Clinical Features of Tibialis Anterior Tendon Rupture / 대한족부족관절학회지

Purpose@#Tibialis anterior tendon rupture is uncommon and usually caused by laceration. Rupture with an open window is often considered simple laceration, and thus diagnosis is often overlooked or delayed. The purpose of this study was to analyze the clinical features of tibialis anterior tendon rupture. @*Materials and Methods@#Twenty-two patients treated for tibialis anterior tendon rupture from March 2015 to December 2019 were examined. Age, sex, rupture etiology, rupture location, and diagnostic and treatment delays were investigated. @*Results@#Mean patient age was 45.7 years, and there were 14 males and 8 females. In 18 cases, rupture was caused by laceration and in 4 by spontaneous rupture. Of the 18 cases caused by laceration, 8 were lawnmower related, 8 were glass injuries, and 2 were caused by crush or degloving injuries, respectively. Three of the 4 spontaneous rupture cases and 4 of the 18 caused by laceration were overlooked. @*Conclusion@#Tibialis anterior tendon rupture is rare and is easily overlooked. Close physical examination is essential to arrive at a correct initial diagnosis in patients with acute or chronic rupture, and greater care is needed in cases of glass injury.

Diagnosis and treatment of Charcot arthropathy in diabetic patients

Charcot joint or neurogenic arthropathy in diabetes is a late complication invading the foot and ankle that results in dislocation, instability, and deformity of the affected area. Sensory neuropathy leads to numbness and malalignment of the foot and ankle or inadequate post-traumatic response, which results in progressive fractures, multiple joint dislocations, ulcerations, osteomyelitis, and amputation. Because of such serious consequences, understanding of pathophysiology is important in determining treatment strategies. Early diagnosis and appropriate treatment can prevent this destructive process.Current Concepts: The number of adults diabetic patients continuously increases. Health care and life expectancy will continue to improve with the development of medicine. As a result, the incidence of diabetes-related complications will increase. Diabetic Charcot joint will have a serious negative impact on the quality of life and financial burden on the diabetic patients. The goal of treatment for Charcot joint is not to build a normal foot, but to make a stable plantigrade foot that can be worn shoes. Therefore, it would be most important to understand the progress and characteristics of the disease and to develop an appropriate plan in order to select the appropriate treatment method.Discussion and Conclusion: Understanding Charcot joint and familiarization with its appropriate treatment should reduce the number of the cases of diabetic Charcot joint patients with disabilities or amputations.

Nonoperative Treatment of Achilles Tendinopathy / 대한족부족관절학회지

Achilles tendinopathy has seen good results with conservative management. However, the management of Achilles tendinopathy lacks evidence-based support, and tendinopathy patients are at risk of long-term morbidity with unpredictable clinical outcomes. Data suggests that 29% of tendinopathy patients required surgical intervention during the follow-up period. Chronic pain after damage to the Achilles tendon is a result of incomplete recovery of fibrous tissue. Recently, many procedures, including various injection treatments, have been tried without understanding proper preservation techniques and procedures for faster tendon recovery, especially for patients who want to quickly return to their daily lives. This article is an extensive literature review on nonoperative management of Achilles tendinopathy.

Diagnosis and treatment of Charcot arthropathy in diabetic patients

Charcot joint or neurogenic arthropathy in diabetes is a late complication invading the foot and ankle that results in dislocation, instability, and deformity of the affected area. Sensory neuropathy leads to numbness and malalignment of the foot and ankle or inadequate post-traumatic response, which results in progressive fractures, multiple joint dislocations, ulcerations, osteomyelitis, and amputation. Because of such serious consequences, understanding of pathophysiology is important in determining treatment strategies. Early diagnosis and appropriate treatment can prevent this destructive process.Current Concepts: The number of adults diabetic patients continuously increases. Health care and life expectancy will continue to improve with the development of medicine. As a result, the incidence of diabetes-related complications will increase. Diabetic Charcot joint will have a serious negative impact on the quality of life and financial burden on the diabetic patients. The goal of treatment for Charcot joint is not to build a normal foot, but to make a stable plantigrade foot that can be worn shoes. Therefore, it would be most important to understand the progress and characteristics of the disease and to develop an appropriate plan in order to select the appropriate treatment method.Discussion and Conclusion: Understanding Charcot joint and familiarization with its appropriate treatment should reduce the number of the cases of diabetic Charcot joint patients with disabilities or amputations.

