{"title":"[Effect of different bone grafting methods and internal fixation on mechanical stability of Schatzker type <b>Ⅱ</b> tibial plateau fracture].","authors":"Zhongzheng Wang, Yuchuan Wang, Siyu Tian, Zitao Wang, Ruipeng Zhang, Xiaodong Lian, Zhanle Zheng, Yingze Zhang","doi":"10.7507/1002-1892.202505055","DOIUrl":"10.7507/1002-1892.202505055","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the biomechanical characteristics of Schatzker type Ⅱ tibial plateau fracture fixed by different bone grafting methods and internal fixations.</p><p><strong>Methods: </strong>Twenty-four embalmed specimens of adult knee joint were selected to make Schatzker type Ⅱ tibial plateau fracture models, which were randomly divided into 8 groups (groups A1-D1 and groups A2-D2, <i>n</i>=3). After all the fracture models were restored, non-structural iliac crest bone grafts were implanted in group A1-D1, and structural iliac crest bone grafts in groups A2-D2. Following bone grafting, group A was fixed with a lateral golf locking plate, group B was fixed with lateral golf locking plate combined compression bolt, group C was fixed with lateral tibial \"L\"-shaped locking plate, and group D was fixed with lateral tibial \"L\"-shaped locking plate combined compression bolt. Compression and cyclic loading tests were performed on a biomechanical testing machine. A distal femur specimen or a 4-cm-diameter homemade bone cement ball were used as a pressure application mould for each group of models. The specimens were loaded with local compression at a rate of 10 N/s and the mechanical loads were recorded when the vertical displacement of the split bone block reached 2 mm. Then, compressive and cyclic loading tests were conducted on the fixed models of each group. The specimens were compression loaded to 100, 400, 700, and 1 000 N at a speed of 10 N/s to record the vertical displacement of the split bone block. The specimens were also subjected to cyclic loading at 5 Hz and 10 N/s within the ranges 100-300, 100-500, 100-700, and 100-1 000 N to record the vertical displacement of the split bone block at the end of the entire cyclic loading test. The specimens were subjected to cyclic loading tests and the vertical displacement of the split bone block was recorded at the end of the test.</p><p><strong>Results: </strong>When the vertical displacement of the collapsed bone block reached 2 mm, the mechanical load of groups A2-D2 was significantly greater than that of groups A1-D1 ( <i>P</i><0.05). The mechanical load of groups B and D was significantly greater than that of group A under the two bone grafting methods ( <i>P</i><0.05); the local mechanical load of group D was significantly greater than that of groups B and C under the structural iliac crest bone grafts ( <i>P</i><0.05). There was no significant difference ( <i>P</i>>0.05) in the vertical displacement of the split bone blocks between the two bone graft methods when the compressive load was 100, 400, 700 N and the cyclic load was 100-300, 100-500, 100-700 N in groups A-D. However, the vertical displacement of bone block in groups A1-D1 was significantly greater than that in groups A2-D2 ( <i>P</i><0.05) when the compressive loading was 1 000 N and the cyclic load was 100-1 000 N. The vertical displacement of bone block in group B was significantly smaller than that i","PeriodicalId":23979,"journal":{"name":"中国修复重建外科杂志","volume":"39 7","pages":"807-813"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12279921/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144638224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Experimental study on promotion of skin radiation damage repair by icarin via HIF-2α/VEGF/Notch pathway to enhance the paracrine function of adipose-derived stem cells].","authors":"Yuer Zuo, Shuangyi Li, Siyu Tan, Xiaohao Hu, Zhou Li, Haoxi Li","doi":"10.7507/1002-1892.202503089","DOIUrl":"10.7507/1002-1892.202503089","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the effectiveness and preliminary mechanisms of icariin (ICA) in enhancing the reparative effects of adipose-derived stem cells (ADSCs) on skin radiation damagies in rats.