Objective To investigate the method and effectiveness of vacuum seal ing drainage (VSD) combined with debridement for treatment of deep infection after hip or knee replacement. Methods Between September 2006 and May 2010, 13 cases of deep infection after joint replacement surgery were treated, including 5 males and 8 females with an average ageof 62.5 years (range, 56-78 years). Infection occurred at 7 days to 1 year and 2 months (median, 14 days) after joint replacement surgery. The time from infection to admission was 8 days to 4 years and 6 months (median, 21 days). Purulent secretion with or without blood were observed in all patients; sinus formed in 5 cases; and unhealing of incision or drainage opening disunion were observed in 8 cases. The size of skin defect at secretion drainage or sinus opening site was 5 mm × 3 mm to 36 mm × 6 mm; the depth of drainage tunnel or sinus was 21-60 mm. The histopathological examination in 11 patients showed acute infection or chronic infection with acute onset in 10 cases, and tuberculosis in 1 case. In 6 cases of secretion culture, Staphylococcus aureus was isolated from 5 cases. After thorough debridement, wound irrigation was performed during the day and VSD during the night in 10 cases. VSD was merely performed in 3 cases. Results In 1 case after revision total hip arthroplasty, the wound bled profusely with VSD, then VSD stopped and associated with compression bandage, VSD proceeded again 3 days later with no heavy bleeding. All the patient were followed up 1 year to 4 years and 5 months (mean, 2 years and 11 months). Infection were controlled 7-75 days (mean, 43 days) after VSD in 10 cases. In these cases, prosthesis were reserved, no recurrent infection was observed, wound were healed, limb function were reserved. VSD was refused in 1 case because of hypersensitive of the pain at the vacuum site, infection control was failed and amputation at the thigh was proceeded. The effect was not evident in 1 case with tuberculosis infection, then the prosthesis was removed and arthrodesis was proceeded followed by complete union. In 1 case, infection was cured with VSD, recurrent infection happened after 9 months, antibiotic-impregnated cement spacer was used at end, and no recurrence was observed 1 year and 4 months later. Conclusion VSD combined with debridement can drainage deep infection sufficiently, promote wound healing, reduce recurrent infection rate, maximize the possibil ity of prosthesis preservation.
ObjectiveTo summarize the perioperative blood management strategies for joint arthroplasty. MethodsThe literature concerning preoperative, intraoperative, and postoperative blood management was reviewed and summarized. ResultsAt present, a variety of blood management and conservation strategies are available. Preoperative strategies include iron supplementation, erythropoietin (EPO), and preoperative autologous donation (PAD). Intraoperative options include acute normovolemic hemodilution (ANH), antifibrinolytics, and the use of a tourniquet. Postoperative strategies include the use of reinfusion systems and guided transfusion protocols. Preoperatively, administration of either simple EPO or a combination of EPO and PAD can be efficacious in anemic patients. Intraoperatively, tourniquet use and tranexamic acid can effectively control bleeding. Postoperatively, appropriate transfusion indications can avoid unnecessary blood transfusions. ConclusionPerioperative blood management strategies for joint arthroplasty should be integrated for the individual patient using a variety of ways to reduce perioperative blood loss and blood transfusion, and promote the rehabilitation of patients.
Objective To explore the clinical application of the postanesthetic autologus donation and the post-operative transfusion during the knee and hipreplacement surgeries. Methods Thirty-three patients (17 males,16 females) admitted for the elective joint replacement surgeries from September 2004 to January 2005 were included in this study. Of the 33 patients, 5 were diagnosed with rheumatoid arthritis, 23 with femoral head necrosis, and 5 with knee osteoarthritis. Immediately after anesthesia, 400 ml of the blood was drawn and transfused after the surgery. The blood pressure was monitored during the blood drawing, postoperative blood parameters were recorded, surgical site drainage and signs of infections were observed, and the other clinical data were collected.Results Of the 33 patients, 27 only received autologoustransfusion, including 21 patients who underwent the unilateral hip replacement and 6 patients who underwent the unilateral knee replacement. All these 6 patients with the unilateral knee replacement received the blood drained from the surgical sites in addition to the blood obtained from the postanesthetic autologous donation. Another 6 cases with the bilateral hip and knee replacement received the blood drained from the surgical sites, the blood obtained from the post-anesthetic autologous donation and 400 ml of the allogeneic blood transfusion. The blood received postoperatively averaged 650 ml (range, 200-1 150 ml), haemoglobin(Hb) was averaged 88 g/L (68-102 g/L), and Hct was averaged 24.6% (20.5% 31.5%). Hb and Hct were lower after operation than before operation(Plt;0.01). Conclusion Postoperative blood transfusion following the postanesthetic and preoperative autologous donation can be successfully applied to most of the patients undergoing theknee or hip replacement so as to reduce complications of the allogeneic blood transfusion.
