evaluated. The deviation of screw entry point and direction between postoperative screws and preoperative simulated screws were compared in the observation group.ResultsAll the operation was successfully completed, and all patients were followed up 6-18 months (mean, 14.4 months). In the control group, 1 case had wound infection and 2 cases had deep vein thrombosis. No serious complication such as important blood vessels, and nerve injury and pulmonary embolism occurred in other patients in the two groups. No screw pulling out or steel plate breaking occurred. The operation time, intraoperative blood loss, fluoroscopy times, incision length, and waiting time for weight-bearing exercise of the control group were significantly more than those of the observation group (P<0.05); there was no significant difference in fracture healing time between the two groups (t=0.12, P=0.90). There was no significant difference in reduction quality between the two groups at immediate after operation (Z=–1.05, P=0.30); Majeed score of the observation group was significantly better than that of the control group at last follow-up (Z=–2.42, P=0.02). The success rate of sacroiliac joint screw implantation in the observation group reached category Ⅰ. In the observation group, the deviation angle of the direction of the screw path between the postoperative screw and the preoperative simulated screw implant was (0.09±0.22)°, and the deviation values of the entry points on the X, Y, and Z axes were (0.13±0.63), (0.14±0.58), (0.15±0.53) mm, respectively. There was no significant difference when compared with those before the operation (all values were 0) (P>0.05).ConclusionComputer design combined with 3D printing technology to make personalized pelvic model and navigation template applied to unstable pelvic fractures, is helpful to accurately place sacroiliac screw, reduce the operation time, intraoperative blood loss, and the fluoroscopy times, has good waiting time for weight-bearing exercise and function, and it is an optional surgical treatment for unstable fractures.
Objective To investigate the effectiveness of modified internal fixator (INFIX) to fix the anterior pelvic ring for Tile C1.3 pelvic fracture by comparing with the traditional INFIX. MethodsThe patients with Tile C1.3 pelvic fractures admitted between April 2018 and June 2021 were taken as the study objects. Of them, 55 cases were included in the study according to the selection criteria. During operation, the anterior pelvic ring was fixed with the modified INFIX in 30 cases (modified group) and with the traditional INFIX in 25 cases (control group). The posterior pelvic ring in 55 cases was fixed with sacroiliac screws. There was no significant difference between the two groups in gender, age, cause of injury, time from injury to operation, and combined injury (P>0.05). The operation time, intraoperative blood loss, and complications were recorded and compared between the two groups. The X-ray film was taken to evaluate the reduction of the anterior pelvic ring after operation, grade the reduction according to the Matta scoring standards, and observe the fracture healing and healing time. The function was evaluated according to Majeed scoring standards during follow-up. Results The operation time of the modified group was significantly longer than that of the control group (Z=–3.837, P<0.001), but there was no significant difference in the intraoperative blood loss between the two groups (t=–1.831, P=0.076). All patients were followed up 12-18 months (mean, 14 months). X-ray film reexamination showed that the excellent and good rate of Matta scoring for anterior pelvic ring reduction in the modified group was 88.00%, which was significantly better than that in the control group (63.33%) (χ2=4.373, P=0.037). All fractures healed, and the fracture healing time of the modified group and the control group was (12.04±3.59) and (14.83±4.83) weeks respectively, with a significant difference (t=2.401, P=0.020). At last follow-up, the excellent and good rates of Majeed scoring were 80.00% in the modified group and 76.67% in the control group, with no significant difference (χ2=0.089, P=0.766). In the modified group, 2 cases (8%) had complications, all of which were incision infection above pubic symphysis. In the control group, 9 cases (30%) had complications, including 5 cases of lateral femoral cutaneous nerve injury, 2 cases of femoral nerve paralysis, and 2 cases of delayed fracture healing. The incidence of complications was significantly lower in the modified group than in the control group (χ2=4.125, P=0.042). ConclusionCompared with the traditional INFIX, the modified INFIX to fix the anterior pelvic ring for Tile C1.3 pelvic fracture has fewer complications, better stability, shorter fracture healing time, and lower risk of nerve injury.