</p><p><strong>Methods: </strong>Twelve SPF-grade Sprague Dawley rats [body weight (220±10) g] were subjected to a single dose of 10 Gy X-ray irradiation on a 1.5 cm×1.5 cm area of their dorsal skin, with a dose rate of 200 cGy/min to make skin radiation damage model. After successful modelling, the rats were randomly divided into 4 groups ( <i>n</i>=3), and on day 2, the corresponding cells were injected subcutaneously into the irradiated wounds: group A received 0.1 mL of rat ADSCs (1×10 <sup>7</sup>cells/mL), group B received 0.1 mL of rat ADSCs (1×10 <sup>7</sup>cells/mL)+1 μmol/L ICA (0.1 mL), group C received 0.1 mL of rat ADSCs (1×10 <sup>7</sup>cells/mL) pretreated with a hypoxia-inducible factor 2α (HIF-2α) inhibitor+1 μmol/L ICA (0.1 mL), and group D received 0.1 mL of rat ADSCs (1×10 <sup>7</sup>cells/mL) pretreated with a Notch1 inhibitor+1 μmol/L ICA (0.1 mL). All treatments were administered as single doses. The skin injury in the irradiated areas of the rats was observed continuously from day 1 to day 7 after modelling. On day 28, the rats were sacrificed, and skin tissues from the irradiated areas were harvested for histological examination (HE staining and Masson staining) to assess the repair status and for quantitative collagen content detection. Immunohistochemical staining was performed to detect CD31 expression, while Western blot and real-time fluorescence quantitative PCR (qRT-PCR) were used to measure the protein and mRNA relative expression levels of vascular endothelial growth factor (VEGF), platelet-derived growth factor BB (PDGF-BB), fibroblast growth factor 2 (FGF-2), interleukin 10 (IL-10), transforming growth factor β (TGF-β), HIF-2α, and Notch1, 2, and 3.</p><p><strong>Results: </strong>All groups exhibited skin ulcers and redness after irradiation. On day 3, exudation of tissue fluid was observed in all groups. On day 7, group B showed significantly smaller skin injury areas compared to the other 3 groups. On day 28, histological examination revealed that the epidermis was thickened and the dermal fibers were slightly disordered with occasional inflammatory cell aggregation in group A. In group B, the epidermis appeared more normal, the dermal fibers were more orderly, and there was an increase in new blood vessels without significant inflammatory cell aggregation. In contrast, groups C and D showed significantly increased epidermal thickness, disordered and disrupted dermal fibers. Group B had higher collagen fiber content than the other 3 groups, and group D had lower content than group A, with significant differences ( <i>P</i><0.05). Immunohistochemical staining showed that group B had significantly higher CD31 expression than the other 3 groups, while groups C and D had lower expression than gro","PeriodicalId":23979,"journal":{"name":"中国修复重建外科杂志","volume":"39 7","pages":"881-890"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12279908/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144638230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Reconstruction of bone defects after resection of osteosarcoma in children with artificial hemi-knee prosthesis].","authors":"Rongkai Shen, Meng Chen, Fei Chen, Yaoguang Song, Xia Zhu","doi":"10.7507/1002-1892.202503035","DOIUrl":"10.7507/1002-1892.202503035","url":null,"abstract":"<p><strong>Objective: </strong>To explore the effectiveness of artificial hemi-knee prosthesis reconstruction for bone defects after resection of pediatric osteosarcoma.</p><p><strong>Methods: </strong>A retrospective analysis was conducted on the clinical data of 18 children with osteosarcoma who met the selection criteria and were treated between January 2016 and December 2019. There were 11 males and 7 females, aged 6-10 years (mean, 8.9 years). Osteosarcoma located in the distal femur in 11 cases and the proximal tibia in 7 cases. Among them, 12 cases were conventional osteosarcoma and 6 cases were small cell osteosarcoma, with a disease duration of 1-9 months (mean, 3.1 months). All patients received 2 cycles of preoperative chemotherapy with doxorubicin, cisplatin, and ifosfamide. After en bloc tumor segment resection, bone defects were reconstructed using custom-made artificial hemi-knee prostheses. Rehabilitation training was initiated at 8 weeks postoperatively under the protection of a knee immobilizer brace, combined with 4 cycles of adjuvant chemotherapy. During follow-up, lower limb growth length and limb shortening (compared with the healthy side) were measured, and limb function was evaluated using the Musculoskeletal Tumor Society-93 (MSTS-93) scoring system.