摘要:目的:探討地震傷員中膝關節損傷的機制、類型及處理方法。 方法:對我院收入住院的2728例 5·12汶川特大地震傷員傷情特點進行分析,篩選出有膝關節損傷的病例進行分析。 結果: 膝關節損傷前三位分別是髕骨骨折(42.15%)、脛骨平臺骨折(21.05%)、股骨髁骨折(13.16%),這與人們在地震時奔跑摔傷以及被房屋倒塌砸傷有很大關系。結論:地震后膝關節損傷其發病率、受傷機制、損傷類型、合并傷情況及治療處理均有其特點,總結這些特點和規律將對地震傷膝關節損傷患者的處理產生積極作用。Abstract: Objective: To investigate the knee joint injury mechanisms, types and treatment of the earthquake wounded. Methods: Analysis the characteristics of the 2728 cases of West China Hospital from 5.12 Wenchuan earthquake wound, screen out the cases of knee joint injury. Results: Patellar fracture (42.15%),tibial plateau fracture(21.05%), femoral condyle fracture (13.16%), were the top three of knee joint injuries, which have a great relationship with falling down and (or) injured by collapsed houses when people were running in the earthquake. Conclusion: After the earthquake the knee joint damages its disease incidence rate, is injured the mechanism, the damage type, the merge wound situation and treatment processing has its characteristic, will summarize these characteristics and the rule damages patient’s processing to the earthquake wound knee joint to have the positive role.
OBJECTIVE: Extension stiffness of knee joint is always treated by the quadricepsplasty, but the main deficiency of this method is that patient feels weakness of lower limb and easily kneels down. The aim of this article is to explore the method to resolve the complications after quadricepsplasty. METHODS: Since 1978 to 1997, on the basis of traditional procedures of quadricepsplasty, sartorius muscle was used to reinforce the extension of knee joint. The lower 2/3 of sartorius muscle was fully dissociated only with its insertion intact. A tendon-periosteal-bone flap, about 2 cm in width, was managed on the anterior surface of patella, with its pedicle on the medial edge of patella. The tendon-periosteal-bone flap was used to fix the dissociated sartorious into patella to reinforce the extension of knee joint. The very lower part of sartorius was mainly aponeurosis, with the help of an aponeurosis bundle of iliotibial tract, it was fixed into the insertion of patellar ligament, through a bony tunnel chiseled adjacent to the insertion of patellar ligament. By now the movement of knee joint extension was strengthened by the transferred sartorius muscle. Postoperatively, every patient was required to extend and flex knee joint actively and/or passively. Altogether 12 patients were treated, 9 of them were followed up with an average of 14 months. RESULTS: The average movement was increased from 15 degrees to 102 degrees, and the average myodynamia was improved from grade II to grade IV. CONCLUSION: Traditional quadricepsplasty co-operated with transfer of sartorius muscle can strengthen the myodynamia of knee joint extension. It is simple method and can really achieve good function.
Objective To analyze the correlation between the morphology of tibial intercondylar eminence and non-contact anterior cruciate ligament (ACL) injury, and provide a theoretical basis for the prevention and risk identification of ACL injury. Methods A retrospective analysis was conducted on the knee radiographs of 401 patients admitted to the Chengdu Second People’s Hospital between January 2017 and October 2021, including 219 males and 182 females. Non-contact rupture of ACL was observed in 180 patients and confirmed by arthroscopy or surgery, while the remained 221 patients were confirmed to have normal ACL by physical examination and MRI. The heights of medial and lateral tibial intercondylar eminence and the width of tibial intercondylar eminence of the 401 patients were measured, and the risk factors of ACL injury were analyzed. Results The height of medial tibial intercondylar eminence was lower and the width of tibial intercondylar eminence was smaller in male patients with ACL fracture than those in the male control group with statistical significance (P<0.05). Logistic regression analysis showed that a narrow width of tibial intercondylar eminence was a risk factor of ACL injury in males (P<0.05). The receiver operating characteristic (ROC) curve showed that the diagnostic threshold was 11.40 mm, the area under the curve (AUC) was 0.851 [95% confidence interval (CI) (0.797, 0.896)], the sensitivity was 72.81%, and the specificity was 84.76%. The height of medial tibial intercondylar eminence was lower and the width of tibial intercondylar eminence was smaller in female patients than those in the female control group with statistical significance (P<0.05). Logistic regression analysis showed that both a low height of medial tibial intercondylar eminence and a narrow width of tibial intercondylar eminence were risk factors of ACL injury in females (P<0.05). For the width of medial tibial intercondylar eminence, the ROC curve showed that the diagnostic threshold was 8.30 mm, and the AUC was 0.684 [95%CI (0.611, 0.751)], the sensitivity and specificity were 63.64% and 72.41%, respectively; for the height of medial tibial intercondylar eminence, the diagnostic threshold was 11.30 mm, and the AUC was 0.699 [95%CI (0.627, 0.756)], the sensitivity was 89.39%, and the specificity was 47.41%. Conclusions The reduced width of tibial intercondylar eminence is a risk factor and effective predictor of non-contact ACL injury in males. Both the reduced height of the medial tibial intercondylar eminence and the reduced width of tibial intercondylar eminence are risk factors and may be predictors for non-contact ACL injury in females.
