PURPOSE: In the present study, the usefulness of single bone flexible intramedullary nail fixation in pediatric displaced both forearm bone shaft fractures was evaluated. MATERIALS AND METHODS: From 2006, we treated 14 consecutive pediatric both forearm bone shaft fractures using a single bone flexible intramedullary fixation. The average age of patients was 8.6 years (range, 3-12 years). We nailed the one bone of the two that showed either greater deformity in the initial radiographs, or difficulty in maintaining reduction, which in our cases was usually the radius. The operation time, duration of cast removal, functional recovery and complications were evaluated. The bony alignment, maintained until bony union, was analyzed by radiographic assessment. These data were compared with 27 cases of both bone nailing, which was the standard treatment in our institution prior to 2006. RESULTS: All cases in both groups healed without secondary intervention. All cases recovered to a normal functional status after postoperative average 12 weeks. In regards to their clinical and radiographic results, there was no significant difference between the single bone fixation group and the both bone fixation group, except that there was a shorter operation time, and longer period of cast immobilization, for the single bone fixation group. CONCLUSION: Single bone flexible intramedullary fixation is a useful method for the treatment of displaced forearm bone shaft fractures in children. The strategy of fixating the bone that exhibits greater deformity or difficulty in maintaining reduction, which was usually the radius, was found to be effective in our cases.
Bone Nails ; Child ; Congenital Abnormalities ; Forearm ; Humans ; Immobilization ; Nails ; Radius

46 patients with occult fracture on middle third of tibia shaft due to many causes were surgical treated by intramedullary fixation with Küntscher nail: 37 patients were treated at Viet Duc Hospital from January 1996 to July 1999 and 9 patients were treated at Hospital No 103 from April 1993 to July 1999. Outcomes: very good 27 cases (84.37%), good 5 cases (15.63%). Advantages of this procedure were firm fixation; early rehabilitation that helping bone union; easy to use so that it can be used at all hospitals; dissection of periosteum in this procedure is less than fixation with screw that making less vascular damages and better healing. Disadvantages were higher risk of infections, slower bone union, and this procedure can’t be used for fracture of upper or lower third of tibia shaft
Tibial Fractures ; Fractures, Bone ; Therapeutics ; surgery ; nails

PURPOSE: To evaluate the results of bone transport using external fixator over an intramedullary nail for defects of long bone. MATERIALS AND METHODS: We treated 14 cases of bone defect after chronic osteomyelitis or trauma of tibia (12 cases) and femur (2 cases) using this method. The mean age of index procedure was 46.9 years, and all of them had follow-up study for a mean of 3 years. After the corticotomy and insertion of intramedullary nail, bone transport was done by external fixators. Then, the segment was moved and bone graft was done at docking site. RESULTS: The mean transported amount was 5.8 cm, and the external fixator was removed after 141 days. The mean external fixation index was 25.6 days/cm. Primary union of distraction and docking site was achieved in all, but one had failure in union of docking site. According to the Mekhail's functional criteria, there were 5 excellent, 6 good, and 3 fair results. Among 15 complications, there were 2 major complications with residual sequelae, and they were 1 recurred osteomyelitis and 1 flexion contracture of knee. CONCLUSION: Bone transport using external fixator over an intramedullary nail, can successfully solve defects of long bone. Since this method can remove external fixators earlier than the conventional method, it has fewer complications and makes patients to return to daily life earlier.
Bone Nails ; Contracture ; External Fixators ; Femur ; Follow-Up Studies ; Humans ; Nails ; Osteomyelitis ; Tibia ; Transplants

PURPOSE: To evaluate the efficiency of additional fixation of the alternative bone substitute in unstable intertrochanteric fractures treated with gamma nail and alternative bone substitute and only with gamma nail. MATERIALS AND METHODS: Radiologic comparison was done between forty-four patients of unstable intertrochanteric fracture (AO type A2.2, A2.3) during six months. The patients were divided into two groups, a group treated with gamma nail and alternative bone substitute (22 patients, group 1) and another group treated only with gamma nail (22 patients, group 2). Postoperative reduction status, Cleveland index, Tip-apex distance and complications during the follow-up period was compared. Lag screw slippage and femoral neck-shaft angle change were measured between two groups. RESULTS: No significant difference of reduction status, Cleveland index and Tip-apex distance was found. In group II, there was a 1 more case of cutting-out of the lag screw, but also there was a significant difference. Lesser change in lag screw slippage and neck-shaft angle change was investigated. CONCLUSION: As there are lesser lag screw slippage and neck-shaft angle change, alternative bone substitutes applied in unstable intertrochanteric fractures seems to be useful in maintaining reduction and preventing failure of internal fixation when proper reduction and screw insertion is performed.
Bone Substitutes ; Femur ; Follow-Up Studies ; Hip Fractures ; Humans ; Nails

OBJECTIVETo study the curative effects of close nail-pry reduction and internal fixation with hollow screws for treatment of linguiform calcaneus fracture.

