Loop Suture Technique for Flexor Digitorum Profundus Tendon Repair in the Insertion Site

고리 봉합법을 이용한 심부 수지 굴건 종지부에서의 건봉합

  • Lee, Kyu-Cheol (Department of Plastic and Reconstructive Surgery, Kwangmyung Sung-Ae General Hospital) ;
  • Lee, Dong-Chul (Department of Plastic and Reconstructive Surgery, Kwangmyung Sung-Ae General Hospital) ;
  • Kim, Jin-Soo (Department of Plastic and Reconstructive Surgery, Kwangmyung Sung-Ae General Hospital) ;
  • Ki, Sae-Hwi (Department of Plastic and Reconstructive Surgery, Kwangmyung Sung-Ae General Hospital) ;
  • Roh, Si-Young (Department of Plastic and Reconstructive Surgery, Kwangmyung Sung-Ae General Hospital) ;
  • Yang, Jae-Won (Department of Plastic and Reconstructive Surgery, Kwangmyung Sung-Ae General Hospital)
  • 이규철 (광명성애병원 성형외과) ;
  • 이동철 (광명성애병원 성형외과) ;
  • 김진수 (광명성애병원 성형외과) ;
  • 기세휘 (광명성애병원 성형외과) ;
  • 노시영 (광명성애병원 성형외과) ;
  • 양재원 (광명성애병원 성형외과)
  • Received : 2010.04.14
  • Accepted : 2010.07.08
  • Published : 2010.09.10

Abstract

Purpose: In the case of repair for far distal parts of FDP (Flexor digitorum profundus) division, the method of either pull-out suture or fixation of tendon to the distal phalanx is preferred. In this paper, the results of a modified loop suture technique used for the complete division of FDP from both zone 1a and distal parts of zone 1b in Moiemen classification are presented. Methods: From July 2006 to July 2009, the modified loop suture technique was used for the 10 cases of FDP in complete division from zone 1a and distal parts of zone 1b, especially where insertion sites were less than 1 cm apart from a tendon of a stump. In a suture technique, a loop is applied to each distal and proximal parts of tendon respectively. Core suture of 2-strand and epitendinous suture are done with PDS 4-0. Out of 10 patients, the study was done on 6 patients who were available for the followup. The average age of the patients was 49.1 years (in the range from 26 to 67). 5 males and 1 female patients were involved in this study. There were 3 cases with zone 1a and distal parts of zone 1b. The average distance to the distal tendon end was 0.6 cm. There were 5 cases underwent microsurgical repair where both artery and nerve divided. One case of only tendon displacement was presented. The dorsal protective splint was kept for 5 weeks on average. The results of the following tests were measured: active & passive range of motion, grip strength test, key pinch and pulp pinch test. Results: The follow-up period on average was 11 months, in the range from 2 to 20 months. There was no case of re-rupture, but tenolysis was performed in 1 cases. In all 6 cases, the average active range of motion of distal interphalangeal joint was 50.8 degree. The grip strength (ipsilateral/contralateral) was measured as 88.7% and the pulp pinch test was 79.2% as those of contralateral side. Flexion contracture was presented in 2 cases (15 degree on average) and there was no quadrigia effect found. Conclusion: Despite short length of tendon from the insertion site in FDS rupture in zone 1a and distal parts of zone 1b, sufficient functional recovery could be expected with the tendon to tendon repair using the modified loop suture technique.