Objective To evaluate the surgical skill, cause of revision, compl ications, prosthetic survival and postoperative function in revision of custom-made tumor prosthesis replacement of knee joint. Methods The cl inical data of 33 patients who received prosthetic revision surgery between June 2002 and June 2007 were reviewed. There were 17 malesand 16 females with an average age of 33.1 years (range, 16-67 years). The pathological diagnosis included 17 osteosarcomas, 11 giant cell tumors, 2 mal ignant fibrous histocytomas, 1 chondrosarcoma, 1 synovial sarcoma, and 1 l iposarcoma. The involved locations were distal femur in 22 cases and proximal tibia in 11 cases. The average interval between first prosthetic replacement and revision surgery was 45.3 months (range, 6-180 months). The reason for revision included local recurrence in 2 cases, deep infection in 8 cases, aseptic loosening in 7 cases, peri prosthetic fracture in 1 case, prosthetic stem fracture in 6 cases, and prosthetic hinge failure in 9 cases. Six patients with deep infection received two-stage revision surgery, while the other 27 patients received one-stage revision. Cemented prostheses were used in all patients. Allograft prosthetic composite and revisions were used in 2 patients who had deficit of diaphysis for stem fixation. Results In 17 patients who received both primary prosthetic replacement and revision, the operative time was (149.8 ± 40.5) minutes and (189.9 ± 43.8) minutes, and the blood loss was (605.2 ± 308.0) mL and (834.1 ± 429.9) mL for primary prosthetic replacement and revision, respectively; all showing statistically significant differences (P lt; 0.05). The mean time of follow-up was 45.1 months (range, 12-76 months). Heal ing between allograft and host bone was obtained in 2 patients with allograft prosthetic composite and revision after 1.5 years and 2 years, respectively. After revision surgery, 3 patients died of lung metastasis after 12-24 months, and other 3 patients havinglung metastasis were al ive with disease. Nine (30%) compl ications occurred in 30 patients who were al ive at last follow-up. The compl ications included wound infection in 2 patients, deep infection in 5 patients, mechanical problems in 2 patients. Prosthetic failure occurred in 7 patients (23.3%). The 5-year survival rate of revised prosthesis was 68.6%. The Musculoskeletal Tumor Society (MSTS) score at 6 months after revision (73.6% ± 14.4%) was significantly improved (P lt; 0.01) when compared with before revision (57.1% ± 10.6%). Conclusion The main reasons for revision of custom-made tumor prosthesis of knee joint were mechanical problems and deep infection. Although revision surgery of knee is relatively compl icated and has some compl ications, a functional l imb could be maintained in most tumor patients.