ObjectiveTo investigate the effectiveness of channel screw combined with skin-stretching technique in treatment of pelvic fracture with severe Morel-Lavallée lesion.MethodsBetween January 2017 and May 2020, 11 patients with pelvic fractures complicated with severe Morel-Lavallée lesions were treated with channel screw combined with skin-stretching technique. There were 8 males and 3 females, with an average age of 39.2 years (range, 28-58 years). Causes of injury included traffic accident in 9 cases and falling from hight in 2 cases. The time from injury to hospital admission ranged from 1 to 6 days (mean, 3.7 days). According to the Tile classification, the pelvic fractures were rated as type C1 in 7 cases, type C2 in 3 cases, and type C3 in 1 case. The sites of Morel-Lavallée lesions were buttocks in 8 cases, hips in 2 cases, and thigh in 1 case. There was 1 case of rectal injury, 1 case of splenic rupture, 3 cases of craniocerebral injury, 2 cases of chest injury, 4 cases of spinal fracture, and 6 cases of sacral nerve injury. X-ray films were performed to observe reduction and healing of fracture. The quality of fracture reduction was evaluated by Matta standard at 1 week after operation. Wound healing and complications were observed. Majeed scoring was used to evaluate hip function and Gibbons sacral nerve injury grading was used to evaluate neurological function recovery.ResultsThe patients underwent 4-7 operations, with an average of 5.8 operations. The time of first operation (pelvic fracture fixation, debridement, and skin distractor installation) was 115-275 minutes, with an average of 186.5 minutes. The amount of intraoperative blood loss was 30-80 mL, with an average of 45.5 mL. All patients were followed up 6-12 months, with an average of 8.3 months. The quality of fracture reduction according to the Matta standard was excellent in 7 cases, good in 2 cases, and fair in 2 cases, with an excellent and good rate of 81.8%. All fractures healed at 3-6 months after operation, with an average of 4.5 months. At last follow-up, the hip functions were excellent in 7 cases and good in 4 cases according to Majeed scoring, with an excellent and good rate of 100%. Among the 6 patients complicated with sacral nerve injury, the Gibbons sacral nerve injury grading reached gradeⅠ for 4 cases, gradeⅡ for 1 case, and grade Ⅲ for 1 case. The wounds of 9 cases were sutured directly after skin-stretching treatment for 25-32 days, with an average of 28 days. The dermal edge necrosis occurred in 1 case, and the defect was repaired by free skin grafting. The skin superficial dry necrosis of the wound occurred in 1 case, and healed by dressing change.ConclusionIn the treatment of pelvic fracture complicated with severe Morel-Lavallée lesion, the channel screw and skin-stretching technique showed their own advantages, which can obtain early fracture fixation and good wound healing.
ObjectiveTo evaluate the effectiveness of percutaneous retrograde pubic screw implantation assisted by hollow pedicle opener in pubic branch fractures.MethodsThe clinical data of 42 patients with pubic branch fractures treated by hollow screw fixation between March 2008 and March 2019 were analyzed retrospectively. According to the operation method, they were divided into the traditional operation group (20 cases in group A, fixed with traditional retrograde pubic screws) and the modified operation group (22 cases in group B, fixed with percutaneous retrograde pubic screws assisted by hollow pedicle opener). There was no significant difference (P>0.05) between the two groups in terms of gender, age, cause of injury, fracture classification, comorbidity, and time from injury to operation. The operation time, blood loss, incision length, screw length, and complications were recorded and compared between the two groups. The fracture reduction was evaluated according to Matta standard on the next day after operation, and the function was evaluated by Majeed score at 12 months after operation.ResultsThe operation was successfully completed in both groups. The operation time, blood loss, and incision length of group B were significantly less than those of group A (P<0.05); there was no significant difference in screw length between the two groups (t=0.793, P=0.437). All patients were followed up 8-24 months, with an average of 16.8 months. There was no complication in the two groups, such as injury of blood vessels and nerves, fracture of internal fixation, screw entering into joint cavity, and nonunion of fracture. There was no significant difference in the fracture healing time between the two groups (t=−1.068, P=0.299). There were 2 cases of incision infection, 1 case of incision fat liquefaction, 2 cases of lower extremity deep vein thrombosis in group A, the incidence of complications was 25.0%; there was only 1 case of lower extremity deep vein thrombosis in group B, the incidence of complication was 4.5%, which was lower than that in group A, but the difference was not significant (χ2=2.104, P=0.147). In group A, 1 case was found to be dislocated, but in group B, there was no dislocated fracture. There was no significant difference between the two groups in the evaluation of Matta imaging on the next day after operation and the evaluation of Majeed function at 12 months after operation (P>0.05).ConclusionPercutaneous retrograde pubic screw implantation assisted by hollow pedicle opener is effect for the pubic branch fractures with the advantage of smaller incision, shorter operation time, and less bleeding compared with traditional methods.
【Abstract】 Objective To evaluate the effectiveness of percutaneous fixation of pelvic fracture by Acutrak full thread headless hollow compression screw. Methods Between March 2008 and April 2010, 31 patients with pelvic fracture underwent percutaneous fixation surgery with Acutrak full thread headless hollow compression screw (surgical group). The effectivenss was compared with those of 14 patients with pelvic fracture treated conservatively (control group). There was no significant difference in age and sex between 2 groups (P gt; 0.05). The injury was more severe in surgical group than in control group. The standard of short-term recovery was active turning over and walking for 5 steps with walking aids. The standard of long-term recovery was pain, gait, fracture healing, and function recovery. Results In surgical group, the other patients reached the standard of short-term recovery at 1-4 days after injury except 1 patient who had sacral plexus injury; in control group, the patients could turn over at 9-13 days (Tile type A2) and 17-25 days (Tile type B2) respectively, and could walk at 17-21 days (Tile type A2) and at 45-57 days (Tile type B2) respectively. The patients of 2 groups were followed up 6-19 months. The time of fracture healing was 2-6 months. The long-term results were excellent in 29 cases and good in 2 cases in surgical group, and were excellent in 8 cases and good in 6 cases in control group, showing significant difference between 2 groups (χ2=6.636, P=0.017).Conclusion Percutaneous internal fixation combined with Acutrak full thread headless hollow compression screw can provide more effective treatment. It can alleviate patients, pain quickly, improve life quality, and has better long-term effectiveness.