Nonoperative Treatment of Achilles Tendinopathy / 대한족부족관절학회지

Achilles tendinopathy has seen good results with conservative management. However, the management of Achilles tendinopathy lacks evidence-based support, and tendinopathy patients are at risk of long-term morbidity with unpredictable clinical outcomes. Data suggests that 29% of tendinopathy patients required surgical intervention during the follow-up period. Chronic pain after damage to the Achilles tendon is a result of incomplete recovery of fibrous tissue. Recently, many procedures, including various injection treatments, have been tried without understanding proper preservation techniques and procedures for faster tendon recovery, especially for patients who want to quickly return to their daily lives. This article is an extensive literature review on nonoperative management of Achilles tendinopathy.

Anterolateral Minimally Invasive Plate Osteosynthesis of Distal Tibial Fractures Using an Anterolateral Locking Plate / 대한족부족관절학회지

PURPOSE: Anterolateral minimally invasive plate osteosynthesis (MIPO) was performed to treat patients with distal tibial fractures associated with open fractures or extensive soft tissue injuries, which is limited medial MIPO. The treatment results of the anterolateral MIPO technique were evaluated and analyzed.MATERIALS AND METHODS: Seventeen patients with distal tibial fractures associated with an open fracture or large bullae formation on the distal tibia medial side were treated with anterolateral MIPO using anterolateral locking plates. Within 24 hours of visiting the emergency room, external fixation was applied, and the medial side wound was managed. After damage control, the anterolateral locking plate was applied using an anterolateral MIPO technique. The union time, nonunion, or malunion were evaluated with regular postoperative radiographs. The ankle range of motion, operative time, blood loss, Iowa score, and wound complications were investigated.RESULTS: Radiological evidence of bony union was obtained in all cases. The mean time to union was 16.7 weeks (12~25 weeks). The mean operation time was 44.0 minutes. Regarding the ankle range of motion, the mean dorsiflexion was 15°, and the mean plantarflexion was 35°. Satisfactory results were obtained in 15 out of 17 cases; five results were classified as excellent, four were good, and six were fair. The mean blood loss was 125.2 mL. Two complications were recorded.CONCLUSION: In distal tibial fractures with severe medial soft tissue damage caused by high-energy trauma, the staged anterolateral MIPO technique using anterolateral locking plates is a useful alternative treatment to achieving optimal wound care, rapid union with biological fixation, and intra-articular reduction.

Delayed Lateral Row Anchor Failure in Suture Bridge Rotator Cuff Repair: A Report of 3 Cases

Compared to single row repair, use of lateral row anchors in suture bridge rotator cuff repair enhances repair strength and increases footprint contact area. If a lateral knotless anchor (push-in design) is inserted into osteoporotic bone, pull-out of the lateral row anchor can developed. However, failures of lateral row anchors have been reported at several months after surgery. In our cases, even though complete cuff healing occurred, delayed pull-out of the lateral row anchor in the suture bridge repair occurred. In comparison to a conventional medial anchor, further biomechanical evaluation of the pull-out force, design, and insertion angle of the lateral anchor is needed in future studies. We report three cases with delayed pull-out of lateral row anchor in suture bridge rotator cuff repair with a literature review.

Effects of Beraprost Sodium Evaluated by Digital Infrared Thermal Imaging in Diabetic Patients with Peripheral Arterial Disease / 대한족부족관절학회지

PURPOSE: This study examined the effects of beraprost sodium on digital infrared thermal images in patients with peripheral arterial disease caused by type 2 diabetes mellitus. MATERIALS AND METHODS: Twenty-five diabetic patients with peripheral arterial disease were treated with beraprost sodium in a prospective, multicenter, cohort study from February 2013 to December 2014. Beraprost sodium (40 μg) was administered orally 3 times daily (120 μg/day) for 6 months. The visual analogue scale (VAS) and digital infrared thermal imaging (DITI) were performed to compare the blood flow improvement between before and after dosing. RESULTS: Among the 25 patients included in the evaluation, 22 patients completed the study. A significant increase in body temperature was observed in the front and left side, particularly in the plantar side in DITI compared to that before and after administration. An increase in body temperature was observed at the frontal part from 28.1℃±2.3℃ to 29.1℃±2.1℃ (p=0.021), at the left side from 27.8℃±2.4℃ to 28.6℃±1.9℃ (p=0.028), at the plantar part at 24.0℃±1.5℃, and at the plantar part at 27.1℃±2.4℃ (p < 0.01). The VAS decreased significantly from 5.4±1.3 to 2.7±2.0 after 6 months of treatment (p < 0.01). CONCLUSION: Beraprost sodium is a safe and easy-to use oral medication for diabetes peripheral arterial disease. It can be expected to increase the blood flow and decrease the lower extremity pain statistically after being taken for 6 months.

