OBJECTIVE To review the history and current status of total wrist arthroplasty. METHODS The original articles about wrist arthroplasty in recent years were reviewed. RESULTS The properties of wrist prosthesis of different generations were reviewed, with the emphasis on the prosthesis design and biomechanical behaviours. The surgical techniques, complications and salvage procedures were also discussed. CONCLUSION Although wrist arthrodesis is highly successful in treating the end-stage wrist arthritis, total wrist arthroplasty using well-designed prosthesis remains an alternative for the patients with special demands of hand functions.
Objective To investigate the relationship between the initial stabil ity and infected loosening of the total hip arthroplasty (THA) prosthesis. Methods From January 2000 to December 2008, 110 cases (110 hips) were treated with THA revision. Among them, 15 cases (15 hips) were confirmed infected loosening. There were 8 males and 7 females with anaverage age of 62 years (range 42-75 years). The infected signs were found from 6 months to 2 years after initial THA. All of them had Tsukayama type IV and late infection, including 6 cases of acetabular infected loosening (5 cases of one-stage and 1 case of two-stage acetabular revision), 7 cases of simple infected loosening of femoral prosthesis (4 cases of one-stage and 3 cases of twostage femoral prosthesis revision), and 2 cases of joint capsule infection and sinus without prosthesis loosening (debridement and continuous irrigation). Results All incisions healed by first intention. Fifteen patients were followed up for 12 to 36 months (average 24 months). In 13 cases of revision, postoperative X-ray films showed that femoral acetabular prostheses were in good position, and had no cl inical and imaging infective signs of loosening. In 2 cases of joint capsule infection, sinus recurred 6 months postoperation without hip joint pain, the function of weight-bearing and walking of hip joint was normal. Harris score increased from preoperative average of 42 to postoperative average of 85; the results were excellent in 4 cases, good in 7 cases, and fair in 4 cases. Conclusion The infection of THA may occur in the whole joint, half-joint or just in joint capsule. The initial stabil ity of the prosthesis would affect the long-term survival of the prothesis. If the prosthesis initial stabil ity is obtained, even if there are infective factors, infections would also be l imited.
The noses of eight patients being dead for 2hours were dissected to investigate the layers andstructure of the nose, and the stability of theimplanted silicone noae prosthesis was tested.According to the structure and microstructure ofthe nose studied by us, we suggested a newconcept of nasal muscle and dorsal deepfasciacomplex. We confirmed the prcathesis should beimplanted in the space between the nasal boneand the complex. The reason for complicationhappened in this approach was that...
ObjectiveTo investigate the effects of the femoral head size on the linear wear rate of highly crosslinked polyethylene (HXLPE) l iner in total hip arthroplasty (THA).
MethodsA retrospective analysis was performed on the cl inical data of 41 patients (43 hi ps) who underwent primary THA with HXLPE liner and different sizes of femoral heads between January 2004 and December 2007 for hip diseases. There were 22 males (23 hi ps) and 19 females (20 hi ps) with a mean age of 60.2 years (range, 35-89 years), including femoral neck fracture (26 hi ps), avascular necrosis of femoral head (8 hi ps), osteoarthritis (5 hi ps), rheumatoid arthritis (2 hi ps), and congenital hip dysplasia (2 hi ps). According to the size of the femoral head, the patients were divided into 2 groups: standard head size (26 and 28 mm) was used in 25 cases (26 hi ps, group A) and big head size (32, 36, and 40 mm) in 16 cases (17 hi ps, group B). The cumulative penetration of the femoral head, linear wear rate, and effectiveness were evaluated and compared between 2 groups.
ResultsAll the incisions healed by first intention, no complications of infection, deep vein thrombosis, or nerve injury occurred. The patients were followed up 5-9 years (mean, 5.7 years). No two-stage revision was needed. Harris score was significantly improved at 3 months, 6 months, and 1, 2, 3, 4, and 5 years after operation when compared with preoperative score in each group (P < 0.05), but no significant difference was found between different time points after operation in 2 groups (P > 0.05), and between 2 groups at each time point (P > 0.05). Acetabular abduction angle was (31.4±3.8)° in group A and (32.3±4.1)° in group B, showing no significant difference (t=0.482, P=0.621). At last follow-up, no radiographic or cl inical loosening was observed in each group. At 5 years after operation, X-ray results of acetabular components showed radiolucent line ( < 1 mm) in 1 case (1 hi p) and 1 case (1 hi p) of 2 groups respectively; but X-ray results of femoral components showed no radiolucent line. There was no significant difference in the cumulative penetration of the femoral head between 2 groups at 1, 2, 3, 4, and 5 years after operation (P > 0.05). The linear wear rate was (0.026±0.007) mm/year in group A and (0.025±0.007) mm/year in group B, showing no significant difference between 2 groups (t=0.708, P=0.483).