</p><p><strong>Results: </strong>All surgeries were successfully completed, with an operation time of 2.0-3.1 hours (mean, 2.4 hours) and intraoperative blood loss of 180-320 mL (mean, 230.0 mL). Incisional edge necrosis occurred in 1 case at 10 days postoperatively, while the incisions of the remaining 17 patients healed by first intention. One case developed periprosthetic infection caused by <i>Staphylococcus aureus</i> at 1 week postoperatively, which was cured after symptomatic treatment. All 18 patients were followed up 60-96 months (mean, 74.2 months). No local tumor recurrence was observed during follow-up. Imaging examinations showed prosthesis loosening in 2 cases, while the prosthesis of other patients were well-positioned. At last follow-up, the knee joint range of motion was 80°-120° (mean, 106.7°). The MSTS-93 score was 16-29 (mean, 24.7), with 12 cases rated as excellent, 5 good, and 1 fair. The patients' height increased by 12.8-20.0 cm (mean, 15.5 cm), the lower limb growth length was 6.0-13.0 cm (mean, 9.7 cm), and limb shortening was 1.8-4.6 cm (mean, 3.1 cm). There was no significant difference in MSTS-93 scores, lower limb growth length, or limb shortening between the distal femur group and the proximal tibia group ( <i>P</i>>0.05).</p><p><strong>Conclusion: </strong>Artificial hemi-knee prosthesis reconstruction can preserve the adjacent normal epiphysis of the knee joint, maximize limb growth potential, and reduce adult limb length discrepancy, making it a suitable reconstruction option for children with knee osteosarcoma.</p>","PeriodicalId":23979,"journal":{"name":"中国修复重建外科杂志","volume":"39 7","pages":"824-830"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12279925/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144638232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Suture anchor technique without knots for reconstruction of anterior talofibular ligament combined with reinforcement of inferior extensor retinaculum for treatment of chronic lateral ankle instability].","authors":"Dongchao Li, Aiguo Wang, Hongyang Xu, Qian Zhao, Jingmin Huang","doi":"10.7507/1002-1892.202504022","DOIUrl":"10.7507/1002-1892.202504022","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the effectiveness of the suture anchor technique without knots for reconstruction of the anterior talofibular ligament (ATFL) combined with the reinforcement of the inferior extensor retinaculum in treating chronic lateral ankle instability (CLAI).</p><p><strong>Methods: </strong>The clinical data of 31 patients with CLAI who were admitted between August 2017 and December 2023 and met the selection criteria were retrospectively analyzed. There were 18 males and 13 females, with an age range from 20 to 48 years (mean, 34.6 years). All patients had a history of repeated ankle sprain, with a disease duration of 6-18 months (mean, 9.65 months). The anterior drawer test and inversion stress test were positive, and tenderness was present in the ligament area. Stress X-ray films of the ankle joint showed a talar tilt angle of (10.00±2.78)° and an anterior talar displacement of (9.48±1.96) mm on the affected side. MRI revealed discontinuity, tortuosity, or disappearance of the ATFL structure. Preoperatively, the visual analogue scale (VAS) score was 5.2±2.1, and the American Orthopaedic Foot and Ankle Society (AOFAS) score was 62.9±7.1. All patients underwent arthroscopic debridement of the ankle joint followed by reconstruction of the ATFL using the suture anchor technique without knots combined with reinforcement of the inferior extensor retinaculum. Postoperatively, pain and function were assessed using the VAS and AOFAS scores. Stress X-ray films were taken to measure the talar tilt angle and anterior talar displacement to evaluate changes in ankle joint stability. Patient satisfaction was assessed according to the Insall criteria.