Objective To evaluate the clinical effect of cannulatedscrew on treatment of femoral neck fracture(FNF). Methods Forty-two FNFpatients were treated by using cannulated screw from January 2001 to December 2005.There were 22males and 20 females with an average age of 41 years (19-59 years). Fracture was caused by traffic accident in 21 cases, by falling from height in 14 cases and by bruise in 7 cases. All cases were fresh fracture. According to Garden criterion for typing, 15 cases were classified as type Ⅱ, 16 cases as type Ⅲ and 11 cases as type Ⅳ . It was 7 hours to 15 days from injury to operation. Results Thepatients were followed up for 1-6 years with an average of 2.5 years. The average fracture union time was 6.5 months. Three patients had ischemic necrosis of femoral head, andloosening and breakage of screw and rob was observed in 1 case. According to Brumback criterion for hip joint function, the result was excellent in 18 cases, good in 20 cases and bad in 4 cases, and the excellent and good rate was 90.4%. Conclusion Cannulated screw fixation is a good method to treat FNF in young adults. It can improve the rate of fracture union and reduce the rate of avascular necrosis of femoral head.
Objective To compare the therapeutic effect of cannulated screws fixation at different time points through different reduction methods on the heal ing of displaced femoral neck fractures. Methods From January 1997 to September 2007, 240 patients with displaced femoral neck fracture were treated, including 121 males and 119 females aged 22-79 years old (average 56 years old). All cases were fresh and close fractures. According to the fractured part, there were 133cases of subcapital fracture, 64 of transcervical fracture and 43 of basal fracture. According to Garden classification, there were 105 cases of type III and 135 of type IV. Cannulated screws fixation was performed on all the patients, and the time from injury to operation was 6 hours to 7 days. Fifty-five cases received closed reduction and 59 cases received l imited open reduction as emergency treatment, while 65 cases received closed reduction and 61 cases received l imited open reduction as selective operation. Different groups were compared in terms of the heal ing rate of fracture, the excellent and good rate of reduction as well as the excellent and good rate of fixation. Results There was no significant difference between the closed reduction and the l imited open reduction in terms of operation time and bleeding volume (P gt; 0.05). Postoperatively, all wounds healed by first intention, no infection was observed, avascular necrosis of femoral head occurred in 44 cases, and the rate of avascular necrosis of femoral head in the l imited open reduction at emergency group was less than that of other 3 groups (P lt; 0.01). All the patients were followed up for 12-72 months (average 38 months), 193 cases got fracture heal ing at 10-23 months after operation (average 14 months). For the closed reduction as emergency operation group, the l imited open reduction as emergency operation group, the closed reduction as selective operation group, and the l imited open reduction as selective operation group, the heal ing rate of fracture was 74.55%, 91.53%, 69.23% and 86.89%, respectively; the excellent and good rate of reduction was 73.73%, 94.92%,70.77% and 91.80%, respectively; the excellent and good rate of fixation was 76.36%, 93.22%, 73.85% and 88.52%, respectively. The heal ing rate of fracture, the excellent and good rate of reduction as well as the excellent and good rate of fixation in the l imited open groups were higher than that of the closed reduction groups (Plt; 0.01), and there was no significant difference between the emergency operation groups and the selective operational groups (Pgt; 0.05). Conclusion The reduction methods have significant influences on the heal ing of fractures after cannulated screws fixation of the displaced femoral neck fracture, and the operation time has no obvious effect on fracture heal ing.
Objective To evaluate the therapeutic outcome of artificial total hip arthroplasty (THA) with collum femoris preserving for hip joint desease in young and middle-aged patients. Methods From March 2002 to March 2005, 26 cases (31 hips) of hip joint disease were treated with artificial THA with collum femoris preserving, including 19 males (23 hips)and 7 females (8 hips) and aged 32-48 years with an average of 37 years. In 31 hips, 17 left hips and 14 right hips were involved. There were 9 cases of osteoarthritis of the hip joint caused by avascular necrosis of the femoral head (ANFH), 7 cases of ANFH, 3 cases of femoral head necrosis caused by dysplasia of acetabular, 1 case of osteoarthritis of the hip joint caused by ankylosing spondyl itis, and 2 cases of rheumatoid arthritis; the course of disease was 2-11 years (5.6 years on average). Two cases of femoral neck fracture (Garden IV), and 2 cases of non-union femoral neck fractures (1 for Garden III and 1 for Garden IV), the course of disease was 5 days, 24 months, and 26 months. The prime symptoms were pain, difficult walk and l imp. All patients were taken X-ray to exclude osteoporosis. Results The right distal femur prosthesis of a bilateral patient cracked owing to excessive amputation of collum femoris, and fracture healed after symptomatic treatment. All the incisions healed by first intention and no compl ications occurred. All patients were followed up for 4-7 years, with an average of 5.6 years. One case had poor hip function because he did not follow rehabil itation procedure, and the others achieved good outcome with normal gait. One case complained of persistent pain 6 months after operation, and was rel ieved by administration of some non-steroidal antiinflammatory drugs and anti-osteoporosis drugs 6 months later. The X-ray films after operation and at last follow up showed good location of prosthesis and no bone resorption. Harris score at last follow-up was 91.31 ± 0.77, and it was significantly higher than that before operation (50.88 ± 0.90), (P lt; 0.05). The excellent and good rate was 93.5% (excellent in 11 hips, good in 18 hips, and fair in 2 hips). Conclusion Artificial THA with collum femoris preserving can retain more bone, be easier for revision, and has an excellent outcome.