The Clinical Features of Plantar Fascia Rupture / 대한족부족관절학회지

PURPOSE: The purpose of this study is to analyze the clinical features of plantar fascia rupture. MATERIALS AND METHODS: We retrospectively reviewed 312 patients with plantar fasciitis between March 2008 and February 2013. We investigated age, sex, site, visual analogue scale (VAS), body mass index (BMI), characteristics of pain, awareness of rupture, and duration of symptoms. Acute rupture was defined as a rupture that occurred during exercise; chronic rupture was defined as a degenerative rupture after plantar fasciitis. We investigated the frequency of acute and chronic rupture. RESULTS: Among 312 patients, 38 patients (12.2%) were diagnosed with plantar fascia rupture. Thirty-eight patients consisted of 14 men (36.8%) and 24 women (63.2%). The mean age of plantar fascia rupture was 58.29±12.54 years. The mean VAS score was 5.92 points (3~9 points). The mean BMI was 25.92±1.59 kg/m². Among the 38 patients, 2 patients had acute plantar fascia rupture and 36 had chronic plantar fascia rupture. In 34 patients—out of 36 chronic plantar fascia rupture, there were no subjective symptoms. CONCLUSION: Chronic rupture of the plantar fascia that occurred after plantar fasciitis was more common than acute rupture. Chronic rupture occurred at approximately 12% of patients treated with plantar fasciitis. In chronic rupture of the plantar fascia, there were no subjective symptoms of rupture. Therefore, we should doubt chronic rupture of plantar fascia when plantar fasciitis is prolonged.

Underestimated Sacroiliac Joint Lesion on Computed Tomography in Pelvic Open-book Injury: A Case Report / 대한고관절학회지

The classification of anteroposterior compression (APC) injury type is based on using static radiographs, stress radiographs are known as a useful adjunct in classifying type of APC pelvic injuries. According to a recent article, the intraoperative stress examination has led to a change in the treatment plan in more than 25% of patients on 22 patients presumed APC type I (symphyseal diastasis <2.5 cm) injuries. Here authors present a case demonstrating a necessity of intraoperative stress test for excluding concealed posterior ring disruption.

Complications of Reverse Total Shoulder Arthroplasty / 대한정형외과학회잡지

PURPOSE: The purpose of this study was to analyze complications after reverse total shoulder arthroplasty and report the clinical outcomes with review of previously reported studies. MATERIALS AND METHODS: Complications after reverse total shoulder arthroplasty were analyzed for 98 patients who underwent reverse total shoulder arthroplasty and were followed-up for at least 6 months. Of 98 patients, 22 were men and 76 were women. The mean age was 75.0+/-6.5 years (range, 59-92 years) with a mean follow-up period of 22+/-19 months (range, 6-74 months). The types and time of occurrence of complications, methods of treatment, and clinical outcomes at the final follow-up were analyzed. RESULTS: Complications occurred in 18 of 98 patients (18.4%). Seven of them received operative treatment and 11 were treated conservatively. Two cases had postoperative dislocations and were addressed with open reduction. In 2 cases, periprosthetic fractures occurred and were treated with open reduction and plate fixation. Two acromial stress fractures and 8 cases of heterotopic ossification were managed conservatively. Infection and humeral component loosening occurred in one case, respectively, and were treated with revision arthroplasty. Glenoid component loosening occurred in 2 cases, one of which was treated with revision arthroplasty and the other was managed conservatively. At the final follow-up, clinical outcomes showed a statistically significant improvement. Compared to groups with no complications, there were no significant differences in final clinical outcomes. Scapular notching occurred in 43.9% (43/98 cases). No statistically significant differences of clinical outcomes were observed between the scapular notching group and the no notching group (p>0.05). CONCLUSION: In our study, 18% of complications occurred after reverse total shoulder arthroplasty and final clinical outcomes of these complications showed significant improvement. Scapular notching developed in 44% and did not provide a significant clinical effect at short term follow-up.

