PREDICTION OF ELBOW EXTENSOR TORQUE FOLLOWING POSTERIOR DELTOID TO TRICEPS TRANSFER IN TETRAPLEGIC PATIENTS

A. G Rothwell; T. F. Hobbs

doi:10.1302/0301-620X.88BSUPP_II.0880322

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PREDICTION OF ELBOW EXTENSOR TORQUE FOLLOWING POSTERIOR DELTOID TO TRICEPS TRANSFER IN TETRAPLEGIC PATIENTS

A. G Rothwell
T. F. Hobbs

PREDICTION OF ELBOW EXTENSOR TORQUE FOLLOWING POSTERIOR DELTOID TO TRICEPS TRANSFER IN TETRAPLEGIC PATIENTS

Rothwell AG, Hobbs TF. PREDICTION OF ELBOW EXTENSOR TORQUE FOLLOWING POSTERIOR DELTOID TO TRICEPS TRANSFER IN TETRAPLEGIC PATIENTS. Orthop Procs. 2006;88-B(SUPP_II):322-322. doi:10.1302/0301-620X.88BSUPP_II.0880322

Rothwell, A. G, and T. F. Hobbs. “PREDICTION OF ELBOW EXTENSOR TORQUE FOLLOWING POSTERIOR DELTOID TO TRICEPS TRANSFER IN TETRAPLEGIC PATIENTS.” Orthopaedic Proceedings, vol. 88-B, no. SUPP_II, 2006, pp. 322-322., https://doi.org/10.1302/0301-620X.88BSUPP_II.0880322

Rothwell, A. G., & Hobbs, T. F. (2006). PREDICTION OF ELBOW EXTENSOR TORQUE FOLLOWING POSTERIOR DELTOID TO TRICEPS TRANSFER IN TETRAPLEGIC PATIENTS. Orthopaedic Proceedings, 88-B(SUPP_II), 322-322. https://doi.org/10.1302/0301-620X.88BSUPP_II.0880322

Rothwell, A. G. and Hobbs, T. F. (2006) “PREDICTION OF ELBOW EXTENSOR TORQUE FOLLOWING POSTERIOR DELTOID TO TRICEPS TRANSFER IN TETRAPLEGIC PATIENTS.” Orthopaedic Proceedings, 88-B(SUPP_II), pp. 322-322. Available at: https://doi.org/10.1302/0301-620X.88BSUPP_II.0880322

Rothwell, A. G, and T. F. Hobbs. “PREDICTION OF ELBOW EXTENSOR TORQUE FOLLOWING POSTERIOR DELTOID TO TRICEPS TRANSFER IN TETRAPLEGIC PATIENTS.” Orthopaedic Proceedings 88-B, no. SUPP_II (2006): 322-322. https://doi.org/10.1302/0301-620X.88BSUPP_II.0880322

Rothwell AG, Hobbs TF. PREDICTION OF ELBOW EXTENSOR TORQUE FOLLOWING POSTERIOR DELTOID TO TRICEPS TRANSFER IN TETRAPLEGIC PATIENTS. Orthop Procs. 2006 May 1;88-B(SUPP_II):322-322. https://doi.org/10.1302/0301-620X.88BSUPP_II.0880322

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Abstract

We recorded the preoperative posterior deltoid (PD) and postoperative elbow extensor torque (EET) to determine if it is possible to predict the likely EET following PD transfer.

A custom built device (Troidometer) was used to measure the preoperative torque generated by the PD under maximum isometric contraction with the shoulder at 90° of abduction and the coronal plane and the elbow flexed at 90°. At a minimum of 3 months post surgery the maximum isometric EET was measured again with the Troidometer.

In a total of 17 arms in 9 patients the average preoperative PD was 9.5 Nm and the average post operative EET was 5.4 Nm or 57% of the PD preoperative torque. A paired sample test demonstrated a highly significant decrease (P = 0.001) and a correlation coefficient of 0.8 between the pre and post operative data. If a poor result from a revised transfer is excluded then the average EET is 60% of preoperative torque.

Based on this data it can be predicted that approximately 60% of the pre operative PD torque will postoperatively be converted to EET.

The abstracts were prepared by Editorial Secretary Jean-Claude Theis. Correspondence should be addressed to NZOA at Department of Orthopaedic Surgery, Dunedin Hospital, Private Bag 1921, Dunedin, New Zealand.