Skip to main content


  • Case Report
  • Open Access

A rare complication of a metacarpophalangeal joint replacement in a rheumatoid hand: a case report

  • 1Email author,
  • 1,
  • 2 and
  • 3
Cases Journal20092:7864

  • Received: 19 May 2009
  • Accepted: 28 July 2009
  • Published:


Metacarpophalangeal joint replacement is one of the most common surgery performed for rheumatoid hand deformities. The systemic and progressive nature of rheumatoid arthritis and other inflammatory arthritis make isolated assessment and treatment of metacarpophalangeal joint joints challenging.

Extensive joint involvement and systemic nature of the illness has an impact in the prognosis of the illness. The long term outcome of the surgical procedure depends on how best the illness is controlled. Technical aspects of the surgery in patients with rheumatoid arthritis can be widely variable and can make implant arthroplasty challenging. We present a case report of an unusual presentation of a rare complication following metacarpophalangeal joint replacement performed 17 years ago.


  • Index Finger
  • Skin Inflammation
  • Joint Replacement
  • Total Joint Replacement
  • Infected Nodule

Case presentation

A 71-year-old British white woman presented to the combined rheumatology/orthopaedic clinic with a painful nodule over her replaced metacarpophalangeal joint (MCP) of her index finger (Figure 1). There were signs of skin inflammation around the nodule. She was seen earlier by her general practitioner and was prescribed oral antibiotics for a possible infected rheumatoid nodule. Skin inflammation responded to antibiotics but the nodule persisted. Later, she was referred to rheumatologist for their opinion.
Figure 1
Figure 1

Protruded prosthesis coming out of the skin.

On examination, a nodule was seen over the metacarpophalangeal joint of the index finger. There was a thin thread like material projecting from the nodule. The surrounding skin was normal. There was an old well-healed surgical scar over her MCP joint. The nodule was shiny and firm on palpation. It was not reducible. There was no movement at the level of metacarpophalangeal joint and little movement in the rest of joints of her finger. She did not have any blood investigations as the inflammation had settled after a course of oral antibiotics.

The clinical diagnosis of a possible peri-prosthetic fracture was made which was confirmed on radiological investigations. It was decided to explore and proceed with possible revision metacarpophalengeal joint replacement.

On exploration, the nodule on her finger was part of the prosthesis of metacarpophalangeal joint replacement as we previously thought (Figure 2). The prosthesis has gone through the bone and than through the skin. She underwent revision metacarpophalangeal joint replacement. Patient had satisfactory result of the revision joint replacement surgery.
Figure 2
Figure 2

Removed silicone MCP prosthesis.


MCP joint replacement in rheumatoid arthritis (RA) patients is one of the commonest surgeries performed for hand deformities and functional difficulties. Complications reported for a MCP joint replacement are namely implant fracture, periprosthetic cyst formation, subsidence, and recurrent deformity over time period [1]-[4]. Breakage rates have generally ranged between 0% and 30% [1, 2, 5, 6], however, fracture rates as high as 82% at 5 years have been reported [1, 7, 8]. Other reported complications include delayed infection, silicone synovitis and lymphadenopathy, and rarely malignant lymphoma [9].

Protrusion of the prosthesis through the bone and than skin without any associated history of trauma is an extremely rare complication of metacarpophalangeal joint replacement. On reviewing literature, we found one case of index finger distal interphalangeal joint silicone arthroplasty, where the implant had eroded through the skin and was removed with satisfactory results [10].

Silicone arthroplasty for MCP joint replacement, introduced by Swanson in 1962, has remained the most popular procedure [5]. This is a constrained implant design and there are many constrained implants designs available in market. Long-term studies of these constrained implants demonstrate good pain relief, improved motion arc, correction of deformity, and high patient satisfaction [2, 5, 11]. While efforts are made to match the success of large total joint replacement, but difficulties are encountered when trying to transfer large joint technology to small joints of the hands. Most notable were the small size of joints, their place within the kinetic chain, complex soft tissue investments, and relationships to adjacent rays [12]. More recently, implants have moved toward semi-constrained or non-constrained designs and toward minimal bone resection that aims at preserving soft tissue supports to unload component stems and improve fixation while mimicking joint biomechanics. These implants are comparatively new in market and there long-term results are awaited.


