Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Albert-Schweitzer-Campus 1, Building W1, 48149, Münster, Germany.
Eur J Orthop Surg Traumatol. 2024 Jan;34(1):113-117. doi: 10.1007/s00590-023-03615-w. Epub 2023 Jun 23.
To determine the frequency and possible reasons of medial migration with penetration into the acetabulum (MMPA) of the helical blade when using the Trochanteric Fixation Nail Advanced (TFNA) is used for treatment of pertrochanteric fractures.
All patients with pertrochanteric femoral fracture, treated by intramedullary femoral nailing with the TFNA, were retrospectively reviewed for MMPA of the helical blade. Epidemiological parameters, additional procedures, distance of medial migration, time from primary operation to revision as well as type of revision were assessed.
4 of 153 patients treated with the TFNA developed an MMPA of the helical blade (risk = 2.6%), with a mean medial migration of the blade of 11.6 mm (SD 8.8). The mean time from initial operation to revision surgery was 70 days (SD 30). All patients were revised by conversion to cemented total hip arthroplasty.
MMPA of the helical blade is a rare but potentially hazardous complication of femoral nailing with the TFNA femoral nail, resulting in the necessity for revision surgery and total hip arthroplasty.
确定使用 Trochanteric Fixation Nail Advanced（TFNA）治疗股骨转子间骨折时，螺旋刀片向髋臼内穿透并发生内侧迁移（MMPA）的频率及可能原因。
回顾性分析采用 TFNA 髓内钉治疗股骨转子间骨折的所有患者，评估 MMPA 的螺旋刀片的流行病学参数、附加手术、内侧迁移距离、从初次手术到翻修的时间以及翻修类型。
153 例患者中有 4 例（风险=2.6%）发生了螺旋刀片的 MMPA，刀片的平均内侧迁移为 11.6mm（SD 8.8）。初次手术到翻修手术的平均时间为 70 天（SD 30）。所有患者均通过转换为骨水泥全髋关节置换术进行了翻修。
MMPA 是 TFNA 股骨钉内固定治疗股骨转子间骨折的一种罕见但潜在危险的并发症，导致需要进行翻修手术和全髋关节置换术。
