Real-time updates of metrical data can not generally be realized in the commonly used methods for calculating the pulse wave of blood oxygen saturation. Based on the hardware platform of pulse wave signal from NJL5501R, and high linear correlation of the red laser and infrared light collected in pulse wave signal measurement, an approach to determine the value of the blood oxygen saturation is proposed in the present paper by establishing the linear regression model of the red laser and infrared light. The effect of the sampling number of pulse wave signal in calculation on the characteristic parameters of pulse wave is also analyzed. The experimental results showed that the approach could guarantee the measuring accuracy and realize the fast updates of blood oxygen saturation data. This paper provides an effective method for real-time and accurate monitoring of pulse blood oxygen saturation in human body.
ObjectiveTo explore the causes and management of the complications in diabetic foot treated with tibial transverse transport (TTT). MethodsBetween September 2015 and September 2019, 196 patients with diabetic foot were treated with TTT. There were 109 males and 87 females, with an average age of 67.6 years (range, 45-86 years). According to Wagner’s classification, there were 124 cases of grade 3, 62 cases of grade 4, and 10 cases of grade 5; the course of disease was 1-12 months, with an average of 2.6 months. All patients underwent the minimally invasive tibial osteotomy. The osteotomy site was the middle and lower tibia in 62 cases and the middle and upper tibia in 134 cases. The area of osteotomy was 20 cm2 in 83 cases and 7.5 cm2 in 113 cases. The osteotomy block was moved back and forth once in 92 cases and twice in 104 cases. The complications were recorded, including secondary fracture at tibial osteotomy, skin necrosis in osteotomy area, and pin tract infection. ResultsAmong 196 patients, 41 cases (20.9%) had complications. Nine cases (4.6%) had secondary fracture at tibial osteotomy, among which 6 cases (9.6%) of middle and lower segment osteotomies and 3 cases (2.2%) of middle and upper segment osteotomies. The incidence between the patients with different osteotomy sites was significant (χ2=5.354, P=0.021). The area of osteotomy was 20 cm2 in 5 cases (6.0%) and 7.5 cm2 in 4 cases (3.5%). There was no significant difference in the incidence between patients with different areas (χ2=0.457, P=0.499). Skin necrosis occurred in the osteotomy area in 12 cases (6.1%), all of which were moved back and forth once. There was a significant difference in the incidence between patients who were treated with transport once and twice (P=0.001). There were 18 cases (9.1%) with pin tract infection, including 12 cases (6.1%) with mild infection and 6 cases (3.0%) with severe infection. There was no significant difference in the incidence between the patients with mild and severe infections (P=0.107).ConclusionTTT is an effective method to treat diabetic foot, but there are complications such as secondary fracture at tibial osteotomy, skin necrosis in osteotomy area, and pin tract infection during transport. Preoperative evaluation of indication, standardization of osteotomy mode, size and position of osteotomy block, establishment of individualized removal plan, and strengthening of pin track nursing after operation can effectively reduce complications.
