Half wrist arthroplasty for the reconstruction of bone defects after en-bloc resection of giant cell tumors of the distal radius
ZHANG Shuai
XU Mei-tao
WANG Jia-jia
WANG Xu-quan
Abstract：Objective To evaluate the clinical results of half wrist arthroplasty for the reconstruction of bone defects after en-bloc resection of giant cell tumors ( GCT ) of the distal radius.Methods From January 2009 to January 2014,11 patients with GCT of the distal radius underwent half wrist arthroplasty after en-bloc resection.There were 5 females and 6 males,whose mean age was 39 years old ( range: 26-51 years ).The Campanacci radiographic grading system was used to evaluate the grade of GCT.Two of the 11 patients were at Grade Ⅱ and the other 9 patients were at Grade Ⅲ.There was a cases of pathological fracture and 5 cases of sustained recurrence after tumor curettage and bone grafting.Radiological evaluation was performed,including distant metastasis,local recurrence,prosthetic loosening and prosthetic dislocation.The range of motion of the wrist joint was observed and recorded during the follow-up,and the function was evaluated by using Mankin score.Results All the patients were followed up,including 9 patients in out-patient clinic and 2 patients on the phone.The mean follow-up period was 34.6 months.All the patients were satisifed with the clinical results,with no complications of wrist joint pain,swelling or infection.Primary healing of the soft tissues was achieved.No obvious osteolysis or hyperostosis was found around the prostheses.However,only a patient had relapse in the soft tissue at 15 months after the operation,and no distant metastasis or local recurrence was found in the other patients.The average range of motion of the wrist joint was 20° flexion,30° dorsiflexion,8° ulnar deviation and 10° radial deviation.The average rotation degree of the forearm was 25° pronation and 40° supination.According to the Mankin score,there was an excellent case,4 good cases,5 passable cases and a poor case.Conclusions The half wrist arthroplasty for the reconstruction of bone defects after en-bloc resection of GCT of the distal radius can not only completely remove the tumors,but also retain the function of the wrist joint.However,its long-term results remain to be observed.
Keywords：Giant cell tumor of boneRadiusCarpal jointsJoint prosthesis
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 366-371 )