</p><p><strong>Results: </strong>All 31 surgeries were successfully completed. One case had wound exudation, while the remaining surgical incisions healed by first intention. Two cases experienced numbness on the lateral aspect of the foot, which disappeared within 1 month after operation. All patients were followed up 15-84 months (mean, 47.2 months). No complication such as anchor loosening, recurrent lateral ankle instability, superficial peroneal nerve injury, rejection reaction, or wound infection occurred postoperatively. The anterior drawer test and inversion stress test were negative at 3 months after operation. Stress X-ray films taken at 3 months after operation showed the talar tilt angle of (2.86±1.72)° and the anterior talar displacement of (2.97±1.32) mm, both of which were significantly different from the preoperative values ( <i>t</i>=12.218, <i>P</i><0.001; <i>t</i>=15.367, <i>P</i><0.001). At last follow-up, 2 patients had ankle swelling after exercise, which resolved spontaneously with rest; all 31 patients returned to their pre-injury level of sports or had no significant discomfort in daily activities. At last follow-up, 25 patients were pain-free, 4 had mild pain after exercise, and 2 had mild pain after walking more than 2 000 meters. The VAS score was 0.8","PeriodicalId":23979,"journal":{"name":"中国修复重建外科杂志","volume":"39 7","pages":"837-842"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12279903/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144638244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Early effectiveness of transosseous suture fixation in treatment of recurrent acute patellar dislocation with patellar osteochondral fractures].","authors":"Junliang Liu, Longxiang Zhai, Zhenmu Xu, Aoqiu Wu, Ding Zhou, Yuchen He, Qian Liu, Qi Tang, Weihong Zhu","doi":"10.7507/1002-1892.202504009","DOIUrl":"10.7507/1002-1892.202504009","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the early effectiveness of transosseous suture fixation in treating recurrent acute patellar dislocation with patellar osteochondral fractures (OCFs).</p><p><strong>Methods: </strong>A retrospective analysis was conducted on 19 patients with recurrent acute patellar dislocation and patellar OCFs, who underwent transosseous suture fixation between January 2018 and December 2022 and were followed up 2 years. The cohort included 8 males and 11 females, aged 13-21 years (mean, 16.2 years). Patients experienced 2-5 times of patellar dislocation (mean, 3.2 times). The interval from the last dislocation to operation ranged from 3 to 15 days (mean, 9.6 days). Preoperative imaging revealed the intra-articular osteochondral fragments and medial patellofemoral ligament (MPFL) injury. Clinical outcomes were evaluated using the visual analogue scale (VAS) score for pain, the International Knee Documentation Committee (IKDC) score, the Hospital for Special Surgery (HSS) knee score, the Lysholm score, and the Tegner score. Postoperative complications were recorded. During follow-up, the knee X-ray films, CT, and MRI were taken to evaluate fragment healing, displacement, and the morphology and tension of the MPFL reconstruction graft.</p><p><strong>Results: </strong>All incisions healed primarily, and no complication occurred such as infection, joint stiffness, patellofemoral arthritis, or redislocation. Patients were followed up 24-60 months (mean, 43.5 months). At 12 months postoperatively and the last follow-up, significant improvements ( <i>P</i><0.05) were observed in VAS, Lysholm, IKDC, HSS, and Tegner scores compared to preoperative values. Further improvements were observed at last follow-up compared with the 12 months postoperatively, and the differences were significant ( <i>P</i><0.05). Imaging studies demonstrated satisfactory osteochondral fragment positioning with stable fixation. At last follow-up, all fragments had healed, and MPFL reconstruction grafts exhibited optimal morphology and tension. No joint adhesion or fragment displacement occurred.</p><p><strong>Conclusion: </strong>For recurrent acute patellar dislocation with patellar OCFs, transosseous suture fixation proves to be both safe and effective, achieving satisfactory early effectiveness.</p>","PeriodicalId":23979,"journal":{"name":"中国修复重建外科杂志","volume":"39 7","pages":"831-836"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12279919/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144638223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
中国修复重建外科杂志Pub Date : 2025-07-15DOI: 10.7507/1002-1892.202504094
Yun Wang, Shune Xiao
