Objective To explore the surgical technique and effectiveness of autologous femoral head bone graft in total hip arthroplasty (THA) for Crowe type Ⅲ developmental dysplasia of the hip (DDH) with acetabular bone defect. Methods Between July 2012 and September 2015, 12 cases (12 hips) of Crowe type Ⅲ DDH with acetabular bone defect were included. Of the 12 patients, 2 were male and 10 were female, with an average age of 54.3 years (range, 37-75 years). The Harris score before operation was 41.08±7.90. The preoperative leg length discrepancy was 0.53-4.28 cm, with an average of 2.47 cm. Autologous femoral head bone graft and cancellous screw fixation were used in all cases to reconstruct acetabula in THA. Four cases were performed with subtrochanteric shortening osteotomy at the same time. Results All incisions healed by first intention. Twelve cases were followed up 1 year and 10 months to 5 years, with an average of 3.0 years. X-ray films showed that bone healing was observed in all cases at 6 months to 1 year after operation. There was no bone graft osteolysis, absorption, bone graft collapse, and acetabular prosthesis loosening. At last follow-up, the Harris score was 89.50±2.78, showing significant difference when compared with preoperative value (t=–25.743, P=0.003). The length discrepancy was 0-1.81 cm at last follow-up with an average of 0.76 cm. Conclusion Autologous femoral head bone graft is effective for Crowe type Ⅲ DDH with acetabular bone defect, which has advantages of restoring pelvic bone stock, obtaining satisfied prosthetic stability and mid-term effectiveness.
ObjectiveTo explore the feasibility and effectiveness of total hip arthroplasty (THA) with acetabulum structural bone grafting using autogenous femoral head through direct anterior approach (DAA) in lateral decubitus position in the treatment of Crowe type Ⅲ and Ⅳ developmental dysplasia of the hip (DDH). Methods Between June 2016 and July 2020, 12 patients with Crowe type Ⅲ and Ⅳ DDH were treated with THA with acetabulum structural bone grafting using autogenous femoral head through DAA in lateral decubitus position. There were 2 males and 10 females with an average age of 60.2 years (range, 50-79 years). Crowe classification was type Ⅲ in 10 hips and type Ⅳ in 2 hips. The preoperative Harris score of hip joint was 48.8±7.5, the difference in length of both lower extremities was (3.0±0.7) cm, and the visual analogue scale (VAS) score during activity was 7.2±0.9. The surgical incision length, operation time, intraoperative blood loss, and complications were recorded; the position and press-fitting of acetabulum and femoral prosthesis were observed after operation, and the difference in length of both lower extremities was measured; the horizontal coverage of acetabular cup and bone graft were measured, the healing with the host bone and the loosening of the prosthesis were evaluated; Harris score was used to evaluate hip joint function, and VAS score was used to evaluate patients’ pain during activity. Results The average surgical incision length was 9.3 cm, the average operation time was 117 minutes, and the average intraoperative blood loss was 283 mL. Two patients (16.7%) received blood transfusion during operation. There was no acetabular and femoral fractures during operation. All incisions healed by first intention, without dislocation, periprosthetic infection, sciatic nerve injury, deep venous thrombosis, and other complications. One patient had lateral femoral cutaneous nerve injury after operation. X-ray films at discharge showed a total acetabular cup level coverage of 93%-100%, with an average of 97.8%, and a bone graft level coverage of 25%-45%, with an average of 31.1%. All the 12 patients were followed up 22-71 months, with an average of 42.2 months. At last follow-up, the Harris score of hip joint was 89.7±3.9, the difference in length of both lower extremities was (0.9±0.4) cm, and the VAS score during activity was 1.1±0.6, which were significantly different from those before operation (P<0.05). During follow-up, there was no patient who needed hip revision surgery because of prosthesis loosening. At last follow-up, there was no translucent line between the graft and the host bone, the graft was fused, the position was good, and there was no obvious movement. One patient had one screw fracture and bone resorption at the outer edge of the graft, but the bone graft did not displace and healed well. ConclusionTHA with acetabulum structural bone grafting using autogenous femoral head through DAA in lateral decubitus position in the treatment of Crowe type Ⅲ and Ⅳ DDH is safe and reliable, and has satisfactory short-term effectiveness.
ObjectiveTo compare the short-term effectiveness of one-stage posterior debridement with non-structural bone graft and structural bone graft in the treatment of single segment thoracic tuberculosis.MethodsThe data of 61 patients with single segment thoracic tuberculosis, who were treated by one-stage posterior debridement, bone graft fusion, and internal fixation between June 2011 and August 2015, was retrospectively analyzed. All of them, 26 cases were treated with structural bone graft (group A) and 35 cases with non-structural bone graft (group B). No significant difference was found between the two groups in gender, age, disease duration, comorbidity, involved segments, paravertebral abscess, and preoperative American Spinal Injury Association (ASIA) grade, C reactive protein (CRP), visual analogue scale (VAS) score, and Cobb angle of involved segments (P>0.05). But the preoperative erythrocyte sedimentation rate (ESR) in group B was significantly lower than that in group A (t=3.128, P=0.003). The operation time, intraoperative blood loss, hospitalization stay, VAS score, ESR, CRP, ASIA grade, postoperative complications, Cobb angle of involved segments and its correction rate and loss rate, and bone fusion time were recorded and compared between the two groups.ResultsCompared with group A, group B had shorter operation time, less intraoperative blood loss, and longer hospitalization stay, showing significant differences (P<0.05). The follow-up time of group A was (36.3±10.0) months, which was significantly longer than that of group B [(18.4±4.2) months] (t=10.722, P=0.000). At last follow-up, the VAS score, ESR, and CRP in the two groups all significantly improved when compared with those before operation (P<0.05); the CRP of group B was significantly higher than that of group A (t=–2.947, P=0.005); but there was no significant difference in ESR and VAS score between the two groups (P>0.05). At last follow-up, the ASIA grade of the two groups significantly improved when compared with those before operation, and there was no significant difference between the two groups (Z=–1.104, P=0.270). There were 9 cases and 10 cases of complications in groups A and B, respectively, and there was no significant difference (χ2=0.254, P=0.614). The Cobb angle in group B was significantly higher than that in group A at 3 days after operation (t=–2.861, P=0.006), but there was no significant difference in Cobb angle between the two groups at last follow-up (t=–1.212, P=0.230). The postoperative correction rate and loss rate of Cobb angle in group A were higher than those in group B, and there was a significant difference in the loss rate between the two groups (t=2.261, P=0.031). All patients got bone graft fusion and the bone fusion time of group B was significantly shorter than that of group A (t=4.824, P=0.000).ConclusionNon-structural and structural bone graft can both achieve good effectiveness in the treatment of single segment thoracic tuberculosis, but the former has the advantages of less surgical trauma and shorter fusion time.