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First and Second Metacarpal Bone Fusion for First Carpometacarpal

Journal of Arthritis

ISSN - 2167-7921

Case Report - (2015) Volume 0, Issue 0

First and Second Metacarpal Bone Fusion for First Carpometacarpal Joint Arthritis in Rheumatoid Arthritis: A Case Report

Yasushi Morisawa1*, Atsushi Yoshida1 and Shinichiro Takayama2
1 Department of Orthopaedic Surgery, Saitama National Hospital, Japan
2 Department of Orthopaedic Surgery, National Center for Child Health and Development, Japan
*Corresponding Author: Yasushi Morisawa, MD, PhD, Department of Orthopaedic Surgery, Saitama National Hospital, 2-1 Suwa, Wako City, Saitama 351-0102, Japan, Tel: +81 48 462 1101, Fax: +81 48 464 1138 Email:

Abstract

A case of rheumatoid thumb carpometacarpal (CMC) arthritis with advanced osteolysis is reported. Although CMC joint arthrodesis was performed, bone union was not achieved, and pain and instability persisted. Therefore, first and second metacarpal bone fusion was performed with satisfactory results. While CMC joint arthrodesis or arthroplasty is typically performed, first and second metacarpal bone fusion appears to be a useful treatment option when there is marked osteolysis.

Keywords: Rheumatoid arthritis; First carpometacarpal joint; First and second metacarpal bone fusion

Introduction

If the degree of osteolysis is mild in rheumatoid thumb carpometacarpal (CMC) arthritis, patients are treated with CMC joint arthrodesis or arthroplasty. However, if there is severe or advanced osteolysis, these procedures are difficult to perform. A case in which first and second metacarpal bone fusion was performed in a patient with severe osteolysis is described.

Case Report

The patient was a 68-year-old woman with chief complaints of right hand finger rheumatoid deformities, specifically extensor tendon dislocation of the middle, ring, and little fingers, ulnar deviation of the ring and little fingers, and pain and instability of the thumb CMC joint. X-ray showed many collapsed carpal bones, dislocation of the metacarpophalangeal (MP) joint in the index, middle, ring, and little fingers, and marked osteolysis of the CMC joint (Figure 1). The patient had been taking methotrexate and adalimumab. Ulnar head resection, or the so-called “Darrach method,” had been performed 3 months previously for right wrist ulnar pain. Silicone implants were inserted into the index, middle, ring, and little fingers, abductor digiti minimi (ADM) was resected, crossed intrinsic transfer of the ring finger was performed to the radial side of the little finger MP joint, and the extensor tendons of the middle, ring, and little fingers were centralized.

arthritis-AP-X-ray-wrist

Figure 1: Preoperative AP X-ray of the wrist.

For the thumb CMC joint, the cartilage was scraped and fixed using a compression screw. Extensor tendon dislocation of the middle, ring, and little fingers, and ulnar deviation of the fingers were improved 2 months postoperatively. However, bone union was not achieved at the thumb CMC joint, and the screw began to protrude. In the repeat surgery, the screw was replaced, and Kirschner wire (K-W) was used for additional fixation.

However, bone healing was still not achieved, and the K-W began to protrude. Additionally, tenderness in the thumb CMC joint, as well as pain during thumb abduction and pinch movement, continued. Therefore, first and second metacarpal bone fusion was performed using an iliac bone graft 3 months after the initial surgery. Specifically, the sides of the first and second metacarpal bones were shaved, the cancellous bone was exposed, and the iliac bone was inserted and fixed with a compression screw (Figure 2). At 70 months post-operation, there was satisfactory flexion, extension, and abduction of the thumb, a certain degree of opening at the first web space, no pain at the CMC joint, and an improvement in pinch strength from 1 kg preoperatively to 2.6 kg postoperatively (Figure 3). Plain X-ray and CT images also showed bone union (Figure 4).