METHODSFrom May 2006 to October 2009,32 patients (35 feet) with linguiform calcaneus fracture were treated by close nail-pry reduction and internal fixation with hollow screws, including 23 males and 9 females ranging in age from 25 to 46 years, with a mean of 37.6 years. According to Paley classification, 3 cases were Paley II a, and 29 cases were Paley II b. All cases were close fractures. The time from injury to operation was 3 to 10 days after most swelling subsided. Böhler angle and Gissane angle were measured by X-ray before and after operation. The therapeutic effect was assessed according to ZHANG Tie-liang's foot score.

RESULTSAll the patients were followed-up for 6 to 18 months, with a mean of 12 months. All fractures gained bone healing. The time of fracture healing averaged 12 months. The fractures healed completely and no infection occurred. According to ZHANG Tie-liang's foot scale, the postoperative function was excellent in 18 feet, good in 10 feet, moderate in 5 feet and poor in 2 feet. The Böhler angle and Gissane angle were significant improved after treatment (P < 0.01).

CONCLUSIONThe surgical method of close nail-pry reduction and internal fixation with hollow screws for treatment of linguiform calcaneus fracture can regain the foot function, with minimal injury, fewer complications, earlier recovery and lower costs.

Adult ; Bone Nails ; Bone Screws ; Calcaneus ; injuries ; Female ; Fracture Fixation, Internal ; methods ; Humans ; Male ; Middle Aged

Bone Nails ; Bone Plates ; Fracture Fixation, Intramedullary ; instrumentation ; methods ; Humans ; Tibial Fractures ; surgery

OBJECTIVE: A3 intertrochanteric fracture is an extremely unstable fracture, which is often treated with intramedullary nail, but the implant failure is common due to the posterior medial fragment cannot be reconstructed. A new medial sustainable nail (MSN-Ⅱ) which can reconstruct the femoral medial support by sustainable screw was introduced in this study. The mechanical effect was verified by biomechanical experiment. METHODS: The loss medial support model of intertrochanteric fracture (A3) was made by artificial Sawbones model, fixed with MSN-Ⅱ and PFNA-Ⅱ, underwent axial loading and axial failure tests. The axial stiffness, yield load, displacement of head-neck fragment and torsional angle of fracture site of these nails were recorded and compared for biomechanical differences. The effect of early reconstruction of medial support with MSN-Ⅱ was determined. RESULTS: The axial stiffness, yield load, the displacement of head and neck fragment when the axial load was 1 800 N and torsional angle of the fracture site after the axial failure test of MSN-Ⅱ were (222.76 ±62.46) N /mm, (4 241.71 ±847.42) N, (11.51 ±0.62) mm, (1.71 ±0.10)° respectively, while the PFNA -Ⅱ was (184.58±40.59) N /mm, (3 058.76±379.63) N, (16.15±1.36) mm, (2.52±0.26)°respectively. The difference between the two groups was statistically significant. CONCLUSION The axial stiffness of MSN-Ⅱ is better than that of PFNA-Ⅱ. The MSN-Ⅱ can bear more loads when fixed A3.3 intertrochanteric fracture and has greater axial and rotational stability. It is an effective means to reconstruct the medial support of A3 intertrochanteric fracture.
Biomechanical Phenomena ; Bone Nails ; Bone Screws ; Femur ; Fracture Fixation, Intramedullary ; Hip Fractures/surgery* ; Humans

OBJECTIVE: To evaluate the efficacy and safety of proximal femoral nail antirotation (PFNA) and dynamic hip screw (DHS) for unstable intertrochanteric fractures using meta-analysis. METHODS: The PubMed, Embase, Cocharane Central Register of Controlled Trials, Google Scholar, China Science and Technology Papers and Citation Database (CSTPCD) and China Journal Full-text Database (CNKI) were searched for published randomized controlled trials before January 1, 2019. Two researchers independently screened the literature in the light of the inclusion and exclusion criteria, evaluated the quality of the studies and extracted the data which were consisted of clinical efficacy indexes, such as incision length, operation time,intraoperative blood loss, weight-bearing time,fracture-healing time, Harris hip score and safety indicators like complications. Meta-analysis was performed with the Revman 5.3 software provided by Cochrane Community in line with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) standard. RESULTS: Nine randomized controlled trials met the requirement with a total of 779 patients, of whom 383 were fixed with PFNA and 396 with DHS. Meta-analysis demonstrated that PFNA was associated with smaller surgical incision length [MD=-7.43, 95%CI (-9.31, -5.55), P<0.05], shorter operation time [MD=-22.76, 95%CI (-29.57, -11.95), P<0.05], less intraoperative blood loss [MD=-216.34, 95%CI (-275.18, - 157.49), P<0.05], earlier weight bearing after surgery [MD=-12.34, 95%CI (-17.71, -6.97), P<0.05], shorter fracture healing time [MD=-5.00, 95%CI (-7.73, -2.26), P<0.05], higher postoperative Harris hip score [MD=12.22, 95%CI (3.88, 20.55), P<0.05], higher rate of excellent Harris hip score [OR=3.56, 95%CI (1.44, 8.81), P<0.05] and lower incidence rate of postoperative complications [OR=0.48, 95%CI (0.33, 0.70), P<0.05], such as hip varus, wound infection, urinary tract infection, pulmonary infection, pressure sore, deep vein thrombosis, pulmonary embolism, heart failure and cerebral infraction when compared with DHS. No statistical difference was shown between the groups when it came to subgroup analysis by age. However, there was no significant difference (P>0.05) in the duration of hospitalization and the complications resulting in the occurrences of internal fixation loosening, such as femoral shaft fracture (during or post operation), internal fixation fracture, cut-out, displacement or retraction. CONCLUSION Current published evidence supports the superiority of PFNA to DHS for unstable intertrochanteric fractures in terms of clinical efficacy. The conclusion was limited because of the relatively low quality of evidence with low strength of confidence. Large scale and high-quality randomized controlled trials are required to validate the safety of PFNA and DHS for unstable intertrochanteric fractures.
Bone Nails ; Bone Screws ; China ; Femoral Fractures ; Femur ; Fracture Fixation, Internal ; Hip Fractures ; Humans

