ObjectiveTo explore the characteristics and treatment of intertrochanteric fracture, which the proximal part displaced forwardly and angularly.MethodsBetween March 2015 and March 2016, 40 patients with intertrochanteric fracture with forwardly and angularly displaced proximal part were treated with open reduction and intramedullary nailing fixation. There were 11 males and 29 females with the age of 56-87 years (mean, 75.7 years). The causes of injury included traffic accident in 1 case and fall in 39 cases. The body mass index was 18.9-33.8 kg/m² (mean, 24.3 kg/m²). The time from injury to admission was 2-360 hours. The type of fracture according to AO-OTA classification was A1.2 type in 7 cases, A1.3 type in 1 case, A2.1 type in 6 cases, A2.2 type in 9 cases, A2.3 type in 12 cases, A3.2 type in 2 cases, and A3.3 type in 3 cases. The haemoglobin (Hb) value at admission and the lowest values before and after operation were recorded; the amount of transfused-blood during hospital stay and visible blood loss around operation were recorded. The short-form 36 health survey scale (SF-36) before injury and at 12 weeks after operation were recorded for evaluating the quality of living; the visual analogue scale (VAS) score at admission and at 2 days after operation were recorded for evaluating the degree of pain, the fracture union was evaluated by X-ray film and clinical examination, and the Harris hip scale were used to evaluate the injuried hip function at 12 weeks.ResultsThe lowest Hb value before operation was (99.10±16.48) g/L, which was significantly lower than that at admission［(114.33±14.93) g/L］(t=9.134, P=0.000). Eleven patients were treated with blood transfusion at amount of (520.00±269.98) mL before operation. The amount of transfused-blood during operation was (569.23±207.94) mL, and intraoperative blood loss was (373.08±154.68) mL. The lowest Hb value was (105.41±13.36) g/L after operation, and 8 patients were treated with second blood transfusion at amount of (500.00±185.16) mL. The reduction of fracture was rated as excellent in 16 cases, good in 18 cases, and poor in 6 cases according to the modified Baumgaertner criteria at 3 days after operation. Forty cases were followed up 12-15 weeks (mean, 12.8 weeks). No infection occurred. The VAS score at 2 days after operation was 3.2±0.5, which was significantly improved when compared with the value at admission (8.2±0.5) (t=37.500, P=0.000). At 12 weeks after operation, all the fractures healed; the Harris score was 82.5±6.9; and the SF-36 score was 51.4±11.5, which was significantly decreased when compared with the score before injury (54.9±11.5) (t=18.901, P=0.000). There were delirium in 4 cases, pneumonia in 8 cases, urinary infection in 5 cases, and venous thrombosis in 4 cases after operation. And all patients cured after corresponding treatment.ConclusionIntertrochanteric fracture with forwardly and angularly displaced proximal part is a type of unstable fracture, and it is difficult to reduction. It is necessary to achieve a good fracture reduction by means of auxiliary instrument. The anatomical alignment is the primary condition for the good effectiveness, and the anemia before and after the operation must be corrected.

Citation： WANG Jingbo, YU Shujun, LI Chen, ZANG Jiacheng, WANG Yumin. Treatment of intertrochanteric fractures with forwardly and angularly displaced proximal part. Chinese Journal of Reparative and Reconstructive Surgery, 2018, 32(9): 1162-1166. doi: 10.7507/1002-1892.201711099 Copy