Traverso Aurélien, Friedrich Katharina Johanna, Reichert Winfried, Bauer Stefan
Department of Orthopaedics and Trauma Surgery, EHC Morges, Morges, Switzerland.
Independant medical Writer, Heidelberg, Germany.
J Orthop Case Rep. 2021 Aug;11(8):71-74. doi: 10.13107/jocr.2021.v11.i08.2372.
About 20-25% of all rotator cuff tears are associated with footprint bone cysts. Large cysts (>10 mm2) are rare but can be problematic for anchor fixation and rotator cuff repair. So far treatment of footprint bone cysts was described using large or several anchors, cement, or compaction grafting mostly with allograft bone being biologically inferior to restore bone stock compared to autologous grafts.
METHODS/RESULTS: We report about a 57-year-old manual laborer with persistent pain and loss of shoulder function (subjective shoulder value [SSV] 50%). Magnetic resonance imaging showed a high-grade partial supraspinatus tendon tear (>50%) associated with a large supraspinatus footprint bone cyst (10 mm × 11 mm × 17 mm). An efficient setup in lateral position for arthroscopic autologous press-fit grafting from the iliac crest is described for single-stage arthroscopic rotator cuff repair. Improved fixation was achieved using a buddy anchor interference-fit technique.
The clinical follow-up after 12 months showed an excellent outcome (SSV >90%, DASH-Score 14 points, and Constant-Score 87 points) with dynamic ultrasound and radiographs confirming tendon and bone stock restoration.
所有肩袖撕裂中约20%-25%与足印骨囊肿相关。大囊肿（>10 mm2）少见，但可能给锚钉固定和肩袖修复带来问题。到目前为止，足印骨囊肿的治疗方法包括使用大型或多个锚钉、骨水泥或压紧植骨，大多使用同种异体骨，与自体移植物相比，在恢复骨量方面生物学性能较差。
方法/结果：我们报告了一名57岁的体力劳动者，有持续疼痛和肩部功能丧失（主观肩关节评分为50%）。磁共振成像显示冈上肌腱高级别部分撕裂（>50%），伴有一个大的冈上肌足印骨囊肿（10 mm×11 mm×17 mm）。描述了一种在侧卧位进行关节镜下自体髂嵴压配式植骨的有效设置，用于单阶段关节镜下肩袖修复。采用双锚钉干涉配合技术实现了更好的固定。
12个月的临床随访显示结果极佳（主观肩关节评分>90%，DASH评分14分，Constant评分87分），动态超声和X线片证实肌腱和骨量恢复。