OBJECTIVE: To compare the clinical efficacy of lengthened proximal femoral nail anti-rotation(PFNA) combined with minimally invasive percutaneous plate osteosynthesis(MIPPO) and common PFNA in the treatment of AO-A3.3 intertrochanteric fracture. METHODS: The clinical data of 58 patients with AO-A3.3 intertrochanteric fracture treated from January 2015 to April 2020 were retrospectively analyzed. Among them, 27 patients were treated with extended PFNA + MIPPO plate to reconstruct the lateral wall (group A), and 31 patients were treated with closed reduction and PFNA fixation (group B). The bleeding volume, operation time, femoral neck length and tip apex distance(TAD), fracture healing time and postoperative complications were observed and compared between two groups. Harris score was used to evaluate hip joint function 10 months after operation. RESULTS: All patients were followed up for 12 to 28 months. The incision healed well after operation. The bleeding volume and operation time of group A were significantly more than that of group B (P<0.05), and the fracture healing time of group A was significantly less than that of group B(P<0.05). There was no significant difference in the length of femoral neck between two groups at 2 days after operation(P>0.05). The length of femoral neck at 6 months after operation in each group was shorter than that at 2 days after operation(P<0.05), and the shortening of femoral neck at 6 months after operation in group B was significantly shorter than that in group A(P<0.05). There was no significant difference in TAD values between two groups at the same time point(P>0.05) at 2 days and 6 months after operation. There was no significant difference in TAD values between 2 days and 6 months after operation(P>0.05). The incidence of complications in group B was significantly higher than that in group A(P<0.05). The Harris scores of hip joint function in group A were higher than those in group B 10 months after operation (P<0.05). CONCLUSION Compared with the treatment of AO-A3 femoral intertrochanteric fracture with closed reduction and PFNA fixation, the lengthened PFNA combined with MIPPO small plate for reconstruction and fixation of the lateral wall can promote the fracture healing, improve the patient's functional recovery, and significantly reduce the complications.
Humans ; Bone Nails ; Fracture Fixation, Intramedullary ; Retrospective Studies ; Hip Fractures/surgery* ; Bone Plates ; Femoral Fractures/surgery*

OBJECTIVE: To observe the clinical effect of autologous bone marrow blood injection combined with elastic intramedullary needle implantation in the treatment of long bone cyst in children. METHODS: From January 2010 to December 2015, 29 children with long bone cyst were treated with autologous bone marrow blood injection combined with elastic intramedullary nail implantation, including 22 males and 7 females, aged 2 to 12 years old with an average age of 7.7 years old, and the course of disease was 12 to 84 months. Among them, 17 cases were proximal humerus, 9 cases were proximal femur, 2 cases were distal femur and 1 case was proximal ulna. All children with bone cyst underwent preoperative X-ray examination and CT or MRI examination if necessary. After definite diagnosis, bone marrow blood injection combined with elastic intramedullary needle support and drainage were used as treatment methods. After operation, multiple X-ray examination and follow-up were carried out. The curative effect was evaluated with Capanna bone cyst treatment evaluation criteria. RESULTS: Twenty-seven of 29 children were followed up for 12 to 60 months with an average of 31.8 months. According to the evaluation criteria of Capanna bone cyst, 26 cases were cured and 1 case was partially healed with residual lesions. CONCLUSIONS Autologous bone marrow blood injection combined with elastic intramedullary needle has the characteristics of definite curative effect, high cure rate, fewer complications and objectively controllable treatment process for simple long bone cyst in children.
Bone Cysts ; Bone Marrow ; Bone Nails ; Child ; Child, Preschool ; Female ; Fracture Fixation, Intramedullary ; Humans ; Humerus ; Male ; Treatment Outcome