摘要:目的:探討關節鏡微創手術對膝關節色素沉著絨毛結節性滑膜炎的診斷和治療價值。方法:本組12例,男7例,女5例,年齡18～46歲,平均33歲;病史2～60個月,平均16個月;其中左膝8例,右膝4例;初次就診11例,外院開放手術后復發1例。所有病例術前均行MRI檢查,并行關節鏡檢,滑膜切除,記錄該病在關節鏡下的表現形式(局灶型或彌漫型),樣本全部送病理檢查。術后加壓包扎、局部冰敷并按計劃功能鍛煉,術后3～4周行患膝放射治療。結果:本組12例,其中局灶性病例8例,彌漫性4例,術后病理檢查確診;所有病例獲得了3~21個月,平均13個月隨訪,未見復發;術前Lysholm評分(62.3±2.4)分;國際膝關節評分委員會(IKDC)膝關節功能主觀評分(56.4±31)分;術后3月復查Lysholm評分(82.5±3.2)分;IKDC主觀評分(85.3±2.5)分。除1例開放手術后復發病例術后3月膝關節屈曲受限(80°)外,其余患者功能良好。結論:關節鏡手術創傷小,顯露充分,病灶切除徹底,術后功能恢復理想,輔以放射治療可有效降低復發率,對膝關節色素沉著絨毛結節性滑膜炎具有較高的診治價值。Abstract: Objective: To evaluate the role of arthroscopy in the diagnosis and treatment in knee joint pigmented villonodular synovitis. Methods: 12 cases of knee joint pigmented villonodular synovitis with the age of 18 to 46 years old were treated with arthroscopical synovectomy with a combined application of postoperative exercise and radiotherapy. The history of disease was 2 to 60 months, with the mean of 16 months. The clinical data were reviewed when followedup and evaluated by Lysholm score and and IKDC score. Results: 12 patients diagnosed by pathologic examination,including 8 localized and 4 diffused, were followed up for 3 to 21 months(13 months on average)with no relapses at the time of followup. Lysholm score was (62.3±2.4)points preoperatively, but (82.5±3.2) points 3 months later.The International Knee Documentation Committee (IKDC) score was (56.4±3.1) and (85.3±2.5) respectively before surgery and 3 months later. All patient remained good functions of knee joints except one who relapsed after open operation. Conclusion:In case of pigmented villonodular synovitis of the knee joint, arthroscopical synovectomy combined with postoperative radiotherapy and physical exercise is an effective treatment with less invasion and better function than open operation.
Objective To investigate the effect of knee suspension during titanium plate fixation on postoperative posterior tibial slope (PTS) in knee osteoarthritis (KOA) with medial opening-wedge high tibial osteotomy (OWHTO). Methods The clinical data of 47 patients with KOA treated by OWHTO between January 2019 and December 2020 was retrospectively analyzed. In 24 cases, the knee joint was suspended when titanium plate was fixed (research group), and in 23 cases, the knee joint was naturally straightened when titanium plate was fixed (control group). There was no significant difference in gender, age, side, body mass index, disease duration, preoperative visual analogue scale (VAS) score, American Hospital for Special Surgery (HSS) score, Western Ontario and McMaster University Osteoarthritis Index (WOMAC) score, Lysholm score, and preoperative PTS between the two groups (P>0.05). PTS were measured at 1 day after operation and last follow-up, and were compared with that before operation. Before operation and at last follow-up, VAS score was used to evaluate the knee pain, HSS score, WOMAC score, and Lysholm score were used to evaluate the knee function. Results The patients in both groups were followed up 13-24 months, with an average of 19.9 months. There was no complication such as incision infection, screw fracture, and deep venous thrombosis of lower limbs in two groups. At last follow-up, the VAS score, HSS score, WOMAC score, and Lysholm score in two groups were significantly improved when compared with those before operation (P<0.05), but there was no significant difference between the two groups in the each score difference of before and after operation (P>0.05). There was no significant difference in PTS at each time point before and after operation in the research group (P>0.05), but PTS in the control group significantly increased at 1 day after operation and last follow-up (P<0.05). PTS of the research group at 1 day after operation and last follow-up were significantly lower than those of the control group (P<0.05). ConclusionOWHTO can effectively relieve knee pain and improve knee function in KOA, and the increase of postoperative PTS can be effectively avoided by suspending knee joint.
