Abstract: Objective: To discuss the methods and clinical application of the artificial PROLENE PMH, a polypropylene mesh patch, in reconstruction of the joint capsule, after prosthetic replacement due to malignant bone tumor. Methods: The data of 10 cases, including 7 males and 3 females with an average age of 52 years, with malignant tumor surrounding the shoulder joint, thigh joint or articulation of the knee diagnosed between August 2003 and April 2005, were retrospectively summarized. All of the patients received the artificial PMH for reconstruction of the joint capsule, after undergoing wide excision and prosthetic replacement. After follow-up, the results of the pre- and postoperative clinical results were analyzed and evaluated. Results: All patients were followed-up for a period of 3 months to 1 year (average 7.5 months) and had well-healed incisions of stage I. The drainage tube was pulled out a median of 5 days after surgery (range, 4 to 7 days). No infection of the incisions or dislocation of the prosthesis occurred. The joint function was evaluated according to the MTST assessment system of joint functions. Preoperatively, 6 joints were graded as fine and, 4 were acceptable. Postoperatively, and 8 joints were fine and 2 were acceptable. The therapeutic results for final follow-up of all of the patients were satisfactory. Conclusion: The articular capsule plays an important part in the stability of joints and the reconstruction of malignant tumor-involved joints after prosthetic replacement. Satisfactory results hasve been obtained using the PROLENE PMH.