Non-constrained prosthesis for replacement of the first metatarsophalangeal joint (MTP) - Short-term results

Purpose: Does the ReFlexion(R) Implant System provide an alternative in ope rative treatment of hallux rigidus? Methods: We have been using the non-con strained prosthesis since April 1997. 26 implants were reviewed 13-41 month s after insertion, analysing radiological and clinical data. A questionnair e was answered by the patients. Results: Surgery was either performed cemen tless (8 cases), as a hybrid, i.e., only phalangeal part cemented (14 cases ), or cemented In both components (4 cases). So far, 3 joint replacements h ad to be removed for pain. Radiological signs of loosening around the cemen ted phalangeal components were evident in 11 cases. There was no correlatio n between radiological loosening and discomfort. Conclusions: The implant c an reduce pain distinctly. Patients satisfaction with the treatment is rela tively high. The range of movement in the first MTP is still limited. In ou r opinion the ReFlexion(R) Prosthesis can be quoted as an acceptable altern ative for surgical treatment in advanced cases of hallux rigidus. In case o f failure a conversion to the distraction-arthrodesis is possible.