Our case is unique and very rare reported complication. It initially presented like an infected nodule that turned out to be a loose, extruded MCP joint replacement prosthesis. This presentation signifies that a careful history and examination is important in identifying rare clinical presentation like this.




metacarpophalangeal joint


rheumatoid arthritis.


Authors’ Affiliations

Department of Clinical Research, Wrightington Hospital, Hall Lane, Appley Bridge, Wigan, Lancashire, WN6 9EP, UK
Department of Orthopaedics, Wrightington Hospital, Hall Lane, Appley Bridge, Wigan, Lancashire, WN6 9EP, UK
Department of Rheumatology, Wrightington Hospital, Hall Lane, Appley Bridge, Wigan, Lancashire, WN6 9EP, UK


  1. Blair WF, Shurr DG, Buckwalter JA: Buckwalter, Metacarpophalangeal joint implant arthroplasty with a Silastic spacer. J Bone Joint Surg. 1984, 66: 365-370.PubMedGoogle Scholar
  2. Schmidt K, Willburger RE, Miehlke RK, Witt K: Ten-year follow-up of silicone arthroplasty of the metacarpophalangeal joints in rheumatoid hands. Scand J Plast Reconstr Surg Hand Surg. 1999, 33: 433-438. 10.1080/02844319950159163.View ArticlePubMedGoogle Scholar
  3. Goldfarb CA, Stern PJ: Metacarpophalangeal joint arthroplasty in rheumatoid arthritis A long-term assessment. J Bone Joint Surg. 2003, 85: 1869-1878.PubMedGoogle Scholar
  4. Hagert CG, Eiken O, Ohlsson NM, Aschan W, Movin A: Metacarpophalangeal joint implants I. Roentgenographic study on the silastic finger joint implant, swanson design. Scand J Plast Reconstr Surg. 1975, 9: 147-157. 10.3109/02844317509022781.View ArticlePubMedGoogle Scholar
  5. Swanson AB: Flexible implant resection arthroplasty. Hand. 1972, 4: 119-134. 10.1016/0072-968X(72)90030-7.View ArticlePubMedGoogle Scholar
  6. Bieber EJ, Weiland AJ, Volenec-Dowling S: Volenec-Dowling, Silicone-rubber implant arthroplasty of the metacarpophalangeal joints for rheumatoid arthritis. J Bone Joint Surg. 1986, 68: 206-209.PubMedGoogle Scholar
  7. Beckenbaugh RD: Reconstructing the crippled arthritic hand. Geriatrics. 1976, 31: 89-93.PubMedGoogle Scholar
  8. Kay AG, Jeffs JV, Scott JT: Experience with Silastic prostheses in the rheumatoid hand A 5-year follow-up. Ann Rheum Dis. 1978, 37: 255-258. 10.1136/ard.37.3.255.View ArticlePubMedPubMed CentralGoogle Scholar
  9. Golz R, Kuschner SH, Gellman H: Sequential infection of silicone metacarpophalangeal joint arthroplasties resulting from skin breakdown. J Hand Surg. 1992, 17: 150-152. 10.1016/0363-5023(92)90131-8.View ArticleGoogle Scholar
  10. Zimmerman NB, Suhey PV, Clark GL, Wilgis EF: Silicone interpositional arthroplasty of the distal interphalangeal joint. J Hand Surg. 1989, 14: 882-887. 10.1016/S0363-5023(89)80095-4.View ArticleGoogle Scholar
  11. Kirschenbaum D, Schneider LH, Adams DC, Cody RP: Arthroplasty of the metacarpophalangeal joints with use of silicone-rubber implants in patients who have rheumatoid arthritis Long-term results. J Bone Joint Surg. 1993, 75: 3-12.PubMedGoogle Scholar
  12. Linscheid RL: Implant arthroplasty of the hand: retrospective and prospective considerations. J Hand Surg. 2000, 25: 796-816. 10.1053/jhsu.2000.4166.View ArticleGoogle Scholar


© licensee BioMed Central Ltd. 2009

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.