Extra-Articular Ganglion Cysts around the Knee Joint

PURPOSE: The purpose of this study was to report clinical results of open excision of extra-articular ganglion cysts around the knee joint combined with arthroscopic management of intra-articular pathologies if present. MATERIALS AND METHODS: Of the total 107 cases of cystic lesions around the knee, 23 cases of extra-articular ganglion cysts were reviewed between January 2006 and July 2011. There were 13 males and 10 females with a mean age of 48 years (range, 30 to 73 years). The mean follow-up duration was 40 months (range, 30 to 60 months). Preoperative magnetic resonance imaging (MRI) scan was done in all cases. Open surgical excision of the cyst was performed after arthroscopic management of intra-articular pathologies in all but 1 case. At the last follow-up, Lysholm and International Knee Documentation Committee (IKDC) scores were evaluated and MRI was conducted to detect recurrence. RESULTS: The mean Lysholm and IKDC scores showed significant improvement (p=0.005 and 0.013, respectively).The location of the cysts was anterior in 9, lateral in 7, medial in 6, and posterosuperior in 1. Intra-articular pathologies were found in 16/23 cases (69.6%). In 10/23 cases (43%), the cyst was connected to the knee joint. Three months postoperative MRI did not show any recurrence of ganglion cysts except for 1 case. CONCLUSIONS: In the treatment of extra-articular ganglion cysts, MRI can be useful for detecting intra-articular lesions and connecting orifices, and arthroscopic management of intra-articular pathologies with open excision of the cyst should be considered as a viable treatment option.

Complications of Medial Unicompartmental Knee Arthroplasty

BACKGROUND: We report intra- and postoperative complications of unicompartmental knee arthroplasty (UKA). METHODS: This study was conducted on 246 cases of UKA which were performed for degenerative osteoarthritis confined to the medial compartment, from May 2002 to May 2010, for which follow-up periods longer than one year were available. Complications were divided into intra- and postoperative complications. Pre- and postoperative clinical scores, the range of motion, and radiologic findings were analyzed. RESULTS: Complications developed in a total of 24 cases (9.8%, 24/246). Among them, 6 cases had intraoperative complications while 18 had postoperative complications. Among the 6 intraoperative complications, one fracture of the medial tibial condyle, two fractures of the intercondylar eminence, one rupture of the medial collateral ligament, one widening of the peg hole leading to femoral component malposition and late failure, and one total knee arthroplasty (TKA) conversion of a large bony defect of tibial avascular necrosis were observed. Among the 18 postoperative complications, four cases of aseptic loosening of the femoral component, one soft tissue impingement due to malalignment, nine cases of polyethylene bearing dislocation, one case of suprapatellar bursitis, one periprosthetic fracture, one TKA conversion due to medial component overhanging, and one TKA conversion due to pain of unexplained cause were observed. CONCLUSIONS: The mid-term clinical outcomes of UKA were excellent in our study. However, the incidence of complications was very high (9.8%). To prevent intra- and postoperative complications, proper selection of the patients and accurate surgical techniques are required.

Comparison of Postoperative Bleeding and Complications between Cemented and Non-cemented Bipolar Hemiarthroplasty in Treatment of Unstable Pertrochanteric Fracture / 대한고관절학회지

PURPOSE: In cases of patients who underwent bipolar hemiarthroplasty (BPHA) for treatment of a pertrochanteric fracture, we compared and analyzed the amount of blood loss and complications between a group using the cemented stem and a group using the cementless stem. MATERIALS AND METHODS: A total of 104 patients who underwent BPHA for treatment of a pertrochanteric fracture in our hospital for three years and 10 months (From January 2008 to October 2011) were included in this study. Among the 104 patients, 64 patients with a cemented stem were categorized into group 1, and the other 40 patients with an uncemented stem were categorized into group 2. Before surgery, the type of stem was determined by the bone quality of the proximal femur, which had been evaluated with a simple X-ray. Then, after surgery, the amount of blood loss and complications were compared between the two groups. RESULTS: Expected blood loss during the operation was 389.8 cc in group 1, and 395.3 cc in group 2(P=0.88). Postoperatively, average drained blood loss was 219.6 cc in group 1, and 338.1 cc in group 2. Cemented stem was associated with significantly less blood loss (P=0.004). The average operation time in group 1 and in group 2 was 96 minutes and 72 minutes. There was no significant difference in operating time (P=0.85). In addition, there was no difference in INR (International Normalized Ratio) and BMI (Body Mass Index) (P=0.28 and 0.08) regarding total amount of postoperatively drained blood loss. There was no occurrence of hypotensive shock or fatal pulmonary embolism in either group. Three cases of periprosthetic fracture occurred in group 2. CONCLUSION: Fewer occurrences of postoperative blood loss and fewer complications were observed in the cemented stem group than in the cementless stem group. Preoperative evaluation of bone quality and use of the cement stem for patients with poor bone quality may be a good treatment method that can help to reduce complications.