ObjectiveTo explore the correlation between the degree of bone marrow edema (BME) and the content change of tumor necrosis factor α (TNF-α) and matrix metalloproteinase 3 (MMP-3) and the knee pain symptoms in patients with bone contusion around the knee joint. MethodsThirty patients (30 knees) of bone contusion around the knee joint were chosen as the trial group between October 2009 and April 2012. According to visual analogue scale (VAS), 30 patients were divided into mild group (10 cases), moderate group (10 cases), and severe group (10 cases); according to MRI morphological changes, the patients were divided into type I group (12 cases), type Ⅱ group (11 cases), and type Ⅲ group (7 cases). Ten patients (10 knees) with soft tissue injury of the knee were chosen as control group. No significant difference was found (P>0.05) in gender, age, causes, side, and admission time after injury between 2 groups. The serum contents of MMP-3 and TNF-α were detected and statistically analysed between different degrees of pain groups and between different degrees of BME groups. Correlation was analysed between BME and inflammatory factor changes and VAS score. ResultsThe MMP-3 and TNF-α contents in trial group[(29.580±6.870) μg/L and (23.750±7.096) ng/L] were significantly higher than those in control group[(8.219±1.355) μg/L and (6.485±1.168) ng/L](t=9.686, P=0.000; t=7.596, P=0.000). The MMP-3 and TNF-α contents in patients with different degrees of pain and BME were significantly higher than those in patients of control group (P<0.05), and significant difference was found between patients with different degrees of pain (P<0.05), but no significant difference between patients with different degrees of BME (P>0.05). Multiple linear regression analysis showed that TNF-α content was significantly correlated with VAS score (P=0.000). ConclusionKnee pain symptoms are not related to the degree of BME in patients with bone contusion around the knee joint. Inflammatory factor TNF-α content is the main influence factor of knee joint pain symptoms.
ObjectiveTo investigate the mid-term effectiveness of three‐dimensional (3D) printed osteotomy guide plate and personalized prosthesis in knee‐preserving tumor resection. Methods The clinical data of 12 patients who underwent knee‐preserving tumor resection and reconstruction with 3D printed osteotomy guide plate and personalized prosthesis between September 2016 and October 2018 were retrospectively analyzed. There were 7 males and 5 females. The age ranged from 7 to 59 years, with a median of 44.5 years. There were 11 cases of osteosarcoma and 1 case of fibrosarcoma, all of which were Enneking grade ⅡB. The distance from the tumor to the joint surface was 5.5-8.2 cm, with an average of 6.94 cm. Incision healing, tumor recurrence, periprosthetic fracture, and aseptic loosening were observed after operation. The Musculoskeletal Tumor Society (MSTS) scoring system was used to evaluate the function of the patients, and the knee flexion range of motion was measured. ResultsThe 12 patients were followed up 41-66 months, with an average of 54.5 months. The length of osteotomy ranged from 14 to 26 cm, with an average of 22.08 cm. Except for 2 patients with superficial infection of incision tissue, no deep infection involving the prosthesis occurred, no patient underwent revision surgery because of prosthesis infection. During the follow-up, local recurrence occurred in 2 cases and distant metastasis occurred in 3 cases. The overall disease-free survival rate was 58.3%. Two patients died of lung metastasis, and the overall survival rate was 83.3%. One patient underwent amputation due to local recurrence, and 1 patient underwent total knee arthroplasty due to prosthesis rupture. No aseptic loosening of the prosthesis and periprosthetic fracture occurred during the follow-up, and the overall prosthesis survival rate was 83.3%. At last follow-up, 10 patients obtained satisfactory knee flexion range of motion that ranged from 95° to 125°, with an average of 110°. Two children could not cooperate with early rehabilitation treatment due to pain, and the knee flexion range of motion was not ideal (50°, 75°). All patients achieved acceptable lower limb function with MSTS scores ranged from 26 to 30, with an average of 28. All patients walked without crutches. ConclusionThe treatment of malignant bone tumors around the knee joint with 3D printed osteotomy guide plate and personalized prosthesis can preserve the articular surface, obtain good limb function, reduce the risk of aseptic loosening of prosthesis, and achieve better mid-term effectiveness.