目的 比较克氏针张力带与锁骨钩钢板治疗RockwoodⅢ型肩锁关节脱位的临床疗效。 方法 1999年1月－2007年3月，收治肩锁关节脱位患者29例，分别采用克氏针张力带联合喙锁韧带重建（克氏针组10例）和锁骨钩钢板（钢板组19例）治疗。其中男18例，女11例；年龄19～50岁，平均38.2岁。患者均为新鲜RockwoodⅢ型肩锁关节脱位，受伤至手术时间1～16 d，平均3 d。两组患者性别、年龄、受伤至手术时间等一般资料比较差异无统计学意义（P＞0.05）。进行两组患者术后临床及影像学评估比较。 结果 25例患者（克氏针组10例，钢板组15例）获随访，随访时间2～12年，平均6年。术后克氏针组发生克氏针弯曲5例、断裂1例；钢板组切口浅表感染2例，经换药后治愈，其余患者切口Ⅰ期愈合。两组患者肩锁关节均获得良好功能，组间比较差异无统计学意义（P＞0.05）。影像学方面：与克氏针组相比，在患肢负重位时钢板组喙锁间隙间距增加了23%（P＜0.05），非负重位两组间距差异无统计学意义（P＞0.05）。术后8～12周出现喙锁韧带钙化，钢板组12例、克氏针组2例（P＜0.05）。术后6个月出现肩锁关节骨性关节炎，钢板组2例、克氏针组1例（P＞0.05）。肩关节功能与影像学结果无相关性（r=0.096，P＞0.05）。 结论 克氏针张力带联合喙锁韧带重建和锁骨钩钢板固定治疗RockwoodⅢ型肩锁关节脱位均可获得良好的临床功能。与克氏针张力带相比，锁骨钩钢板固定具有手术操作简便、疗效确切、并发症少、能够早期康复锻炼等优点。
目的 探讨空心拉力螺钉联合钢丝张力带治疗髌骨骨折的临床疗效。 方法 2005年6月－2010年9月采用空心拉力螺钉联合钢丝张力带治疗髌骨骨折38例，男29例，女9例；年龄32～69岁，平均42.2岁。其中髌骨中份横行骨折18例，斜行骨折15例，髌骨纵行骨折3例，髌骨下极骨折2例。骨折块移位0.6～3.2 cm，平均1.7 cm。受伤至手术时间1～7 d，平均2.1 d。末次随访时评估双侧膝关节主观感受、视觉模拟评分（VAS）、患侧膝关节活动度（ROM）、Lysholm评分及影像学变化。 结果 患者随访13～54个月，平均19.5个月。康复期内未出现皮肤刺痛、滑囊炎、切口延期愈合或不愈合等临床并发症。末次随访时疼痛VAS评分（1.5 ± 0.9）分，患侧膝ROM为健侧的85.2%。术后2.1～3.2个月，平均2.8个月达到临床骨性愈合。 患侧Lysholm评分优27例、良8例、可1例、差2例，优良率92.1%；健侧膝关节Lysholm评分优35例、良1例、可0例、差2例，两侧比较差异无统计学意义（P＞0.05）。 结论 空心拉力螺钉联合钢丝张力带治疗髌骨骨折可获得较好临床疗效，且术后循序渐进的康复锻炼是膝关节功能得到最大恢复的关键。
【摘要】 目的 总结应用经皮微创钢板固定（minimally invasive percutaneous plate osteosynthesis，MIPPO）技术治疗2型糖尿病患者胫骨远端骨折的临床经验及治疗效果。 方法 2007年5月-2010年11月，采用MIPPO技术治疗2型糖尿病合并胫骨远端骨折15例。其中男9例，女6例；年龄38~70岁，平均60岁。左侧胫骨远端骨折 4例，右侧 11例。单发骨折10例，多发骨折5例。根据 AO分型:A1型2例，A2型1例，A3型5例，B1型3例，B3型3例，C1型1例。伤后至手术时间为2~14 d。 结果 15例患者随访时间8~12个月，平均10个月。手术时间平均89 min，术中失血量平均285 mL。术后1年采用Johner-Wruhs方法评估疗效:优4例，良5例，中3例，差3例；总体满意率80%。X线片示13例患者骨折均获骨性愈合，愈合时间4~8个月，平均6个月，无再发骨折。3例发生泌尿系统感染，1例发生呼吸系统感染，感染率26.7%。 结论 MIPPO技术治疗2型糖尿病胫骨近端骨折具有对骨折周围软组织剥离少、符合生物学固定概念、内固定牢靠、切口较小等优点，降低了切开复位内固定术后并发症的发生率。【Abstract】 Objective To summarize the clinical experiences and effects of minimally invasive percutaneous plate osteosynthesis (MIPPO) technique for type 2 diabetic patients with fractures of distal tibia. Methods From May 2007 to November 2010, 15 type 2 diabetic patients with distal tibia fractures including 9 males and 6 females were treated with minimally invasive percutaneous plate osteosynthesis. Their age ranged from 38 to 70 years old averaging at 60. Left distal tibia fracture occurred to 4 cases, and right distal tibia fracture occurred to 11 cases. Ten patients had single fracture, and 5 had multiple fractures. According to AO fracture classification, there were two cases of A1, one cases of A2, five cases of A3, three cases of B1 and B3 respectively, and two cases of C1. The time from the occurrence of fracture to operation was ranged from 2 to 14 days. Results The patients were followed up for 8 to 12 months with an average period of ten months. The average operation time was 89 minutes and perioperative blood loss was (285±38) mL. Johner-Wruhs method was used to evaluate the efficacy. Four cases were excellent, 5 were good, 3 were fair, and 3 were poor, with an overall satisfaction rate of 80%. X-ray showed that 13 patients were healed. The healing time was 4 to 8 months, averaging 6 months, and no further fractures occurred. There were 3 cases of urinary tract infection and 1 case of respiratory infection with an infection rate of 26.7%. Conclusion Minimally invasive percutaneous plate osteosynthesis technique for fractures of distal tibia in diabetic patients is a safe method with better mechanical stability, less intervention of blood supply, less soft tissue complications and smaller incisions.