{"title":"[Research progress on rodent models of secondary lymphedema].","authors":"Yun Wang, Shune Xiao","doi":"10.7507/1002-1892.202504094","DOIUrl":"10.7507/1002-1892.202504094","url":null,"abstract":"<p><strong>Objective: </strong>To summarize the research progress of rodent models of secondary lymphedema (SL) and provide a reference for selecting appropriate animal models in SL research.</p><p><strong>Methods: </strong>Recent literature on rodent SL models at home and abroad was comprehensively analyzed, summarizing model categories, development techniques, strengths, and weaknesses.</p><p><strong>Results: </strong>Current research primarily utilizes rats and mice to establish SL models. The main model types include hind limb, forelimb, tail, and head/neck models. The hind limb model is the most frequently employed, typically requiring surgery combined with irradiation to induce stable chronic edema. Forelimb models primarily simulate upper limb lymphedema, but exhibit relatively rapid edema resolution. Tail models offer operational simplicity and are predominantly used for studying acute edema mechanisms and interventions; however, they demonstrate poor clinical relevance. Emerging head/neck models provide a valuable tool for investigating head and neck cancer-associated lymphedema. These models exhibit variations in lymphedema duration, degree of fibrosis, and edema incidences.</p><p><strong>Conclusion: </strong>Existing models still fall short in faithfully replicating the chronicity, fibrosis, fat deposition, and complex microenvironment characteristic of human chronic lymphedema. Future research must integrate multidisciplinary approaches, optimize model construction strategies, and explore novel modeling approaches to more accurately mimic the human disease and advance SL prevention and treatment research.</p>","PeriodicalId":23979,"journal":{"name":"中国修复重建外科杂志","volume":"39 7","pages":"919-924"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12279906/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144638233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
中国修复重建外科杂志Pub Date : 2025-07-15DOI: 10.7507/1002-1892.202504110
Di Jia, Qiguo Ran, Fei Sun, Kun Zhang, Yanlin Li
{"title":"[Effectiveness analysis of arthroscopic outside-in release for gluteal muscle contracture in supine position].","authors":"Di Jia, Qiguo Ran, Fei Sun, Kun Zhang, Yanlin Li","doi":"10.7507/1002-1892.202504110","DOIUrl":"10.7507/1002-1892.202504110","url":null,"abstract":"<p><strong>Objective: </strong>To compare the effectiveness of arthroscopic outside-in release for gluteal muscle contracture (GMC) in supine position versus lateral decubitus position.</p><p><strong>Methods: </strong>The clinical data of 34 GMC patients meeting selection criteria between January 2022 and May 2023 were retrospectively analyzed. Arthroscopic contracture band release was performed in the lateral decubitus position (lateral group, <i>n</i>=14) or the supine position (supine group, <i>n</i>=20). No significant difference ( <i>P</i>>0.05) was observed between groups in baseline data, including gender, age, body mass index, preoperative GMC functional quantitative score, modified Harris hip score (mHHS), visual analogue scale (VAS) pain score, and hip flexion/adduction range of motion (ROM). The total operation time, release procedure time, non-release procedure time, intraoperative blood loss, hospital stay, and postoperative complications were recorded and compared. Functional outcomes (GMC functional quantitative score, mHHS score, VAS score, hip flexion/adduction ROM) were evaluated preoperatively and at 3, 12, and 24 months postoperatively.</p><p><strong>Results: </strong>All incisions healed by first intention without major vascular or neurological complications. In the lateral group, 3 patients developed patchy bruising on bilateral buttocks and posterior thighs at 3 days after operation, which resolved after 2 weeks of ice packs and ultrasonic therapy. The supine group demonstrated significantly shorter total operation time, non-release procedure time, hospital stay, and reduced intraoperative blood loss versus the lateral group ( <i>P</i><0.05). No significant difference was found in release procedure time ( <i>P</i>>0.05). All patients were followed up 24 months. Both groups showed significant improvements ( <i>P</i><0.05) in mHHS score, GMC functional quantitative score, VAS score, and hip adduction/flexion ROM at all postoperative timepoints compared to preoperative values, with no significant intergroup differences ( <i>P</i>>0.05).