The Arthrosurface Toe HemiCAP® system is a surgical method for the treatment of localized cartilage lesions and defects in your shoulder joints. This system is comprised of the following elements: 3-D mapping technology Set of instruments to map and prepare the damaged area Cobalt-chrome CAP mated to a Titanium post and UHMWPE (polyethylene) tibial implant The system precisely aligns the surface of the implant to the contours of the patient's articular cartilage surface, thus filling the defect and restoring a smooth and continuous articular surface. The HemiCAP system has been developed so that it can be utilized via minimally disruptive surgical techniques. The HemiCAP Instrument Set enables the surgeon to accurately place the implant and precisely map the curves of the articular surface, in real-time, under direct or arthroscopic visualization, with no angle-induced errors or magnification errors that might exist with MRI, or X-ray imaging techniques. The HemiCAP system is intended to provide an effective interim means for managing pain and disability in the middle-aged patient until a total joint replacement treatment option becomes more necessary, and is part of a clinical treatment strategy to help avoid early-age-revision scenarios. The prosthetic may also provide a treatment option for the older patient who may not tolerate the morbidity of a total joint replacement procedure. The HemiCAP implants and instruments are designed to remove a minimal amount of bone stock, preserve functional structures and tissues, and allow for an uncomplicated removal in the event of revision.