Keywords

References

  1. Murphy BA, Mass DP: Zone I flexor tendon injuries. Hand Clin 21: 167, 2005 https://doi.org/10.1016/j.hcl.2004.12.004
  2. Moiemen NS, Elliot D: Primary flexor tendon repair in zone 1. J Hand Surg Br 25: 78, 2000 https://doi.org/10.1054/jhsb.1999.0319
  3. Boyer MI, Taras JS, Kaufmann RA: Flexor tendon injury. In Green DP, Hotchkiss RN, Pederson WC, Wolfe SW (eds): Green's operative hand surgery. 5th ed, Philadelphia, Churchill Livingstone, 2005, p 225
  4. Teo TC, Dionyssiou D, Armenio A, Ng D, Skillman J: Anatomical repair of zone 1 flexor tendon injuries. Plast Reconstr Surg 123: 617, 2009 https://doi.org/10.1097/PRS.0b013e3181956572
  5. McCallister WV, Ambrose HC, Katolik LI, Trumble TE: Comparison of pullout button versus suture anchor for zone I flexor tendon repair. J Hand Surg Am 31: 246, 2006 https://doi.org/10.1016/j.jhsa.2005.10.020
  6. Silva MJ, Hollstien SB, Brodt MD, Boyer MI, Tetro AM, Gerberman RH: Flexor digitorum profundus tendon-to-bone repair: an ex vivo biomechanical analysis of 3 pullout suture techniques. J Hand Surg Am 23: 120, 1998 https://doi.org/10.1016/S0363-5023(98)80099-3
  7. Malerich MM, Baird RA, McMaster W, Erickson JM: Permissible limits of flexor digitorum profundus tendon advancement-an anatomic study. J Hand Surg Am 12: 30, 1987 https://doi.org/10.1016/S0363-5023(87)80156-9
  8. Strickland JW, Glogovac SV: Digital function following flexor tendon repair in zone II: a comparison of immobilization and controlled passive motion techniques. J Hand Surg Am 5: 537, 1980 https://doi.org/10.1016/S0363-5023(80)80101-8
  9. Evans RB: A study of the zone I flexor tendon injury and implications for treatment. J Hand Ther 3: 133, 1990 https://doi.org/10.1016/S0894-1130(12)80392-9
  10. Kang N, Marsh D, Dewar D: The morbidity of the button-over-nail technique for zone 1 flexor tendon repairs. Should we still be using this technique? J Hand Surg Eur 33: 566, 2008 https://doi.org/10.1177/1753193408090118
  11. Hargreaves DG, Drew SJ, Eckersley R: Kirschner wire pin tract infection rates: a randomized controlled trial between percutaneous and buried wires. J Hand Surg Br 29: 374, 2004 https://doi.org/10.1016/j.jhsb.2004.03.003
  12. Boyer MI, Harwood F, Ditsios K, Amiel D, Gelberman RH, Silva MJ: Two-portal repair of canine flexor tendon insertion site injuries: histologic and immunohistochemical characterization of healing during the early post-operative period. J Hand Surg Am 28: 469, 2003 https://doi.org/10.1053/jhsu.2003.50091
  13. Silva MJ, Boyer MI, Ditsios K, Burns ME, Harwood FL, Amiel D, Gelberman RH: The insertion site of the canine flexor digitorum profundus tendon heals slowly following injury and suture repair. J Orthop Res 20: 447, 2002 https://doi.org/10.1016/S0736-0266(01)00139-5
  14. Leversedge FJ, Ditsios K, Goldfarb CA, Silva MJ, Gelberman RH, Boyer MI: Vascular anatomy of the human flexor digitorum profundus tendon insertion. J Hand Surg Am 27: 806, 2002 https://doi.org/10.1053/jhsu.2002.35080
  15. Kuwata S, Mori R, Yotsumoto T, Uchio Y: Flexor tendon repair using the two-strand side-locking loop technique to tolerate aggressive active mobilization immediately after surgery. Clin Biomech 22: 1083, 2007 https://doi.org/10.1016/j.clinbiomech.2007.08.016
  16. Hotokezaka S, Manske P: Differences between locking loops and grasping loops: Effects on 2-strand core suture. J Hand Surg Am 22: 995, 1997 https://doi.org/10.1016/S0363-5023(97)80038-X
  17. Lee H: Double loop locking suture: a technique of tendon repair for early active mobilization. Part I: evolution of technique and experimental study. J Hand Surg Am 15: 945, 1990 https://doi.org/10.1016/0363-5023(90)90021-I