Objective To compare the effectiveness of biplanar vertical fixation and inverted triangle fixation with hollow screw for Pauwels type Ⅲ femoral neck fracture in young and middle-aged patients. Methods The clinical data of 55 young and middle-aged patients with Pauwels type Ⅲ femoral neck fracture between June 2021 and December 2022 was retrospectively analyzed. All patients were treated with closed reduction and internal fixation with hollow screws, 25 cases were treated with biplanar vertical fixation (study group), 30 cases with inverted triangle fixation (control group). There was no significant difference in gender, age, affected side, cause of injury, underlying diseases, and time from injury to operation between the two groups (P>0.05). The operation time, intraoperative blood loss, fluoroscopy times, guide needle puncture times, starting time of weight bearing, time of full weight bearing, time of fracture healing, and complications were recorded and compared between the two groups. The hip joint function was evaluated by Harris score at 1 day, 6 months, 12 months after operation, and at last follow-up, and the pain relief was evaluated by visual analogue scale (VAS) score. The femoral neck shortening was measured on the X-ray film at last follow-up. Results All patients were followed up 12-31 months (mean, 22.0 months), and there was no significant difference in follow-up time between the two groups (P>0.05). The operation time, intraoperative blood loss, and fluoroscopy times in the study group were higher than those in the control group, but the difference was not significant (P>0.05). The guide needle puncture times in the study group was more than that in the control group, and the time of starting weight bearing and the time of full weight bearing in the study group were shorter than those in the control group, the differences were significant (P<0.05). Bony healing was achieved in both groups, and there was no significant difference in fracture healing time between the two groups (P>0.05). No osteonecrosis of the femoral head and incision-related complication was found in the two groups during follow-up, and the femoral neck shortening length in the study group was significantly shorter than that in the control group at last follow-up (P<0.05). There was no significant difference in Harris score between the two groups at 1 day after operation (P>0.05), and the Harris score of the study group was significantly better than that of the control group at other time points (P<0.05); there was no significant difference in VAS score between the two groups at each time point after operation (P>0.05). Conclusion Compared with the inverted triangle fixation, the treatment of Pauwels type Ⅲ femoral neck fracture with biplanar vertical fixation can effectively reduce femoral neck shortening without affecting fracture healing, and improve hip joint function in early stage.
【Abstract】 Objective To investigate the method to avoid lengthening lower limbs after total hip arthroplasty in patients with congenital short femoral neck. Methods The clinical data were analyzed retrospectively from 38 patients undergoing unilateral total hip arthroplasty between April 2005 and December 2010. There were 26 males and 12 females, aged 45-78 years (mean, 62.3 years). Among these cases, there were 11 cases of avascular necrosis of the femoral head, 17 cases of hip osteoarthritis, and 10 cases of femoral neck fracture. Before operation, 29 cases had leg length discrepancy; and the shortened length of the legs was 10-24 mm with an average of 14.5 mm by clinical measurement, and was 11-25 mm with an average of 14.7 mm by X-ray film measurement. The Harris score before operation was 44.0 ± 3.6. Results At 1 day after operation, 3 cases had legs lengthening by clinical and X-ray film measurement; limb length difference less than 10 mm was regarded as equal limb length in the other 35 patients (92.1%). All incisions healed by first intention, and no complication of infection or lower limb deep venous thrombosis occurred. In 3 patients who had legs lengthening, 1 patient had abnormal gait and slight limping after increasing heel pad because the lower limb was lengthened by 16 mm, and 2 patients had slight limping. The other patients could walk normally and achieved pain relief of hip. Thirty-six patients were followed up 12-68 months (mean, 43.8 months). The Harris score was 86.7 ± 2.3 after 6 months, showing significant difference (t=3.260, P=0.031) when compared with that before operation. The X-ray films showed no prosthetic loosening or subsidence. Conclusion For patients with congenital short femoral neck during total hip arthroplasty, the surgeons should pay attention to osteotomy plane determination, limb length measurement, and use of the prosthesis with collar to avoid the lengthening lower limbs
ObjectiveTo assess the effectiveness of pedicled iliac periosteal flap graft for treatment of avascular necrosis of the femoral head (ANFH) after femoral neck fracture in adolescents. MethodsBetween December 2006 and August 2011, 9 patients (9 hips) with ANFH after femoral neck fracture were treated with pedicled iliac periosteal flap graft. There were 6 males and 3 females with an average age of 14.7 years (range, 10-18 years). Fractures were caused by traffic accident injury (5 cases), falling injury from height (3 cases), and fall injury (1 case). The time from injury to internal fixation with Kirschner wires or cannulated screws was 3-16 days, and all fractures healed within 10 months after internal fixation. The interval between fracture fixation and ANFH was 10-42 months (mean, 24.4 months). According to Steinberg staging system, 1 hip was classified as stage Ⅲb, 2 hips as stage Ⅲc, 1 hip as stage IVa, 3 hips as stage IVb, and 2 hips as stage IVc. The Harris scores and Steinberg classification were compared between at pre- and post-operation to assess the outcomes clinically and radiologically. ResultsAll incisions healed by first intention. No complications of infection, deep venous thrombosis of lower limb, and pain and numbness of donor site were observed during or after operation. All patients were followed up 38-76 months (mean, 52 months). Joint pain was relieved; no leg length discrepancy was observed; the walking gait was improved and range of motion of hips was increased. The Harris score was significantly increased from 62.8±3.6 at pre-operation to 92.7±9.9 at last follow-up, showing significant difference (t=-12.244, P=0.000). The hip function was excellent in 5 hips, good in 3 hips, and poor in 1 hip, and the excellent and good rate was 88.89%. Post-operative radiological assessment demonstrated that only 1 hip (stage Ⅲb) had further collapse of the femoral head, the other hips had no incidence of deterioration. The radiological success rate was 88.89% (8/9). ConclusionThe pedicled iliac periosteal flap graft for ANFH after femoral neck fracture in adolescents can provide good osteogenesis and vascular reconstruction of the femoral head.