arthritis-first-second-metacarpal-bones

Figure 2: Intraoperative findings: iliac bone has been put between the first and second metacarpal bones.

arthritis-Flexion-extension-abduction

Figure 3: a-e Postoperative view (at the final follow-up) Flexion, extension, and abduction are satisfactory in the thumb, and a certain degree of opening of the first web space is also observed.

arthritis-X-ray-CT

Figure 4: Postoperative view (at final follow-up) A, X-ray; b, CT

Discussion

For rheumatoid thumb deformities, the classification method described by Nalebuff is well known [1]. The patient in the present case report corresponded to Type 3 of this classification. Type 3 is a deformity that initially appears at the thumb CMC joint where the first metacarpal bone shows an adduction deformity and the thumb shows a swan-neck deformity. In the present case, however, the patient only had a mild swan-neck deformity and no functional disorder at the MP and interphalangeal (IP) joints. The CMC joint had severe osteolysis, and the first metacarpal bone was shortened, subluxated, and in contact with the radius. For the treatment of a Type 3 CMC joint, procedures such as joint arthrodesis, artificial joint procedures, [2,3] and arthroplasty [4,5] are used. Each procedure has its advantages and disadvantages. For example, the joint arthrodesis fixes the thumb in the abduction position, but doing so restricts adduction movement. Moreover, the other two joints (MP and IP) involved in the arthrodesis procedure must be in relatively good form. In the artificial joint procedure, there are issues of repeat surgery [2] and synovitis of silicone products.3 In arthroplasty, there are issues such as persisting pain, [4] decreased pinch strength, and unclear long-term outcome [4,5]. In the current case, CMC joint arthrodesis was performed, but bone healing was not achieved.

In situations where severe bone deformation and osteolysis are present, where the trapezium is destroyed, and where the first metacarpal bone is shortened due to the proximity of the first metacarpal bone and radius, CMC joint arthrodesis and arthroplasty are typically difficult to perform. In arthroplasty, it is difficult to maintain the first web space and to restrict its movements, and if this restriction is strong, thumb adduction occurs. However, if first and second metacarpal bone fusion is performed, the first web space can be maintained, and thumb adduction can be prevented. In addition, it is easier to achieve bone healing due to the large recipient area of bone graft. If the rheumatoid arthritis is properly controlled, as long as bone union is completed and no subsequent correction losses occur, long-term pain relief can be anticipated postoperatively.

Conclusion

First and second metacarpal bone fusion appears to be a useful treatment option in rheumatoid arthritis patients with severe destruction of the thumb CMC joint.

References

  1. Nalebuff EA (1968) Diagnosis, classification and management of rheumatoid thumb deformities. Bull Hosp Joint Dis 29: 119-137.
  2. Blount AL, Armstrong SD, Yuan F, Burgess SD (2013) Porous polyurethaneurea (Artelon) joint spacer compared to trapezium resection and ligament reconstruction. J Hand Surg Am 38: 1741-1745.
  3. Pellegrini VD Jr, Burton RI (1986) Surgical management of basal joint arthritis of the thumb. Part I. Long-term results of silicon implant arthroplasty. J Hand Surg Am 11: 309-324.
  4. Pegoli L, Prashanth S, Calcagni M, Pivato G, Pajardi G (2005) The surgical treatment of the first carpometacarpal joint arthritis: evaluation of 400 consecutive patients treated by suspension arthroplasty. Hand Surg 10: 199-203.
  5. Mathoulin C, Moreel P, Costa R, Wilson SM (2008) Abductor pollicislongus "hammock" ligamentoplasty for treatment of first carpometacarpal arthritis. J Hand SurgEur Vol 33: 292-297.
Citation: Morisawa Y, Yoshida A, Takayama S (2015) First and Second Metacarpal Bone Fusion for First Carpometacarpal Joint Arthritis in Rheumatoid Arthritis: A Case Report. J Arthritis S1:010.

Copyright: © 2015 Morisawa Y, et al. 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 author and source are credited.