Objective To discuss shortterm effect of rotating hinge knee prosthesis. Methods From July 2002 to April 2005, 17 cases of severe knee joint deformity and instability received rotating hinge knee prosthesis for total knee arthroplasty. There were 8 males and 9 females, aging from 41 to 79 years. The left joints were involved in 10 cases and right joint in 7 cases. All patients were admitted because of pain. The course of disease was from 1 to 7 years. There were 10 cases of osteoarthritis，5 cases of rheumatoid arthritis，1 case of traumatic arthritis after operation of left femur fracture，and 1 case of traumatic arthritis with injury of anterior cruciate ligament, meniscus medialis and medial collateral ligament after operation of left fracture of tibial plateau. According to HSS(hospital for special surgery) scoring system，the preoperative score was 36 to 58 with an average of 48.6. The preoperative flexed motion range of articulation was 21° to 80° with an average of 57.4°. Results All patients were followed up from 7 months to 3 years with an average of 23.6 months. There were no complications of thrombogenesis of veins of lower extremity, pulmonary embolism, palsy of peroneal nerve, fracture, and breakage of extended knee structure. Infection occurred in 1 case at 3 months postoperatively，the prosthesis was dislodged，antibiotic-impregnated cement was filed with knee joint，twostage arthroplasty was expected. At the last follow-up,the HSS score was 78 to 98 with an average of 91.1 in 16 patients. The flexed motion range of articulation was 75° to 100° with an average of 852° at 2 weeks postoperatively. The flexed motionrange of articular was 85° to 123° with an average of 1083° at the last followup. There were significant differences in HSS score and motion range of articular between preoperation and thelast follow-up (P＜0.05). Conclusion The short-term outcome of rotating hinge knee prosthesis is good and a long term followup is necessary.
ObjectiveTo investigate the effect of different use time of intermittent pneumatic compression (IPC) on the incidence of deep vein thrombosis (DVT) of lower extremities after arthroplasty.MethodsBetween October 2018 and February 2019, 94 patients who planned to undergo unilateral total hip or knee arthroplsty and met the selection criteria were randomly divided into a control group (47 cases) and a trial group (47 cases). There was no significant difference in gender, age, surgical site, and surgical reason between the two groups (P>0.05). After returning to the ward, all patients were treated with IPC. And the IPC was used until 9:00 pm on the day after operation in the trial group and until 8:00 am the next day after operation in the control group. The levels of hemoglobin, platelet count, D-dimer, hospital stay, treatment costs, patients’ satisfaction with IPC, the parameters of thromboelastrography [kinetics (K value), freezing angle (α angle), reaction time (R value), maximum amplitude (MA value)], visual analogue scale (VAS) score, circumference difference of calf before and after operation, Pittsburgh sleep assessment score, and the incidence of DVT of lower limbs were recorded and compared between the two groups.ResultsThe K value and D-dimer before operation were significant different between the two groups (P<0.05). There was no significant difference in pre- and post-operative hemoglobin, platelet count, and the other parameters of thromboelastography between the two groups (P>0.05). There was no significant difference in pre- and post-operative VAS scores and post-operative circumference difference of calf between the two groups (P>0.05). The sleep assessment score of the trial group at 1 day after operation was significant lower than that of the control group (t=2.107, P=0.038). There was no significant difference in the hospital stay and treatment costs between the two groups (P>0.05). There was 1 case (2.1%) of DVT, 3 cases (6.4%) of intermuscular venous thrombosis, and 1 case (2.1%) of infection in the trial group, and 2 cases (4.3%), 4 cases (8.5%), and 0 (0) in the control group. The differences were not significant (P>0.05). After the completion of postoperative IPC treatment, the satisfaction rates of using IPC were 89.4%(42/47) in the trial group and 70.2% (33/47) in the control group, and the difference was not significant (χ2=0.097, P=0.104).ConclusionIPC using for a short period of time after arthroplasty do not increase the degrees of the pain and the swelling of calf; it can effectively prevent DVT of the lower extremity, improve the quality of sleep in patients, and is good for the limbs rehabilitation.