Objective To explore the clinical efficacy of external fixation combined with autogenous periosteal iliac bone for repairing cartilage injury of the talus. Methods The data of 18 patients with talus cartilage injury treated in Mianyang Central Hospital between January 2018 and January 2022 were retrospectively analyzed. All patients received autogenous periosteal iliac bone transplantation and external fixation brackets. The Visual Analogue Scale (VAS), joint range of motion, and the American Orthopedic Foot and Ankle Society (AOFAS) ankle posterior foot score were assessed before surgery and 6 months after surgery. The changes of cartilage damage of the talus on MRI before and after surgery were compared. The complications related to the operation were recorded. Results The patients included 5 males and 13 females, with an average age of (50.7±5.4) years. There were 6 cases injured on the left side and 12 cases injured on the right side. The Hepple’s classification was type Ⅲ in 8 cases and type Ⅳ in 10 cases. The average follow-up time was (17.6±8.2) months. The preoperative VAS score, ankle range of motion, and AOFAS score were 5.5±1.5, (48.0±10.5)°, and 54.9±11.1, respectively. Six months after surgery, the VAS score, ankle range of motion, and AOFAS score were 2.1±0.9, (64.8±7.8)°, and 82.6±8.7, respectively, and the differences from preoperative scores were all statistically significant (P<0.05). The preoperative MRI showed that the area of talus cartilage injury was (2.6±0.6) cm2, and the depth was (10.0±0.4) mm; the 1-year follow-up MRI showed that the area of talus cartilage injury was (0.6±0.2) cm2, and the depth was (5.5±0.3) mm, which statistically differed from those before surgery (P<0.05). By the last follow-up, no postoperative complications such as incision infection, bone graft fracture, and nonunion of the inner ankle were found. Conclusions Autogenous periosteal iliac bone graft can repair cartilage injury of the talus. External fixation stent provides early joint stability, avoiding uneven joint compression or joint impact.
Objective To systematically search for evidence related to the prevention and management of kinesiophobia in patients undergoing total knee arthroplasty at home and abroad, evaluate and integrate the evidence, and to provide reference for clinical nursing practice. Methods Domestic and international evidence-based resource databases, including UpToDate, BMJ (British Medical Journal) Best Practice, National Institute for Health and Clinical Excellence guidelines network, JBI (Joanna Briggs Institute) evidence-based healthcare center database, Cochrane Library, Registered Nurses’ Association of Ontario website, China guidelines network, Web of Science, PubMed, SinoMed, China National Knowledge Infrastructure, and Wanfang were searched. Evidence related to the prevention and management of kinesiophobia after total knee arthroplasty was collected, and the search period was until June 30, 2023. The evidence extraction and integration were conducted on the literature that meets the requirements. Results A total of 10 papers were ultimately included, including 1 guideline, 1 expert consensus, 2 systematic evaluations, 4 randomized controlled studies, and 2 cohort studies. A total of 17 pieces of evidence were extracted from 5 aspects, including risk assessment, health education, intraoperative pain management, rehabilitation exercise, and patient participation. Conclusion The prevention and management of kinesiphobia after total knee arthroplasty include evidence from multiple aspects, which can provide evidence-based basis for orthopedic and rehabilitation medical staff to develop intervention plans for kinesiphobia and promote rapid recovery of patients with total knee arthroplasty.
ObjectiveTo evaluate the long-term effectiveness of vascularized fibula flap in radiocarpal joint reconstruction following excision of Campanacci grade Ⅲ giant cell tumor (GCT) of distal radius.MethodsBetween December 2010 and December 2014, 10 patients with Campanacci grade Ⅲ GCT of distal radius were treated with en bloc excision and inradiocarpal joint reconstruction using vascularized fibula flap. They were 6 males and 4 females, with an average age of 39.9 years (range, 22-65 years). The disease duration was 1.5-6.0 months (mean, 2.6 months). The length of distal radius defect was 6.0-12.5 cm (mean, 8.4 cm) after en bloc excision of GCT. Vascularized fibula flap with inferior lateral genicular vessels were performed in 6 patients and with inferior lateral genicular vessels and peroneal vessels in 4 cases.ResultsAll incisions healed by first intention. All patients were followed up 4.4-8.3 years (mean, 6.0 years). There was no tumor recurrence during follow-up. At last follow-up, the mean ranges of motion of wrist joint were 55.0° (range, 25-85°) in extension, 26.5° (range, 15-40°) in flexion, 12.0° (range, 5-25°) in radial deviation, 19.6° (range, 10-30°) in ulnar deviation, 50.5° (range, 5-90°) in pronation, and 66.5° (range, 20-90°) in supination. The mean grip strength of effected wrist was 75% (range, 60%-85%) of the healthy wrist. The mean Musculoskeletal Tumor Society (MSTS) score was 82.7% (range, 75%-90%). X-ray films showed that the fibula flap healed at 12-16 weeks after operation (mean, 14.1 weeks) and there were 9 cases of radiological complications.ConclusionFor Campanacci grade Ⅲ GCT of distal radius, application of the vascularized fibula flap in radiocarpal joint reconstruction after en bloc excision of GCT can obtain good wrist function.