ConclusionNo association is found between femoral head size and the linear wear rate of HXLPE liner. It is an ideal interface of THA because of its low linear wear rate.
【Abstract】 Objective To explore the effectiveness of multiple joint arthroplasty in treating lower limb joint disease. Methods Between January 2000 and December 2007, 5 patients with lower limb joint disease (three or more joints were involved) were treated with total hip and knee arthroplasty. There were 3 males and 2 females, aged from 27 to 59 years (mean, 41.8 years). Two patients had ankylosing spondylitis and 3 had rheumatoid arthritis, whose hip and knee joints were involved. Four patients lost the ability of walking preoperatively, 1 patient could only walk with crutch. The Harris score was 24 ± 24 and the Hospital for Special Surgery (HSS) score was 28 ± 15. All patients underwent multiple joint arthroplasty simultaneously (2 cases) or multiple-stage (3 cases). Results Wounds healed by first intention in all patients. In 1 patient who had dislocation of the hip after operation, manipulative reduction and immobilization with skin traction were given for 3 weeks, and no dislocation occurred; in 2 patients who had early sign of anemia, blood transfusion was given. All patients were followed up 46-140 months with an average of 75 months. The patients could walk normally, and had no difficulty in upstairs and downstairs. The stability of the hip and knee was good, and no joint infection or loosening occurred. The Harris score was 88 ± 6 at last follow-up, showing significant difference when compared with the preoperative score (t=8.16, P=0.00); the HSS score was 86 ± 6, showing significant difference when compared with the preoperative score (t=13.96, P=0.00). Conclusion Multiple joint arthroplasty is an effective treatment method in patients with lower limb joint disease, which can significantly improve life quality of patients.
Along with the wide application of silicone gel implants in augmentation mammaplasty, more complications appeared. The author reported 24 cases of complicationssince 1989, including one case of heamtoma, one case of infection, two cases of injury of the sensory nerves to the nipple, four cases of asymmetric breast (as ymmetry in position and size), three cases of deformed appearance, six cases of constracture of the fibrous coating membrane, one case of rupture of prosthesis,one case of sinus formation and three cases of abnormal milk secretion. The causes of the complications and their prevention were discussed.
Objective
To discuss the short-term effectiveness of total hip arthroplasty (THA) for post-traumatic osteoarthritis secondary to acetabular fracture.
Methods
Between January 2004 and March 2012, the clinical data was analyzed retrospectively from 12 cases (13 hips) of post-traumatic osteoarthritis secondary to acetabular fracture undergoing THA. Of 12 patients, 6 were male and 6 were female, with an average age of 55.6 years (range, 40-68 years). The locations were the left hip in 5 cases, the right hip in 6 cases, and bilateral hips in 1 case. The interval between acetabular fracture and THA was 65.7 months on average (range, 12-240 months). The preoperative hip Harris score was 48.8 ± 9.5.
Results
The incisions healed by first intention. No deep vein thrombosis and infection occurred postoperatively. Ten cases were followed up 1-7 years (mean, 4.8 years). The hip Harris score was 86.5 ± 8.6 at last follow-up, showing significant difference when compared with preoperative score (t=10.520, P=0.006). X-ray films showed no acetabular prosthesis instability. Stem subsidence (2 mm) occurred in 1 case, peri-prosthetic osteolysis in 2 cases, and heterotopic ossification in 2 cases (Brooker type I and type II in 1 case, respectively).
Conclusion
THA has satisfactory short-term effectiveness for post-traumatic osteoarthritis secondary to acetabular fracture. The good effectiveness is based on strict case selection, pathological evaluation, and the proper acetabular reconstruction.