Objective To investigate the short-term effectiveness of Swanson artificial joint replacement in treating post-traumatic metacarpophalangeal joint stiffness. Methods Between August 2007 and May 2010, 11 cases (13 fingers) of metacarpophalangeal joint stiffness with soft tissue defects underwent Swanson artificial joint replacement. There were 7 males (9 fingers) and 4 females (4 fingers), aged 43 to 65 years with an average of 49 years. The involved fingers included 4 thumbs, 4 index fingers, 3 middle fingers, and 2 ring fingers. The types of injury included open and crush injury in 8 fingers, fracture of the metacarpophalangeal joint in 3 fingers, metacarpophalangeal joint severing in 2 fingers. The time from joint stiffness to hospitalization was 12 to 48 weeks (mean, 24 weeks). The joint activity was (136.82 ± 28.96)°. According to total active motion (TAM) assessment, included good in 1 finger, fair in 6 fingers, and poor in 6 fingers before operation. The activities of daily living were assessed by Sollerman score, which was 45.64 ± 11.04. The X-ray films and CT scan showed traumatic arthritis of the metacarpophalangeal joint. Results The incision healed by first intention. All patients were followed up 12 to 34 months (mean, 24.1 months). At last follow-up, the joint activity was (194.64 ± 28.86)°, showing significant difference when compared with preoperative value (t=25.214, P=0.000). According to TAM assessment, including excellent in 1 finger, good in 4 fingers, fair in 7 fingers, and poor in 1 finger. The Sollerman score was 67.45 ± 8.20 postoperatively, showing significant difference when compared with the preoperative score (t=10.470, P=0.000). X-ray examination showed no prosthesis fracture, periprosthetic fracture, or joint dislocation occurred at last follow-up. Conclusion Swanson artificial joint replacement can be appl ied to treat posttraumatic metacarpophalangeal joint stiffness, which can improve the joint activity and has satisfactory short-term effectiveness.
In order to evaluate the long-term effect of total hip replacement (THR) in patients with steroid-induced femoral head necrosis, 40 cases of 50 hips received THR patients were followed up for an average of 8.5 years after operation. Evaluation was carried act according to Harris score system. In these cases, average score was seventy-five points. Revision rate among them was 2% after four years and 18% after five to eight and a half years, with as overall rate of 20%. It was found that the main reason for revision was looseness of the prosthesis. In this follow-up, it showed that besides foreigen body reaction, abnormal osseous remodelling was the main factor in long-term failure of this arthroplasty. It was also proved that it was a good selection to perform cemented total hip replacement in younger patients, which could improve living quality.
ObjectiveTo summarize the research progress in artificial metacarpophalangeal joint and interphalangeal joint prostheses.MethodsThe research literature on artificial metacarpophalangeal joint and interphalangeal joint prostheses at home and abroad was reviewed and summarized from anatomy, prosthesis design, and material development.ResultsThe artificial joint replacement can correct deformity, relieve pain, and improve function immediately. In the past 50 years, many researches have focused on the design and material of prostheses and surgical technique of joint replacement. There are three types of prostheses, including hinged limit-type-prosthesis, semi-limit-type-prosthesis, and non-limit-type-prosthesis. The prostheses have their own advantages and disadvantages, the long-term effectiveness of joint replacement is not ideal.ConclusionThe metacarpophalangeal joint and interphalangeal joint prostheses with more anatomical structure and biocompatible materials are needed.