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Floor plan - 2013 Annual Meeting - American Association for Hand ...

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ASRM SCIENTIFIC PAPER PRESENTATIONS:<br />

UPPER EXTREMITY<br />

Total and Subtotal Amputations with Destruction of the Proximal Interphalangeal and<br />

Metacarpal Phalangeal Joint: a Paradigm Shit Towards Salvage<br />

Institution where the work was prepared: Cali<strong>for</strong>nia Pacific Medical Center, San Francisco, CA, USA<br />

Darrell Brooks, MD; Rudolf F. Buntic; Buncke Clinic<br />

INTRODUCTION:<br />

Beneficial function can be obtained utilizing a staged approach <strong>for</strong> salvage of digital amputations through the proximal interphalangeal<br />

(PIP) and metacarpal phalangeal (MCP) joints. Completion amputation is currently recommended <strong>for</strong> these injuries. 1,2<br />

METHODS:<br />

Between 2002 and 2006 we treated 14 patients <strong>for</strong> total and subtotal amputations characterized by destruction of their PIP (12) and<br />

MCP (4) joints in a staged approach. In the initial stage, patients underwent restoration of joint height, reconstruction of joint supporting<br />

joint structures, as well as repair of tendons, vessels and nerves. Tissue was transferred or trans<strong>plan</strong>ted as needed <strong>for</strong> soft tissue coverage.<br />

In a subsequent stage, pyrolytic carbon two-piece arthroplasty (Ascension Austin, Texas) was per<strong>for</strong>med through a dorsal<br />

approach. Outcome evaluation involved range of motion (ROM), grip strength, pain, and analysis of the joint characteristics such as lateral<br />

stability, stem loosening, and subsidence.<br />

RESULTS:<br />

All patients completed 18 months follow-up evaluation. Mechanisms of injury included crush, ring avulsion, and saw. An average of 2.8<br />

(PIP group) and 2.0 digits (MCP group) were injured per hand. Range was 1-4 and 2-3 digits per hand respectively. All digits undergoing<br />

staged reconstruction survived. Outcome analysis is illustrated in table 1. Video documentation of function will be provided at presentation.<br />

CONCLUSION:<br />

In selected patients rewarding function can be obtained in cases previously thought to be a contraindication <strong>for</strong> salvage.<br />

Table 1.<br />

Patients Joint ROM (degrees)<br />

11<br />

3<br />

PIP (12)<br />

MCP (4)<br />

60-95<br />

65-90<br />

ROM<br />

(% of nl)<br />

60-95<br />

70-100<br />

157<br />

Avg. %<br />

Reference 1: Soucacous PN. Indications and selection <strong>for</strong> digital amputation and<br />

re<strong>plan</strong>tation. J <strong>Hand</strong> Surg [Br]. 2001 Dec;26(6):572-81.<br />

Reference 2: Allen DM, Levin LS. Tech <strong>Hand</strong> Up Exterm Surg. 2002<br />

79<br />

86.2<br />

Grip<br />

(% of nl)<br />

39-70<br />

12-66<br />

Avg. injured<br />

digits/hand<br />

2.8<br />

2.0

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