</p><p><strong>Conclusion: </strong>Both surgical positions effectively improve hip function in GMC patients. However, the supine position offers significant advantages over the lateral decubitus position in operation time, anesthesia management, intraoperative blood loss control, and reduced hospital stay.</p>","PeriodicalId":23979,"journal":{"name":"中国修复重建外科杂志","volume":"39 7","pages":"848-854"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12279915/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144638226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Effectiveness analysis of Zhang's double reverse traction reducer in minimally invasive treatment of bilateral tibial plateau fractures].","authors":"Zhanle Zheng, Baoheng Fan, Zhongzheng Wang, Rongqing Ren, Yiyang Wang, Ning Wei, Yingze Zhang","doi":"10.7507/1002-1892.202505053","DOIUrl":"10.7507/1002-1892.202505053","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the effectiveness and safety of minimally invasive treatment for bilateral tibial plateau fractures using the double reverse traction reducer.</p><p><strong>Methods: </strong>The clinical data of 4 patients with bilateral tibial plateau fractures who met the selection criteria and treated between January 2016 and April 2024 were retrospectively analyzed. The cohort included 3 males and 1 female, aged 30-65 years (mean, 52.5 years). Injury mechanisms comprised traffic accidents (2 cases) and falls (2 cases). According to the Schatzker classification, 2 limbs were type Ⅱ and 6 were type Ⅵ. The time from injury to surgery ranged from 5 to 9 days (mean, 7 days). All patients underwent minimally invasive reduction using the double reverse traction reducer. Surgical duration, intraoperative blood loss, and hospitalization time were recorded. Functional outcomes were assessed at last follow-up using the Hospital for Special Surgery (HSS) knee score and range of motion (ROM), while fracture reduction quality was evaluated using the Rasmussen radiological score.</p><p><strong>Results: </strong>All 4 patients successfully completed the procedure without conversion to open reduction. The total mean operation time was 80.25 minutes (range, 73-86 minutes), with a mean total intraoperative blood loss of 132.5 mL (range, 100-150 mL). The mean hospitalization time was 13.5 days (range, 11-16 days). All incisions healed primarily without neurovascular complications. X-ray film at 1 day after operation confirmed satisfactory reduction and articular surface alignment. Follow-up time ranged from 12 to 26 months (mean, 17.0 months). Fractures achieved clinical union at an average of 13 weeks (range, 12-16 weeks). No complication, such as deep vein thrombosis, joint stiffness, post-traumatic arthritis, or implant failure, was observed. At last follow-up, the mean HSS score was 92.9 (range, 90-97), mean knee ROM was 128.1° (range, 115°-135°), and mean Rasmussen radiological score was 16.4 (range, 15-19), with 2 limbs rated as excellent and 6 as good.</p><p><strong>Conclusion: </strong>The double reverse traction reducer facilitates minimally invasive treatment of bilateral tibial plateau fractures with advantages including minimal trauma, shorter surgical duration, precise reduction, and fewer complications, effectively promoting fracture healing and functional recovery of the knee joint.</p>","PeriodicalId":23979,"journal":{"name":"中国修复重建外科杂志","volume":"39 7","pages":"789-794"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12279922/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144638227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
中国修复重建外科杂志Pub Date : 2025-07-15DOI: 10.7507/1002-1892.202503114
Bo Hu, Junqing Wang, Hui Zhang, Tao Deng, Yong Nie, Kang Li