Objective To investigate the short- and mid-term effectiveness of unicompartmental knee arthroplasty (UKA) for post-traumatic arthritis (PTA) of knee. Methods The clinical data of 30 patients with PTA of unilateral knee between March 2014 and September 2021 was retrospectively analyzed. There were 14 males and 16 females with an average of 64.5 years (range, 33-81 years). The average body mass index was 26.7 kg/m2 (range, 19.8-35.6 kg/m2). The types of injuries that caused PTA included intra-articular fracture in 16 cases, extra-articular fracture in 8 cases, and soft tissue injury in 6 cases. The initial injuries were treated by conservative therapy in 12 cases and by surgical therapy in 18 cases. Ten cases were medial compartment osteoarthritis and 20 cases were lateral compartment osteoarthritis. According to Kellgren-Lawrence staging, there were 19 cases of grade Ⅲ and 11 cases of grade Ⅳ. The operative time, the length of hospital stay, complications, and subjective satisfaction were recorded. The Oxford Knee Function Score (OKS), Hospital for Special Surgery (HSS) score, and knee range of motion (ROM) were used to evaluate knee function. Weight-bearing X-ray films were taken to measure the femoro-tibial angle (FTA) and to assess alignment correction of the lower limb. Results The operative time ranged from 50 to 95 minutes (mean, 63.7 minutes), the length of hospital stay ranged from 3 to 8 days (mean, 6.9 days). Superficial infection occurred in 2 patients, while the remaining incisions healed by first intention. There was no deep vein thrombosis or neurovascular injury. All patients were followed up 17-109 months (median, 70 months). At last follow-up, OKS score, HSS score, and ROM in 30 cases significantly improved when compared with those before operation (P<0.05). Lower limb alignment was significantly corrected and there was significant difference in FTA of the varus and valgus knees between pre- and post-operation (P<0.05). The patient satisfaction rate was 86.7% (26/30). Two cases developed contralateral osteoarthritis progression during follow-up. No bearing dislocation, prosthesis loosening or sinking occurred and none required further revision. Conclusion For patients with PTA of knee, UKA can obtain definite short- and mid-term effectiveness with high patient satisfaction.
Objective
To evaluate long-term clinical results in patients who underwent mitral valve replacement and suture tricuspid annuloplasty.
Methods
We included 401 patients who underwent mitral valve replacement and suture tricuspid annuloplasty in our hospital between January 2006 and March 2011. There were 309 females and 92 males at age of 17-71 (46.2±12.0) years. All patients were investigated by echocardiography at postoperative 5 years. The tricuspid valve procedures consisted of bicuspidization, modified Kay annuloplasty and leaflet repair according to the actual conditions.
Results
The patients were followed up for 5–10 (7.4±1.4) years. As compared with preoperation, the right atrium (RA, 7.6±13.0 mm vs. 49.3±13.2 mm), right ventrium (RV, 23.2±4.7 mm vs. 22.0±3.6 mm), left atrium (LA, 59.7±19.0 mm vs. 53.6±14.7 mm, left ventrium (LV, 49.3±8.6 mm vs. 47.7±6.2 mm), tricuspid of end-distolic diameters (TEDD, 35.9±5.7 mm vs. 32.8±5.9 mm) and tricuspid of end-systolic diameters (TESD, 9.4±5.7 mm vs. 26.5±4.9 mm) of patients decreased significantly at postoperation (P<0.01). As compared with preoperation, left ventricular ejection fraction (LVEF, 60.3%±8.9% vs. 61.7%±8.3%) and left ventricular fractional shortening (LVFS, 32.6%±6.3% vs. 33.8%±5.5%) raised significantly at postoperation (P<0.01). As compared with preoperation, the constituent rate of tricuspid regurgitation (TR) improved significantly at postoperation (P<0.01).
Conclusion
Tricuspid annuloplasty adopting TEDD as a surgical indication is reasonable for patients with mitral diseases. Combined and individualized suture tricuspid annuloplasty can obtain better long-term results. It is needed to order aggressive diuretics treatment for patients with postoperative TR.
ObjectiveTo compare short- and medium-term effects of Leonardo da Vinci robot-assisted and traditional mitral valvuloplasty.MethodsWe conducted a retrospective analysis of 74 patients who underwent mitral valvuloplasty in our hospital from January 2015 to March 2017. The patients were divided into two groups according to the mode of operation: a da Vinci group (n=29, 13 males, 16 females at an average age of 52 years) and a routine group (n=45, 18 males, 27 females at an average age of 53 years). The perioperative data of patients in the two groups were compared and analyzed.ResultsThere was no significant difference in sex, age, weight, height, body mass index (BMI), cardiac function (NYHA), hypertension, diabetes, postoperative blood transfusion and postoperative complications between the two groups (P>0.05). The tracheal intubation time, ICU retention time, hospital stay time, blood loss and postoperative drainage in the da Vinci group were shorter or less than those in the routine group (P<0.05). The operation time, cardiopulmonary bypass time and aortic clamping time in the da Vinci group were longer than those in the routine group (P<0.05). Different surgical procedures had no significant effect on left atrial diameter (LAD), left ventricular end-diastolic diameter (LVEDD), left ventricular ejection fraction (LVEF) and mitral regurgitation (MR) 3 years after operation. There was no interaction between the mode of operation and the time of follow-up. There was no significant difference in echocardiographic evaluation in the same period (P>0.05).ConclusionDa Vinci operation shortens the rehabilitation process of patients compared with traditional surgery. For short- and medium-term follow-up results, there is no difference between Leonardo da Vinci and traditional mitral valve surgeries, and the clinical effect of da Vinci robot-assisted mitral valvuloplasty is satisfactory, which is worthy of further clinical promotion.
