There is no financial information to disclose. Costal osteochondral grafting is a technique for providing anatomical and biological reconstruction of articular disorders. We have applied this procedure to the treatment of finger joint ankylosis. The purpose of this study was to clarify the mid- to long-term clinical outcomes of total finger arthroplasty using costal osteochondral autograft for finger joint ankylosis. The metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joints were approached dorsally through a longitudinal incision. The periosteum and capsule were elevated concurrent with the collateral ligaments and the volar plate all around the joint (Figure 62-1A). The ankylosed joint was separated at the original joint level. The ends of the phalanx and metacarpus were step-cut for the graft floor (Figure 62-1B). Two pieces of osteochondral graft were harvested from the fifth and sixth ribs and then manually trimmed to form a new MCP/PIP joint with adequate contours using a scalpel (Figure 62-1C). The bony part of the graft was step-cut and stabilized using low-profile screws (Figure 62-1D). Twenty-three finger joints (3 MCP joints and 20 PIP joints) in 23 patients with ankylosis were treated with costal osteochondral autograft with at least 5 years of follow-up. Participants were composed of 19 males and 4 females ranging in age from 18 to 55 years (mean, 33 years). Clinical outcomes including range of finger motion, the Japanese Society for Surgery of the Hand version of the Disability of the Arm, Shoulder, and Hand (DASH-JSSH) score, donor-site disturbances, and radiographic outcomes were evaluated after a mean follow-up of 77 months (range, 60–138 months). Significant improvement in active finger extension-flexion was seen from a preoperative mean of –24°/26° (arc: 2°) to –12°/75° (arc: 63°) at 1 year postoperatively (P < .001) and to –13°/75° (arc: 62°) at latest follow-up (P < .001). Mean preoperative DASH-JSSH score was initially 23.6, improving significantly to 6.6 at 1 year postoperatively, and to 5.2 by latest follow-up (P < .001) (Figure 62-2). Donor-site pain persisted only 1 to 2 weeks after surgery and raised no particular problems. One patient injured the operated finger while playing rugby football 2 years after surgery and needed additional costal osteochondral grafting. Other additional surgeries were collateral ligament reconstruction in 4 patients, corrective osteotomy of the phalanx in 2, and tenolysis in 1. •Total finger arthroplasty using costal osteochondral autograft for finger joint ankylosis showed anatomical and biological reconstruction and provided stable improvement of clinical outcomes with a mean follow-up of 77 months.Figure 62-1BAfter exposure of the ankylosed joint, the bone is separated with a chisel at the original PIP joint. The cut-off ends of the middle and proximal phalanx are step-cut.View Large Image Figure ViewerDownload Hi-res image Download (PPT)Figure 62-1CTwo pieces of osteochondral graft are harvested from the fifth and sixth ribs through an ipsilateral transverse sub-mammary incision. The harvested grafts are trimmed by hand to form the head of the proximal phalanx and base of the middle phalanx. The cartilaginous area of the graft is trimmed using a scalpel. Careful trimming is necessary to form adequate contours.View Large Image Figure ViewerDownload Hi-res image Download (PPT)Figure 62-1DThe bony part of the graft is step-cut and stabilized using low-profile screws. In closure, the central slip is reattached to the base of middle phalanx, and the collateral ligament, periosteum, and volar plate are repaired with 5-0 nylon sutures. A continuous distracting device is applied to the PIP joint to decrease friction between the joint surfaces.View Large Image Figure ViewerDownload Hi-res image Download (PPT)Figure 62-2Comparing range of motion preoperatively, at 1 year postoperatively, and at latest follow-up. *P < .001.View Large Image Figure ViewerDownload Hi-res image Download (PPT)
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