Objective To summarize the effectiveness of Ilizarov technique in the correction of flexion contracture deformity of the knee after burn. Methods Between April 2012 and July 2017, Ilizarov technique was used to treat 14 cases (17 knees) of knee flexion contracture patients. There were 11 males (13 knees) and 3 females (4 knees), with an age of 20-48 years (mean, 37 years). The duration of scar formation was 8 months to 24 years (mean, 5 years). The scar ranged from the upper part of the thigh, down to the middle part of the leg, from both sides to the inside and outside of the popliteal fossa, without ulceration. The area after scar contracture was 12 cm×10 cm to 30 cm×22 cm. Preoperative total activity of motion (TAM) was 30-115° (mean, 69°). There were 4 cases in wheelchair, 5 cases walking with double crutches, 3 cases with limp, and 2 cases with half squat walking. According to the knee function evaluation criteria by QIN Sihe, the preoperative knee function was fair in 3 knees, poor in 5 knees, and very poor in 9 knees. Results All patients were followed up 6 months to 5 years (mean, 2 years). No local skin necrosis, needle tract infection, limb numbness, and other complications occurred. Knee flexion deformities were all corrected. The postoperative TAM was 70-145° (mean, 125°). All patients were able to walk with plantar weight-bearing, and their gait improved when compared with that before operation. Five cases could walk without a crutch and only slightly claudication after operation. At last follow-up, according to the knee function evaluation criteria, the results were excellent in 9 knees, good in 5 knees, and fair in 3 knees, all were significantly improved when compared with that before operation (Z=–3.677,P=0.000). Conclusion Ilizarov technique has the advantages of minimally invasive, safe, and easy to operate for the treatment of flexion contracture deformity of the knee after burn.
Objective To investigate the effectiveness of free latissimus dorsi myocutaneous flap transplantation combined with external fixation in the treatment of bone and soft tissue defects around the knee joint. Methods A retrospective analysis was conducted on the clinical data of 13 patients with high-energy trauma-induced bone and soft tissue defects around the knee joint admitted between January 2016 and July 2023. Among them, 11 were male and 2 were female, the age ranged from 23 to 61 years, with an average of 35.7 years. The causes of injury included 10 cases of traffic accident, 2 cases of machine entanglement injury, and 1 case of heavy object crush injury. According to the Gustilo-Anderson classification, 11 cases were type Ⅲ B and 2 cases were type Ⅲ C. Post-injury, 2 cases had wound infection and 2 cases had popliteal artery injury. The time from injury to flap repair was 40-49 days, with an average of 27.5 days. The wound size was 18 cm×13 cm to 32 cm×20 cm, all accompanied by distal femoral bone defects and quadriceps muscle defects. After primary debridement, vacuum sealing drainage combined with external fixation was used for treatment. In the second stage, free latissimus dorsi myocutaneous flaps were transplanted to repair soft tissue defects, with the flap size ranging from 20 cm×15 cm to 34 cm×22 cm. The donor sites of 9 flaps were directly sutured, and 4 cases with large tension were repaired with a keystone flap based on the posterior intercostal artery perforator. At 6-15 months postoperatively, with an average of 10.5 months, 11 patients underwent knee arthrodesis surgery; 2 patients with large bone defects at the distal femur and proximal tibia underwent multi-segment bone transport reconstruction of the bone defect. At last follow-up, the recovery of the flap and the donor site was recorded, and the function of the shoulder joint was evaluated by the American Shoulder and Elbow Surgeons (ASES) score, and the function of the affected knee joint was evaluated by the Knee Society Score (KSS). ResultsAll the flaps survived after operation, the wounds and donor site incisions healed by first intention. All 13 patients were followed up 15-55 months, with an average of 21.6 months. Four patients who underwent the restoration of the donor site with the thoracodorsal keystone perforator flap had obvious scar hyperplasia around the wound, but no contracture or symmetrical breasts on both sides. At last follow-up, the appearance and texture of the flaps were good; the bony fusion of the knee joint was good, and the range of motion and function recovered well; the shoulder joint function on the flap-harvested side was not significantly affected, and the range of motion was satisfactory. The ASES shoulder joint score of the latissimus dorsi muscle-harvested side was 85-95, with an average of 89.5. The knee joint function KSS score was 75-90, with an average of 81.2. ConclusionFree latissimus dorsi myocutaneous flap transplantation combined with external fixation for the treatment of bone and soft tissue defects around the knee joint caused by high-energy trauma can repair bone and soft tissue defects and reconstruct the stability of the knee joint, effectively preserve the integrity of the limb and soft tissues, and improve the patient’s ability of self-care.