{"title":"[Difference of compensatory mechanisms in bilateral knee osteoarthritis patients of varying severity].","authors":"Bo Hu, Junqing Wang, Hui Zhang, Tao Deng, Yong Nie, Kang Li","doi":"10.7507/1002-1892.202503114","DOIUrl":"10.7507/1002-1892.202503114","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the load distribution on the more painful and less painful limbs in patients with mild-to-moderate and severe bilateral knee osteoarthritis (KOA) and explore the compensatory mechanisms in both limbs among bilateral KOA patients with different severity levels.</p><p><strong>Methods: </strong>A total of 113 participants were enrolled between July 2022 and September 2023. This cohort comprised 43 patients with mild-to-moderate bilateral KOA (Kellgren-Lawrence grade 2-3), 43 patients with severe bilateral KOA (Kellgren-Lawrence grade 4), and 27 healthy volunteers (healthy control group). The visual analogue scale (VAS) score for pain, the Hospital for Special Surgery (HSS) score, passive knee range of motion (ROM), and hip-knee-ankle angle (HKA) were used to assess walking pain intensity, joint function, and lower limb alignment in KOA patients, respectively. Motion trajectories of reflective markers and ground reaction force data during walking were captured using a gait analysis system. Musculoskeletal modeling was then employed to calculate biomechanical parameters, including the peak knee adduction moment (KAM), KAM impulse, peak joint contact force (JCF), and peak medial/lateral contact forces (MCF/LCF). Statistical analyses were performed to compare differences in clinical and gait parameters between bilateral limbs. Additionally, one-dimensional statistical parametric mapping was utilized to analyze temporal gait data.</p><p><strong>Results: </strong>Mild-to-moderate KOA patients showed the significantly higher HSS score (67.7±7.9) than severe KOA patients (51.9±8.9; <i>t</i>=8.747, <i>P</i><0.001). The more painful limb in all KOA patients exhibited significantly greater HKA and higher VAS scores compared to the less painful limb ( <i>P</i><0.05). While bilateral knee ROM did not differ significantly in mild-to-moderate KOA patients ( <i>P</i>>0.05), the severe KOA patients had significantly reduced ROM in the more painful limb versus the less painful limb ( <i>P</i><0.05). Healthy controls showed no significant bilateral difference in any biomechanical parameters ( <i>P</i>>0.05). All KOA patients demonstrated longer stance time on the less painful limb ( <i>P</i><0.05). Critically, severe KOA patients exhibited significantly higher peak KAM, KAM impulse, and peak MCF in the more painful limb ( <i>P</i><0.05), while mild-to-moderate KOA patients showed the opposite pattern with lower peak KAM and KAM impulse in the more painful limb ( <i>P</i><0.05) and a similar trend for peak MCF.</p><p><strong>Conclusion: </strong>Patients with mild-to-moderate KOA effectively reduce load on the more painful limb through compensatory mechanisms in the less painful limb. Conversely, severe bilateral varus deformities in advanced KOA patients nullify compensatory capacity in the less painful limb, paradoxically increasing load on the more painful limb. This dichotomy necessitates personalized management strateg","PeriodicalId":23979,"journal":{"name":"中国修复重建外科杂志","volume":"39 7","pages":"861-868"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12279917/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144638222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
中国修复重建外科杂志Pub Date : 2025-07-15DOI: 10.7507/1002-1892.202504112
Wei Guo
{"title":"[Interpretation of important issues of the secondary clinical practice guideline on management of primary malignant bone tumors by the Japanese Orthopaedic Association].","authors":"Wei Guo","doi":"10.7507/1002-1892.202504112","DOIUrl":"10.7507/1002-1892.202504112","url":null,"abstract":"<p><p>Primary malignant bone tumors are extremely rare. Osteosarcoma, chondrosarcoma, Ewing's sarcoma, and myeloma are the most common malignancy in bone. Osteosarcoma and Ewing's sarcoma are common in children and adolescents, and the tumors are high lethality due to the high rate of pulmonary metastasis. While chondrosarcoma, myeloma, and chordoma are more common in middle aged and elderly people. Japanese Orthopaedic Association (JOA) published the secondary clinical practice guideline on the management of primary malignant bone tumors. We put an emphasis on explanation some important issue of this guideline for help Chinese musculoskeletal tumor professionals in clinical practice.</p>","PeriodicalId":23979,"journal":{"name":"中国修复重建外科杂志","volume":"39 7","pages":"814-823"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12279920/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144638231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}