肩胛骨关节盂肿瘤罕见，重建手术极具挑战性，本研究介绍一种3D打印结合反式非限制肩胛骨假体治疗肩胛盂肿瘤的手术方法，并评价其临床疗效与功能。

1例23岁的年轻女性，诊断为左肩胛盂侵袭性骨母细胞瘤，采用3D打印结合反式非限制肩胛骨假体治疗，并采用生物补片增加假体静态稳定性，使用肌肉骨骼肿瘤协会（musculoskeletal tumor society,MSTS）评分，上肢功能障碍（disabilities of the arm, shoulder and hand，DASH）评分对临床和功能结果、并发症进行了回顾性分析。

术中对肩胛盂肿瘤进行了广泛切除和假体重建，术后4 d出现关节脱位，重新切开复位并更换组件，后期未出现并发症。随访期间未发生局部复发和远处转移，MSTS、DASH评分分别为25.5 / 30分、12.5分。

3D打印结合反式非限制肩胛骨假体治疗肩胛盂肿瘤是一个比较可靠的方法，对手术医师软组织平衡的重建要求较高，重建满意后可以带来较好的临床和功能结果。

Although the scapular girth is a common site for musculoskeletal tumors, labrum tumors of the shoulder joint remain very rare. At present, various reconstruction methods include humeral suspension, inactivation, and replantation of allogeneic or autologous bone, prosthesis replacement, and so on. Because prostheses can achieve a good appearance and certain shoulder joint function, they are currently widely used. Currently, common scapular prostheses include simple scapular prostheses, restrictive orthoshoulder prostheses, restrictive reverse shoulder prostheses, and non-restrictive reverse shoulder prostheses. When a restrictive prosthesis replacement is adopted, recovery of shoulder joint function in patients after surgery is often unsatisfactory. In a few foreign studies, patients who underwent non-restrictive reverse shoulder replacement all achieved relatively satisfactory function after the operation, and reports have noted shoulder abduction reaching 120° after the operation.

To introduce a surgical method for treating scapular glenoid tumors by combining 3D printing with trans-unrestricted scapular prosthesis, and evaluate its clinical efficacy and function.

A 23-year-old young female was diagnosed with invasive osteoblastoma in the left scapular glenoid. We treated her with 3D printing and a transunrestricted scapular prosthesis, and used biological patches to enhance the prosthesis's static stability. The clinical and functional outcomes and complications were retrospectively analyzed using MSTS and DASH scores.

During the operation, extensive resection and prosthesis reconstruction were performed on the scapular glenoid tumor. Four days after the operation, joint dislocation occurred. Reincision reduction and component replacement were performed. No complications occurred in the later stage. During the follow-up period, no local recurrence or distant metastasis occurred. The MSTS and DASH scores were 25.5/30 and 12.5, respectively.

Three-dimensional printing combined with unrestricted scapular prosthesis for the treatment of scapular glenoid tumors is a relatively reliable method. It has high expectations for surgeons' reconstruction of soft-tissue balance. After satisfactory reconstruction, it can bring better clinical and functional results.