Objective To analyze clinical characteristics and treatment experience of 143 tibetan victims of China Yushu earthquake, so as to provide reference for emergency preparation for earthquake disasters. Methods A retrospective study from April 16th to April 22th, 2010 was designed. A total of 143 injured Tibetans (74 men, 69 women) of the magnitude 7.1 Yushu earthquake were included in this study. Data from victims was collected retrospectively as follows: age, gender, cause of injury, place and time of rescue, chief complaint, primary diagnosis, onsite treatment, transfer, psychological crisis intervention and so on. Results The 143 tibetan victims contained 67 fracture cases (4 open fracture, 63 closed fracture), 5 joint dislocation cases and 3 neural injury cases. 62 victims with fracture were treated by Tibetan-Chinese therapy combined with external fixation, 5 victims were operated with emergency surgery, 6 victims refused to the surgical debridement and suture, and no dead case reported. All patients were given 3 to 11 psychological intervention treatments. As to the aspect of the wounded transferring, 48 cases among 54 supposed evacuating victims were transferred to Xinin hospitals, and the other six refused to be transferred and kept staying in the original place for treatment. Conclusion The clinical characteristics of the tibetan victims are outstanding. The medical rescue for disaster in ethnic region should be appropriate for features of disaster areas.Both the individualized remedy and early psychological intervention are regarded as the important measures for improving the general level of earthquake medical rescue in ethnic regions.
ObjectiveTo summarize the injury characteristics and therapeutic strategy of patients injured in " 8·8” Jiuzhaigou earthquake.MethodsThe clinical data of 48 patients injured in " 8·8” Jiuzhaigou earthquake who were admitted to Mianyang Central Hospital were analyzed retrospectively. There were 25 males and 23 females with an average age of 36 years (range, 5-87 years). The average interval from injury to admission was 30 hours (range, 3-53 hours). The patients from Sichuan province accounted for 45.8% (22 cases), from other province for 52.1% (25 cases), and from abroad for 2.1% (1 case). Patients were primarily hurted by collapsing houses and flying stones. Thirty-seven patients (77.1%) had single injury, mainly involving 36 patients (75.0%) in limbs, and the other 11 patients (22.9%) had multiple injuries. Ten patients (20.8%) had open fractures, including 1 case rated as typeⅠ, 2 as typeⅡ, 3 as type Ⅲa, 2 as type Ⅲb, and 2 as type Ⅲc according to Gustilo classification criteria. The abbreviated injury scale (AIS) score was 2-3 in 37 patients of single injury, and the injury severity score (ISS) was 8-22 (mean, 13.2) in 11 patients of multiple injuries. Sixteen patients (33.3%) were diagnosed as mental disorders by Hamilton rating scale for anxiety (HAMA), including 8 cases had their anxiety scores≥29, 4 cases of 21-28, 3 cases of 14-20, and 1 case of 7-13. Of the 16 patients, 2 showed suicidal tendency.ResultsExcept 2 referrals, 30 patients received operation［28 patients (93.3%) for orthopaedic surgeries］and 16 patients received conservative treatment. The procedures included internal fixation, soft tissue debridement, external fixation, bipolar femoral head replacement, embolization of carotid cavernous sinus arteriovenous fistula, and amputation. Among the 46 patients treated in this hospital, 21 discharged from hospital at 2-12 days (mean, 6.7 days) after admission, the others received further rehabilitation in this hospital or local hospital. No undesirable consequence occurred in 16 patients with mental disorders. Five cases of infection occurred out of hospital were cured after debridement. No dead and nosocomial infection case reported.ConclusionIntensive treatment, specialist management, multidisciplinary team, and early intervention of nosocomial infection and deep venous thrombosis are the key to improve the general level of successful earthquake medical rescue.