Surgical Treatment of Distal Tibia Fractures / 대한족부족관절학회지

Distal tibia fractures were mainly caused by high energy trauma and the lower legs were enveloped in poor soft tissue. Therefore, there are many open fractures and concomitant soft tissue injuries in distal tibia fractures. For the restoration of ankle function, the surgical treatment was performed in distal tibia fractures. However, it is difficult to treat the distal tibia fracture surgically. There are many complications in distal tibia fracture due to highly comminuted fracture and poor soft tissue condition. There are many surgical methods for distal tibia fractures, such as, external fixator, intramedulary nailling, open reduction & internal fixation, and minimally invasive plate osteosynthesis. We reviewed the surgical treatments of distal tibia fractures.

Fixation of Greater Trochanter Using an AO Trochanteric Reattachment Device (AO TRD) in Arthroplasty for Intertrochanteric Femur Fracture of Elderly Patients / 대한고관절학회지

PURPOSE: The purpose of this study is to evaluate the efficacy of the trochanter reattachment device (TRD) as a firm internal fixation method for bipolar hemiarthroplasty in unstable intertrochanteric femur fracture for elderly patients over 65 years old. MATERIALS AND METHODS: From September 2010 to April 2011, 19 patients (M/F: 1/18) over 65 years old were treated with bipolar hemiarthroplasty using the TRD as a fixation method for intertrochanteric femur fracture with above Evans-Jensen classification 2nd (above AO/OTA A1.3). They were followed up for more than 12 months(12-29 months). RESULTS: Out of 19 patients, only one had loosening of the TRD plate and reoperation was performed. There was no dislocation after surgery. Complete fracture union was observed in 19 patients with follow up of more than 12 months. CONCLUSION: In bipolar hemiarthroplasty for intertrochanteric femur fracture, TRD produced easy and firm fixation. Additional fixation with TRD restoring abduction force by union of greater trochanter can be a good choice of surgery for avoidance of dislocation and chronic pain due to trochanteric nonunion after arthroplasty.

Clinical Features of Distal Tibial Fractures and Treatment Results of Minimally Invasive Plate Osteosynthesis / 대한족부족관절학회지

PURPOSE: The purpose of this study is to analyze the clinical features of distal tibia fractures and to evaluate the treatment outcomes of minimally invasive plate osteosynthesis (MIPO). MATERIALS AND METHODS: From January 2004 to December 2009, 84 cases of 81 patients treated with plate fixation for distal tibia fracture were enrolled in this retrospective review. We investigated age, sex, injury mechanism, fracture patterns, and complications, and the clinical features were analyzed. To evaluate the treatment outcomes of MIPO, we divided into two groups. MIPO group consisted of 55 patients were treated with MIPO technique and conventional group consisted of 18 patients were treated with open reduction and internal fixation with conventional anterolateral plating. The results were compared between two groups by assessing bony union time, operation time, amount of blood loss, range of ankle motion, clinical score by American Orthopaedic Foot and Ankle Society (AOFAS) score, and post-operative complications. RESULTS: The mean age of 81 patients with distal tibia fracture was 54.8 years. According to AO classification, A1:2:3 were 16, 20, 16 patients, B1:2:3 were 2, 8, 7, C1:2:3 were 1, 3, 11 patients. According to injury mechanism, slip down injury was patients, traffic accident was 26, fall from height injury was 14 patients respectively. The type A fractures were lower energy trauma and more older patients. The type C fractures were higher energy trauma and younger patients. MIPO group was better than conventional group in operative time, blood loss, bony union time, and ankle joint motion. In complications, MIPO group showed no nonunion and infection, one malunion, one skin necrosis, nine skin irritations, and one screw breakage. Conventional group showed two nonunion, four infections, two skin necrosis, and one metal failure. CONCLUSION: Distal tibial fractures caused by low energy trauma were on the increase. Minimal invasive plate osteosynthesis was shorter bony union time and operation time, less blood loss, and larger ankle motions than conventional open reduction and plate fixation.

