Clinical Outcome and Histologic Findings of Costal Osteochondral Grafts for Cartilage Defects in Finger Joints

Kazuki Satou, Takashi Sasaki, Toshiyasu Nakamura, Yoshiaki Toyama, Hiroyasu Ikegami

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Purpose: For the purpose of achieving anatomical reduction as precisely as possible, we performed osteochondral grafting from the costo-osteochondral junction in 16 patients (17 joints) with posttraumatic articular cartilage injury or avascular necrosis in finger joints. The purpose of this study was to review our series of costal osteochondral grafts in order to determine the practicality, effectiveness, and functionality of this grafting technique in a clinical setting. Methods: Patients were followed for at least 18 months postoperatively (18-57 months; average, 28 months). The injured joints included 3 metacarpophalangeal, 9 proximal interphalangeal, 3 distal interphalangeal, and 2 thumb interphalangeal joints. The defect accounted for 50% to 100% of the articular surface (average, 63%). Results: The average time until bone union of the graft was 58 days. The mean arc of motion was 13° before surgery versus 58° after surgery, with a mean increase of 45°. In 7 patients (8 joints), an extremely small portion (approximately 1 × 1 mm in size and thinner than 0.1 mm) of the implanted cartilage was obtained via biopsy using a scalpel with the consent of the patient at the time of screw removal and was used to prepare histologic specimens, which revealed scattered chondrocytes within the matrix without differences from normal hyaline cartilage in any. The chondrocytes in the grafts appeared viable, and the reconstruction of the joint surface could be confirmed histologically. Conclusions: Osteochondral grafting from the costo-osteochondral junction achieves excellent reconstruction of the injured joint without affecting other joints. This technique is particularly beneficial in cases where it is difficult to obtain allograft donors, as is often the case in Japan. Despite these encouraging findings in this small series, we believe that it is necessary to conduct further studies of this method over a longer period. Type of study/level of evidence: Therapeutic IV.

Original languageEnglish
Pages (from-to)511-515
Number of pages5
JournalJournal of Hand Surgery
Volume33
Issue number4
DOIs
Publication statusPublished - 2008 Apr

Fingerprint

Finger Joint
Cartilage
Joints
Transplants
Chondrocytes
Hyaline Cartilage
Thumb
Articular Cartilage
Allografts
Japan
Necrosis
Tissue Donors
Biopsy
Bone and Bones
Wounds and Injuries

Keywords

  • Articular cartilage
  • costal osteochondral graft
  • finger joint
  • osteochondral defect
  • rib

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

Cite this

Clinical Outcome and Histologic Findings of Costal Osteochondral Grafts for Cartilage Defects in Finger Joints. / Satou, Kazuki; Sasaki, Takashi; Nakamura, Toshiyasu; Toyama, Yoshiaki; Ikegami, Hiroyasu.

In: Journal of Hand Surgery, Vol. 33, No. 4, 04.2008, p. 511-515.

Research output: Contribution to journalArticle

Satou, Kazuki ; Sasaki, Takashi ; Nakamura, Toshiyasu ; Toyama, Yoshiaki ; Ikegami, Hiroyasu. / Clinical Outcome and Histologic Findings of Costal Osteochondral Grafts for Cartilage Defects in Finger Joints. In: Journal of Hand Surgery. 2008 ; Vol. 33, No. 4. pp. 511-515.
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