Comparison between the 2-peg Type and the Conventional Type of Oxford Unicompartmental Knee Arthroplasty: The Clinical and Radiological Results of Short-term Follow-up

PURPOSE: The purpose of this study was compared the clinical results, the range of motion and the radiologic evaluations of the classical type unicomparmental knee arthroplasty. MATERIALS AND METHODS: From February, 2007 to September, 50 patients who underwent minimal invasive unicompartmental knee arthroplasty for treating medial compartment osteoarthritis of the knee were enrolled. The conventional Oxford unicompartmental knee arthroplasty with a 1-peg design was performed in 26 patients, and these patients were 5 males and 21 females with a mean age of 65.1 (+/-6.9). New 2-peg design unicompartmental knee arthroplasty was performed in 24 patients and these patients were 5 males and 19 females with a mean age of 62.5 (+/-8.8). The clinical results, the range of motion and the radiologic results were compared between the preoperative period and postoperative 1 year. RESULTS: The clinical scores such as the International Knee Documentation Committee and Hospital for Special Surgery scores were improved from preoperative 61.7 and 63.6 to postoperative 74.0 and 80.3, respectively, but there were no significant differences between the 2 groups (p=0.313, p=0.763). The radiologic evaluations showed no significant differences. Yet the flexion/extension angle was significantly different between the groups, but this was within acceptable limits. CONCLUSION: On the short term follow up, the clinical result, range of motion and radiologic evaluation showed no significant difference between the new design (2-peg type) Oxford unicompartmental arthroplasty and the conventional kind. Both the conventional and 2-peg type unicompartmental arthroplasties can be useful treatments for medial compartment osteoarthritis.

Results of Non-Operative Treatment of the Zone I, II Fifth Metatarsal Base Fracture / 대한족부족관절학회지

PURPOSE: To evaluate the results of conservative treatment of zone I, II 5th metatarsal base fracture. MATERIALS AND METHODS: Between May 2004 and June 2010, a total of 58 patients of zone I, II 5th metatarsal base fractures were included in this study. The mean length of follow-up was 13.5 months (12~36 months). All of the patients were treated with full-weight-bearing short leg cast immobilization for 4 weeks and wooden sole shoes for 4 weeks. The results were evaluated about the radiographic union, the midfoot scale of American Orthopaedic Foot and Ankle Society (AOFAS), the tenderness on fracture site and other complications. RESULTS: All patients were able to return to their prior levels of activity. The mean time for union as shown on radiographs was 45.5 days, and the mean midfoot scale of AOFAS was 99.7 points. There were no nonunions or refractures during the follow-up. CONCLUSION: The conservative treatment with full-weight-bearing short leg cast and wooden sole shoes seems to give good results for zone I, II 5th metatarsal base fracture.

Treatment of Distal Femoral Fractures Using Polyaxial Locking Plate

PURPOSE: To report the clinical outcome of polyaxial locking plate (Noncontact bridging (NCB) plate (Zimmer, Warsaw, Indiana)) for the treatment of distal femur fracture with minimal invasive percutaneous periosteal osteosynthsis (MIPPO) technique. MATERIALS AND METHODS: Between February 2008 to April 2010, twenty six patients (11 men, 15 women), twenty eight cases diagnosed as distal femoral fractures are enrolled in this retrospective study. The mean age of the patients was 63 years (34 to 85) and the mean follow-up was 20.3 months (12 to 32). According to the AO/ASIF classification, 15 fractures were type A, 1 type B and 9 type C. And there were 3 periprsthetic fractures around knee. The analysis of the clinical and radiologic outcome were performed by Sanders functional evaluation scale and radiologic follow up after operation, respectively. RESULTS: Among 28 cases, 25 cases united without additional operation. According to Sanders functional evaluation scale, there were 11 excellent, 9 good, 4 fair, 2 poor. As complications, there were 1 knee stiffness, 1 delayed union, 1 implant failure with refracture, 1 implant loosening. Three patients except one knee stiffness, underwent a second LISS plating using NCB plate and and bone grafting, resulting in a satisfactory final outcome. CONCLUSION: Internal fixation using polyaxial locking plate with MIPO technique may be one of the most effective methods for the treatment of distal femoral fractures.